JP2023092826A - writing device - Google Patents

Abstract

To provide a writing device capable of reducing device costs and making the device compact.SOLUTION: A writing device 1 includes: weighing means 41 for weighing a container 130; a holding shaft 55 that holds a roll R1 around which a sheet 53 is wound; a driving roller 56 and a driven roller 57 that convey the sheet 53 fed from the roll R1 held by the holding shaft 55; and an RFID reader/writer 43 that writes, by wireless communication, information based on a weighing result by the weighing means 41 to an RFID label L1 attached to the conveyed sheet 53.SELECTED DRAWING: Figure 6

Description

Patent Act Article 30, Paragraph 2 application filed ・Totoya Co., Ltd. Totoya Kyoto Main Store July 24, 2021

The present invention relates to a writing device for writing the mass of an object to be weighed onto a recording medium.

2. Description of the Related Art Conventionally, as shown in Patent Document 1, for example, there is a weighing device for selling by weight that mounts an object to be weighed, such as various side dishes and various meats, on a scale, obtains the mass of the object, and sells the object. In the weighing device for selling by weight, when measuring the product mass, tare subtraction is performed to exclude the mass of the tare containing the product.

On the other hand, the customer side prepares a container as the container for the object to be weighed, weighs the mass of the container in advance using a weighing device for the container, and records the mass of the container using a writing device (for example, RFID), the recording medium is attached to the container, and the container is used for taring.

JP-A-2004-163994

However, in the case of the above-described writing device, a weighing device for weighing the container must be installed separately from the writing device, so there is a problem that not only is the cost of the device increased, but also a large installation area is required. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a writing apparatus which can reduce the cost of the apparatus and which can be made compact.

The present invention comprises weighing means for weighing an object to be weighed, holding means for holding a roll around which a sheet is wound, conveying means for conveying the sheet let out from the roll held by the holding means, and A writing device for writing information based on the result of weighing by the weighing means by wireless communication onto a recording medium attached to a conveyed sheet.

1 is a perspective view of a writing device 1; FIG. 3 is a diagram showing an example of functional blocks of the writing device 1; FIG. 1 is a block configuration diagram showing an example of a weighing system 1A; FIG. 3 is a diagram showing an example of functional blocks of a weighing and pricing device 110; FIG. 4 is a plan view showing part of a sheet 53 to which an RFID label L1 is attached; FIG. 3 is a schematic configuration diagram of a mechanism for holding/conveying a sheet 53 and a mechanism for writing information to an RFID label L1. FIG. 4 is an operation flow diagram showing one operation example of the writing device 1; FIG. It is a figure which shows the container placement instruction|indication screen G1 for automatic modes. FIG. 11 shows a mass writing instruction screen G2; FIG. 4 is an explanatory diagram of an operation method when operating in manual mode; FIG. 11 is a diagram showing an RFID label/container placement instruction screen G3 for manual mode. FIG. 11 shows a mass write instruction screen G4; FIG. 4 is an explanatory diagram of a method of attaching an RFID label L1; FIG. 11 shows a label weight setting screen G5;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a writing device 1 according to one embodiment of the invention. This writing device 1 is configured to measure the mass of an object to be weighed, write the mass on a recording medium, and issue the recording medium. In this example, a container for packing various products is used as the object to be weighed, and an RFID (radio frequency identifier) is used as the recording medium.

As shown in FIG. 1, the writing device 1 has a weighing pan 13 installed on the upper surface of the main body 11, and a display means (display/operation means) 15 that can be operated by an operator is installed on the front side of the main body 11. is configured as A recording medium issue port 17 is provided at a predetermined position (one corner) of the case 11A covering the outer periphery of the main body 11 .

FIG. 2 is a diagram showing an example of functional blocks of the writing device 1. As shown in FIG. As shown in the figure, the writing device 1 includes a CPU (control section) 31 that controls the operation of the writing device 1, and a hard disk (storage section) 33 that transfers and stores information stored in a RAM (storage section) 37. , a ROM (storage unit) 35 for storing programs to be executed by the CPU 31, a RAM 37 for storing various information, a display/operation means 15 for displaying various information and instructing various operations, and a load cell. Weighing means 41 for weighing the object to be weighed (hereinafter referred to as “container”) placed on the weighing pan 13 and writing and recording the weighed mass value in the following RFID label L1 built in the main body 11 A writing means (hereinafter referred to as "RFID reader/writer") 43, a conveying means (hereinafter referred to as "driving roller") 56 for conveying the following sheet 53 with the RFID label L1 attached, and various information with other devices A transmitting/receiving means 47 for transmitting/receiving data and a peeling sensor 49 for detecting that the RFID label L1 is peeled off from the sheet 53 are provided. Each component is connected to each other via a bus or other communication line 51 . The RAM 37 or the hard disk 33 stores the masses of the RFID label L1 and the protective seal 140 attached thereto, which will be described below. The display/operation means 15 is composed of a liquid crystal touch panel, and serves as display means and operation means at the same time. The display/operation unit 15 is hereinafter referred to as the touch panel 15 .

FIG. 3 is a block configuration diagram showing an example of a weighing system (merchandise data processing system) 1A configured using the above writing device 1. As shown in FIG. As shown in the figure, the weighing system 1A connects a store controller 100, a POS device 105, a weighing and pricing device 110, and a writing device 1 via a communication line 52, thereby enabling mutual data transmission and reception. is configured to be The store controller 100 is a computer that controls the entire weighing system 1A, and manages various data used by the POS device 105, the weighing and pricing device 110, and the writing device 1. The data of the label L1 and the like are stored and appropriately distributed to each device. The POS device 105 performs registration and settlement of products that the customer intends to purchase. The weighing and pricing device 110 is for selling by weight, and the product (in this example, a container containing the product) is placed on the weighing plate of the weighing and pricing device 110 and tare subtracted to calculate the selling price.・This is a device that displays and issues labels printed with barcodes, etc. The POS device 105 and the weighing and pricing device 110 may be operated by a store clerk or by a customer.

FIG. 4 is a diagram showing an example of functional blocks of the weighing and pricing device 110. As shown in FIG. As shown in the figure, the weighing and pricing apparatus 110 includes a CPU (control unit) 111 that controls the operation of the weighing and pricing apparatus 110, and a hard disk that transfers and stores information stored in a RAM (storage unit) 117. a storage unit) 113, a ROM (storage unit) 115 for storing programs executed by the CPU 111, a RAM 117 for storing various information, a display/operation means 119 for displaying various information and instructing various operations, and a load cell. A mass detection unit 121 for weighing an object to be weighed (hereinafter referred to as a “product”) placed on the weighing pan of the pricing device 110 using, etc., and a printing means 123 for printing and issuing receipts, labels, etc. , and transmitting/receiving means 125 for transmitting/receiving various information to/from other devices. Each component is connected to each other via a bus or other communication line 127 . The display/operation means 119 is composed of a liquid crystal touch panel, and serves as display means and operation means at the same time. Other devices that the transmitting/receiving means 125 transmits/receives include the store controller 100, the POS device 105, the writing device 1, and the RFID label L1 attached to the container placed on the weighing plate of the weighing and pricing device 110. is also included.

FIG. 5 is a plan view showing a part of the sheet 53 to which the RFID label L1 used in this embodiment is attached. As shown in the figure, the RFID label L1 is disk-shaped and is detachably attached to one surface of a strip-shaped sheet 53 in a line at equal intervals at predetermined intervals. The RFID label L1 is obtained by pasting an RFID on a circular adhesive sheet.

FIG. 6 is a schematic configuration diagram of a holding/conveying mechanism for the sheet 53 to which the RFID label L1 is attached and a mechanism for writing information to the RFID label L1 in the main body 11. As shown in FIG. As shown in the figure, the sheet 53 to which the RFID label L1 is attached is wound around a holding shaft 55 as a holding means with the side to which the RFID label L1 is attached facing outward, and is rolled (RFID label roll or label roll) is held as R1. The holding shaft 55 is rotatable so that the sheet 53 can be smoothly fed out from the roll R1.

The sheet 53 is let out from the roll R1 by a driving roller 56 serving as a conveying means and a driven roller 57 holding the sheet 53 together with the driving roller 56 . The driving roller 56 is rotationally driven by a driving device such as a motor to feed out or reverse the sheet 53 .

A sheet rotating member 58 for label peeling is installed on the feeding direction side (downstream side) of the sheet 53 fed from the roll R1 from the driving roller 56, and further on the feeding direction side of the sheet rotating member 58 (downstream side). A sheet take-up shaft 59 for taking up the sheet 53 after the RFID label L1 has been peeled off is installed downstream). The surface of the rotating portion 58a of the sheet rotating member 58 is curved, so that the RFID label L1 can be peeled off from the sheet 53. FIG.

Two label guide rollers 61, 61 are installed in front of the sheet turning member 58 (the direction in which the peeled RFID label L1 faces). Both label guide rollers 61, 61 place the RFID label L1 peeled off from the sheet 53 on the upper surface thereof and discharge it from the recording medium issuing port 17. As shown in FIG.

An RFID reader/writer 43 as writing means is installed above the sheet 53 on the roll R1 side (upstream side) of the driving roller 56 with a predetermined narrow gap therebetween. The RFID reader/writer 43 writes information (sometimes can be read).

A peel detection sensor 65 for detecting that the RFID label L1 is peeled from the sheet 53 is installed near and above the sheet turning member 58 and the label guide rollers 61 and 61 . The peeling detection sensor 65 detects the presence or absence of the RFID label L1 using, for example, an optical method.

FIG. 7 is an operation flow diagram showing an operation example of the writing device 1. As shown in FIG. Since the writing device 1 normally writes to the RFID label L1 in the automatic mode, a container placement instruction screen G1 for the automatic mode shown in FIG. 8 is displayed on the touch panel 15 as an initial screen in this example. (step 1-1).

Here, the automatic mode refers to a mode in which writing is performed on the RFID label L1 attached to the sheet 53 pulled out from the roll R1 stored in the writing device 1, and the manual mode refers to the RFID label L1 attached to the sheet 53. A mode in which writing is performed on an RFID label other than the label L1.

As shown in FIG. 8, the automatic mode container placement instruction screen G1 includes an automatic mode switching button G11, a manual mode switching button G13, an operation content display field G15, a mass display field G17, and a zero reset button. G19, a feed button G21, and a write instruction button G23 are displayed.

In the case of this example, since it is the automatic mode, the display of the automatic mode switching button G11 is displayed brighter than the display of the manual mode switching button G13 (hatched in the figure to indicate that it is brighter).

In addition, the operation content display field G15 displays the operation content display with the words "Put the container and the lid on" and the operation content display with a diagram. At this time, the write instruction button G23 is displayed in a dark color to indicate that this button cannot be pressed at this stage (it does not work even if it is pressed). It prevents writing, that is, prevents erroneous writing.

The feed button G21 is a button that moves the leading RFID label L1 pasted on the sheet 53 to a position near the RFID reader/writer 43 by pressing it when the cassette of the roll R1 is replaced.

[Operation in automatic mode]
Next, when the operation is to be performed in the automatic mode as it is, the process proceeds directly from "N" in step 1-2 to step 1-3, and the weighing pan of the writing device 1 follows the instructions on the container placement instruction screen G1 for the automatic mode. On 13, the container brought by the customer and the lid of the container are placed. When the measurement result of the mass is stabilized (“Y” in step 1-3→“Y” in step 1-4), the mass writing instruction screen G2 shown in FIG. 9 is displayed (step 1-5). In the mass writing instruction screen G2, the measured mass value is displayed in the mass display field G17. On the mass write instruction screen G2, in addition to the mass value, in the operation content display field G15, a diagram showing that the container and the lid are placed on the weighing pan 13 and "Would you like to write the mass of the container and the lid? ' is displayed, and the display of the write instruction button G23 is changed to a bright color to indicate that this button can be pressed (that the button can be operated). The lightening of the write instruction button G23 is performed on the condition that the weighing result by the weighing means 41 is stabilized. That is, when a container or lid is placed on the weighing pan 13 and the weighing result is stabilized, the write instruction button G23 is brightly displayed and can be operated. is displayed darkly and cannot be operated (this configuration is the same in the manual mode described below).

Next, when the write instruction button G23 is pressed ("Y" in step 1-6), the mass value of the RFID label L1 stored in the RAM 37 or the like ( (including the mass value of the protective seal 140 described below) is stored in the memory of the RFID label L1 (located at position E1 in FIG. 6) located within the antenna operation range by the RFID reader/writer 43. Record via wireless communication (step 1-7). That is, the writing operation to the RFID label L1 by the RFID reader/writer 43 is made possible on the condition that the weighing result by the weighing means 41 is stabilized as described above, so that an accurate weighing result can be written to the RFID label L1. ing.

Next, the sheet 53 is fed forward by a predetermined distance, that is, one pitch of the adjacent RFID labels L1 by the driving roller 56 and the driven roller 57 (step 1-8). As a result, the RFID label L1 having the mass value recorded at the position E1 shown in FIG. Move to E2.

At this time, the peel detection sensor 65 detects whether or not the RFID label L1 is normally peeled off from the sheet 53 (step 1-9).

If it is detected that the peeling has been performed normally ("Y" in step 1-9), it means that the above series of write processing has been completed, so the process returns to step 1-1 and the automatic mode shown in FIG. The container placement instruction screen G1 for 1 is displayed on the touch panel 15 again.

A part of the RFID label L1 at the position E2 after being peeled off is exposed outside from the recording medium issuing port 17, so that it can be taken out by picking it up with fingers.

On the other hand, if it is detected that the peeling has not been performed normally ("N" in step 1-9), the touch panel 15 displays and informs that the peeling abnormality has occurred (step 1-10). As an example of the notification method, although not illustrated, for example, a message such as "An abnormality occurred in issuing the RFID label. Please check by opening the door for sheet replacement" and Display a diagram of how to open the door.

[Operation in manual mode]
When operating in the manual mode, the manual mode switching button G13 in the automatic mode container placement instruction screen G1 displayed in step 1-1 is pressed ("Y" in step 1-2). As a result, the process proceeds to step 1-11, and the sheet 53 is reversed by a predetermined distance, in this example, by one pitch of the adjacent RFID label L1 by the reverse rotation of the drive roller 56. FIG. FIG. 10 shows the state at this time. As shown in the figure, by running the sheet 53 in the reverse direction, writing by the RFID reader/writer 43 to the RFID label L1 attached to the sheet 53 is prevented. In other words, by running in reverse, the RFID label L1 is moved out of the write antenna range (writable range) of the RFID reader/writer 43 .

Next, in step 1-12, an RFID label placement and container placement instruction screen G3 for manual mode as shown in FIG. 11 is displayed. In this RFID label placement and container placement instruction screen G3, the same reference numerals are given to the same or corresponding parts as the container placement instruction screen G1 shown in FIG. That is, the RFID label arrangement and container placement instruction screen G3 also has an automatic mode switching button G11, a manual mode switching button G13, an operation content display field G15, a mass display field G17, a zero reset button G19, and a feed button G21. , and a write instruction button G23 are displayed.

In this case, since it is the manual mode, the display of the manual mode switching button G13 is displayed brighter than the display of the automatic mode switching button G11 (indicated by diagonal lines in the drawing to indicate that it is brighter).

In addition, the operation content display field G15 displays the operation content display with the words "please place the RFID label near the writer" and the operation content display of placing the container in the form of a diagram. Also at this time, the write instruction button G23 is displayed in a dark color to indicate that this button cannot be pressed at this stage (it does not work even if it is pressed). , to prevent writing, that is, to prevent erroneous writing.

As an operation content display by words in the operation content display field G15 of the RFID label placement and container placement instruction screen G3, a message such as "Please place the container and lid" is displayed (that is, the operation shown in FIG. 8). (In this case, the same text as in the contents display field G15 is displayed. In this case, it becomes a container placement instruction screen.) When the container and the lid are placed, another screen is displayed, "Please place the RFID label near the writer." and an illustration of the position of the writing device 1 where the manual label should be placed (in this case, an RFID label placement instruction screen is displayed). .

Next, according to the display of the operation details, the separately prepared RFID label (manual recording medium) L2 is placed near the RFID reader/writer (writing means) 43 of the writing device 1 (write antenna range, that is, writable range). do. Note that when the RFID reader/writer 43 detects that the RFID label L2 exists within this writable range, the configuration may be such that the operation of the write instruction button G23 can be accepted (in this example, the write instruction button G23 The timing of enabling the operation by is when the mass values of the container and lid described below are weighed and stabilized, but it may be effective at the stage of this detection.Or this detection and the mass value of the container and lid described below It may be effective under the condition of both measurement and stabilization of ). The RFID label L2 is attached to a mount. As a method of arrangement, for example, as indicated by a dotted line arrow Y1 in FIG. As indicated by Y2, the RFID label L2 is inserted by hand from a label insertion hole separately provided at a predetermined position in the case 11A and placed in the vicinity of the writing means 43. A sheet replacement open/close door (cover) (not shown) that opens when a new sheet 53 is loaded on the roll R1 is opened, and the RFID label L2 is manually inserted from the opened portion and placed near the writing means 43. method (the sheet 53 may be removed when placing the RFID label L2 by hand). In the automatic mode, the write instruction button G23 does not accept operation when the cover is open, but in the manual mode, the write instruction button G23 may be operated even when the cover is open. Further, in the automatic mode, a display may be displayed in the operation content display field G15 or the like to call attention to the fact that the cover is open, or to prompt the user to close the cover.

In this state, the process proceeds to step 1-13, and the container brought by the customer and the lid of the container are placed on the weighing pan 13. FIG. The placement of the container and lid may be performed prior to placement of the RFID label L2 in the vicinity of the writing means 43 . When the measurement result of the mass is stabilized ("Y" in step 1-13 → "Y" in step 1-14), the mass value is displayed in the mass display field G17 as shown in the mass writing instruction screen G4 shown in FIG. is displayed (step 1-15). On the mass write instruction screen G4, in addition to the mass value, in the operation content display column G15, a diagram showing that the container and the lid are placed on the weighing pan 13 and "Would you like to write the mass of the container and the lid? ” is displayed, and the display of the write instruction button G23 is changed to a bright color to indicate that this button can be pressed.

Next, when the write instruction button G23 is pressed ("Y" in step 1-16), the mass value of the RFID label L2 stored in the RAM 37 or the like ( (including the mass value of the protective seal 140 described below) is recorded in the memory of the RFID label L2 by the RFID reader/writer 43 via wireless communication (step 1-17).

Next, the written RFID label L2 is taken out (step 1-18), and if the opening/closing door for sheet replacement is open at this time, it is closed. This completes the above series of write processing.

Next, in order to return to the original automatic mode, the sheet 53 is fed forward by a predetermined distance, that is, one pitch of the adjacent RFID labels L1 by the driving roller 56 and the driven roller 57 (step 1-19). As for the feed method, when the automatic mode switching button G11 is pressed, it may be configured to automatically feed in the forward direction. There are various methods such as a configuration in which the information is displayed in the display column G15. Then, returning to step 1-1, the container placement instruction screen G1 for the automatic mode shown in FIG. 8 is displayed on the touch panel 15 again.

In the above operation example, the automatic mode container placement instruction screen G1 shown in FIG. 8 was displayed on the touch panel 15 as the initial screen. An operation method selection screen to be selected is displayed as an initial screen, and when automatic operation is selected, the container placement instruction screen G1 for the automatic mode is displayed, and when manual operation is selected, the RFID label arrangement for the manual mode is displayed. and the container placement instruction screen G3 may be displayed.

The RFID label L1 or L2 in which the mass of the container and the lid is written by the automatic mode or the manual mode is attached to the bottom surface 131 of the container 130 and further covers the bottom surface of the RFID label L1 or L2, as shown in FIG. A protective seal 140 is attached as shown. The protective seal 140 has an outer dimension larger than that of the RFID label L1 or L2, and is formed into a shape that can cover the entire RFID label L1 or L2 and be waterproof. An RFID is attached to the surface of the protective seal 140, and handling precautions (for example, do not remove it, use in hot water or refrigerator is allowed, but use in range or oven is not allowed, etc.). etc., are printed. Note that the handling precautions and the like may be printed on the RFID label L1 or L2, and the protective seal 140 covering this may be composed of a transparent seal.

The customer possesses the container to which the RFID label L1 or L2 is attached as described above. Then, the customer brings the container to a store or the like, stores the desired product in the container, and the customer or the store clerk places the container on the weighing plate of the weighing and pricing apparatus 110 in the store. Then, the product is designated by the display/operation means (touch panel) 119 shown in FIG. At the same time, the transmitting/receiving means 125 of the weighing and pricing device 110 receives information from the RFID label L1 or L2 attached to the container 130 (in this example, the total weight of the container 130, the RFID label L1 or L2, and the protective seal 140 is the tare weight). mass value) is read by wireless communication. The CPU 111 of the weighing and pricing device 110 subtracts the tare mass value from the mass value detected by the mass detection unit 121 , and displays the calculated sales price and the like on the display/operation means 119 . Then, for example, a label displaying a bar code, product name, selling price, etc. is issued. Then, the customer attaches the label to the container, for example, moves to the POS device 105 together with other products, etc., and registers the product at the POS device 105 and makes a payment. The POS device 105 may be operated by a store clerk or by a customer.

As described above, the writing device 1 includes the weighing means 41 for weighing the container (item to be weighed) 130, the holding shaft (holding means) 55 for holding the roll R1 around which the sheet 53 is wound, and the A driving roller 56 and a driven roller 57 (conveying means) for conveying the sheet 53 fed out from the roll R1 held by the holding shaft 55 and the RFID label (recording medium) L1 attached to the conveyed sheet 53 are weighed. Since it is equipped with an RFID reader/writer (writing means) 43 for writing information based on the weighing result by the means 41 by wireless communication, there is no need to install the weighing device and the writing device as separate devices, and the cost of the device can be reduced. In addition, the apparatus can be made compact. That is, a single writing device 1 can execute the flow from weighing the container (item to be weighed) 130, writing the weighing data to the RFID, and issuing the RFID label L1.

Further, the driving roller 56 and the driven roller 57 (conveying means) used in the writing device 1 can reverse the sheet 53 so that the RFID label L1 moves out of the writable range based on a predetermined operation. In the case of manually writing to the RFID label L2 other than the RFID label L1 attached to the sheet 53, the RFID label L1 attached to the sheet 53 can be easily removed from the writable range, and the manual writing operation can be performed. It can be done smoothly.

Further, the RFID reader/writer (writing means) 43 used in the writing device 1 reads the mass value obtained by the weighing means 41 and the preset and stored mass values of the RFID label L1 (L2) and the protective seal 140. is written on the RFID label L1 (L2). By weighing, the mass value of the container 130 obtained by adding the mass values of the RFID label L1 (L2) and the protective seal 140 can be easily written.

By the way, in the writing device 1 shown in FIG. 6, a separate print head may be installed in the vicinity of the position where the RFID reader/writer 43 is installed to print on the RFID label L1. The printed contents may include, for example, the date and time of writing and the name of the store to be written.

In the above embodiment, the RFID reader/writer 43 writes the mass values of the container 130, the RFID label L1 (L2), and the protective seal 140 to the RFID label L1 (L2) as information based on the weighing result of the weighing means 41. Instead, the mass value is recorded in the store controller 100, the POS device 105, or the weighing and pricing device 110, and the identification information such as the identification number associated with the mass value is stored as information based on the weighing result of the weighing means 41. may be written to the RFID label L1 (L2). That is, the information to be written in the RFID label L1 (L2) is not limited to the measured mass value itself.

In the above embodiment, the mass values of the container 130, the RFID label L1 (L2), and the protective seal 140 are written on the RFID label L1 (L2) by placing the container 130 on the weighing pan 13 and weighing it. The mass values of the label L1 (L2) and the protective seal 140 were obtained by reading out the data stored in advance in the writing device 1. Instead, the container 130 and the RFID label L1 (L2) and the protective seal 140 may be placed directly to weigh and write. Also, instead of placing both the RFID label L1 (L2) and the protective seal 140 directly on the weighing pan 13, a weight of the combined mass of the RFID label L1 (L2) and the protective seal 140 may be placed and weighed.

In addition, in the writing device 1 according to the above-described embodiment, the operation content display field G15 of the container placement instruction screen G1 shown in FIG. If it is not included in the , it may be possible to display the operation contents such as "Please put the container with the lid off on the scale". Also, a display for selecting whether or not to weigh the lid may be provided. For example, display options such as "Do you want to weigh the lid as well as the container? [Yes] [No]", and press either [Yes] or [No] to select the presence or absence of the lid. good. Also, for example, the store decides in advance whether to weigh the lid or not, and displays either "Please place the container with the lid on" or "Please place the container without the lid". may be configured. Further, for example, when the write instruction button G23 is pressed, the "[with lid] [without lid]" button may be displayed to allow one to be selected, and then writing may be performed.

In order to distinguish between the weighing of both the lid and the container and the weighing of only the container, a flag for distinguishing between the two is stored in the RFID label L1 (L2), and weighed by the weighing and pricing device 110, the POS device 105, or the like. When performing pricing or product registration and sales, it may be possible to confirm whether to tare a container with a lid or to tare a container without a lid according to the flag. The label issued by the weighing and pricing device 110 and the settlement receipt issued by the POS device 105 may indicate whether the lid is present or not.

Further, for example, in the writing device 1 according to the above-described embodiment, if there are a plurality of types of RFID labels L1 (L2) and their mass values are different, each mass value is stored and registered in advance in the writing device 1, Any RFID label L1 (L2) is designated as necessary, and the mass value of the RFID label L1 (L2) is written. For example, in the writing device 1 according to the above embodiment, when the roll R1 is replaced or when the automatic mode is switched to the manual mode, the label weight setting screen G5 as shown in FIG. 14 is displayed to set the label weight. It may be configured so that That is, the label weight setting screen G5 has selection buttons G51 and G53 for selecting label A and label B, and either one can be selected. Also, the mass values of the mass value display portions G55 and G57 of the label A and the label B may be changed as appropriate.

In the above-described embodiment, the writing device 1 and the weighing and marking device 110 are configured as separate devices. be. In this case, the writing device 1 is also equipped with a function of printing means for printing labels.

Further, in the present invention, the object to be weighed is not limited to the container 130, and any object to be weighed can be used as long as it is necessary to write information based on the weighing result on a recording medium.

<<Summary of embodiment>>
[Technical field]
The present invention relates to a writing device for writing the mass of an object to be weighed onto a recording medium.
[Background technology]
2. Description of the Related Art Conventionally, as shown in Patent Document 1, for example, there is a weighing device for selling by weight that mounts an object to be weighed, such as various side dishes and various meats, on a scale, obtains the mass of the object, and sells the object. In the weighing device for selling by weight, when measuring the product mass, tare subtraction is performed to exclude the mass of the tare containing the product.
On the other hand, the customer side prepares a container as the container for the object to be weighed, weighs the mass of the container in advance using a weighing device for the container, and records the mass of the container using a writing device (for example, RFID), the recording medium is attached to the container, and when the container containing the product is placed on the scale of a weighing device for selling by weight, the container mass is automatically read and automatically tare. is being done.
With this configuration, the customer can bring the container and use it repeatedly, so the seller can reduce the number of containers and reduce costs, and the customer does not generate wasteful waste, which in turn saves the earth. It can contribute to the improvement of the environment.
[Prior art documents]
[Patent Literature]
[Patent Document 1] Japanese Unexamined Patent Publication No. 2004-163994 [Summary of the Invention]
[Problems to be solved by the invention]
However, in the case of the above-described writing device, a weighing device for weighing the container must be installed separately from the writing device, so there is a problem that not only is the cost of the device increased, but also a large installation area is required. .
SUMMARY OF THE INVENTION It is an object of the present invention to provide a writing apparatus which can reduce the cost of the apparatus and which can be made compact.

[Means to solve the problem]
The present invention comprises weighing means for weighing an object to be weighed, holding means for holding a roll around which a sheet is wound, conveying means for conveying the sheet let out from the roll held by the holding means, and A writing device for writing information based on the result of weighing by the weighing means by wireless communication onto a recording medium attached to a conveyed sheet.
Although there is an RFID as a recording medium, the present invention is not limited to this.
According to the present invention, since the weighing means is provided in addition to the writing means, weighing and writing can be performed by a single device, and the cost of the device can be reduced, and the size of the device can be reduced.

In addition to the features described above, the present invention is characterized in that the writing means can write information based on the weighing result on the recording medium located within a predetermined writable range on the sheet conveying path, and the conveying means includes: It is characterized in that the sheet is reversed so that the recording medium moves out of the writable range based on a predetermined operation.
According to the present invention, when information based on weighing results is manually written on a recording medium other than the recording medium attached to the sheet, the recording medium attached to the sheet can be removed from the writable range. The manual writing can be performed smoothly.

In addition to the features described above, the present invention provides information based on a mass value obtained by adding the mass value obtained by the weighing means and the preset and stored mass value of the recording medium. is written on the recording medium.
According to the present invention, the mass value obtained by adding the mass value of the recording medium to the mass value of the object to be weighed can be obtained by weighing only the object to be weighed without weighing both the object to be weighed and the recording medium by the weighing means. The ability to write value-based information makes weighing tasks easier.

In addition to the above characteristics, the present invention is characterized in that the write operation to the recording medium by the writing means is enabled on condition that the weighing result by the weighing means is stabilized.
According to the present invention, information based on accurate weighing results can be written to the recording medium.

Further, in addition to the above features, the present invention has a write instruction button for instructing the writing means to write information based on the weighing result of the weighing means, and when the weighing result of the weighing means is not stable, the write command button is provided. The writing instruction button does not accept the writing instruction operation, and the writing instruction button accepts the writing instruction operation when the weighing result by the weighing means is stable.
According to the present invention, information based on accurate weighing results can be written to the recording medium.

Further, in addition to the above features, the present invention provides an automatic mode in which information based on the weighing result by the weighing means is written to a recording medium attached to the sheet fed out from the roll, and information based on the weighing result by the weighing means, It is characterized by having mode selection means for selecting a manual mode for writing on a recording medium other than the recording medium attached to the sheet fed out from the roll.
According to the present invention, by selecting a mode, it becomes possible to record information based on the weighing result of the weighing means on a recording medium other than the recording medium attached to the sheet delivered from the roll.

A program for realizing the functions of the writing device 1 described above is recorded in a computer-readable recording medium, and the program recorded in the recording medium is read by the writing device 1 as a computer system and executed. Thus, the processing as the writing device 1 may be performed. Here, "loading and executing the program recorded on the recording medium into the computer system" includes installing the program in the computer system. The "computer system" here includes hardware such as an OS and peripheral devices. A "computer system" may also include a plurality of computer devices connected via a network including communication lines such as the Internet, WAN, LAN, and dedicated lines. The term "computer-readable recording medium" refers to portable media such as flexible discs, magneto-optical discs, ROMs and CD-ROMs, and storage devices such as hard discs incorporated in computer systems. Thus, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM. Recording media also include internal or external recording media accessible from the distribution server for distributing the program. The program code stored in the recording medium of the distribution server may be different from the program code in a format executable by the terminal device. That is, as long as it can be downloaded from the distribution server and installed in a form that can be executed on the terminal device, the form stored in the distribution server does not matter. It should be noted that the program may be divided into a plurality of parts, and the divided programs may be downloaded at different timings and then merged in the terminal device, or the distribution servers that distribute the divided programs may be different. In addition, "computer-readable recording medium" is a volatile memory (RAM) inside a computer system that acts as a server or client when the program is transmitted via a network, and retains the program for a certain period of time. It shall also include things. Further, the program may be for realizing part of the functions described above. Further, it may be a so-called difference file (difference program) that can realize the above functions by combining with a program already recorded in the computer system.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical ideas described in the claims, specification and drawings. It is possible. Any shape, structure, or material that is not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as it produces the action and effect of the present invention. For example, RFID generally refers to an IC tag using an IC, among them a passive type IC tag that does not contain a battery. Alternatively, an RFID using a circuit that does not use an IC may be used. Moreover, the embodiments shown in the above description and each drawing can be combined with each other as long as there is no contradiction in the purpose, configuration, and the like. In addition, even if only a part of the above description and the contents of each drawing can be independent embodiments, the embodiment of the present invention is one embodiment in which the above description and each drawing are combined. is not limited to

DESCRIPTION OF SYMBOLS 1... Writing device, L1... RFID (recording medium) label, 11... Main body part, 11A... Case, 13... Weighing plate, 15... Display and operation means (display means, touch panel), 17... Recording medium issuing port, 31... CPU (control unit) 33 Hard disk (storage unit) 35 ROM (storage unit) 37 RAM (storage unit) 41 Weighing means 43 RFID reader/writer (writing means) 47 Transmitting/receiving means 51, 52... Communication line 1A... Weighing system (merchandise data processing system) 100... Store controller 105... POS device 110... Weighing and pricing device 111... CPU (control unit) 113... Hard disk (storage unit) , 115...ROM (storage unit), 117...RAM (storage unit), 119...display/operation means (touch panel), 121...mass detector, 123...printing means, 125...transmitting/receiving means, 127...communication line, 43... RFID reader/writer (writing means), 53... Sheet, 55... Holding shaft (holding means), R1... Roll (RFID label roll or label roll), 56... Driving roller (conveying means), 57... Driven roller (conveying means ), 58... Sheet turning member 58a... Turning part 59... Sheet winding shaft 61... Label guide roller 65... Peel detection sensor G1... Container placement instruction screen G11... Automatic mode switching button G13... Manual mode switching button, G15... Operation content display field, G17... Mass display field, G19... Zero reset button, G21... Feed button, G23... Writing instruction button, G2... Mass writing instruction screen, G3... RFID label arrangement and container loading Placement instruction screen, L2... RFID label (manual recording medium), G4... Mass writing instruction screen, 130... Container, 131... Bottom surface, 140... Protective seal, G5... Label mass setting screen, G51, G53... Selection button, G55 , G57 . . . mass value display portion.

Claims (5)

Weighing means for weighing an object to be weighed;
holding means for holding the roll around which the sheet is wound;
a conveying means for conveying the sheet fed from the roll held by the holding means;
writing means for writing, by wireless communication, information based on the result of weighing by the weighing means onto a recording medium attached to the conveyed sheet;
A writing device with The writing means is capable of writing information based on the weighing result on the recording medium positioned within a predetermined writable range on the sheet conveying path,
2. The writing apparatus according to claim 1, wherein said conveying means reversely feeds said sheet so that said recording medium moves out of said writable range based on a predetermined operation. The writing means writes information based on a mass value obtained by adding the mass value obtained by the weighing means and a preset and stored mass value of the recording medium to the recording medium. 3. The writing device according to claim 1 or 2. 4. The writing apparatus according to claim 1, wherein the writing operation to the recording medium by the writing means is enabled on condition that the weighing result by the weighing means is stabilized. a write instruction button for instructing the writing means to write information based on the weighing result of the weighing means;
The write instruction button does not accept the operation of the write instruction when the weighing result by the weighing means is not stable,
5. The writing device according to claim 1, wherein said write instruction button accepts said write instruction operation when the weighing result by said weighing means is stable.

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