WO2020175429A1

WO2020175429A1 - Heating cooker

Info

Publication number: WO2020175429A1
Application number: PCT/JP2020/007342
Authority: WO
Inventors: 中村　圭吾
Original assignee: シャープ株式会社
Priority date: 2019-02-28
Filing date: 2020-02-25
Publication date: 2020-09-03
Also published as: JPWO2020175429A1; TW202033915A

Abstract

The bar code on an object to be heated is appropriately and quickly made readable. This heating cooker comprises a heating chamber and a reading device that reads an information code indicating at least the heating conditions for an object to be heated, the heating cooker heating food disposed inside the heating chamber, wherein: the reading device is installed at an installation position that is outside of the heating chamber and is positioned above a front surface opening section of the heating chamber; and the reading device has a reading region for reading the information code, the reading region being below the installation position, and being such that the reading center is in a region offset from the front surface opening section toward the outside of the heating chamber.

Description

\¥0 2020/175429 1 卩 (: 17 2020 /007342 Clarification

Title of invention: Heating cooker

Technical field

The present invention relates to a heating cooker that heats food placed inside a heating cabinet.

The present application claims priority on the basis of Japanese Patent Application No. 20 1 9-0 3 6 1 2 4 filed in Japan on February 28, 2019, the content of which is incorporated herein.

Background technology

[0002] Conventionally, for example, in convenience stores, foods such as bento boxes that have been sold are heated by a heating cooker such as an electronic range and handed to customers.

[0003] Suitable heating temperature and heating time for heating food differ depending on the type of food. Therefore, in the microwave oven disclosed in Patent Document 1, a bar code indicating the type of food, which is written on the food container, is read by a reading device and the heating information (heating temperature and heating time) according to the type of food is used. I try to heat the food.

Prior art documents

Patent literature

[0004] Patent Document 1: Utility Model Registration No. 3 0 7 6 6 4 9

Summary of the invention

Problems to be Solved by the Invention

By the way, in the microwave oven of Patent Document 1, since the bar code reading device is provided on the top surface of the heating chamber, a bar code reading region is formed on the bottom side of the heating chamber. In such a case, normally, the entire bottom surface of the heating cabinet is not set as the barcode reading area, and a part of the bottom surface of the heating cabinet becomes the barcode reading area. It's hard to tell if I should do it, and it takes time to read the bar code. For this reason, there is a problem in that the convenience of heating and cooking can not be obtained quickly by using the barcode. 〇 2020/175429 2 卩 (: 170? 2020 /007342

[0006] Moreover, since the barcode reading area is fixed, depending on the position of the barcode on the object to be heated, the barcode does not enter the barcode reading area, and the barcode cannot be read properly. Bar code reading error occurs.

[0007] One aspect of the present invention is intended to realize a highly convenient cooking device that can always read information codes (parcodes) on an object to be heated appropriately and quickly.

Means for solving the problem

[0008] In order to solve the above problems, a heating cooker according to an aspect of the present invention includes: a heating cabinet; and a reading device that reads an information code indicating at least a heating condition of an object to be heated. In a cooking device for heating food arranged inside a refrigerator, the reading device is installed outside the heating cabinet and above the front opening of the heating cabinet as an installation position. It is characterized in that it has a reading area for reading the information code in a region below the front opening and outside the heating chamber below the reading center.

Effect of the invention

[0009] According to one aspect of the present invention, it is possible to realize a highly convenient heating cooker that can appropriately and quickly read an information code on an object to be heated.

Brief description of the drawings

[0010] [Fig. 1] Fig. 1 is a perspective view of a state in which a front door of a heating cooker according to an embodiment of the present invention is closed, as viewed from diagonally above the front.

FIG. 2 is a front view of the heating cooker shown in FIG. 1 with the front door open.

[Fig. 3] Fig. 3 is a perspective view of the heating cooker shown in Fig. 1 with the front door opened, as viewed from diagonally below right.

FIG. 4 is a schematic perspective view of a control board included in the heating cooker shown in FIG. 1.

[Fig. 5] Fig. 5 is a vertical cross-sectional view of a control frame showing the installation state of a camera included in the heating cooker shown in Fig. 1.

FIG. 6 is an explanatory diagram showing a reading area of the camera shown in FIG. 〇 2020/175429 3 卩(: 170? 2020/007342

[Fig. 7] (3) is an explanatory diagram showing an example of an information code consisting of a two-dimensional code read by the camera shown in Fig. 5, and (匕) is a one-dimensional bar read by the camera shown in Fig. 5. It is explanatory drawing which shows the example of the information code which consists of a code.

(3) of [Fig. 8] is an explanatory diagram showing an example of the guide display on the operation panel for reading the information code by the camera shown in Fig. 5, and (匕) is the information by the camera shown in Fig. 5. FIG. 7 is an explanatory diagram showing another example of guidance display on the operation panel for reading a code.

[Fig. 9] Fig. 9 is a block diagram showing a configuration of a control device included in the heating cooker shown in Fig. 1.

[FIG. 10] A vertical cross-sectional view of a control frame showing an installation state of a camera included in the heating cooker according to the second embodiment of the present invention.

[Fig. 11] Fig. 11 is a vertical cross-sectional view of a control frame showing an installed state of a camera included in the heating cooker according to the third embodiment of the present invention.

FIG. 12 is a perspective view of the heating cooker according to the modified example of the present invention with the front door opened, as viewed from the lower right.

MODE FOR CARRYING OUT THE INVENTION

[001 1] [Embodiment 1]

Hereinafter, an embodiment of the present invention will be described in detail.

[0012] (Overview of cooking device 1)

FIG. 1 is a perspective view of a state where the front door 12 of the heating cooker 1 according to the present embodiment is closed, as viewed from diagonally above the front. FIG. 2 is a perspective view of the state where the front door 12 of the heating cooker 1 shown in FIG. 1 is opened as viewed from diagonally below the front. FIG. 3 is a perspective view of the state where the front door 12 of the heating cooker 1 shown in FIG. FIG. 4 is a perspective view of the control board 17 provided in the heating cooker 1 shown in FIG.

[0013] As shown in FIGS. 1 to 3, the heating cooker is, for example, a microwave oven, which has an operation panel 11 on the upper part of the front surface and a front door 12 under the operation panel 11. doing. The front door 1 2 is a door for opening and closing the heating cabinet 1 3 provided behind the front door 1 2. 〇 2020/175429 4 卩 (: 170? 2020 /007342

And covers the front opening 13 of the heating cabinet 13 in the closed state. In the present embodiment, the front door 12 is a laterally opening type that rotates about the left end toward it, and has a handle 14 near the right end.

[0014] The operation panel 11 is provided on the front surface of the control frame (board accommodating portion) 15, and in the front-back direction of the heating cooker 1, the front position of the operation panel 11 is the front door 12. It almost coincides with the front position.

[0015] Inside the control frame 15 is provided a control board 17 (Fig. 4) that controls the display section of the operation panel 11 and receives user operations such as input keys.

As shown in FIG. 4, the control board 17 is provided with a liquid crystal panel 19 which constitutes a display portion of the operation panel 11 and a camera (reading device) 16 for reading a barcode. There is. The camera 16 is mounted such that the optical axis ◯ of a lens (not shown) included in the camera 16 is parallel to the control board 17. The operation surface of the operation panel 11 is parallel to the mounting surface of the control board 17 on which the camera 16 is attached.

[0017] (Camera 16)

FIG. 5 is a vertical sectional view of the control frame 15 showing the installation state of the camera 16. FIG. 6 is an explanatory diagram showing the reading area 100 of the camera 16.

[0018] The control frame 15 is provided so as to project toward the front of the heating cooker 1. The camera 16 is provided in the lower part inside the control frame 15.

[0019] The camera 16 is, for example, a parcode reader, and is adapted to read an information code (for example, a parcode) given to the food or the container of the food heated by the cooking device 1.

[0020] The camera 16 uses the lower area of the camera 16 as the reading area 100, and the control frame 15 has a transparent reading window 1 8 at the lower wall portion facing the camera 16. have.

[0021] The detailed installation position of the camera 16 is as follows. Ie camera 1 〇 2020/175429 5 卩 (: 170? 2020 /007342

No. 6 is located outside the heating cabinet 13 and above the front opening 13 cave of the heating cabinet 13 (position on the side of the ceiling wall 1 3 ₃ ) as the installation position. Further, the reading area 100 of the camera 16 is below the installation position of the camera 16 and the reading center is shifted from the front opening 13 of the heating cabinet 13 to the outside of the heating cabinet 13. Is formed.

[0022] Specifically, as shown in Fig. 5, the control board 17 is arranged so that the optical axis 08 of the camera 16 passes through the center 1 0 0 3 of the reading area 100. Tilt within 5. As a result, the reading area 100 of the camera 16 is located below the installation position of the camera 16 and the reading center is outside the heating cabinet 13 from the front opening 13 of the heating cabinet 1 3. Can be shifted.

According to the above configuration, the area of the reading area 100 outside the heating chamber 13 by the camera 16 can be increased. As a result, the ratio of the readable area in the reading area 100 can be increased, so that the information code of the object to be heated before being put in the heating chamber 13 can be reliably read.

[0024] Moreover, since the ratio of the reading light irradiated to the bottom of the heating cabinet 13 becomes small, the reflected light of the reading light from the bottom of the heating cabinet 13 can be prevented from entering the camera 16 as a result. , The effect of improving the accuracy of reading the information code can be obtained.

[0025] As shown in Figs. 2 and 3, the camera 16 is provided at the central portion in the width direction (left-right direction) of the front opening portion 1313 of the heating cabinet 13.

The reading area 100 of the camera 16 is shown by, for example, red light so that the user can visually recognize the reading area 100. This red light is emitted by the reading area illumination unit 21 (Fig. 9) provided in the position close to the camera 16 of the control frame 15. As the reading area illuminating unit 21, for example, red! The light indicating the reading area 100 is not limited to red light, and may be other light visible to the user, such as laser light. Also, the number of red !__ 0 may be one or more.

[0027] (Information code) 〇 2020/1754 29 6 卩 (: 170? 2020 /007342

(3) in Fig. 7 is an explanatory diagram showing an example of an information code consisting of a two-dimensional code (○[¾ code (registered trademark) ), and (Fig. ₇ ) is an example of an information code consisting of a one-dimensional bar code. FIG. (3) in Fig. 8 is an explanatory diagram showing an example of the guide display on the operation panel 11 for reading the information code by the camera 16; (Fig. 8) is the information code by the camera 16; FIG. 11 is an explanatory diagram showing another guide display example on the operation panel 11 for reading.

[0028] The information code is information indicating the type of food, and is attached to the food or the container of the food by, for example, printing or sticking. The information code is information indicating the type of food, for example, that the food is a box lunch (or even a box lunch type) or that it is a rice ball (or even a rice ball type).

The information code may be a two-dimensional code as shown in (3) of FIG. 7 or a one-dimensional barcode as shown in (10) of FIG. .. The information code is not limited to a bar code or the like as long as it can indicate the type of food.

[0030] A guidance display 20 for the user is provided on the operation panel 11 so that the information code can be smoothly read by the camera 16. For example, in the example of (3) in Fig. 8, the guidance display 20 "Open the door and hold the information code over the red light" is displayed. In addition, in the example of (匕) in Fig. 8, the guidance display 20 "Open the door and illuminate the information code with red light" is displayed. It should be noted that these guidance displays 20 are merely examples and are not particularly limited to these.

[0031] Note that the position where the guidance display 20 is displayed is not limited to the position substantially in the center of the operation panel 11 as shown in (3) and (b) of Fig. 8, and may be any position on the operation panel 11. It may be at any position, or at a position other than the operation panel 11 (front of the cooking device 1) as long as it can guide the user to read the information code by the camera 16. The preferred position for user convenience is the position on the operation panel 1 1 that is always visible when operating the cooker 1. 〇 2020/175429 7 卩(: 170? 2020/007342

is there. Further, it is more preferable if it is in the vicinity of (above) the reading window 18.

[0032] (Information display)

The guide display 20 is realized by printing on the operation panel 11 the contents that guide the user how to operate. For example, attach a sticker on which the guidance display 20 is printed to the operation panel 1 1. However, the method of realizing the guide display 20 is not limited to printing on the operation panel 11, and a liquid crystal panel is provided on the operation panel 11 and the guide display 20 is displayed on the liquid crystal panel. Maybe In this case, the lighting of the backlight of the LCD panel is controlled in conjunction with the opening and closing of the front door 12. For example, when the front door open/close detection unit 25 (Fig. 9) detects that the front door 12 is open, the backlight of the liquid crystal panel displaying the guide display 20 is interlocked with the operation of opening the front door 12. Lights up. This makes it easier for the user to visually recognize the guide display 20. Alternatively, the guidance display 20 may be displayed and the content of the guidance display 20 may be notified by voice. In this case, even a user who has difficulty seeing the characters displayed on the guide display 20 can confirm it by voice, so that the operation can be performed smoothly.

[0033] (Control device)

FIG. 9 is a block diagram showing a configuration of a control device included in the heating cooker 1. The control device includes a control unit 22 that controls the operation of the heating cooker 1. The control unit 22 comprises, for example, a micro computer, and

and

Has eight 1\/1.

As shown in FIG. 9, the control unit 2 2 includes an operation panel 11, a heating operation unit 23, a camera 16, a reading area illumination unit 21, a reading result notification unit 24, and front door open/close detection. Part 25 is connected. The front door open/close detection unit 25 includes, for example, a switch that is turned on when the front door 12 is closed, and detects whether the front door 12 is open or closed.

[0035] The heating operation unit 23 is an operation unit that heats the food placed in the heating chamber 13 and is, for example, a microwave output device or a heater. The read result notification section 24 〇 2020/1754 29 8 卩 (: 170? 2020 /007342

The user is notified of the success or failure of reading the information code by the camera 16 under the control of the control unit 22.

The control unit 22 can communicate with the server 3 1 using, for example, the internet line. The server 31 stores heating information according to the type of food. The control unit 2 2 obtains the heating information corresponding to the type of food obtained by the camera 16 reading the information code from the server 31 and performs the heating operation so that the food is heated according to the obtained heating information. Control part 23. The heating cooker 1 itself may have the heating information according to the type of food. In this case, the cooking device 1 does not need to communicate with the server 3 1.

Further, the control unit 22 controls the operation of the reading result notifying unit 24 so as to notify the user of the success or failure of reading the information code by the camera 16.

[0038] (Operation of heating cooker 1)

The operation of the heating cooker 1 having the above configuration will be described below. Here, the case where the lunch box with the information code attached to the upper surface of the container is heated by the heating cooker 1 will be described.

[0039] First, the user confirms the guidance display 20 on the operation panel 11 (for example, "Open the door and hold the information code over the red light"). Then, the user opens the front door 12 according to the guidance display 20. When the front door open/close detection unit 25 detects this open state of the front door 12, the control unit 22 operates the camera 16 and the reading area illumination unit 21.

[0040] Next, the user follows the guidance display 20 on the operation panel 11 so that the information code is entered in the reading area 100 of the camera 16 (so that the information code is illuminated by red light). , Move the bento.

By this operation, the camera 16 reads the information code given to the lunch box.

When the reading of the information code by the camera 16 is successful, the control unit 22 causes the reading result notifying unit 24 to notify the user of the reading result. In this case, the operation of the reading result notification unit 24 is, for example, the operation of making a continuous beep "Peak", the operation of making a voice "The reading of the information code was successful", or 〇 2020/175429 9 卩(: 170? 2020/007342

Are both of them.

[0042] When the user is informed of the success of reading the information code by the reading result notification unit 24, the user places the lunch box inside the heating chamber 13 and then closes the front door 12 and operates the operation panel 1 Press the start button of 1.

When the reading of the information code is successful, the control unit 22 communicates with the server 31 and acquires the heating information according to the type of food indicated by the information code from the server 31. After that, when the user closes the front door 12 and presses the start button of the operation panel 11, the control unit 22 heats the lunch box in the heating chamber 13 according to the acquired heating information.

On the other hand, when the reading of the information code by the camera 16 fails, the control unit 22 causes the reading result notifying unit 24 to notify the user of the reading result. In this case, the operation of the reading result notification unit 24 is, for example, an operation of making a beeping sound, a beeping sound, a sounding of "information code reading failed", or both of them.

[0045] When the user is informed of the failure of reading the information code by the reading result notifying unit 24, the user is allowed to enter the information code into the reading area 100 of the camera 16 (the red light is emitted in the information code. So that it hits), move the bento again. As a result, the operation when the information code is successfully read is as described above.

[0046] (Advantages of the cooker 1)

In the heating cooker 1, the camera 16 sets the reading position 1 0 0 below the installation position as the installation position outside the heating store 13 and above the front opening 13 13 of the heating store 13. It is provided to have.

Therefore, the information code can be read by the camera 16 during the series of operations in which the user places the heated food on the heating cabinet 13. As a result, the user does not need to perform an independent operation for reading the information code with the camera 16 and the reading operation of the information code becomes easy.

Moreover, since the reading area 100 is formed outside the front opening 13 of the heating cabinet 13, the influence of the reflected light from the bottom surface of the heating cabinet 13 is reduced. 〇 2020/175429 10 卩 (: 170? 2020 /007342

, The accuracy of reading the information code is improved.

[0049] Further, since the camera 16 is installed above the front opening 13 of the heating cabinet 13, the detection signal passage surface (the bottom surface of the reading window 18) is less likely to be contaminated. Moreover, it is less susceptible to the temperature inside the heating cabinet 13.

[0050] Further, a control frame 15 for accommodating the control board 17 of the operation panel 11 is provided above the front opening 13 of the heating cabinet 13 in a protruding shape. The camera 16 is provided so as to face downward from the lower surface of the control frame 15. As described above, the camera 16 is installed by using the control frame 15 that accommodates the control board 17 of the operation panel 11.

Further, the operation panel 11 is provided with a guidance display 20 for the user. As a result, the information code can be smoothly read by the camera 16. In other words, even a user who is unfamiliar with the operation of the heating cooker 1 can easily understand how to operate the heating cooker 1 just by looking at the guidance display 20.

[0052] In the first embodiment, the read area 1 0 0, reading center 1 0_Rei ₃ heating chamber

As a method of shifting from the front opening 1 3 13 of 1 3 to the outside of the heating cabinet 13 as shown in Fig. 5, tilt the control board 1 7 itself with the camera 1 6 mounted in the control frame 15 as shown in Fig. 5. Although the method has been described, the method is not limited to this, and another method may be used. The following Embodiments 2 and 3 will explain another method of shifting the reading area 100 from the front opening 13 of the heating chamber 13 to the outside of the heating chamber 13 so that the reading center 1003 is displaced. ..

[Embodiment 2]

Another embodiment of the present invention will be described below. For convenience of description, members having the same functions as the members described in the above embodiment will be designated by the same reference numerals, and the description thereof will not be repeated.

[0054] (Overview of heating cooker 2)

FIG. 10 is a vertical cross-sectional view of the control frame 15 showing the installation state of the camera 16 included in the heating cooker 2 according to the present embodiment. 〇 2020/175429 1 1 卩(: 170? 2020/007342

The heating cooker 2 has almost the same configuration as the heating cooker 1 of the first embodiment, and the installation state of the camera 16 is different.

In the heating cooker 1 of the first embodiment, the reading area 100 of the camera 16 is located below the installation position of the camera 16 and the reading center is the front opening of the heating cabinet 13. 1 In order to shift it from the bowl to the outside of the heating cabinet 13, the optical axis 08 of the lens (not shown) equipped with the camera 16 passes through the center 1 0 0 3 of the reading area 100. Although the control board 17 itself on which the camera 16 is attached is tilted, in the present embodiment, as shown in FIG. 10, the camera 16 itself is read by the optical axis 08 in the reading area 10 0. It is tilted on the control board 17 so that it passes through the center of 103. Specifically, by placing a spacer 200 such as a washer between the camera 16 and the control board 17, the camera 16 is tilted at a desired angle. The tilt of the camera 16 can be adjusted by the thickness of the spacer 200.

[0057] (Advantages of the cooker 2)

The heating cooker 2 has almost the same effect as that of the heating cooker 1 of the first embodiment. Further, since the camera 16 only needs to be tilted on the control board 17, the control board is provided in the control frame 15. Compared with the case of tilting 17, the position of the reading area 100 can be easily set.

[Embodiment 3]

[0059] (Overview of cooking device 3)

FIG. 11 is a vertical cross-sectional view of the control frame 15 showing the installation state of the camera 16 provided in the heating cooker 3 according to the present embodiment.

The heating cooker 3 has almost the same configuration as the heating cooker 1 of the first embodiment, but the installation state of the camera 16 is different. Specifically, the shape of the control frame 15 is different.

[0061] In the heating cooker 1 of the first embodiment, the reading area 100 of the camera 16 is 〇 2020/175429 12 卩(: 170? 2020/007342

A lens equipped with a camera 16 so that the reading center is below the installation position of the camera 16 and the reading center is shifted from the front opening 13 of the heating cabinet 13 to the outside of the heating cabinet 13 (Fig. Although the control board 17 itself on which the camera 16 is mounted is tilted so that the optical axis 08 of (not shown) passes through the center 10 03 of the reading area 100, in the present embodiment, As shown in Fig. 11, the control frame 15 is tilted so that the operation surface of the operation panel 11 faces upward.

[0062] (Advantages of Heating Cooker 3)

The heating cooker 3 has substantially the same effect as the heating cooker 1 of the first embodiment. Further, since the operation surface of the operation panel 11 faces upward, the user can easily confirm the operation surface. Further, since the control frame 15 itself is formed so as to face upward, the reading window 18 is easy for the user to see, and the reading area 100 is also easy to grasp. This improves the accuracy of reading the information code.

[0063] In the first to third embodiments, as shown in Fig. 2 and Fig. 3, the camera 16 is arranged at the center portion in the width direction (left-right direction) of the front opening 1313 of the heating cabinet 13. Although provided, the invention is not so limited.

[Modification]

FIG. 12 is a perspective view of the heating cooker 4, which is a modification of the first to third embodiments, with the front door 12 opened, as viewed from the lower right.

[0065] (Camera 16)

In the heating cooker 2, as shown in Fig. 12, the camera 16 has a front door 1 that opens sideways rather than the widthwise (left-right) central portion of the front opening 1 3 13 of the heating cabinet 13. It is provided on the side opposite to the center of rotation of 2. Other configurations of the heating cooker 4 and the operation of the heating cooker 4 are the same as those of the heating cookers 1 to 3 described above.

[0066] (Advantages of cooking device 4)

In the heating cooker 4, the camera 16 is located at a position closer to the side opposite to the center of rotation of the side-opening front door 1 2 than the center in the width direction of the front opening 1 3 of the heating cabinet 13. It is set up. Therefore, open the front doors 12 about half way, and 〇 2020/175429 13 卩(: 170? 2020/007342

Even if you put small food in the inside of the heating cabinet 13 from a position on the side opposite to the center of rotation of the front door 12 it is less likely that the camera 16 will fail to read the information code. Become. Other advantages of the heating cooker 4 are the same as those of the heating controller 1 described above.

The number of cameras 16 is not limited to one, and two cameras may be provided. In this case, the first camera 16 is provided at the above position, and the second camera 16 is located at the position corresponding to the rotation center side end of the front door 12 in the front opening 1 3 of the heating cabinet 13. It may be provided at a position between the first camera 16 and the first camera 16.

The present invention is not limited to each of the above-described embodiments, and various modifications can be made within the scope of the claims, and the technical means disclosed in each of the different embodiments can be combined appropriately. Such embodiments are also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

Claims

〇 2020/175429 14 卩(: 170? 2020/007342 Claims

[Claim 1] A heating cooker, comprising: a heating cabinet and a reading device for reading an information code indicating at least a heating condition of an object to be heated, for heating food arranged in the heating cabinet,

The reader is installed outside the heating cabinet and above the front opening of the heating cabinet as an installation position, below the installation position, and the reading center is from the front opening to the heating cabinet. A heating cooker characterized by having a reading area for reading the information code in a region offset to the outside.

2. The reading device is a camera mounted on a control board housed in a board housing part projecting outward from a front opening of the heating chamber. Heating cooker.

[Claim 3] The camera is attached to the control board such that an optical axis of a lens included in the camera is parallel to a board surface of the control board,

3. The heating cooker according to claim 2, wherein the control board is tilted in the board housing so that the optical axis passes through the center of the reading area.

4. The cooking apparatus according to claim 2, wherein the camera is tilted on the control board so that an optical axis of a lens included in the camera passes through the center of the reading area. vessel.

[Claim 5] The camera is attached to the control board such that an optical axis of a lens included in the camera is parallel to a board surface of the control board,

An operation surface of an operation panel provided in the board housing portion is parallel to the board surface of the control board,

3. The cooking device according to claim 2, wherein the substrate housing section is tilted with the operation surface facing upward so that an optical axis of a lens included in the camera passes through a center of the reading area. ..