JP6786208B2 - Sheet transfer device with cover and cover - Google Patents

Description

The present invention relates to a cover and a platen, and a sheet transfer device including the cover, the platen, or both.

As an example of the cover, the platen of the sheet transport device needs to have a certain size in order to stably load the originals. For example, if the paper feed tray on which the paper to be fed is placed or the paper output tray of the device for loading the ejected documents is configured to protrude to the front of the device, this is because the installation area of the device is reduced. Some of the paper trays can be stored in the main body. There are various ways to store the platen, but there are devices that can be stored compactly along the main body, and the platen doubles as a cover that covers the main body of the device, improving the design.

For example, in Patent Document 1, a top surface portion tilted so as to be seen from the front surface of the device and a front surface portion arranged below the top surface portion are provided, and a cover that also serves as a platen covers both the top surface and the front surface of the device when stored. A device has been proposed. The proposed device is a sheet transfer device that feeds documents from above to below the device, and since the above-mentioned document stand is a paper output tray on which the transferred documents are loaded, the platen is a rotation provided below the device. It is rotatably supported by a hinge on the main body. In addition, it can be bent around the rotating hinge provided in the middle of the platen, and it is stored in the main body in the folded state and used as the platen in the extended state. However, in the case of a configuration in which the platen that is bent in two is connected to the main body by a lower hinge and placed on an oblique upper surface for storage, the platen may be lifted from the main body during storage.

JP-A-2010-62839

The present invention provides a cover that does not easily remain floating from the main body of the device in the stored state.

According to the present invention, for example
A cover having an upper surface portion and a front surface portion adjacent to the upper surface portion, and arranged in a device in which the upper surface portion is inclined toward the front surface portion.
The cover is composed of a first member and a second member, and the first member is rotatably supported by a first rotating hinge provided in front of and below the device, and is rotatably supported by the second member. Is rotatably supported by the first member by a second rotating hinge.
The cover can hold either a stored state or a used state with respect to the device, and in the stored state, the first member overlaps the front surface portion and the second member overlaps the upper surface portion. In the used state, the overlap between the first member and the front surface portion and the overlap between the second member and the upper surface portion are released.
A first torque generating member for generating torque on the first rotating hinge and a second torque generating member for generating torque on the second rotating hinge are provided.
The first torque generating member generates torque in the direction of attracting the first member to the retracted state.
The second torque generating member generates torque in a direction in which the second member is opened in a used state .

According to the present invention, it is possible to provide a cover that does not easily float from the main body of the device during storage.

The schematic diagram of the image reading apparatus which concerns on one Embodiment of this invention. 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 of this invention. Another front view of the image reader according to the embodiment of the present invention. Top view of the image reader according to the embodiment of the present invention. Another top view of the image reader according to the embodiment of the present invention. The schematic sectional view of the image reading apparatus which concerns on one Embodiment of this invention. Another schematic cross-sectional view of the image reader according to an embodiment of the present invention. The side view of the image reading apparatus which concerns on one Embodiment of this invention. The side view of the image reading apparatus which concerns on one Embodiment of this invention. The side view which showed the relationship between the bending angle β and the body angle α of the discharge tray 2 which concerns on one Embodiment of this invention. FIG. 5 is a side view showing the relationship between the bending angle β of the discharge tray 2 and the stored state of the discharge tray 2 according to the embodiment of the present invention. The schematic sectional view of the stored state of the discharge tray 2 which concerns on one Embodiment of this invention. The schematic sectional view of the use state of the discharge tray 2 which concerns on one Embodiment of this invention.

FIG. 1 is a schematic view of an image reading device A according to an embodiment of the present invention.

<Device configuration>
The image reading device A is a device that transports one or a plurality of transport media S loaded on the mounting table 1 one by one into the device by a route RT, reads the image, and discharges the image to the discharge tray 2. 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 also includes a booklet such as a passport. When targeting a booklet, a holder can be used. By accommodating the booklet in the spread state in the 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. .. 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 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). 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 that connects the drive unit 3 and the feed roller 11 is, for example, in the present embodiment, in a state in which the drive force is transmitted in the normal state, and shuts off the drive force in the case of the reverse feed of the transport medium S. When the transmission of the driving force is cut off by the transmission unit 5, the feed roller 11 is in a state where it can freely rotate. 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 arranged to face the feed roller 11 is a roller for separating the transport media S one by one, and is in pressure contact with the feed roller 11 at a constant pressure. In order to secure this pressure contact state, the separation roller 12 is provided so as to be swingable and urged by the feed roller 11. 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 (in the direction of the broken arrow arrow) that accompanies the feed roller 11 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, two or more transport media S are dammed so as not to be transported downstream, leaving one. ..

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, when the separation mechanism is provided, instead of the configuration like 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 the same separation work. You may.

<Transport structure>
The second transport unit 20 as a transport mechanism on the downstream side of the first transport unit 10 in the transport direction includes a drive roller 21 and a driven roller 22 driven by the drive roller 21, and has been transported from the first transport unit 10. The transport medium S is transported to the downstream side thereof. A driving force is transmitted to the driving roller 21 from a driving unit 4 such as a motor, and is rotationally driven in the direction of the 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. The driven roller 22 may be urged with respect to the drive roller 21 by an urging unit (not shown) such as a spring.

The third transport unit 30 located downstream of the second transport unit 20 in the transport direction includes a drive roller 31 and a driven roller 32 driven by the drive roller 31, and has been transported from the second transport unit 20. The transport medium S is transported 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 is rotationally driven in the direction of the arrow in the drawing. The driven roller 32 comes into pressure contact with the drive roller 31 at a constant pressure and is brought 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 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. Further, it is composed of a first discharge tray 2a on the first hinge 101 side and a second discharge tray 2b connected to the tip side thereof, and the second discharge tray 2b is rotatable with respect to the first discharge tray 2a. It is supported by.

<Image reading structure, control>
Here, in the image reading device A of the present embodiment, since the image is read by the image reading unit 70 arranged between the second transport unit 20 and the third transport unit 30, the second transport unit 20 and the second transport unit 20 3 The transport unit 30 transports the transport medium S at a constant speed. By always setting the transport speed to be equal to or higher than the transport speed of the first transport unit 10, it is possible to reliably avoid a situation in which the succeeding transport medium S catches up with the preceding transport medium S. For example, 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. did.

Even when 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 are the same conditions, the drive unit 3 is controlled. It is also possible to form a minimum distance between the preceding transport medium S and the succeeding transport medium S by intermittently shifting the feed start timing of the succeeding transport medium S.

<Double feed detection>
When the double feed detection sensor 40 arranged between the first transport unit 10 and the second transport unit 20 has the transport media S such as paper in close contact with each other due to static electricity or the like and has passed through the first transport unit 10 ( That is, it is an example of a detection sensor (sensor that detects the behavior and state of the sheet) for detecting this in the case of a double feed state in which the sheets are carried in an overlapping manner. Various types of double feed detection sensors 40 can be used, but in the case of the present embodiment, the ultrasonic sensor is provided with an ultrasonic wave transmitting unit 41 and its receiving unit 42, and is a transport medium such as paper. The double feed is detected on the principle that the amount of attenuation of the ultrasonic waves passing through the transport medium S is different depending on whether the S is double-fed and one by one.

<Resist sensor>
The medium detection sensor 50 arranged on the downstream side in the transport direction from the double feed detection sensor 40 is on the upstream side of the second transport unit 20 and on the upstream side arranged on the downstream side of the first transport unit 10. This is an example as a detection sensor (sensor for detecting the behavior and state of the sheet), and the position of the transport medium S transported by the first transport unit 10, specifically, the position of the transport medium S at the detection position of the medium detection sensor 50. Detects whether the end has reached or passed. 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, when the tip of the transport medium S is detected by the medium detection sensor 50, the medium is described above so that the transport medium S reaches a position where double feed can be detected by the double feed detection sensor 40. The detection sensor 50 is provided on the downstream side in the vicinity of the double feed detection 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 sensor protruding from the path RT may be used. It may be a sensor.

A medium detection sensor 60 different from the medium detection sensor 50 is arranged on the upstream side of the image reading unit 70. This 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. Various media detection sensors 60 can be used, but in the case of the present embodiment, the medium detection sensor 60 is an optical sensor similar to the medium detection sensor 50, and includes a light emitting unit 61 and a light receiving unit 62, and of the transport medium S. The transport medium S is detected on the principle that the light receiving intensity (light receiving amount) changes depending on the arrival or passage. 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, one image reading unit 70 is arranged on each side of the path RT, and the front and back surfaces of the transport medium S are read. 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 8 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 85. 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 an operator.

The communication unit 84 is an 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 a wireless communication interface, and may be provided with both a wired communication interface and a wireless communication interface.

The interface unit 85 is an I / O interface that inputs / outputs data to / from the actuator 86 and the sensor 87. The actuator 86 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 transport unit 10 to the third transport unit 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.

<Control during double feed>
During the transportation, 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. If 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 units 70 and 70 at a timing based on the detection result of the medium detection sensor 60, and reads the scanned image. Primary storage and sequential transmission to external personal computers. 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.

<Paper ejection structure>
FIG. 3 is a front view of the discharge tray 2 of the image reading device A according to the embodiment of the present invention in an unfolded state.

A display screen 93 is provided on the display panel 90 at the upper part of the front surface, and operation keys 122 are provided at adjacent positions.

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 of the present invention in a state where the discharge tray 2 is housed, and FIG. 7 is a discharge tray 2 and an upper unit of the image reading device A according to the embodiment of the present invention. It is a schematic cross-sectional view of the state in which 103 is stored.

The discharge tray 2 is pivotally supported via a first hinge 101 provided below the image reader A so as to be rotatable with respect to the image reader A, and the first discharge tray 2a and the second discharge tray 2 are supported. The discharge tray 2b is configured to cover the front surface of the main body.

The first discharge tray 2a is rotatably attached to the main body 100 of the image reading device A with the first hinge 101 as a fulcrum. The first discharge tray 2a is formed to have the same size as the combined area of the lower panel 91 and the discharge opening 92, and rotates with the first hinge 101 as a fulcrum in the stored state of the discharge tray 2 as shown in FIG. It is folded so as to cover the lower panel 91 and the discharge opening 92.

The second discharge tray 2b is formed to have the same size as the display panel 90, and in the stored state of the discharge tray 2 as shown in FIGS. 4 and 7, the second hinge 102 provided at the tip of the first discharge tray 2a is provided. It rotates as a fulcrum and is folded so as to overlap the display panel 90.

With such a configuration, the discharge tray 2 functions as an exterior cover when stored, and the second discharge tray 2a functions as a protective cover for protecting the display panel 90. Further, when the discharge tray 2 is stored, the outer shape of the discharge tray 2 and the outer shape of the main body 100 are aligned, and the display screen 93 and the discharge opening 92 are hidden, so that the entire device has a neat appearance in which flat surfaces are connected. As a result, it is possible to easily incorporate a design such as devising a color or a pattern into these flat surfaces.

Further, by opening and closing the discharge tray 2, the operation unit touched by the user such as the operation key 122 and the touch panel attached to the display screen 93, the display screen 93 as the display unit that the user sees when using the device, and the discharge opening 92 are exposed / stored. , It can be done with one touch, and it is easy to prepare and store the device. In this embodiment, the operation key 122 is provided as a push-type power button on the main body of the device. However, in order to further improve the convenience of the user, the opening / closing operation of the discharge tray 2 is detected to turn on / off the power of the main body of the device. It may be configured to switch.

The discharge tray 2 of this embodiment is provided with a mechanism for reliably storing the discharge tray 2 without floating from the main body 100 when the discharge tray 2 is stored. The details will be described here.

11a and 11b are side views showing a stored state of the discharge tray 2.

As described above, the discharge tray 2 is composed of two sheets, a first discharge tray 2a and a second discharge tray 2b, and is configured to be bent around the second hinge 102. Here, the bending angle β formed between the transport surfaces of the first discharge tray 2a and the second discharge tray 2b changes from βmin to βmax. When the discharge tray 2 is used as a discharge tray on which the transport medium S is placed, the bending angle β is the maximum βmax. Further, in the state where the discharge tray 2 is stored, the bending angle β follows the main body 100 and becomes equal to the main body angle α. If the bending angle β is larger than the main body angle α, the discharge tray floats from the main body during storage. Therefore, the minimum bending angle βmin is set smaller than the main body angle α in consideration of variations in dimensional tolerances.

In the case of the image reading device of this embodiment, when the discharge tray 2 is stored, the center of gravity of the second discharge tray 2b is on the back side of the device with respect to the second hinge 102, and the discharge tray 2 is stored by its own weight of the second discharge tray 2b. At that time, the force is applied in the direction in which the bending angle β becomes smaller. Further, the center of gravity of the entire discharge tray 2 at the time of storage is in front of the device with respect to the first hinge 101. Therefore, in order to store the discharge tray 2 without floating from the main body 100, a force is applied in the direction of closing the entire discharge tray 2 until the bending angle β of the discharge tray 2 becomes equal to the main body angle α, and the second discharge tray 2a is moved. Need to lift.

12a and 12b are schematic cross-sectional views of the discharge tray.

In this embodiment, the first torsion spring 142 is arranged at the rotation center of the first hinge 101 to generate a force for pulling the entire discharge tray 2 into the stored state, and the second torsion spring 143 is arranged at the rotation center of the second hinge 102. Due to the weight of the second discharge tray 2a, the force acting in the direction in which the bending angle β becomes smaller is reduced.

The first discharge tray 2a is provided with an abutting surface 2a1 that abuts against the protrusion 130 shown in FIG. 11B when the discharging tray 2 is opened, and an abutting surface 2a2 that abuts against the lower panel 91 when the discharging tray 2 is stored. The rotation range is limited.

The first torsion spring 142 is fixed to the first output tray 2a via a first shaft 144 passing through the center thereof. The arm 142a, which is one end of the first torsion spring 142, presses the urging portion 2a3 provided on the first paper ejection tray 2a. The arm 142b provided on the opposite side of the arm 142a of the first torsion spring has a structure protruding from the discharge tray 2 and presses an urging portion (not shown) provided on the protruding portion 130. As a result, the discharge tray 2 is always urged to the side where it is stored. The first torsion spring 142 generates a pulling force for surely pulling the discharge tray 2 into the main body 100 when the discharge tray 2 is stored. Further, when opening the discharge tray 2, the momentum when opening the discharge tray 2 is reduced. Since the amount of deflection of the first torsion spring 142 differs between when the discharge tray 2 is stored and when the discharge tray 2 is opened, it is possible to select a spring having a pressing pressure suitable for both by adjusting the spring constant. The pressing force of the first torsion spring 142 is set so that the discharge tray 2 can be reliably pulled in when the discharge tray 2 is stored, and the discharge tray 2 is not lifted when the discharge tray 2 is opened. .. The rotational torque of the first torsion spring 142 when the discharge tray 2 is opened may be about 70 to 90% of the rotational moment generated around the first hinge 101 due to the weight of the discharge tray 2 when the discharge tray 2 is opened. desirable.

The second discharge tray 2b is provided with an abutting surface 2b1 that abuts on the display panel 90 when stored. Further, when the bending angle β of the discharge tray 2 is βmin, the abutting surface 2a4 of the first discharge tray 2a and the abutting surface 2b4 of the second discharge tray 2b abut, and when the discharge tray 2 is opened, the first discharge tray 2 The abutting surface 2a5 of the 2a and the abutting surface 2b5 of the second discharge tray 2b abut each other, limiting the rotatable range of the bending angle β to βmin to βmax.

The second torsion spring 143 is fixed to the first output tray 2a via a second shaft 145 passing through the center thereof. The arm 143a, which is one end of the second torsion spring 143, presses the urging portion 2a6 provided on the first paper ejection tray 2a. The arm 143b provided on the opposite side of the arm 143a of the second torsion spring 143 has a configuration in which it protrudes from the first discharge tray 2a, and presses the urging portion 2b6 provided on the second discharge tray 2b to discharge. The tray 2 is urged in a direction in which the bending angle β increases. This reduces the load when the discharge tray 2 is pulled in the storage direction, and further prevents the second discharge tray 2b from falling vigorously on the display panel 90 when the discharge tray 2 is closed. Further, the operating force when opening the discharge tray 2 is reduced, and since the discharge tray 2 is urged in the direction of increasing the bending angle β, the entire discharge tray 2 is integrated in a state where it is extended to some extent or completely. It is easier to move and the operability is improved. Since the amount of deflection of the second torsion spring 143 differs when the discharge tray 2 is stored and when the discharge tray 2 is opened, it is possible to select a spring having a pressing pressure suitable for both by adjusting the spring constant. The pressing force of the second torsion spring 143 is set so that the second discharge tray 2b does not float when the discharge tray 2 is stored.

The rotational moment of the discharge tray 2b in the storage direction due to its own weight in this embodiment becomes smaller as the second discharge tray 2b approaches the upright state, and becomes 0 in the upright state.

If the rotational moment of the second torsion spring 143 when the discharge tray 2 is stored is set to be smaller than the rotational moment due to the own weight of the second discharge tray 2b, there is a portion where the two are balanced, and the second equilibrium portion is used. The discharge tray 2b can be held in a floating state from the display panel 90. However, if the second discharge tray 2b is rotating in the storage direction at a certain speed, the speed is attenuated and the second discharge tray 2b passes through the equilibrium portion before becoming 0. Therefore, in such a situation, the user intentionally performs the second discharge. It does not occur unless the tray 2b is stopped at the equilibrium point.

In this embodiment, in order to make it more difficult for this phenomenon to occur, the equilibrium portion is set to be close to the stored state of the second discharge tray 2b. As a result, when the user releases the second discharge tray 2b in the middle of storing the discharge tray 2, the rotation speed of the second discharge tray 2b increases when the second discharge tray 2b approaches the balanced state. It is more difficult to cause a situation where the vehicle stops at a balanced point. It is desirable that the difference in angle between the stored state and the equilibrium portion of the second discharge tray 2b is less than 5 °.

Further, the rotational moment of the second torsion spring 143 when the bending angle β of the discharge tray 2 is the maximum βmax does not cause the discharge tray 2 to bend due to its own weight when the tip of the discharge tray 2 in the deployed state is lifted from below. By setting the above, the discharge tray 2 moves integrally during operation, and the operation feeling can be improved.

The first torsion spring 142 provided in the discharge tray 2 in this embodiment may be one or a plurality of springs arranged coaxially, and similarly, the second torsion spring 143 may be one. There may be a plurality of springs arranged coaxially. Further, the first torsion spring 142 and the second torsion spring 143 may be leaf springs, wire springs, or coil springs instead of torsion springs.

In the present embodiment, one is arranged on each side of the discharge tray 2 so as to sandwich the transport path RT.

With the above configuration, the operability and storability of the discharge tray 2 are improved with a simple configuration and without using a strong spring or damper.

Furthermore, if you want to reduce the impact when opening and closing the discharge tray 2, you can improve the operability by adding an oil damper, torque limiter, etc. to either or both of the first hinge 101 and the second hinge 102. Is.

FIG. 5 is a top view of the discharge tray 2 of the image reading device A according to the embodiment of the present invention in an unfolded state.

The transport medium S transported by the third transport unit 30 is discharged to the first discharge tray 2a through the discharge opening 92, reaches the second discharge tray 2b depending on the size of the transport medium S, and is guided.

Here, the second discharge tray 2b has a configuration in which the downstream side is lifted so that the transport medium S discharged one after another is not pushed out from the tray. On the other hand, since the transport path RT of the transport medium S in the main body of the apparatus is arranged so as to be lower on the downstream side, the transport medium S is discharged while being bent. If the traveling direction of the transport medium S changes suddenly, the transport medium S may be caught by a bending point, friction between the transport media S, or the like and curl up at the time of paper ejection. The first discharge tray 2a has an angle and a shape that gently connects the transport paths of the transport medium S so that the tip of the transport medium S to be discharged is steadily received and smoothly delivered to the second discharge tray 2b.

The discharge position adjusting member 120 is rotatably provided on the first discharge tray 2a, and when a transport medium S having a smaller size than the first discharge tray 2a such as a business card is discharged, the first discharge tray 2a is provided. By rotating the transport medium S in the upright state, the position where the transport medium S stops can be adjusted, and the discharged transport medium S can be made less likely to be scattered.

Further, the second discharge tray 2b is provided with a translucent portion 121, which is arranged at a position overlapping with the operation key 122 provided on the display panel. The operation key 122 is a power button that turns on and off the power of the main body, and is configured so that the button lights up when the power is on. The translucent unit 121 arranged at a position overlapping the operation key 122 can confirm whether the operation key 122 is in the lit state or the extinguished state even in the stored state of the discharge tray 2, and the image reading device A can be confirmed. You can check the power status of.

<Display panel configuration>
A display screen 93 is arranged on the display panel 90 provided at a position overlapping the second discharge tray 2b in the stored state of the second discharge tray 2b.

The display screen 93 is arranged so that the feed tray 110, the transport path width W, and the center line X are at the same position. It should be noted that the maximum transport path width Wmax of the image reading device A according to the embodiment of the present invention is configured so that A4 letter size can be fed, and the width is Wmax = 216 mm. The width of the display screen 93 is 224 mm, which exceeds Wmax.

As a result, for example, the read image can be displayed on the display screen 93 in the actual size, and the finished state can be easily confirmed, so that the convenience of the user can be improved.

<Details of delivery structure>
FIG. 6 is a top view of the image reading device A according to the embodiment of the present invention in a state where the discharge tray 2 is housed.

The loading platform 1 is provided with a regulating member 111 slidably attached in a direction orthogonal to the transport direction according to the size of the transport medium S to be arranged.

<Details of upper unit>
FIG. 7 is a schematic cross-sectional view of the image reading device A according to the embodiment of the present invention.

The main body 100 is composed of 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.

Since the display panel 90 includes a display screen 93 having a width exceeding the maximum transport path width Wmax and a support frame sheet metal for the display screen 93, the upper unit 103 has a center of gravity in the expanded state of the upper unit 103 as shown in FIG. Will deviate significantly forward in the transport direction from the state in which the upper unit 103 as shown in FIG. 1 is housed.

Therefore, if there is momentum when the upper unit is deployed, the image reading device A may tip over. However, in the image reading device A according to the present embodiment, the upper unit 103 has the protruding portion 130. It is possible to prevent the image reading device A from tipping over even if the center of gravity shifts due to the expansion of the image reader A. The protruding amount of the protruding portion 130 is a protruding amount that fits below the discharge tray 2 in the stored state of the upper unit 103 and the discharge tray 2 as shown in FIG. 7, and is a protrusion amount of the upper unit 103 as shown in FIG. In the unfolded state, the amount of protrusion is such that the upper unit 103 is located forward in the transport direction from the center of gravity. 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.

<Adjustment of discharge tray angle>
Further, on the upper surface of the protruding portion 130, a tray support portion 131 that comes into contact with the lower surface of the discharge tray 2 when it is unfolded is rotatably provided.

As shown in FIG. 9, the discharge tray 2 is supported by the protrusion 130 in its unfolded state so as to be able to receive the discharged transport medium S. As shown in FIG. 10, when the tray support portion 131 is rotated so as to project upward from the upper surface of the protruding portion 130, it comes into contact with the lower surface side of the discharge tray 2 to support the discharge tray 2, and the protruding portion 130. The angle of the discharge tray 2 can be adjusted from the state of FIG. 9 supported by.

For example, in the state of FIG. 10, the discharge tray 2 is lifted upward in the vertical direction as compared with the state of FIG. 9, and the position where the tip of the transport medium S lands on the upper surface of the discharge tray 2 can be changed. .. As a result, in the state of FIG. 9, when the tip of the discharged transport medium S comes into contact with the rear end of the already discharged transport medium S and is pushed out, as shown in FIG. 10, the discharge tray 2 By changing the angle, in addition to the action of moving the rear end of the already discharged transport medium S toward the lower unit 104 side, the tip of the subsequent transport medium S is surely placed on the upper surface of the already discharged transport medium S. Can be landed. With such a configuration, the alignment of the discharged transport medium S on the discharge tray 2 can be remarkably improved.

The tray support portion 131 may be configured to support the discharge tray 2 even in the middle of the rotation range, and the angle of the discharge tray 2 may be adjustable in a plurality of steps. In that case, each transport medium S can receive the transport medium S at an angle having the highest alignment on the discharge tray 2, and usability can be improved.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, the discharge tray described in this embodiment may be a paper feed tray on which a document to be fed is placed. Further, the device A in this embodiment may be a sheet transfer device such as an image forming device instead of an image reading device, and the ejection tray described in this embodiment can be used as a display panel in the device without transporting documents. It may be a cover that also serves as a keyboard or a cover. Further, in the present embodiment, the upper surface portion and the front surface portion of the device are separately separated surfaces, but these may be smoothly connected surfaces or the same curved surface.

Further, by providing the discharge tray according to the present invention with a magnet or an engaging portion that can be engaged with the device main body, it is possible to further reduce the possibility that the discharge tray as an example of the cover floats when being stored in the device main body.

A Image reader S Transport medium 1 Mounting stand 2 Discharge tray 2a 1st discharge tray 2b 2nd discharge tray 3, 4 Drive unit 5 Transmission unit 10 1st transport unit 11 Feed roller 12 Separation roller 20 2nd transport unit 21 Drive roller 22 Driven roller 30 Third transfer unit 31 Driven roller 32 Driven roller 40 Double feed detection sensor 50, 60 Medium detection sensor 70 Image reading unit 71 Contact image sensor (CIS)
72 Color reference plate 80 Control unit 84 Communication unit 90 Display panel 91 Lower panel 93 Display screen 100 Main unit 101 First hinge 102 Second hinge 103 Upper unit 104 Lower unit 105 Main unit hinge 111 Regulator member 120 Discharge position adjustment member 121 Translucent unit 122 Operation key 130 Projection 131 Tray support 142 1st torsion spring 143 2nd torsion spring 144 1st axis 145 2nd axis α Body angle β Discharge tray bending angle

Claims (4)

A cover having an upper surface portion and a front surface portion adjacent to the upper surface portion, and arranged in a device in which the upper surface portion is inclined toward the front surface portion.
The cover is composed of a first member and a second member, and the first member is rotatably supported by a first rotating hinge provided in front of and below the device, and is rotatably supported by the second member. Is rotatably supported by the first member by a second rotating hinge.
The cover can hold either a stored state or a used state with respect to the device, and in the stored state, the first member overlaps the front surface portion and the second member overlaps the upper surface portion. In the used state, the overlap between the first member and the front surface portion and the overlap between the second member and the upper surface portion are released.
A first torque generating member for generating torque on the first rotating hinge and a second torque generating member for generating torque on the second rotating hinge are provided.
The first torque generating member generates torque in the direction of attracting the first member to the retracted state.
The second torque generating member is a cover characterized by generating torque in a direction in which the second member is opened in a used state . The cover according to claim 1 , wherein the first torque generating member is a torsion spring. The cover according to claim 1 or 2 , wherein the second torque generating member is a torsion spring. The device comprises the cover according to any one of claims 1 to 3.
The device is a device that feeds and conveys a sheet loaded on a platen and discharges it to a paper discharge loading platform, and the cover constitutes the document table or the paper ejection loading platform. Sheet transfer device.