JP2021028267A - Discharge tray, sheet conveying device and information reading device - Google Patents

Abstract

To enable an extension tray to be fixed at a storage position, and to improve convenience in using the extension tray.SOLUTION: A discharge tray receiving a sheet discharged from a device body includes: a first tray rotatably provided to the device body; and a second tray rotatably provided to the first tray. The discharge tray includes a lock mechanism for locking the rotation of the second tray. The lock mechanism, when the first tray is positioned at a first position for receiving the sheet discharged from the device body, releases the lock of the rotation of the second tray so that the second tray can be spread from a state overlapped with the first tray.SELECTED DRAWING: Figure 13

Description

The present invention relates to a discharge tray, a sheet transfer device, and an information reading device.

A technology for providing an extension tray that can be stored in a device such as a copier, a scanner, a printer, etc., in order to reliably receive a sheet material that is long in the transport direction discharged from the device while reducing the size of the device. Is disclosed.

Japanese Unexamined Patent Publication No. 3-138259 JP-A-2007-186293

However, in the configuration disclosed in Patent Document 1, when the center of gravity of the extension tray is located upstream of the rotation axis in the transport direction, the extension tray may unintentionally open due to its own weight. Therefore, the extension tray may hit the device body and interfere with the storage operation, or the device body may be scratched.

Further, Patent Document 2 discloses a configuration in which a fitting portion is provided on the extension tray so that the extension tray can be fixed at the storage position. However, in the above configuration, when using the extension tray, it is necessary to translate the extension tray in order to remove it from the fitting portion and then rotate the extension tray, which causes a problem that troublesome operations increase.

In view of the above problems, it is an object of the present invention to provide a technique capable of fixing an extension tray in a storage position and further improving convenience when using the extension tray.

In order to solve the above problems, the discharge tray according to the present invention is a discharge tray that receives sheets discharged from the device main body, and the discharge tray is a first tray rotatably provided with respect to the device main body. And a second tray that is rotatably provided with respect to the first tray, the discharge tray includes a lock mechanism that locks the rotation of the second tray, and the lock mechanism is the device. When the first tray is located at the first position for receiving the sheet discharged from the main body, the second tray is rotated so that the second tray can be deployed from the state where the second tray overlaps the first tray. It is characterized by unlocking the lock.

According to the present invention, the extension tray can be fixed at the storage position, and the convenience when using the extension tray can be further improved.

The schematic diagram of the image reading apparatus which concerns on one Embodiment. The block diagram of the control unit of the image reader of FIG. The front view of the image reading apparatus which concerns on one Embodiment. Another front view of the image reader according to one embodiment. Top view of the image reader according to one embodiment. Another top view of the image reader according to one embodiment. The schematic sectional view of the image reading apparatus which concerns on one Embodiment. Another schematic cross-sectional view of the image reader according to one embodiment. A cross-sectional view of a main part of an image reader according to an embodiment. A cross-sectional view of an image reading unit of an image reading device according to an embodiment. The figure which roughly showed the discharge tray which concerns on one Embodiment. The figure which showed the extension tray regulation member when the main tray was opened in the state which the 1st extension tray which concerns on one Embodiment was stored. The figure which showed the extension tray regulation member when the main tray was closed in the state which the 1st extension tray which concerns on one Embodiment was stored. The figure which showed the state which the extension tray regulation member which concerns on one Embodiment began to be pushed by the abutting part. The figure which showed the detail of the image reading apparatus and the extension tray regulation member when it started to be pushed by the abutting part which concerns on one Embodiment. An image reading device in which the locking portion of the extension tray regulating member according to the embodiment begins to lock with the notch portion of the first extension tray, and an image reading device in which the discharge tray 2 is closed from the image reading device. The figure shown. Top view of the image reader according to one embodiment. Another schematic view of the discharge tray 300 according to one embodiment. The schematic sectional view of the discharge tray 300 which concerns on one Embodiment. The schematic sectional view of the discharge tray 300 which concerns on one Embodiment. (A) is a top view of the discharge tray 300 of FIG. 20, and (b) is a schematic cross-sectional view taken along line XX of FIG. 21 (a). (A) is a schematic view of the holding portion of the second extension tray in the state of FIG. 19, and (b) is a schematic view of the holding portion of the second extension tray in the state of FIG. The schematic sectional view of the discharge tray 300 which concerns on one Embodiment. (A) is a cross-sectional view of a main part when the second extension tray is stored, and (b) is a cross-sectional view of the main part when the second extension tray is upright. The schematic sectional view of the discharge tray 300 which concerns on one Embodiment. Top view of the discharge tray 300 according to one embodiment. (A) is a sectional view taken along line ZZ of FIG. 26. 27 (b) is an enlarged view of FIG. 27 (a).

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. It should be noted that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are essential to the invention. Two or more of the plurality of features described in the embodiments may be arbitrarily combined. In addition, the same or similar configuration will be given the same reference number, and duplicate description will be omitted.

(First Embodiment)
<Device configuration>
FIG. 1 is a schematic view of an image reading device A according to an embodiment. The image reading device A transports one or a plurality of transport media S loaded on the mounting table 1 one by one into the apparatus main body 100 along the path RT, reads the image, and reads the image from the apparatus main body 100 to the discharge tray 2. It is a discharge device. The transport medium S to be read is, for example, a sheet of OA paper, a check, a check, a business card, a card, or the like, and may be a thick sheet or a thin sheet. Examples of cards include insurance cards, driver's licenses, credit cards and the like. The transport medium S may also include a booklet such as a passport. When targeting a booklet, a holder (not shown) can be used. By accommodating the booklet in the spread state in the transparent holder and placing it on the mounting table 1, the booklet is conveyed together with the holder and the image can be read.

<Paper>
A first transport unit 10 is provided as a feed mechanism for feeding the transport medium S along the path RT. In the case of the present embodiment, the first transport unit 10 includes a feed roller 11 and a separation roller 12 arranged to face the feed roller 11, and sequentially transports the transport media S on the mounting table 1 one by one in the transport direction D1. To do. The driving force is transmitted to the feed roller 11 from the drive unit 3 of the motor or the like via the transmission unit 5, and the feed roller 11 is rotationally driven in the direction of the arrow in the figure (the forward direction in which the transfer medium S is conveyed along the path RT). Will be done. The transmission unit 5 is, for example, an electromagnetic clutch, and interrupts the driving force from the driving unit 3 to the feed roller 11.

<Drive>
The transmission unit 5 connects the drive unit 3 and the feed roller 11. For example, in the present embodiment, the transmission unit 5 is in a state in which the driving force is transmitted from the driving unit 3 to the feed roller 11 in a normal state, and shuts off the driving force when the transport medium S is reversely fed or stopped. The feed roller 11 is in a state where it can freely rotate when the transmission of the driving force is interrupted by the transmission unit 5. It should be noted that such a transmission unit 5 may not be provided when the feed roller 11 is driven in only one direction.

<Separation structure>
The separation roller 12 is arranged to face the feed roller 11 and separates the transport media S one by one, and is in pressure contact with the feed roller 11 at a constant pressure. The separation roller 12 is configured to be swingable and urged to the feed roller 11 in order to secure this pressure contact state. The driving force is transmitted from the driving unit 3 via the torque limiter 12a, and the separation roller 12 is rotationally driven in the direction of the solid arrow (the direction opposite to the forward direction of the feed roller 11).

Since the torque limiter 12a regulates the transmission of the driving force, the separation roller 12 rotates in the direction of the feed roller 11 (in the direction of the broken arrow arrow) when it is in contact with the feed roller 11. As a result, when a plurality of transport media S are transported to the pressure contact portion between the feed roller 11 and the separation roller 12, the transport medium closest to the feed roller 11 side is prevented from transporting two or more transport media S downstream. The transport medium S other than S is dammed by the separation roller 12.

In the present embodiment, the separation roller 12 and the feed roller 11 form a separation mechanism, but such a separation mechanism does not necessarily have to be provided, and the transport media S are sequentially fed to the path RT one by one. Any feeding mechanism may be used. Further, as the separation mechanism, instead of the separation roller 12, a separation pad that applies a frictional force to the transport medium S is pressed against the feed roller 11 to have a separation action similar to that of the separation roller 12. Good.

<Transport structure>
The image reading device A includes a second transport unit 20 and a third transport unit 30 in addition to the first transport unit 10 described above as its transport structure. The second transport unit 20 is provided on the downstream side of the first transport unit 10 in the transport direction. The second transport unit 20 includes a drive roller 21 and a driven roller 22 driven by the drive roller 21, and transports the transport medium S conveyed from the first transport unit 10 to the downstream side thereof. A driving force is transmitted to the drive roller 21 from a drive unit 4 such as a motor, and the drive roller 21 is rotationally driven in the direction of an arrow in the drawing. The driven roller 22 is pressed against the drive roller 21 at a constant pressure and is brought around to the drive roller 21. As an example, the driven roller 22 may be urged against the driving roller 21 by an urging unit (not shown) such as a spring.

The third transport unit 30 is provided on the downstream side in the transport direction with respect to the second transport unit 20. The third transport unit 30 includes the drive roller 31 and the driven roller 32 driven by the drive roller 31, and transports the transport medium S transported from the second transport unit 20 to the discharge tray 2. That is, the third transport unit 30 functions as a discharge mechanism.

A driving force is transmitted to the driving roller 31 from a driving unit 4 such as a motor, and the driving roller 31 is rotationally driven in the direction of an arrow in the drawing. The driven roller 32 is pressed against the drive roller 31 at a constant pressure and is brought around to the drive roller 31. The driven roller 32 may be urged with respect to the drive roller 31 by an urging unit (not shown) such as a spring.

The discharge tray 2 is pivotally supported by the device main body 100 via a first hinge 101 provided below the device main body 100 so as to be rotatable with respect to the device main body 100. Further, the discharge tray 2 includes a main tray 2a supported by the apparatus main body 100 and a first extension tray 2b supported by the main tray 2a. In the present embodiment, the first extension tray 2b is provided at the tip of the main tray 2a, that is, at the end opposite to the side where the main tray 2a is supported by the apparatus main body 100, via the second hinge 102. It is rotatably supported. As described above, in the present embodiment, the transport medium S is transported (sheet transport) by the apparatus main body 100, the first transport unit 10, the second transport unit 20, the third transport unit 30, the discharge tray 2, and the like.

<Image reading structure, control>
In the image reading device A of the present embodiment, the image is read by the image reading unit 70 arranged between the second transport unit 20 and the third transport unit 30. Therefore, the second transport unit 20 and the third transport unit 30 transport the transport medium S at a constant speed. Here, by always setting the transport speed by the second transport unit 20 and the third transport unit 30 to be equal to or higher than the transport speed of the first transport unit 10, the subsequent transport medium S catches up with the preceding transport medium S. It can be avoided. In the present embodiment, the speed of the transport medium S by the second transport unit 20 and the third transport unit 30 is controlled so as to be faster than the transport speed of the transport medium S by the first transport unit 10.

The transport speed of the transport medium S by the second transport unit 20 and the third transport unit 30 and the transport speed of the transport medium S by the first transport unit 10 may be constant. Even in this case, by controlling the drive unit 3 to shift the feeding start timing of the succeeding transport medium S, a predetermined interval can be provided between the preceding transport medium S and the succeeding transport medium S.

<Double feed detection>
The double feed detection sensor 40 is an example as a sensor for detecting the behavior and state of the sheet, and is arranged between the first transport unit 10 and the second transport unit 20 to detect the double feed of the transport medium S. For example, the double feed detection sensor 40 detects when the transport media S such as paper have passed through the first transport unit 10 in a state of being in close contact with each other due to static electricity or the like. Various types of double feed detection sensors 40 can be used. In the present embodiment, the double feed detection sensor 40 is an ultrasonic sensor, and includes an ultrasonic wave transmitting unit 41 and a receiving unit 42 thereof. The double feed detection sensor 40 is heavy on the principle that the amount of attenuation of ultrasonic waves passing through the transport medium S differs depending on whether the transport medium S such as paper is double feed or one by one. Detect feed.

<Resist sensor>
The medium detection sensor 50 is an example as a sensor for detecting the behavior and state of the sheet, and is located between the first transport unit 10 and the second transport unit 20 in the transport direction and downstream of the double feed detection sensor 40. Be placed. That is, the medium detection sensor 50 is an example as an upstream detection sensor arranged on the upstream side of the second transport unit 20. The medium detection sensor 50 detects the position of the transport medium S transported by the first transport unit 10, specifically, whether or not the end of the transport medium S has reached or passed the detection position of the medium detection sensor 50. .. Various media detection sensors 50 can be used, but in the case of the present embodiment, the medium detection sensor 50 is an optical sensor, includes a light emitting unit 51 and a light receiving unit 52 thereof, and receives light when the transport medium S reaches or passes through. The transport medium S is detected on the principle that the intensity (light receiving amount) changes.

In the case of the present embodiment, the medium detection sensor is such that the transport medium S has reached a position where double feed can be detected by the double feed detection sensor 40 when the tip of the transport medium S is detected by the medium detection sensor 50. Reference numeral 50 denotes a double feed detection sensor 40, which is provided on the downstream side thereof in the vicinity of the sensor 40. The medium detection sensor 50 is not limited to the above optical sensor, and for example, a sensor (image sensor or the like) capable of detecting the end of the transport medium S may be used, or a lever-type mechanical protruding from the path RT. Sensor may be used.

A medium detection sensor 60 different from the medium detection sensor 50 is arranged on the upstream side of the image reading unit 70. The medium detection sensor 60 is an example of a detection sensor on the downstream side arranged on the downstream side of the second transport unit 20, and detects the position of the transport medium S transported by the second transport unit 20. As the medium detection sensor 60, various ones can be used. In the present embodiment, the medium detection sensor 60 is an optical sensor like the medium detection sensor 50, includes a light emitting unit 61 and a light receiving unit 62, and the light receiving intensity (light receiving amount) changes depending on the arrival or passage of the transport medium S. The transport medium S is detected on the principle of doing so. In the present embodiment, the medium detection sensors 50 and 60 are arranged on the upstream side and the downstream side of the second transport unit 20 in the transport direction, respectively, but only one of them may be used.

<Arrangement of CIS>
The image reading unit 70 located on the downstream side of the medium detection sensor 60 is, for example, optically scanned, converted into an electric signal, and read as image data, and has a light source such as an LED, an image sensor, and a lens array inside. Etc. are provided. In the case of the present embodiment, the image reading units 70 are arranged one by one on both sides of the path RT, and read the images recorded on the front and back surfaces of the transport medium S. However, one may be arranged only on one side of the path RT, and only one side of the transport medium S may be read. Further, in the present embodiment, the image reading units 70 are arranged to face each other on both sides of the path RT, but for example, they may be arranged at intervals in the direction of the path RT.

<Explanation of block diagram>
The control unit 80 will be described with reference to FIG. FIG. 2 is a block diagram of the control unit 80 of the image reading device A.

The control unit 80 includes a CPU 81, a storage unit 82, an operation unit 83, a communication unit 84, and an interface unit 86. The CPU 81 controls the entire image reading device A by executing the program stored in the storage unit 82. The storage unit 82 is composed of, for example, a RAM, a ROM, or the like. The operation unit 83 is composed of, for example, a switch, a touch panel, or the like, and receives an operation from the operator.

The communication unit 84 is a communication interface for performing information communication with an external device. When a PC (personal computer) is assumed as the external device, the communication unit 84 may include, for example, a USB interface or a SCSI interface. Further, in addition to such a wired communication interface, the communication unit 84 may be used as a wireless communication interface, and may include both wired communication and wireless communication interfaces.

The interface unit 86 is an I / O interface that inputs / outputs data to / from the actuator 85 and the sensor 87. The actuator 85 includes a drive unit 3, a drive unit 4, a transmission unit 5, and the like. The sensor 87 includes a double feed detection sensor 40, medium detection sensors 50 and 60, an image reading unit 70, and the like.

<Drive by receiving start instruction from PC>
The basic operation of the image reader A will be described. When the control unit 80 receives, for example, an image reading start instruction from an external personal computer to which the image reading device A is connected, the control unit 80 starts driving the first to third transport units 10 to 30. The transport media S loaded on the mounting table 1 are transported one by one from the transport medium S located at the bottom thereof.

Further, as will be described later, the image reading may be started by the start key provided on the operation unit 83 of the image reading device A, and then the start of image reading may be notified to the external personal computer.

<Control during double feed>
During the transport, the transport medium S is determined by the double feed detection sensor 40 for the presence or absence of double feed, and if it is determined that there is no double feed, the transport is continued. On the other hand, when it is determined that there is double feed, the transport is stopped, or the capture of the subsequent transport medium S by the first transport unit 10 is stopped, and the transport medium S in the double feed state is discharged as it is. It may be.

<Start reading according to the output of the resist sensor>
The control unit 80 starts reading the image of the transport medium S transported by the second transport unit 20 by the image reading unit 70 at a timing based on the detection result of the medium detection sensor 60. The control unit 80 primarily stores the read images and sequentially transmits them to an external personal computer. The transport medium S from which the image has been read is discharged to the discharge tray 2 by the third transport unit 30, and the image reading process of the transport medium S is completed.

<Display panel configuration>
FIG. 3 is a front view of the discharge tray 2 of the image reading device A according to the embodiment in an unfolded state. More precisely, it is a view viewed from a direction perpendicular to the front panel 90 provided inclined to the front side of the image reading device A, and is viewed from slightly above the front surface in the state where the device is mounted. It is a diagram of the state.

A display panel 93 is provided on the front panel 90 at the upper part of the front surface, and an operation key group 122 as an example of the operation unit 83 is provided on the display panel 93.

The operation key group 122 is provided with a start key, a stop key, and the like for starting the operation of the image reading device A, and a display unit 94 is provided so as to be adjacent to the operation key group 122.

<Paper ejection structure>
The lower panel 91 at the lower part of the front surface is provided with a discharge opening 92, and the transport medium S transported by the third transport unit 30 is discharged.

FIG. 4 is a front view of the image reading device A according to the embodiment in a state where the discharge tray 2 is housed. The discharge tray 2 is pivotally supported via a first hinge 101 provided below the image reading device A so as to be rotatable with respect to the image reading device A. The discharge tray 2 includes a main tray 2a that receives the transport medium S discharged from the device main body 100, and is configured to cover the front surface of the device main body 100 with the main tray 2a.

The main tray 2a is rotatably attached to the device main body 100 of the image reading device A with the first hinge 101 as a fulcrum. In the present embodiment, the main tray 2a is formed to have the same size as the front panel 90, and in the stored state of the discharge tray 2 as shown in FIG. 4, the main tray 2a rotates with the first hinge 101 as a fulcrum so as to cover the front panel 90. It is folded into. The discharge opening 92 is open even when the discharge tray 2 is folded toward the front panel 90, so that the transport medium S can be discharged from the lower side of the discharge tray 2 to the mounting surface of the image reading device A. There is.

FIG. 5 is a top view of the image reading device A according to the embodiment in an unfolded state. The transport medium S transported by the third transport unit 30 is discharged to the main tray 2a through the discharge opening 92, and depending on the size of the transport medium S, the first extension tray 2b developed by rotating from the main tray 2a. Will be reached and guided.

The first extension tray 2b is rotatably attached to the main tray 2a with the second hinge 102 as a fulcrum. In the present embodiment, the first extension tray 2b has a shape having substantially the same curved surface as the loading surface of the main tray 2a when it overlaps with the main tray 2a when it is stored in the main tray 2a. Therefore, when the first extension tray 2b is unfolded, the discharge tray 2 has an S-shaped curved shape when viewed from the side of the image reading device A (see FIG. 1). The user can deploy the first extension tray 2b according to the length of the transport medium S in the transport direction, and the extension tray 2b is expanded so that the discharge tray 2 has a length that cannot be received by the main tray 2a alone. Can receive the transport medium S of. Further, by forming the discharge tray 2 into an S shape, a load is applied to the transport medium S, the discharged transport medium S is less likely to be scattered, and the alignment is improved. Further, since the S-shape makes the inclination gentle toward the downstream in the transport direction, the load applied to the transport medium S can be reduced, and the tip of the transport medium S can be prevented from curling upward.

<Details of delivery structure>
FIG. 6 is a top view of the image reading device A according to the embodiment in a state where the discharge tray 2 is housed. The feed tray 110 is provided with a regulation member 111 slidably attached in a direction orthogonal to the transport direction according to the size of the transport medium S to be arranged. Further, in the center of the feed tray 110, a paper feed extension tray 112 that can be pulled out and used is provided.

<Details of upper unit>
FIG. 7 is a schematic cross-sectional view of the image reading device A according to the embodiment. The apparatus main body 100 includes an upper unit 103 and a lower unit 104, and the upper unit 103 is rotatably attached to the lower unit 104 with the main body hinge 105 as a fulcrum. In this embodiment, the main body hinge 105 is provided coaxially with the first hinge 101, and has a common shaft member.

The center of gravity of the image reading device A in the deployed state of the upper unit 103 as shown in FIG. 8 is largely deviated to the downstream side in the transport direction from the state in which the upper unit 103 is housed as shown in FIG. Therefore, if there is momentum when deploying the upper unit, the apparatus main body 1000 may tip over. However, in the image reading device A according to the present embodiment, by having the protruding portion 130, it is possible to prevent the image reading device A from tipping over even if the center of gravity moves due to the deployment of the upper unit 103.

In the case of the present embodiment, the protruding amount of the protruding portion 130 is such that it fits below the discharge tray 2 in the stored state of the upper unit 103 and the discharge tray 2 as shown in FIG. Further, in the deployed state of the upper unit 103 as shown in FIG. 8, the amount of protrusion is such that the upper unit 103 protrudes downstream from the center of gravity of the apparatus main body 100 in the transport direction. As a result, it is possible to prevent the image reading device A from tipping over due to the deployment of the upper unit 103, and to prevent the image reading device A from protruding more than necessary in the stored state in which the discharge tray 2 is stored so as not to disturb the user. In particular, in the deployed state of the upper unit 103 as shown in FIG. 8, the protruding portion 130 extends to the downstream side in the transport direction from the center of gravity of the apparatus main body 100, so that the image reading device A can be more reliably overturned. Can be prevented.

<Ground of upper unit>
FIG. 9 is a cross-sectional view of a main part of the image reading device A according to the embodiment. If the upper unit 103 is vigorously rotated when it is housed, a large impact may be applied when the upper unit 103 comes into contact with the lower unit 104 side, and a loud noise may be generated. In the image reading device A of the present embodiment, metal upper elastic members 140 are provided on both sides of the separation roller 12 of the upper unit 103.

When the upper unit 103 is in the stored state, the upper elastic member 140 is elastically urged by the contact portion 141 provided on the lower unit 104 side and is in the stored state. The end of the upper elastic member 140 on the side attached to the upper unit 103 is conductive with the ground side of the electrical component provided in the upper unit 103. Then, the end portion is conducted to the ground side of the electrical component arranged in the lower unit 104 by the upper elastic member 140 coming into contact with the contact portion 141.

Therefore, in the stored state of the upper unit 103, the elastic member 140 that functions as a cushioning member can ground the upper unit 103 side.

<Ground of CIS unit>
FIG. 10 is a cross-sectional view of the image reading unit 70 of the image reading device A according to the embodiment. In the present embodiment, the image reading units 70 are arranged so as to face each other on both sides of the transport path RT, and are referred to as image reading units 70a and 70b in the following description, respectively. The image reading units 70a and 70b are sensor units having the same structure and are arranged on the target with the transport path RT interposed therebetween.

The image reading unit 70a is provided with a contact image sensor (hereinafter, CIS) 71a and a color reference plate 72a inside.

By transmitting the driving force of the CIS sliding motor 73 arranged in the lower unit 104 via the transmission member 74 and the transmission member connecting portion 150 provided in the lower part of the image reading unit 70, the CIS 71a and the color reference plate 72a are , Is slidable in the transport direction. The background color can be switched by sliding the CIS71a and the color reference plate 72a.

When the background color of the scanned image is white, the CIS 71a is slid by the CIS sliding motor 73, and the scanning position is arranged at the position of the white reference plate 72b facing the white background to enable the white background scanning. At this time, the CIS 71a and the white reference plate 72a move together. Therefore, when the CIS72a is arranged at the white background position, the white reference plate 72a is arranged at a position facing the reading position of the CIS72b, and both the image reading units 70a and 70b can read the white background.

When the background color of the scanned image is black, the black background can be read by arranging the reading position of the CIS 71a at the position of the opposite black background portion 76b.

Reading of the black background is realized by diffusing the light emitted from the light emitting element in the CIS71a on the slope of the black background portion 76b and preventing the light from entering the light receiving element in the CIS71a.

The image reading unit 70b has the same structure as the image reading unit 70a, but the CIS 71b is fixed in the unit without being driven by the CIS sliding motor 73.

When the image reading unit 70a is inserted into the accommodating portion (not shown) of the lower unit 104, the image reading unit 70a is inserted while urging a metal lower elastic member (not shown) protruding from the lower unit 104 side to complete the accommodation. At the position, it is fitted and fixed.

The lower surface of the image reading unit 70a is covered with a metal member (not shown), and is grounded with electrical components such as CIS71a. The image reading unit 70 is grounded to the lower unit 104 by being inserted while urging the lower elastic member with a metal member.

Here, since the image reading unit 70 is urged upward by the lower elastic member, the image reading unit 70 is lifted upward simply by removing the fitting and fixing, and the image reading unit 70 can be easily removed for maintenance. You can improve your sex.

The accommodating portion of the lower unit 104 is formed by bending a metal plate material so as to form three surfaces facing the lower unit 104.

<Structure of lock mechanism>
FIG. 11 is a diagram schematically showing the discharge tray 2 according to the embodiment, and in particular, a diagram showing the configuration of the lock mechanism 200. FIG. 11 shows a state in which the main tray 2a is unfolded and the first extension tray 2b overlaps with the main tray 2a (in a stored state). When the main tray 2a is unfolded, the lock mechanism 200 unlocks the rotation of the first extension tray 2b, and the first extension tray 2b is rotatable.

The lock mechanism 200 is a mechanism for locking the rotation of the extension tray 2b. In the case of the present embodiment, the lock mechanism 200 includes an extension tray regulating member 160, a pressing spring 15, a notch 201a, and an abutting portion 100a (contact portion). In the case of the present embodiment, the extension tray restricting member 160 and the pressing spring 15 are provided on the main tray 2a, the notch 201a is provided on the extension tray 2b, and the abutting portion 100a is provided on the device main body 100.

The extension tray regulating member 160 (lock member) is a member for restricting (locking) the rotation of the extension tray 2b. The extension tray restricting member 160 restricts the rotation of the extension tray 2b in a state where the extension tray 2b is housed (that is, a state in which the main tray 2a and the tray 2b overlap). In the case of the present embodiment, the extension tray restricting member 160 is provided near the first hinge 101 and can move in the thrust direction of the rotation axis of the main tray 2a. The lock mechanism 200 switches between locking and unlocking the rotation of the first extension tray 2b by moving the extension tray regulating member 160 in the thrust direction. In the case of the present embodiment, since the thrust direction of the rotation axis of the main tray 2a coincides with the width direction of the transport medium S, it can be said that the extension tray restricting member 160 can move in the width direction of the transport medium S. Hereinafter, the width direction of the transport medium S may be simply referred to as the width direction.

12 to 14 are also referred to. FIG. 12A is a diagram showing the lock mechanism 200 when the discharge tray 2 is opened with the first extension tray 2b stored, and FIG. 12B is a perspective view of the image reading device A at that time. It is a figure. Further, FIG. 13A is a diagram showing a lock mechanism 200 when the discharge tray 2 is closed with the first extension tray 2b stored, and FIG. 13B is an image reading device A at that time. It is a perspective view of. Further, FIG. 14A is a diagram showing a state in which the extension tray restricting member 160 protruding from the side surface of the main tray 2a starts to be pushed in by abutting against the abutting portion 100a of the apparatus main body 100. (B) is a perspective view of the image reading device A at that time.

In this embodiment, the extension tray regulating member 160 includes a main body portion 162, a locking portion 161 and an inclined portion 163. The main body portion 162 is a columnar portion whose axial direction is provided parallel to the axial direction of the rotation axis of the main tray 2a. The locking portion 161 is provided on one end side of the main tray 2a near the first hinge 101, and is a portion capable of locking the cutout portion 201a of the first extension tray 2b. In the case of the present embodiment, a notch 201a is provided at the inner end of the main body 162 in the width direction so as to project in the radial direction of the cylindrical shape of the main body 162. The inclined portion 163 comes into contact with the abutting portion 100a of the apparatus main body 100. When the abutting portion 100a comes into contact with the inclined portion 163, the extension tray restricting member 160 moves inward in the width direction.

The pressing spring 15 is provided so as to urge the extension tray restricting member 160 outward in the width direction. The extension tray restricting member 160 is urged by the pressing spring 15 to the outside in the width direction of the main tray 2a, that is, in the direction away from the first extension tray 2b. As a result, the other end side of the end portion of the extension tray regulating member 160 provided with the notch portion 201a can project outward in the width direction so as to overlap the abutting portion 100a of the apparatus main body 100 in the width direction. When the main tray 2a is open, the extension tray restricting member 160 overlaps the abutting portion 100a in the width direction. When the main tray 2a is closed from that state, the extension tray restricting member 160 is pushed by the abutting portion 100a of the apparatus main body 100 toward the inside of the main tray 2a, that is, in the direction approaching the first extension tray 2b. ..

Further, in the present embodiment, the width of the first extension tray 2b is narrower than that of the main tray 2a. Therefore, in a state where the first extension tray 2b is housed in the main tray 2a, the main tray 2a is divided into an area where the first extension tray 2b overlaps and an area where the first extension tray 2b does not overlap. The state in which the lock mechanism 200 locks the rotation of the first extension tray 2b can be said to be a state in which the extension tray restricting member 160 has entered the overlapping region. On the other hand, the state in which the lock mechanism 200 unlocks the rotation of the first extension tray 2b can be said to be a state in which the extension tray restricting member 160 is retracted from the overlapping region. That is, the extension tray restricting member 160 is provided so as to be able to advance and retreat at a position overlapping the first extension tray in the width direction.

<Activation of lock mechanism>
The operation of the lock mechanism 200 when the discharge tray 2 is expanded or stored will be described with reference to FIGS. 12 to 14. When the unfolded discharge tray 2 is stored, the position of the discharge tray 2 changes in the order shown in FIGS. 12 (b), 14 (b), and 13 (b).

FIG. 12A shows a state in which the main tray 2a of the discharge tray 2 is in a position of receiving the transport medium S discharged from the apparatus main body 100. In this way, when the main tray 2a is deployed (in the deployed position), the locking portion 161 of the extension tray regulating member 160 and the first extension tray 2b are generated by the urging force outward in the width direction by the pressing spring 15. The notch 201a is separated from the notch 201a in the width direction. That is, the extension tray restricting member 160 is in the retracted position for releasing the rotation lock of the first extension tray 2b, and the notch portion 201a is not locked by the locking portion 161. Therefore, the first extension tray 2b is rotatable and can be deployed and stored with respect to the main tray 2a. As described above, when the main tray 2a is in the position of receiving the transport medium S discharged from the apparatus main body 100, the lock mechanism 200 can be deployed from the state where the first extension tray 2b overlaps with the main tray 2a. , The rotation lock of the first extension tray 2b is released.

When the main tray 2a is closed from the unfolded state, the extension tray restricting member 160 protruding outward from the side surface of the main tray 2a in the state of FIG. 12A is shown in FIG. 14A. It begins to be pushed inward in the width direction by the abutting portion 100a of the device main body 100. At this time, the locking portion 161 of the extension tray restricting member 160 is locked with the notch portion 201a of the first extension tray 2b. Therefore, the rotation of the first extension tray 2b is restricted, and the state of being stored in the main tray 2a can be maintained.

Further, when the main tray 2a is closed and the main tray 2a is stored (in the stored position), the main tray 2a is further pushed inward in the width direction by the abutting portion 100a of the apparatus main body 100 as shown in FIG. 13A. .. Therefore, as in the state of FIG. 14A, the rotation of the first extension tray 2b is restricted by locking the locking portion 161 with the notch portion 201a. Hereinafter, the position of the extension tray restricting member 160 when the main tray 2a is in the storage position is referred to as a lock position.

In this way, when the discharge tray 2 is stored, the first extension tray 2b is rotatable when the main tray 2a is unfolded, but when the main tray 2a moves to the storage position side from a predetermined position, the first extension tray 2b is rotatable. 1 The rotation of the extension tray 2b is regulated by the extension tray regulating member 160. That is, the extension tray restricting member 160 moves between the retracted position and the lock position in conjunction with the rotation of the main tray 2a, so that the first extension tray 2b is moved according to the rotation position of the main tray 2a. Rotation is restricted. In the present embodiment, the extension tray restricting member 160 locks the rotation of the first extension tray 2b at least in the locked position, and unlocks the rotation of the first extension tray 2b at least in the retracted position. However, locking and unlocking at a position between the locked and retracted positions can be set as appropriate.

On the other hand, when the discharge tray 2 is unfolded, the rotation of the first extension tray 2b is restricted when the main tray 2a is stored, but when the main tray 2a moves to the unfolding position side from the predetermined position, the first extension tray 2a is unfolded. 1 The restriction on the rotation of the extension tray 2b is lifted. That is, when the discharge tray 2 is opened from the closed state, the extension tray regulating member 160 that has been pushed inward by the abutting portion 100a and is in the locked state is released, and the force of the pressing spring 15 releases the extension tray regulating member 160. It slides outward of the discharge tray 2 and is in the released state. At this time, the locking portion 161 of the extension tray regulating member 160 is separated from the notch portion 201a of the first extension tray 2b. Soon, the discharge tray 2 will be in the open state, and the first extension tray 2b can be stored and unfolded.

In this embodiment, the inclined portion 163 is provided on the extension tray regulating member 160. However, an inclined portion may be provided at the abutting portion 100a of the apparatus main body 100.

An example of regulation of rotation of the first extension tray 2b and timing of its release will be described with reference to FIGS. 15 and 16. FIG. 15 is a diagram showing details of the image reading device A and the locking mechanism 200 when they start to be pushed by the abutting portion 100a. FIG. 16 shows the image reading device A in a state (state 1801) in which the locking portion 161 of the extension tray restricting member 160 begins to lock with the notch 201a of the first extension tray 2b, and the discharge tray 2 is slightly closed from that state. It is a figure which showed the image reading apparatus A in the state (state 1802).

In a state where the center of gravity of the first extension tray 2b is closer to the device main body 100 than the perpendicular line connecting the rotation axis of the first extension tray 2b and the ground (see FIG. 12B), the first extension tray 2b Its own weight works to hold the first extension tray 2b in a state of being stored in the main tray 2a. However, when the discharge tray 2 is closed from the unfolded state to the state shown in the state 1801, the center of gravity of the first extension tray 2b is from the device main body 100 rather than the perpendicular line connecting the rotation axis of the first extension tray 2b and the ground. Located on the far side. Therefore, the weight of the first extension tray 2b starts to work in the direction in which the first extension tray 2b expands from the main tray 2a. Further, as the discharge tray 2 is closed (see the state 1802), the force for unfolding the first extension tray 2b due to the weight of the first extension tray 2b increases. As a result, the first extension tray 2b may expand due to its own weight when the discharge tray 2 is closed (or opened).

However, in the present embodiment, as shown in the state 1801, when the weight of the first extension tray 2b starts to work in the direction of deploying the first extension tray 2b from the main tray 2a, the locking portion 161 engages with the notch 201a. It is configured to start stopping (Fig. 15). As a result, as shown in the state 1802, the rotation of the first extension tray 2b is restricted in a state where the force acting on the extension tray 2b in the direction of unfolding from the main tray 2a is increased. Therefore, there is no concern that the first extension tray 2b will expand and hit the main body, and the discharge tray 2 can be smoothly rotated to the storage position shown in FIG. That is, the lock mechanism 200 is at least in the section between the position where the weight of the first extension tray 2b starts to work in the direction of deploying the first extension tray 2b and the position where the discharge tray 2 is stored. Lock the rotation of 2b.

The section in which the lock mechanism 200 locks the rotation of the extension tray 2b when opening and closing the discharge tray 2 can be appropriately designed. For example, it is conceivable that the second hinge 102 has a sliding resistance that hinders the rotation of the first extension tray 2b. Therefore, the lock mechanism 200 may lock the rotation of the first extension tray 2b at least in a section where the force for deploying the first extension tray 2b due to its own weight of the first extension tray 2b exceeds the sliding resistance. That is, the lock mechanism 200 may lock the rotation of the first extension tray 2b at least in the section where the first extension tray 2b is deployed when the rotation of the first extension tray 2b is not locked. Alternatively, the extension tray 2b may be unlocked by the lock mechanism 200 only when the discharge tray 2 is almost expanded, and the extension tray 2b may be locked by the lock mechanism 200 in other sections.

As described above, according to the present embodiment, when the main tray 2a is located at the position where the lock mechanism 200 receives the transport medium S discharged from the apparatus main body 100, the first extension tray 2b can be deployed. As described above, the rotation lock of the first extension tray 2b is released. Therefore, when the user tries to expand the first extension tray 2b, the lock is released, there is no troublesome operation when using the extension tray, and the convenience when using the extension tray can be further improved.

Further, according to the present embodiment, the rotation of the first extension tray 2b is locked at a position where the first extension tray 2b can be deployed by its own weight when the main tray 2a is stored. Therefore, it is possible to prevent the first extension tray 2b from expanding and hitting the device main body 100 or hindering the storage while the main tray 2a is stored.

Therefore, according to the present embodiment, the extension tray can be fixed at the storage position, and the convenience when using the extension tray can be further improved.

Although the image reading device has been described as an example in the present embodiment, the paper output tray according to the present embodiment can be adopted for the same image forming device and the sheet processing device.

Further, in the present embodiment, the discharge tray 2 is composed of two trays, the main tray 2a and the first extension tray 2b, but the two trays may be not limited to two. For example, by providing the first extension tray 2b with a rotatable extension tray, a longer transport medium S can be received by the discharge tray 2.

Further, in the present embodiment, the extension tray regulating member 160 is a member including a cylindrical shape that can move in the rotation axis direction of the first extension tray 2b, but it is an example in the above embodiment and depends on the shape and the member of the member. The mode of restricting the rotation of the first extension tray 2b can be changed as appropriate.

Further, although it is regulated by the extension tray regulating member 160 that regulates the rotation of the first extension tray 1b, a click is provided between the first extension tray 1b and the main tray 2a, and the first extension tray 1b is the main. The tray 2a may be regulated with a certain degree of regulatory force. Even in that case, by using the extension tray regulating member 160 of the present embodiment, the holding force due to clicking can be reduced and the operability is improved. can do.

(Second Embodiment)
Hereinafter, the second embodiment will be described. The configurations overlapping with the first embodiment are designated by the same reference numerals and the description thereof will be omitted, and the configurations different from those of the first embodiment will be mainly described.

As described above, in devices such as copiers, scanners, printers, etc., an extension tray that can be stored in the device is discharged in order to reliably receive the sheet material discharged from the device in the transport direction while reducing the size of the device. The technology provided for the tray is disclosed.

In such a device, the extension tray can be used to reliably receive the sheet material long in the transport direction. On the other hand, since sheet materials of various sizes can be discharged in devices such as copiers, scanners, and printers, it is desired to improve the alignment of the discharged sheet materials according to the size. Therefore, in the second embodiment, a technique for further improving the alignment of the discharge sheet material will be described.

FIG. 17 is a top view of the image reading device B according to the embodiment in an unfolded state. In the present embodiment, the discharge tray 300 is rotatable to a main tray 300a rotatably supported by the apparatus main body 100, a first extension tray 300b rotatably supported by the main tray 300a, and a tray 300b. Includes a second extension tray 300c supported by. By appropriately deploying the first extension tray 300b and the second extension tray 300c according to the length of the discharged sheet in the transport direction, sheets of various sizes can be reliably received. The main tray 300a can be pulled out from the apparatus main body 100, and a configuration in which the first extension tray 300b and the second extension tray 300c can be rotated can also be adopted.

In the state of FIG. 17, the transport medium S transported by the third transport unit 30 (see FIG. 1) is discharged to the main tray 300a through the discharge opening 92. Then, depending on its size, the transport medium S reaches the first extension tray 300b that is rotated and unfolded from the main tray 300a or the second extension tray 300c that is rotated and unfolded from the first extension tray 300b. You will be guided.

FIG. 18 is a diagram showing an outline of the first extension tray 300b and the second extension tray in the state shown in FIG. In the case of the present embodiment, the first extension tray 300b is a substantially rectangular plate-shaped member. One end of the first extension tray 300b is rotatably supported by the main tray 300a, and the second extension tray 300c is rotatably supported by the other end facing the one end. Further, the first extension tray 300b is provided with a storage area 312 for accommodating the second extension tray 300c. For example, the storage area 312 is formed by an inner wall 311 that corresponds to the shape of the second extension tray 300c. Due to the presence of the storage area 312, the second extension tray 300c can rotate 360 degrees with respect to the first extension tray 300b.

The inner wall 311 is provided with a locking portion 303 that projects toward the storage area 312. On the other hand, the second extension tray 300c is provided with a locking portion 302 protruding from the side wall 310. The locking portion 302 and the locking portion 303 have a corresponding positional relationship when the second extension tray 300c fits in the storage area. When the first extension tray 300b is deployed, the locking portion 302 and the locking portion 303 are locked so that the second extension tray 300c is held in the storage area 312. In other words, the locking portion 302 is caught by the locking portion 303, so that the second extension tray 300c is held in the storage area 312. The second extension tray 300c is configured to be elastically deformable, and the locking portion 302 can get over the locking portion 303 by applying a force. Therefore, the second extension tray 300c can rotate 360 degrees.

In the present embodiment, the locking portion 303 has an L-shape protruding from the inner wall 311, and this shape is an example. For example, it may have a shape capable of locking the locking portion 302, such as an I-shape extending in the transport direction.

FIG. 19 is a schematic cross-sectional view of the image reading device A according to the embodiment in a state where the main tray 300a is unfolded and the first extension tray 300b and the second extension tray 300c are housed. Further, FIG. 20 is a schematic view showing a state in which the second extension tray is rotated from the state of FIG. Since the second extension tray 300c can rotate 360 degrees with respect to the first extension tray 300b, the second extension tray 300c can rotate even when the first extension tray 300b is housed in the main tray 300a. In this case, the second extension tray 300c can rotate in the direction opposite to the rotation direction (arrow direction in FIG. 18) when the first extension tray 300b is deployed (arrow direction in FIG. 20). That is, the second extension tray 300c is rotatable in a state where the first extension tray 300b is expanded from the main tray 300a, and is rotatable in a state where the first extension tray 300b is overlapped with the main tray 300a. ..

21 (a) is a top view of FIG. 20, and FIG. 21 (b) is a cross-sectional view taken along the cross section X of FIG. 21 (a). 22 (a) is a schematic view of the holding portion of the second extension tray 300c when stored in FIG. 19, and FIG. 22 (b) is a schematic view of the holding portion of the second extension tray 300c in the state of FIG. 20. Is. 22 (a) and 22 (b) are views of the second extension tray 300c viewed from the device main body 100 side, respectively.

The locking portion 302 of the second extension tray 300c is held after passing over the locking portion 303 of the first extension tray 300b (FIG. 20). By providing the locking portions 302 and 303 so that the second extension tray 300c is angled with respect to the first extension tray 300b as shown in the figure, the alignment of the transport medium S discharged to the discharge tray 2 is remarkably improved. Can be improved. In particular, when the length of the sheet in the transport direction is shorter than that of the main tray 300a, a load is generated on the transport medium S after discharge, so that the alignment is improved. Further, since the end portion of the transport medium S floats depending on the angle of the second extension tray 300c, it can be easily taken out. Therefore, the convenience of the user is improved.

FIG. 23 is a schematic cross-sectional view when the main tray 300a of the image reading device A according to the embodiment is unfolded and the second extension tray 300c is rotated in an upright state with the first extension tray 300b stored. .. Further, FIG. 24A is a cross-sectional view of a main part of the second extension tray 300c when the second extension tray 300c is stored (state of FIG. 19). Further, FIG. 24B is a cross-sectional view of a main part of the second extension tray 300c when the second extension tray 300c is upright (state in FIG. 23). 24 (a) and 24 (b) are cross-sectional views taken along the line YY of FIG. 23.

The main tray 300a is provided with a locking portion 304, and the second extension tray 300c is provided with a locking portion 305. When the second extension tray 300c is rotated with respect to the first extension tray 300b, the locking portion 305 of the second extension tray 300c is held after passing over the locking portion 304 of the main tray 300a (FIG. 24 (FIG. 24). b)). By holding the second extension tray 300c in the upright state, the position of the end portion of the transport medium S on the downstream side in the transport direction is defined, so that the discharged transport medium S is less likely to be scattered and the paper ejection alignment is improved. To do.

In the present embodiment, the locking portion 305 of the second extension tray 300c is locked with the locking portion 304 of the main tray 300a, and the second extension tray 300c is held in an upright state. However, the second extension tray 300c may be held in an upright state by the first extension tray 300b or the apparatus main body 100. As an example, the second extension tray 300c may be fixed in an upright state by abutting against the front surface of the apparatus main body 100.

Further, in the present embodiment, the second extension tray 300c is held at an angle shown in FIG. 20 with respect to the first extension tray 300b, but a configuration in which the second extension tray 300c is held at a plurality of angles can also be adopted. That is, the second extension tray 300c may be positioned stepwise in a state where the first extension tray 300b overlaps the main tray 2a. Moreover, the holding method can be appropriately designed.

<Adjustment of discharge tray angle>
As another example of use of the second extension tray 300c, the angle adjustment of the discharge tray will be described. FIG. 25 is a schematic cross-sectional view showing a usage example of the second extension tray. In the example shown in FIG. 25, the second extension tray 300c abuts on the main body installation surface 306 with the main tray 300a and the first extension tray 300b unfolded. In this way, the angle of the discharge tray 2 can be finely adjusted with high accuracy by abutting the second extension tray 300c against the main body installation surface 306. Specifically, as compared with the case where the main tray 300a touches the ground without hitting the second extension tray 300c, fine adjustment is performed by changing the angle of the second extension tray 300c that hits the main body installation surface 306. Can be done. For example, a configuration in which the second extension tray 300c can be fixed to the first extension tray 300b at a plurality of angles can also be adopted.

As described above, according to the second embodiment, the transport medium S discharged at various angles can be supported by using the second extension tray 300c. Therefore, the discharge tray 300 can support the transport medium S at an angle corresponding to the size and the like of the transport medium S, and the alignment can be improved.

In the present embodiment, the shape of the first extension tray 300b is formed so that the concave sides of the curved surfaces of the respective loading surfaces face each other in a state where the main tray 300a and the first extension tray 300b overlap. That is, the shape of the first extension tray 300b is configured so that when the main tray 300a and the first extension tray 300b are unfolded, a loading surface having a downwardly convex curved surface is formed as the entire discharge tray 300. However, the first extension tray 300b may have a shape having substantially the same curved surface as the loading surface of the tray 300 when it overlaps with the main tray 300a, like the first extension tray 2b of the first embodiment. That is, when the main tray 300a and the first extension tray 300b are unfolded, the discharge tray 300 may have an S-shaped curve when viewed from the side of the image reading device A. In other words, the R shape of the first extension tray 300b may be in either direction.

(Third Embodiment)
Hereinafter, the third embodiment will be described. The configurations overlapping with the second embodiment are designated by the same reference numerals and the description thereof will be omitted, and the configurations different from those of the second embodiment will be mainly described.

<Discharge structure>
FIG. 26 is a top view of the image reading device A according to the third embodiment in an unfolded state. The third embodiment is different from the second embodiment in that the second extension tray 300c is provided with a slide member 300d that can move in the transport direction.

Similar to the second embodiment, in order to make the second extension tray 300c rotatable 360 degrees with respect to the first extension tray 300b, it is necessary to form the storage area 307. However, it can be said that the storage area 307 is a hole formed on the transport path of the transport medium S. Therefore, for example, if the tip end portion of the transport medium S thrusts into the storage area 307, a paper jam may occur.

In the third embodiment, the slide member 300d provided on the second extension tray 300c can close the storage area 307 which is a hole when the second extension tray 300c is unfolded. This makes it possible to prevent a paper jam in the transport medium S.

27 (a) is a sectional view taken along line ZZ of FIG. 26. 27 (b) is an enlarged view of FIG. 27 (a). The slide member 300d has shafts 308 at both ends in the width direction, and the second extension tray 300c has support portions 309 that support the shaft 308. The support portion 309 is opened so that the slide member 300d can move in the transport direction. For example, the support portion 309 is a groove that slidably supports the shaft 308.

Although the storage area 307 is closed by the slide member 300d, the storage area 307 may be closed by the rotating member provided on the second extension tray 300c.

As described above, according to the third embodiment, since the slide member 300d closes the storage area 307 which is a hole on the transport path, the discharge tray 300 can prevent a paper jam in the transport medium S.

The invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the gist of the invention.

A image reader, S transport medium, 1 mounting table, 2 discharge tray, 2a 1st discharge tray, 2b 1st extension tray, 3 drive unit, 4 drive unit, 5 transmission unit, 10 1st transport unit, 11 feed roller , 12 Separation roller, 15 Pressing spring, 20 2nd transport unit, 30 3rd transport unit, 70 image reading unit, 80 control unit, 90 front panel, 100 device body, 100a abutment unit, 122 operation key group, 160 extension Tray control member, 161 locking part, 201a notch

Claims (12)

A discharge tray that receives the sheet discharged from the device body.
The discharge tray includes a first tray rotatably provided with respect to the apparatus main body and a second tray rotatably provided with respect to the first tray.
The discharge tray includes a locking mechanism that locks the rotation of the second tray.
When the first tray is located at the first position for receiving the sheet discharged from the apparatus main body, the lock mechanism can be deployed from a state in which the second tray overlaps with the first tray. Unlocking the rotation of the second tray,
The discharge tray is characterized by that. The first tray is rotatable between the first position and the second position covering the apparatus main body.
The lock mechanism rotates the second tray in a section between the first position and the second position in which at least the weight of the second tray acts in the direction in which the second tray is deployed. Lock,
The discharge tray according to claim 1, wherein the discharge tray is characterized in that. The locking mechanism includes a locking member that moves between a locking position that locks the rotation of the second tray and a retracting position that unlocks the rotation of the second tray.
The lock member moves between the lock position and the retracted position in conjunction with the rotation of the first tray.
The discharge tray according to claim 2, wherein the discharge tray is characterized in that. The discharge tray according to claim 3, wherein the lock member is movable in the axial direction of the rotation shaft of the first tray. The device main body is provided with a contact portion that comes into contact with the lock member.
The lock member moves by rotating the first tray in a state where the contact portion is in contact with the inclined portion provided on the lock member.
The discharge tray according to claim 4, wherein the discharge tray is characterized in that. The device main body is provided with a contact portion that comes into contact with the lock member.
The lock member moves by rotating the first tray in a state where the inclined portion provided on the contact portion is in contact with the lock member.
The discharge tray according to claim 4, wherein the discharge tray is characterized in that. The discharge tray according to any one of claims 1 to 6, further comprising a third tray that is rotatable with respect to the second tray. The third tray is characterized in that the second tray can be rotated in a state of being unfolded from the first tray, and the second tray can be rotated in a state of being overlapped with the first tray. The discharge tray according to claim 7. The discharge tray according to claim 8, wherein the third tray can be positioned stepwise in a state where the second tray overlaps with the first tray. The discharge tray according to any one of claims 7 to 9, wherein the third tray can rotate 360 degrees with respect to the second tray. With the device body
A transport means for transporting the sheet fed to the apparatus main body along the transport path, and
A discharge tray for receiving the sheet discharged from the apparatus main body is provided.
The discharge tray includes a first tray rotatably provided with respect to the apparatus main body and a second tray rotatably provided with respect to the first tray.
The discharge tray includes a locking mechanism that locks the rotation of the second tray.
When the first tray is located at the first position for receiving the sheet discharged from the apparatus main body, the lock mechanism can be deployed from a state in which the second tray overlaps with the first tray. Unlocking the rotation of the second tray,
A sheet transfer device characterized by this. The sheet transport device according to claim 11 and
A reading means for reading an image recorded on a sheet conveyed by the sheet conveying device is provided.
An image reader characterized by this.