JP2017221411A - Housing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing body capable of simplifying a structure for measuring a load of the housing body.SOLUTION: A housing body 1 includes a case 10 having a grip part 15, a load cell attached to the case 10 for detecting the magnitude of a load applied to the grip part 15, a display 31 attached to the case 10 so as to be visually recognized from the outside of the case 10 for displaying the magnitude of the load detected by the load cell, and a control part connected to the load cell and the display 31. Upon receipt of trigger input based on electric detection in a case where the display 31 is in a non-drive state, the control part transfers the display 31 from the non-drive state to a drive state, and causes the display 31 to start displaying the result of detection by the load cell.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container.

  Patent documents 1 and 2 disclose a bag with a load cell attached thereto. In the bag described in Patent Document 1, a load cell is arranged on the bottom surface of the outer shell so that the current weight of the bag is measured while the cover of the outer shell is open. In addition, an indicator for displaying information on the measurement result of the load cell is attached to the outer shell. In the bag described in Patent Document 2, a display board is attached near the handle of the bag. When the handle is lifted, the load applied to the handle is detected by the load cell, and the detected load is displayed. Displayed on the board. With the scissors described in Patent Document 1, the weight of the scissors cannot be measured in a state where the cover of the outer shell is closed, whereas in the scissors described in Patent Document 2, the scissors are lifted by lifting the handle. Since the weight of the bag is detected, the weight of the bag can be measured even when the bag is closed.

JP 2014-132747 A Utility Model Registration No. 3052154

  In the bag described in Patent Document 2, the handle is fixed to the surface of the bag by a fixture other than during weight measurement. And at the time of weight measurement, a fixing tool is removed and a handle protrudes from the surface of a bag. When the fixture is removed, a switch that operates in conjunction with the fixture is activated, and display of the load cell detection result on the display board is started. However, when such a mechanism is provided in the container, the structure of the container is complicated, so that the manufacturing process may be complicated and the manufacturing cost may increase. Furthermore, the design change of the container may be complicated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a container that can simplify the structure for measuring the weight of the container.

  The container of the present invention includes a case having a gripping part, a load cell attached to the case and detecting the magnitude of a load applied to the gripping part, and attached to the case so as to be visible from the outside of the case. A display for displaying the magnitude of the detected load; and a control unit connected to the load cell and the display. The control unit receives a trigger input based on electrical detection when the display is in a non-driven state. When accepted, the display is shifted from the non-driving state to the driving state, and the display of the load cell detection result is started on the display.

  In this container, when the control unit receives a trigger input based on electrical detection when the display is in the non-driven state, the display shifts from the non-driven state to the driven state, and the load cell detection result is displayed on the display. Display starts. This eliminates the need to provide a complicated mechanism for shifting the display from the non-driving state to the driving state and starting display of the load cell detection result on the display, and thus a structure for measuring the weight of the container is provided. It can be simplified. “Electrical detection” means “detection without using a mechanical mechanism”. For example, weight detection by a load cell, acceleration detection by an acceleration sensor, or human body detection by a touch sensor. In addition to contact detection, magnetic detection, wireless power supply and users obtained from various wireless communications such as UHF band, HF band, 2.4 GHz band Bluetooth LE (registered trademark) and 5.8 GHz band directional power supply Wireless rewriting to a memory area or the like is also included.

  In the above container, the trigger input may be an input from the load cell to the control unit when a load greater than a predetermined value corresponding to the weight of the case is detected by the load cell. In this case, when the gripping part is lifted to measure the weight of the container and a load of a predetermined value or more corresponding to the weight of the case is applied to the gripping part, the display shifts from the non-driving state to the driving state, and the load cell is detected. Results are displayed on the display. According to this configuration, the load cell is used as a trigger input generation means, and a new configuration is added to start the display of the load cell detection result on the display by shifting the display from the non-driven state to the driven state. Therefore, the structure of the container can be further simplified.

  The container further includes an acceleration sensor attached to the case, and the trigger input is detected by the acceleration sensor with an acceleration of a predetermined value or more corresponding to the magnitude of the acceleration generated in the case when the case is lifted. It may be an input from the acceleration sensor to the control unit. In this case, the case is lifted to measure the weight of the container, and the display is driven from the non-driving state when an acceleration exceeding a predetermined value corresponding to the magnitude of the acceleration generated in the case occurs when the case is lifted. Transition to the state starts displaying the load cell detection result on the display. According to this configuration, since the acceleration sensor that can be configured relatively simply is used as the trigger input generation means, the structure of the container can be suitably simplified.

  The container is further provided with a touch sensor that is attached to the grip portion and detects contact with the human body, and the trigger input is input from the touch sensor to the control unit when contact with the human body is detected by the touch sensor. May be. In this case, when the user grips the grip portion and touches the touch sensor attached to the grip portion, the display shifts from the non-driving state to the driving state, and display of the load cell detection result on the display is started. According to this configuration, since the touch sensor that can be configured relatively simply is used as the trigger input generation means, the structure of the container can be suitably simplified.

  In the above container, when the display is in the driving state, the control unit may shift the display from the driving state to the non-driving state when a predetermined time has elapsed without receiving the trigger input. According to this configuration, when the control unit does not accept the trigger input for a predetermined time, the display shifts from the driving state to the non-driving state, so that waste of power can be suppressed.

  The container may further include a communication IC that performs wireless communication with the outside, and power may be supplied to the display and the control unit by wireless communication via the communication IC. According to this configuration, power is supplied to the display and the control unit by wireless communication with the outside, and the power supply structure in the container can be omitted or simplified, so the structure of the container can be further simplified. Can do.

  In the above container, the load cell may be disposed inside the grip portion. According to this configuration, even if the shape of the other part of the case excluding the gripping portion is changed, it is not necessary to change the configuration of the gripping portion and the load cell arranged therein, so the design change of the container Can be facilitated.

  The container further includes an acceleration sensor attached to the case, and the case has a first grip portion disposed on the first surface of the case, and a second surface intersecting the first surface of the case. The display is disposed on the first surface, and the control unit is configured to place the case on the first surface based on the detection result of the acceleration sensor. It is determined whether the first surface is parallel to the placement surface. When the first surface is parallel to the placement surface, the transition of the display from the non-driving state to the driving state is permitted. If it is not parallel to the placement surface, the display may be prohibited from transitioning from the non-driven state to the driven state. According to this configuration, the display shifts from the non-driven state to the driven state only when the first surface on which the display is disposed is parallel to the placement surface and the user can easily see the display. Since the display of the load cell detection result on the display is started, waste of power can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the container which can simplify the structure for measuring the weight of a container.

FIG. 1 is a perspective view showing a container according to an embodiment of the present invention. FIG. 2 is a view of a part of the container of FIG. 1 as viewed from the arrow A side. FIG. 3 is a block diagram showing a configuration of the container of FIG. FIG. 4 is a block diagram illustrating a configuration of the container according to the first modification. FIG. 5 is a block diagram illustrating a configuration of a container according to a second modification. FIG. 6 is a perspective view showing a container according to a third modification.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same reference numerals are used for the same or corresponding elements, and duplicate descriptions are omitted.

  A container 1 shown in FIGS. 1 and 2 is a container capable of accommodating an arbitrary object. In this embodiment, the container 1 is comprised as a suitcase which can accommodate and carry clothing etc. as an example. The container 1 includes a case 10, a load cell 20, and an electronic device 30.

  The case 10 includes a body 11, a handle 14, a grip portion 15, and four casters 16. The body 11 includes, for example, a body side shell 12 and a lid side shell 13. The body-side shell 12 includes a flat plate portion 12a and a side plate portion 12b that stands up around the flat plate portion 12a. The lid-side shell 13 has a flat plate portion 13a and a side plate portion 13b erected around the flat plate portion 13a. The body-side shell 12 and the lid-side shell 13 can be opened and closed by an opening / closing mechanism such as a slide fastener in a state in which the side plate portions 12b and 13b are in contact with each other. Thereby, the body 11 has a box shape, for example, and can accommodate any object. The material of the body 11 is a resin such as polycarbonate or ABS.

  The handle 14 and the grip portion 15 are attached to the one surface 12c of the side plate portion 12b, for example. The handle 14 is configured to be extendable and retractable and can be stored in the body shell 12. The grip portion 15 is a handle for the user to grip, and has, for example, a substantially C shape. The grip portion 15 is attached to the one surface 12c via a hinge mechanism, and is rotatable between a first position (use position) perpendicular to the one surface 12c and a second position (storage position) along the one surface 12c. It has become. In FIG. 1, the grip portion 15 located at the first position is shown, and in FIG. 2, the grip portion 15 located at the second position is shown. Further, the urging force is applied to the grip portion 15 in the direction from the first position to the second position by the spring mechanism, and the grip portion 15 is in the second state when no external force is applied. Located in position. The four casters 16 are wheels for facilitating carrying of the case 10 and are respectively attached to the corners of the surface facing the one surface 12c of the side plate portion 12b.

  As shown in FIG. 2, the load cell 20 is disposed inside the grip portion 15. The load cell 20 detects the magnitude of the load applied to the grip portion 15. The load cell 20 is composed of, for example, a strain gauge, and outputs a voltage having a magnitude corresponding to a load applied to the gripping unit 15 to the control unit 40 described later. The load cell 20 is driven by electric power from the control unit 40, for example. The control unit 40 calculates the magnitude of the load applied to the gripping unit 15 based on the magnitude of the voltage input from the load cell 20. The load cell 20 may be configured by a piezo film, a compression element, or a displacement sensor, may be a magnetostrictive type, a capacitance type, or a gyro type, and is based on an acceleration calculation. Also good.

  As shown in FIG. 2, the electronic device 30 is attached to one surface 12c of the side plate portion 12b. The electronic device 30 has, for example, a rectangular shape in plan view (when viewed from the arrow A side in FIG. 1, that is, when viewed from a direction orthogonal to the one surface 12 c). The electronic device 30 is arranged inside a rectangular region S surrounded by the grip portion 15 located at the second position in plan view. Thereby, damage to the electronic device 30 (display 31) can be suppressed. For example, the electronic device 30 is accommodated in a recess provided in the one surface 12c and is flush with the one surface 12c.

  For example, the electronic device 30 is configured as a bag tag used in a baggage transport system such as an airport. As shown in FIG. 3, the electronic device 30 includes a display 31, a storage unit 32, an HF band IC (communication IC) 33, an HF band antenna 34, a power supply circuit 35, and a UHF band IC (for communication). IC) 36, UHF band antenna 37, and control unit 40. The display 31, the storage unit 32, the HF band IC 33, the HF band antenna 34, the power supply circuit 35, the UHF band IC 36, the UHF band antenna 37, and the control unit 40 are accommodated in one casing.

  The display 31 includes, for example, an electrophoretic method, an electronic paper such as a ferroelectric liquid crystal, a cholesteric liquid crystal, and an electrochromic liquid crystal, a liquid crystal display, an organic EL, and the like. The display 31 is attached to the case 10 so as to be visible from the outside of the case 10. In the present embodiment, the electronic device 30 is accommodated in the concave portion of the one surface 12c described above so that the display surface of the display 31 is exposed from the one surface 12c of the side plate portion 12b. It is possible.

  The display 31 displays the magnitude of the load detected by the load cell 20 on the display surface by, for example, a numerical display in which the unit is kg. In addition, the display 31 may display the same content as that printed on a conventional paper bag tag. That is, the display 31 may further display a one-dimensional barcode or two-dimensional code that can be read by a device such as a hand scanner, a barcode scanner, or an automatic luggage scanner, or may further display a plain text or a reference number. Also good.

  The storage unit 32 is configured by, for example, a non-volatile memory, and stores information relating to the individual identification of the electronic device 30 and the itinerary (airline company name, flight number, waypoint, final destination and tag number, license plate number (LPN), etc.) Etc.) are stored. Further, the storage unit 32 may store the magnitude of the load applied to the grip unit 15 detected by the load cell 20, that is, the weight of the container 1.

  The HF band antenna 34 can perform wireless communication at a short distance using, for example, an HF frequency band of 13.56 MHz. This communication is controlled by the HF band IC 33. The HF band antenna 34 allows the electronic device 30 to communicate with a reader / writer terminal or an NFC smartphone that supports communication standards such as ISO / IEC 14443 Type A / B, ISO / IEC 18092, FeliCa (registered trademark), or NFC (Near Field Communication). It has become.

  The UHF band antenna 37 can perform wireless communication using a UHF frequency band of 860 MHz to 960 MHz. This communication is controlled by the UHF band IC 36. For example, data stored in the storage unit 32 of the electronic device 30 or the memory area in the UHF band IC 36 is read by a baggage transport system provided with a reader / writer that supports UHF band communication. The UHF band antenna 37 can have various shapes such as a meander shape, a dipole, and a double dipole. The power supply circuit 35 rectifies the voltage induced by the UHF band antenna 37 and supplies power to the control unit 40 when power is supplied via the UHF band antenna 37 described later.

  The control unit 40 controls the entire electronic device 30. The control unit 40 is electrically connected to the display 31, the storage unit 32, the HF band IC 33, the HF band antenna 34, the power supply circuit 35, the UHF band IC 36, and the UHF band antenna 37. The control unit 40 is configured by, for example, an MCU (Micro Controller Unit), and includes, for example, a display 31 and a storage by a wired I2C (Inter-integrated Circuit) interface, a serial interface SPI (Serial Parallel Interface), or a UART (Universal Asynchronous Receiver Trasmitter). The unit 32, the HF band IC 33, the HF band antenna 34, the power supply circuit 35, the UHF band IC 36, and the UHF band antenna 37 are electrically connected. Furthermore, the control unit 40 is electrically connected to the load cell 20 by, for example, wiring provided in the gripping unit 15 and along the one surface 12c of the side plate 12b.

  The control unit 40 performs control for rewriting various information stored in the storage unit 32, the memory area in the HF band IC 33, the memory area in the UHF band IC 36, and the like, and rewriting the display contents of the display 31. For example, in the electronic device 30, power is supplied to the HF band IC 33 and the control unit 40 by a reader / writer terminal such as a smartphone that supports NFC. As a result, the control unit 40 updates various information stored in the storage unit 32, the memory area in the HF band IC 33, the memory area in the UHF band IC 36, and the like to new information received by the HF band antenna 34. can do. Moreover, the control part 40 can rewrite the display content of the display 31 based on the updated information. That is, when the information to be displayed on the display 31 is included in the new information received by the HF band antenna 34, the control unit 40 rewrites the display image on the display 31. Further, even when information to be displayed on the display 31 is generated by the firmware in the control unit 40 based on the received information, the control unit 40 rewrites the display image on the display 31.

  Further, the control unit 40 includes at least a part of the contents displayed on the display 31, the storage unit 32, the memory area in the HF band IC 33, the various areas stored in the memory area in the UHF band IC 36, and the like. Control is performed to transmit data from the UHF band antenna 37 to a baggage transport system, an automatic baggage depositor, or a departure control system (hereinafter referred to as a “baggage transport system or the like”). For example, power is supplied to the UHF band IC 36 and the control unit 40 by a reader / writer such as a baggage transportation system. Thereby, the control unit 40 performs control to transmit the data stored in the storage unit 32 and the like from the UHF band antenna 37 to the baggage transportation system and the like. The data transmitted to the baggage transportation system and the like include, for example, a tag number, a license plate number (LPN), an airline name, a flight name, a waypoint, etc., and a container stored in the storage unit 32 A weight of 1 may further be included. When the weight of the container 1 is transmitted to the baggage transport system or the like, the weight of the container 1 detected by the load cell 20 and stored in the storage unit 32 can be used on the baggage transport system or the like side. Further, it is possible to omit the measurement of the weight of the container 1 at a baggage transportation system or at an airport counter, so that convenience can be improved.

  Next, control for shifting the display 31 from the non-driving state to the driving state and causing the display 31 to start displaying the detection result of the load cell 20 will be described. In the container 1, when the display unit 31 is in the non-driven state, the control unit 40 shifts the display 31 from the non-driven state to the driven state when receiving a trigger input based on electrical detection, and causes the display 31 to load cells. Display of 20 detection results is started.

  Specifically, at a normal time when the detection result of the load cell 20 is not displayed on the display 31, the control unit 40 does not supply power to the display 31, and the display 31 is in a non-driven state. In this case, when receiving the trigger input, the control unit 40 supplies power to the display 31 and shifts the display 31 from the non-driving state to the driving state. This electric power is supplied to the control unit 40 via the HF band IC 33 or the UHF band IC 36. That is, in the present embodiment, power is supplied to the display 31 and the control unit 40 by wireless communication via the HF band IC 33 or the UHF band IC 36.

  In the present embodiment, the trigger input is an input from the load cell 20 to the control unit 40 when a load of a predetermined value or more corresponding to the weight of the case 10 is detected by the load cell 20. This predetermined value is set to the same value (for example, 3 kg) as the weight of the case 10, for example. As a result, when the grip 15 is lifted for measuring the weight of the container 1 and a load of a predetermined value or more corresponding to the weight of the case 10 is applied to the grip 15, the display 31 shifts from the non-driving state to the driving state. Then, the display of the detection result of the load cell 20 on the display 31 is started.

  In addition, when the display 31 is in the driving state, the control unit 40 stops supplying power to the display 31 when the predetermined time has elapsed without receiving the trigger input, and the display 31 is changed from the driving state to the non-driving state. Transition. This predetermined time is set to 120 seconds, for example. This time counting can be performed by, for example, a real-time clock or a crystal resonator mounted on the electronic device 30. In the present embodiment, even when the display 31 is in a non-driven state and the detection result of the load cell 20 is not displayed on the display 31, the control unit 40 continues to detect the load on the load cell 20. In order for the load cell 20 to continue detecting the load, for example, the electronic device 30 may include a primary battery. Alternatively, the electronic device 30 may include an energy harvesting device such as a solar cell, vibration power generation, or temperature difference power generation. In this case, the combined use with a capacitor, a secondary battery, or the like can cause the control unit 40 to be driven at a low consumption for a predetermined time (for example, 12 hours) and continue to detect the load on the load cell 20 even after the environmental power generation is stopped. It becomes possible.

  In the container 1 configured as described above, when the control unit 40 receives a trigger input based on electrical detection when the display 31 is in the non-driven state, the display 31 shifts from the non-driven state to the driven state. Then, the display of the detection result of the load cell 20 on the display 31 is started. As a result, it is not necessary to provide a complicated mechanism for shifting the display 31 from the non-driven state to the driven state and starting display of the detection result of the load cell 20 on the display 31, so the weight of the container 1 is measured. The structure for this can be simplified.

  In the container 1, the trigger input is an input from the load cell 20 to the control unit 40 when a load of a predetermined value or more corresponding to the weight of the case 10 is detected by the load cell 20. As a result, when the grip 15 is lifted for measuring the weight of the container 1 and a load of a predetermined value or more corresponding to the weight of the case 10 is applied to the grip 15, the display 31 shifts from the non-driving state to the driving state. Then, the display of the detection result of the load cell 20 on the display 31 is started. According to this, the load cell 20 is used as a trigger input generation means, and a new one is used to start display of the detection result of the load cell 20 on the display 31 by shifting the display 31 from the non-driving state to the driving state. Since it is not necessary to add a configuration, the structure of the container 1 can be further simplified.

  Further, in the container 1, when the display 31 is in the driving state, the control unit 40 shifts the display 31 from the driving state to the non-driving state when a predetermined time has elapsed without receiving a trigger input. Thereby, when the control unit 40 does not accept the trigger input for a predetermined time, the display 31 shifts from the driving state to the non-driving state, so that waste of power can be suppressed.

  The container 1 further includes an HF band IC 33 and a UHF band IC 36 that perform wireless communication with the outside, and power is supplied to the display 31 and the control unit 40 by wireless communication via the HF band IC 33 and the UHF band IC 36. . Accordingly, power is supplied to the display 31 and the control unit 40 by wireless communication with the outside, and the power supply structure in the container 1 can be omitted or simplified, so that the structure of the container 1 is further simplified. can do.

  In the container 1, the load cell 20 is disposed inside the grip portion 15. As a result, even if the shape of the other part of the case 10 excluding the gripping part 15 is changed, it is not necessary to change the configuration of the gripping part 15 and the load cell 20 disposed therein. Design changes can be facilitated. In addition, the design load is small even when an independent large antenna is separately mounted in the case 10 in order to improve antenna communication characteristics particularly in UHF band communication or the like.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the container 1 may be configured as in the first modification shown in FIG. In the first modified example, the electronic device 30 further includes an acceleration sensor 41 housed in the housing together with the display 31 and the like. The acceleration sensor 41 detects the acceleration of the case 10 in, for example, a triaxial direction, and outputs the detection result to the control unit 40. In the first modified example, the trigger input is performed from the acceleration sensor 41 when the acceleration sensor 41 detects an acceleration of a predetermined value or more corresponding to the magnitude of the acceleration generated in the case 10 when the case 10 is lifted. 40 as an input. This predetermined value is set to a value equal to the magnitude of the gravitational acceleration, for example, and when the acceleration having the magnitude of the gravitational acceleration is generated vertically upward in the case 10, the control unit 40 determines that the trigger input has been received.

  Also according to the first modified example, the structure for measuring the weight of the container 1 can be simplified as in the above embodiment. Further, in the first modified example, the case 10 is lifted for measuring the weight of the container 1, and an acceleration of a predetermined value or more corresponding to the magnitude of acceleration generated in the case 10 when the case 10 is lifted is increased. If this occurs, the display 31 shifts from the non-driven state to the driven state, and display of the detection result of the load cell 20 on the display 31 is started. Thereby, since the acceleration sensor 41 that can be configured relatively simply is used as the trigger input generation means, the structure of the container 1 can be suitably simplified.

  Further, the container 1 may be configured as in the second modified example shown in FIG. In the second modification, the container 1 further includes a touch sensor 42 that is attached to the grip portion 15 and detects contact of a human body. The touch sensor 42 is, for example, a capacitive sensor, and is disposed on the grip portion 15 so that a user who grips the grip portion 15 comes into contact with the touch sensor 42. The touch sensor 42 is electrically connected to the control unit 40 and outputs a detection result to the control unit 40. In the second modification, the trigger input is an input from the touch sensor 42 to the control unit 40 when the touch of the human body is detected by the touch sensor 42.

  Also according to the second modification, the structure for measuring the weight of the container 1 can be simplified as in the above embodiment. Furthermore, in the second modification, when the user grips the grip portion 15 and touches the touch sensor 42 attached to the grip portion 15, the display 31 shifts from the non-drive state to the drive state, and the load cell 20 is detected. Display of the result on the display 31 is started. Thereby, since the touch sensor 42 that can be configured relatively simply is used as the trigger input generation means, the structure of the container 1 can be suitably simplified.

  Moreover, the container 1 may be configured like a container 1A of the third modified example shown in FIG. In the container 1A, the electronic device 30 includes the acceleration sensor 41 as in the first modification. Further, the case 10 is disposed on the second surface 10b that intersects the first surface 10a of the case 10 in addition to the grip portion (first grip portion) 15 disposed on the first surface 10a of the case 10. It further has a grip part (second grip part) 43. The electronic device 30 (display 31) is arrange | positioned at the 1st surface 10a similarly to the said embodiment. In this example, the first surface 10a and the second surface 10b are orthogonal to each other. The grip part 43 is rotatable with respect to the second surface 10b, for example, like the grip part 15.

  In the third modification, the control unit 40 determines whether or not the first surface 10a is parallel to the placement surface F on which the case 10 is placed based on the detection result of the acceleration sensor 41. When the first surface 10a is parallel to the placement surface F, the transition of the display 31 from the non-driven state to the drive state is allowed, and when the first surface 10a is not parallel to the placement surface F, Transition of the display 31 from the non-driven state to the driven state is prohibited. Here, the placement surface F is a surface on which the case 10 is placed, and is, for example, the ground surface or the floor surface. Accordingly, when the display 31 is in the non-driven state and the first surface 10a is parallel to the placement surface F, when the control unit 40 receives the trigger input, the display 31 is changed from the non-energized state to the driven state. When the display unit 31 starts to display the detection result of the load cell 20 on the display 31 while the display 31 is in the non-driven state and the first surface 10a is not parallel to the placement surface F, the control unit 40 When the trigger input is received, the display 31 does not shift from the non-energized state to the driving state, and the display of the detection result of the load cell 20 on the display 31 is not started.

  Also according to the third modified example, the structure for measuring the weight of the container 1A can be simplified as in the above embodiment. Furthermore, in the third modified example, the display 31 is non-displayed only when the first surface 10a on which the display 31 is arranged is parallel to the placement surface F and the user can easily see the display 31. Since the driving state is shifted to the driving state and display of the detection result of the load cell 20 on the display 31 is started, waste of power can be suppressed.

  In the above embodiment, power is supplied to the display 31 and the control unit 40 by wireless communication via the HF band IC 33 or the UHF band IC 36. That is, the container 1 serves as the HF band IC 33 or the power supply unit. Although the UHF band IC 36 is provided, the container 1 may include a primary battery or a solar battery, an environmental power generation device such as vibration power generation or temperature difference power generation, or the like as a power supply unit. Further, the communication coil and the power feeding coil may be the same, or may be configured separately from each other. When the communication coil and the power feeding coil are separate, for example, the area of the power feeding coil can be made larger than the area of the communication coil.

  The frequency band used in the above embodiment is an example, and an arbitrary frequency band may be used. For example, data communication or image rewriting power generation may be performed between the electronic device 30 and the baggage transportation system in the 2.4 GHz microwave frequency band. In this case, the electronic device 30 and the baggage transportation system, etc. are communicated in the 2.4 GHz band by Bluetooth (registered trademark), Bluetooth LE (registered trademark), ANT (registered trademark) communication or wireless LAN (including Wi-Fi). Data communication may be performed between the two, and these communication methods may be used in addition to the HF band and UHF band antennas. Moreover, it may be temporarily stored in a secondary battery, a capacitor or the like, and may receive all or part of the necessary power.

  Moreover, although the example in which the case 10 is formed of a resin such as polycarbonate or ABS is shown, the present invention is not limited to this. For example, the case 10 may be made of a metal such as aluminum or duralumin. Moreover, in the said embodiment, although the suitcase was illustrated as the container 1, it is not limited to this. For example, the container 1 is used for logistics boxes (folding containers), cases used for process management of factories, containers of various sizes used for railway transportation, home delivery, etc., in-house flights, confidential document processing, etc. It can be configured as various containers such as a case for reciprocating letters premised on reuse.

  Moreover, in the said embodiment, the holding part 15 does not need to be rotatable between the 1st position and the 2nd position, for example, may be fixed in the 1st position. Further, the load cell 20 may not be disposed inside the grip portion 15, for example, may be disposed inside the region S in a plan view, or may be disposed on a portion other than the region S on the one surface 12 c of the side plate portion 12 b. It may be arranged. Alternatively, the load cell 20 may be disposed inside the handle 14. Further, the electronic device 30 may not be disposed inside the region S in plan view, and may be disposed, for example, in a portion other than the region S on the one surface 12c of the side plate portion 12b. The electronic device 30 may be disposed on the lid-side shell 13. In this case, for example, when the body-side shell 12 and the lid-side shell 13 are abutted, the terminals of the electronic device 30 and the terminals of the load cell 20 may be in contact with each other and electrically connected to each other.

  Moreover, the trigger input should just be input into the control part 40 based on an electrical detection. “Electrical detection” means “detection without using a mechanical mechanism”. For example, weight detection by the load cell 20, acceleration detection by the acceleration sensor 41, or touch sensor 42. In addition to the detection of human contact by means of wireless, wireless detection obtained from various wireless communications such as magnetic detection, UHF band, HF band, Bluetooth LE (registered trademark) of 2.4 GHz band, etc., and 5.8 GHz band directional power supply Power supply and wireless rewriting to the user memory area (storage unit 32) are also included. The control unit 40 also includes a trigger input based on weight detection by the load cell 20 of the embodiment, a trigger input based on acceleration detection by the acceleration sensor 41 of the first modification, and a touch sensor 42 of the second modification. When any of the trigger inputs based on the detection of the contact of the human body is received, the display 31 may be shifted from the non-driven state to the driven state, and the display 31 may start displaying the detection result of the load cell 20. Further, a voltage detector such as a voltage detector may be used for detecting the trigger input.

DESCRIPTION OF SYMBOLS 1,1A ... Container, 10 ... Case, 10a ... 1st surface, 10b ... 2nd surface, 15 ... Holding part (1st holding part), 20 ... Load cell, 31 ... Display, 33 ... HF band IC (Communication IC), 36... UHF band IC (communication IC), 40... Control unit, 41... Acceleration sensor, 42... Touch sensor, 43 ... gripping part (second gripping part), F.

Claims (8)

A case having a gripping portion;
A load cell that is attached to the case and detects a magnitude of a load applied to the gripping portion;
A display that is attached to the case so as to be visible from the outside of the case and displays the magnitude of the load detected by the load cell;
A control unit connected to the load cell and the display,
When the control unit receives a trigger input based on electrical detection when the display is in a non-driving state, the control unit shifts the display from a non-driving state to a driving state, and displays the detection result of the load cell on the display. The container that starts the display.   The container according to claim 1, wherein the trigger input is an input from the load cell to the control unit when a load equal to or greater than a predetermined value corresponding to the weight of the case is detected by the load cell. An acceleration sensor attached to the case;
The trigger input is an input from the acceleration sensor to the control unit when an acceleration of a predetermined value or more corresponding to the magnitude of acceleration generated in the case when the case is lifted is detected by the acceleration sensor. The container according to claim 1 or 2. A touch sensor that is attached to the gripping part and detects a human contact;
The container according to any one of claims 1 to 3, wherein the trigger input is an input from the touch sensor to the control unit when contact of a human body is detected by the touch sensor.   5. The control unit according to claim 1, wherein, when the display is in a driving state, the control unit shifts the display from a driving state to a non-driving state when a predetermined time elapses without receiving the trigger input. The container according to item. It further includes a communication IC for performing wireless communication with the outside,
The container according to claim 1, wherein power is supplied to the display and the control unit by wireless communication via the communication IC.   The said load cell is a container as described in any one of Claims 1-6 arrange | positioned inside the said holding part. An acceleration sensor attached to the case;
The case has a first gripping part disposed on the first surface of the case and a second gripping part disposed on a second surface intersecting the first surface of the case. And
The display is disposed on the first surface;
The control unit determines whether the first surface is parallel to a placement surface on which the case is placed based on a detection result of the acceleration sensor, and the first surface is a front surface. When the display surface is parallel to the placement surface, the transition of the display from the non-driven state to the drive state is allowed, and when the first surface is not parallel to the placement surface, the display is driven from the non-driven state. The container according to any one of claims 1 to 7, which prohibits transition to a state.

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