JP2009000233A - Article management apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article management apparatus capable of accurately recognizing a status of use of even liquid chemicals or rare chemical substances put in a container, small articles such as tablets or expensive noble metals and performing strict management through figures therefor. <P>SOLUTION: The article management apparatus 1 is structured in such a manner that an operation part 4, a printer 5, a magnetic card read part 6, unlocking lamps 7a and 7b and a buzzer 30 are installed on the upper surface of a casing 3 stored with two drawers 2, an article housing part 8, an electronic balance 9, an electronic lock 10, a motor 11 and a sensor 31 are housed inside the casing 3, and the printer 5, the magnetic card read part 6, the unlocking lamps 7a and 7b, the electronic balance 9, the electronic lock 10, the motor 11, the buzzer 30, and the sensor 31 are connected to a control part 13 incorporated in the operation part 4 by signal lines 12a-12h. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an article management apparatus for storing chemicals and chemical substances used in medical or research sites, and in particular, an article capable of accurately grasping the use situation and performing strict counting management. It relates to a management device.

Drugs such as narcotics, muscle relaxants, psychotropic drugs, and chemicals such as sulfuric acid and hydrochloric acid have a great effect on the human body if misused. For example, by storing them in a lockable storage, etc. Use is restricted. Similarly, expensive noble metals such as gold, silver, and platinum, and rare chemical substances must be stored in a storage and managed strictly.
However, conventionally, the management of these articles is cumbersome and time consuming, and it has not been easy to strictly manage them. As a result, unauthorized take-out was allowed, causing theft and loss. Therefore, in order to solve such problems, at present, research and development have been actively conducted on storages for easily and strictly managing articles. A number of inventions and devices have already been disclosed.

For example, Patent Document 1 discloses an invention relating to an article management system capable of detecting unauthorized take-out quickly and reliably by detecting the passage of an unauthorized wireless tag under the name “article management system”.
The invention disclosed in Patent Document 1 records a space in which an article storage shelf is installed, a locking unit that locks a door of an entrance / exit of the space, a unit that measures the amount of use of the article, and records the amount of use. Inventory management means; wireless tag on which article information is recorded and attached to the article or container; information recording medium on which personal authentication information is recorded; means for reading information on the wireless tag and the information recording medium; and article information And an information writing means for writing out carry-out permission information regarding whether or not to carry out the reading to the wireless tag after reading.
According to such a structure, a history is recorded every time an article is used or taken out. Further, the door of the entrance / exit of the space where the article is stored is locked or unlocked based on the information read from the wireless tag and the information recording medium. This enables strict article management based on the personal authentication information. Therefore, illegal take-out can be effectively prevented.

Next, Patent Document 2 discloses an invention related to a system that supports the grasping operation of the usage status of chemicals under the name of “medicine management system”.
The invention disclosed in Patent Document 2 includes a tray for setting medicines, a medicine cart carrying the tray, an imaging device for photographing the medicine set on the tray, and image data obtained by the imaging device. And a chemical counting device for measuring chemicals based on the above.
According to such a structure, since the score of the medicine is measured by image analysis of the medicine set on the tray, it is possible to perform measurement even when the medicine is transported. Therefore, it is possible to easily and accurately grasp the usage status of the medicine without hindering the flow at the site.

Furthermore, Patent Document 3 discloses a device related to an apparatus that appropriately manages and manages the amount of medicine that has no tangible property under the name “medicine management apparatus”.
The medicine management apparatus, which is a device disclosed in Patent Document 3, includes a key storage section for storing and storing medicine and a storage key, a medicine storage section for storing and storing bottled medicine, and a medicine. An electronic balance storage unit that stores an electronic balance for measuring the weight of the instrument, a key storage unit, a chemical storage unit, a management control unit that manages and controls the electronic balance storage unit, a lock mechanism, and a detection sensor for chemicals, keys, etc. And an open / close sensor for detecting the open / closed state of the key storage unit and the chemical storage unit.
According to such a structure, the management control unit controls the lock mechanism based on the input person authentication data, and unlocks or locks the storage unit such as a key or the medicine storage unit. In addition, a history of drug weight data is recorded together with data detected by the detection sensor and the open / close sensor. Thereby, even if it is a liquid medicine etc. which cannot be managed by the number, it is possible to appropriately grasp and manage the remaining amount and the amount of use.

Japanese Patent Laid-Open No. 2005-216059 JP 2001-198191 A Utility Model Registration No. 3125366

  However, in the invention disclosed in Patent Document 1 which is the above-described prior art, the room occupant must transfer the article from the storage container to the small container and set it in the weighing device when measuring the weight of the article. . That is, it is necessary to manually perform the work for measuring the weight of the article. Therefore, a measurement error is likely to occur, and there is a risk that the article may be lost due to a work mistake. Furthermore, since the equipment is large, there are problems that the installation cost is restricted while the installation location is restricted.

  Further, the invention disclosed in Patent Document 2 is suitable for measuring an article having a large size and a small number, but it cannot accurately measure the number and the remaining amount of a large number of tablets and liquid chemicals, for example. There was a problem. In addition, there is a problem that it is difficult to prevent unauthorized take-out because it is not configured to restrict users.

  Although the device disclosed in Patent Document 3 is configured to measure the remaining amount of medicines in bottles, it is difficult to accurately measure the amount of change when the amount used is small. There was a problem. In addition, there is a problem that the amount of use cannot be accurately grasped even for articles that are lightweight and have a large number of articles such as tablets.

  The present invention has been made in response to such a conventional situation, and even if it is a liquid chemical or a rare chemical substance contained in a container, a small article such as a tablet, or an expensive noble metal, the usage situation can be accurately determined. An object of the present invention is to provide an article management apparatus capable of grasping and performing strict counting management.

In order to achieve the above object, an article management apparatus according to the first aspect of the present invention provides a casing for storing a drawer in which an article is stored, a measuring means having a weighing unit on the upper surface, and an article from a measurement result by the measuring means. Installed in a calculation unit for calculating the weight of the battery, a memory unit for storing calculation results and / or measurement results by the calculation unit, a display unit for displaying the measurement results and / or calculation results, and a weighing unit of the measuring means. Controls the operation of the article storage unit, the holder installed in the drawer so as to be movable up and down, the drive means for moving the holder up and down, the measurement means, the calculation unit, the memory unit, the display unit and the drive unit A control unit that lifts the article storage unit away from the weighing unit when the measurement means is not used, and when the measurement unit is used, the holder releases the article storage unit and mounts it on the measurement unit. Characterized by placing A.
In the article management apparatus having such a structure, since the article storage unit is not placed on the weighing unit except when the measurement unit is used, an excessive load acts on the measurement unit, or the measurement accuracy decreases. There is no fear of Further, when the measuring means is used, since the holder is not in contact with the article storage portion, a measurement error hardly occurs.

The invention described in claim 2 is the article management apparatus according to claim 1, further comprising a receiver formed on the upper side surface of the article storage portion with the inclined surface facing outward and downward, and the holder includes the article storage portion. It has an opening that can be inserted in a non-contact manner, and the article storage portion arranged in the opening does not contact the holder, and only the inclined surface of the holder is held by the upper edge of the opening. It is what.
The article management apparatus having such a structure has an effect that the article storage unit moves by its own weight so as not to contact the holder. Therefore, if the positional relationship between the holder and the article storage unit is set in advance so that the holder does not come into contact with the article storage unit when the article storage unit is placed on the weighing unit of the measuring means, for example, on the weighing unit Even when the article storage unit moves, the positions of the article storage unit and the holding tool are automatically restored by holding them again with the holding tool.

A third aspect of the present invention is the article management apparatus according to the first or second aspect, further comprising a lock mechanism that is attached to the housing and locks or unlocks the drawer, and the control unit is used in advance. The operation of the lock mechanism is controlled based on the personal authentication information of the person.
The article management apparatus having such a structure has an effect that the opening / closing of the drawer is restricted according to the user's usage qualification.

According to a fourth aspect of the present invention, in the article management apparatus according to the third aspect of the present invention, there is provided an informing means for notifying the user by light or sound that the drawer is locked or unlocked.
The article management device having such a structure has an effect that the locked state or the unlocked state of the drawer can be easily confirmed visually or audibly.

The invention described in claim 5 is the article management apparatus according to claim 3 or 4, further comprising an information reading unit that magnetically, electrically, or optically reads the personal authentication information of the user. To do.
The article management apparatus having such a structure has an effect that the personal authentication information of the user is accurately input in a short time.

A sixth aspect of the present invention is the article management apparatus according to any one of the first to fifth aspects, further comprising: a sensor that detects an impact applied to the housing; and a timing unit; The date and time obtained from the time measuring unit when the impact is detected is stored.
According to such a structure, when an impact occurs in the article management apparatus due to movement or the like, the history is automatically recorded.

  As described above, in the article management apparatus according to claim 1 of the present invention, failure can be prevented and reliability can be improved. Further, since the weight of the article can be accurately measured, for example, the weight change can be accurately calculated for liquid chemicals or small tablets that are used in small amounts in a container. Furthermore, by displaying the weight of the article stored in the memory unit in time series, it is possible to easily grasp the history regarding the storage and removal of the article. Therefore, it is possible to perform strict management even when the amount of change in inventory items is small.

  In the article management apparatus according to claim 2 of the present invention, even when the article storage unit moves after being placed on the weighing unit of the measuring means, the article storage unit is placed again at a desired position on the weighing unit. Can do. Therefore, it is possible to easily and constantly maintain the measurement accuracy of the measurement means in a high state. This increases the reliability of the article management apparatus.

  In the article management apparatus according to the third aspect of the present invention, it is possible to prevent unauthorized taking-out of articles by a user who is not qualified for use.

  If the user accidentally opens the locked drawer during the operation of the measuring means, a measurement error occurs due to the impact. However, in the article management apparatus according to claim 4 of the present invention, the user can easily recognize that the drawer is locked. Therefore, it is possible to prevent a decrease in measurement accuracy due to the above-described reason.

  In the article management apparatus according to claim 5 of the present invention, the user's personal authentication information can be easily input, and the convenience of the apparatus is improved.

  In the article management device according to the sixth aspect of the present invention, by examining the record of the date and time when the impact occurred, which is stored in the memory unit, illegal take-out of the article management device itself or destruction of the article management device in the past. You can easily know if there was. Further, by adopting a configuration in which an alarm is issued when an impact is detected by the sensor unit, it is possible to prevent illegal take-out of the article management apparatus itself and destruction of the article management apparatus.

  An article management apparatus according to the best mode of the present invention will be described with reference to FIGS.

FIG. 1A is an external perspective view of an article management apparatus according to an embodiment of the present invention, and FIG. 1B is a schematic diagram showing the configuration of FIG. FIGS. 2A to 2C are perspective views showing the internal structure of the drawer constituting the article management apparatus of this embodiment.
As shown in FIGS. 1A and 1B, the article management apparatus 1 of this embodiment has a structure in which two drawers 2 are stored in a substantially rectangular parallelepiped casing 3. An operation unit 4, a printer 5, a magnetic card reading unit 6, unlocking lamps 7a and 7b, and a buzzer 30 are installed on the upper surface of the housing 3, and a holder 28 is attached to the upper side of the housing 3. An article storage unit 8, an electronic balance 9 having a weighing unit 9a on the upper surface, an electronic lock 10, a motor 11, and a sensor 31 are stored. Although the electronic balance 9 is used in this embodiment, the measuring means is not limited to this and can be changed as appropriate. However, it is necessary to have a structure in which the measurement object is placed on the upper surface. In the present embodiment, the number of drawers 2 is two, but the number is not limited to this. For example, the number of drawers 2 may be one or three or more.

The printer 5, the magnetic card reading unit 6, the unlocking lamps 7a and 7b, the electronic balance 9, the electronic lock 10, the motor 11, the buzzer 30, and the sensor 31 are connected to the control unit 13 built in the operation unit 4 by signal lines 12a to 12h. The operation of the printer 5, unlocking lamps 7 a and 7 b, electronic balance 9, electronic lock 10, motor 11 and buzzer 30 is controlled by the control unit 13. The operation unit 4 includes a calculation unit 14, a memory unit 15, and a time measurement unit 32, and the result calculated by the calculation unit 14 based on the measurement value of the electronic balance 9 is stored together with the date and time obtained from the time measurement unit 32. 15 is stored as data. Further, the liquid crystal screen 4a provided on the front surface of the operation unit 4 is a so-called touch panel, and data and operation commands can be directly input from the screen, and data stored in the memory unit 15 can be input on the liquid crystal screen 4a. It is configured so that it can be displayed. That is, the liquid crystal screen 4 a of the operation unit 4 functions as the input unit 16 and the display unit 17.
The sensor 31 is a so-called acceleration sensor that detects an impact applied to the housing 3 and is set in advance to detect an impact of a desired magnitude or more. In addition, the installation location of the sensor 31 is not limited to the case shown in FIG.1 (b), It can change suitably.
Here, the broken line in FIG. 1B schematically shows the bottom plate 2a of the drawer 2 on which the electronic balance 9 and the motor 11 are placed, and the housing 3. 1B shows one set of the article storage unit 8 and the electronic balance 9, but in the article management apparatus 1 of the present embodiment as described later, four article storage units 8 are provided. Each electronic balance 9 is installed.

As shown in FIG. 2A, square members 18 are respectively attached to the inner surfaces of the front plate 2b and the rear plate 2c of the drawer 2 so as to be parallel to the bottom plate 2a. On the upper surface of the square member 18, a rectangular flat plate-shaped holder 19 provided with four rectangular openings 20 is placed. That is, the holder 19 is slidable upward from the square member 18 along the front plate 2b, the rear plate 2c, and the side plate 2d of the drawer 2.
As shown in FIG. 2B, the article storage portions 8 are respectively installed in the four openings 20 of the holder 19. The article storage unit 8 includes four side surfaces and one bottom surface, and a bar-shaped receiving member 28 having a right-angled triangular cross section is disposed on the upper side of each side surface with the inclined surface 28a (see FIG. 4 described later) outward and downward. It is attached all around. Further, the outer shape of the article storage unit 8 is smaller than that of the opening 20, and the outer shape of the upper end portion of the receiver 28 of the article storage unit 8 is larger than that of the opening 20. Therefore, the article storage unit 8 is held by the holding tool 19 in a state where only the inclined surface 28a (see FIG. 4 described later) of the receiver 28 is in contact with the upper edge 20a (see FIG. 4 described later) of the opening 20. Yes.
The number of openings 20 is not limited to four, and may be three or less, for example, or five or more. However, in that case, the article storage unit 8 needs to be installed in each opening 20. Further, the outer shape and the opening 20 of the article storage unit 8 are not limited to a rectangular shape, and may be a circular shape. Further, the shapes and sizes of the opening 20 and the article storage unit 8 are not necessarily unified. That is, the article storage unit 8 and the opening 20 can be made to have different shapes and sizes depending on the articles to be stored.

FIG. 2C is a diagram in which the front plate 2b, the square member 18 and the holding tool 19 are not shown in FIG. 2A, and shows the configuration of the driving means for moving the holding tool 19 up and down. As shown in this figure, both ends of the rotary shaft 21 are rotatably attached to the side plate 2d so as to be parallel to the bottom plate 2a. Cams 24 are attached to the rotating shaft 21 in the vicinity of both ends, and a gear 22 that meshes with the gear 23 of the motor 11 is attached between the cams 24, 24. Thereby, the rotational driving force of the motor 11 is transmitted to the rotary shaft 21 via the gear 23 and the gear 22. Therefore, when the motor 11 rotates, the cams 24 and 24 rotate together with the rotating shaft 21.
Further, square members 25 are respectively attached to the two side plates 2d of the drawer 2 via attachments 26, 26. The fixture 26 is a strip-shaped plate member, one end of which is pivotally supported by the side plate 2 d and the other end is pivotally supported by the end portion of the square member 25. The lower surface 25 a of the square member 25 is in contact with the cam 24. Therefore, when the motor 11 is rotated, the cam 24 rotates, and the square member 25 moves up and down while swinging in the horizontal direction. Accordingly, the holder 19 also moves up and down. A spring 27 is attached to the end of the square member 25 on the rear plate 2c side. Thereby, when the square member 25 moves in a direction away from the rear plate 2c, a force to pull back to the rear plate 2c acts on the square member 25.
As described above, the motor 11, the gear 23, the rotating shaft 21, the gear 22, the cam 24, the square member 25, the fixture 26 and the spring 27 constitute drive means for moving the holder 19 up and down.

Operations of the holder 19 and the article storage unit 8 will be described with reference to FIGS. 3 and 4.
3 (a) and 3 (b) are cross-sectional views taken along line XX in FIG. 2 (a), and FIGS. 4 (a) to 4 (c) are diagrams for explaining the operation of the holder and the article storage unit. It is a schematic diagram. In addition, about the component shown in FIG. 1 or FIG. 2, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
As shown in FIG. 3A, when the lower surface 25 a of the square member 25 is in contact with the curved surface 24 a of the cam 24, the holder 19 is lifted upward by the square member 18. Since the spring 27 is stretched, a tensile force acts in the direction indicated by the arrow B on the end of the square member 25 on the rear plate 2c side. In the case of FIG. 3A, the article storage unit 8 held by the holder 19 is lifted from the weighing unit 9a of the electronic balance 9 as shown in FIG. In this case, since only the inclined surface 28a of the holder 28 is held by the upper edge 20a of the holder 19, the article storage unit 8 always tries to move to the center of the opening 20 by its own weight.
From this state, when the cam 24 is rotated in the direction indicated by the arrow A until the flat surface 24b of the cam 24 faces upward, the fixture 26 is indicated by a broken line due to the tensile force in the direction of the arrow B acting on the end of the square member 25. It rotates in the direction of arrow C to the position shown, and the square bar 25 moves in the direction of arrow D to the position shown by the broken line.

FIG. 3B shows a state in which the square member 25 and the fixture 26 have moved to the position indicated by the broken line in FIG. In this case, the lower surface 25 a of the square member 25 contacts the flat surface 24 b of the cam 24, and the upper surface 25 b of the square member 25 is separated from the lower surface 19 a of the holder 19. Thereby, the holder 19 is placed on the upper surface of the square member 18. In the case of FIG. 3B, the upper edge 20a of the holder 19 is separated from the inclined surface 28a of the receiver 28, and the article storage portion 8 is placed on the weighing portion 9a of the electronic balance 9 as shown in FIG. Is done. As described above, the article storage unit 8 is located at the center of the opening 20, and the side surface of the article storage unit 8 is not in contact with the inner surface of the opening 20 of the holder 19. Accordingly, the weight of the article storage unit 8 is accurately measured by the electronic balance 9 without being affected by the holder 19.
It is assumed that the article storage unit 8 moves for some reason after the article storage unit 8 is placed on the weighing unit 9a of the electronic balance 9, for example, as shown in FIG. 4C. In this case, a measurement error occurs because the side surface of the article storage unit 8 is in contact with the inner surface of the opening 20 of the holder 19. However, this problem can be easily solved by setting the state of FIG. That is, the cam 24 is rotated in the direction indicated by the arrow E until the flat surface 24b of the cam 24 faces sideways from the state of FIG. As a result, the curved surface 24a of the cam 24 comes into contact with the lower surface 25a, the square member 25 is pushed up in the direction of arrow G, the fixture 26 rotates in the direction of arrow F, and the spring 27 is stretched in the direction of arrow H. It is. As a result, the holder 19 is pushed up by the square member 25 and finally becomes the state shown in FIG. The article storage unit 8 moves to the approximate center of the opening 20 due to its own weight. In this way, the positional relationship between the article storage unit 8 and the weighing unit 9a is easily restored. That is, although the article management apparatus 1 of the present embodiment has a simple structure, it has an excellent effect that the positional relationship between the two is automatically adjusted so that the holder 19 does not contact the article storage unit 8.

  The vertical section of the receiving tool 28 is not limited to a right triangle as shown. That is, although it is desirable from the viewpoint of the above-mentioned action that the contour line appearing in the cross section is an inclined surface represented by a substantially straight line, even if the contour line draws a convex curve in or out, What is necessary is just to be able to exhibit the effect | action that the goods accommodating part 8 moves to the approximate center of the opening part 20 with dead weight. If the receiving device 28 is attached to the upper side surface of the article storage unit 8 so that such an inclined surface faces outward and downward, the same operations and effects as in the present embodiment are exhibited. Further, the receiver 28 does not necessarily have to be attached over the entire circumference of the upper side surface of the article storage unit 8. For example, the receiver 28 is attached to each of two opposing side surfaces of the article storage unit 8 so as to be symmetrical. You can also. However, in this case, when the article storage unit 8 is displaced toward the side surface to which the receiving device 28 is not attached at the opening 20, the position cannot be restored. Therefore, it is not necessary to attach the receiver 28 over the entire circumference of the side surface of the article storage unit 8, but it is desirable to attach the receiver 28 to at least all four side surfaces. Furthermore, the inner surface of the opening 20 may be an inclined surface substantially parallel to the inclined surface 28 a of the receiving tool 28. In this case, when the holder 19 holds the article storage unit 8, the inner surface of the opening 20 comes into contact with the inclined surface 28 a of the receiver 28, so that the article storage unit 8 is compared with the case of this embodiment. The holding state is stable. Further, the inner surface of the opening 20 may be a substantially spherical surface instead of the inclined surface. Also in this case, since the inner surface of the opening 20 comes into contact with the inclined surface 28a of the receiving tool 28, the holding state of the article storage unit 8 is more stable than in the case of the present embodiment. Note that, regardless of whether the inner surface of the opening 20 is an inclined surface or a substantially spherical surface, the action of moving the article storage portion 8 by its own weight so as to be located at the approximate center of the opening 20 and the accompanying effect are as follows. This is demonstrated in the same manner as in the embodiment.

Next, a lock mechanism for locking the drawer 2 will be described with reference to FIG.
Fig.5 (a) is a side view of the article | item management apparatus of a present Example, (b) is a cross-sectional view which shows the lower half of the same figure (a). The components shown in FIGS. 1 to 4 are denoted by the same reference numerals, and the description thereof is omitted.
As shown in FIGS. 5A and 5B, an L-shaped metal fitting 29 having an opening 29a is attached to the outer surface of the rear plate 2c of the drawer 2, and an L-shaped metal fitting is attached to the inner surface of the rear plate 3a of the housing 3. An electronic lock 10 having a substantially cylindrical slider 10a that can be inserted through the opening 29a of the 29 is attached. That is, the electronic lock 10 and the L-shaped metal fitting 29 constitute a lock mechanism.
The slider 10a of the electronic lock 10 can be moved in and out in the direction of arrow I in accordance with a command signal from the control unit 13. For example, the slider 10a can be moved into the opening 29a of the L-shaped bracket 29 in a state where the drawer 2 is completely stored in the housing 3. When inserted through the drawer 2, the drawer 2 is locked and cannot be pulled out. When the slider 10a is retracted from the opening 29a of the L-shaped metal fitting 29, the drawer 2 is unlocked and can be pulled out. When the drawer 2 is unlocked, the unlocking lamps 7a and 7b are turned on and the buzzer 30 sounds for a predetermined time. That is, when the upper drawer 2 is unlocked, the unlocking lamp 7a is lit, and when the lower drawer 2 is unlocked, the unlocking lamp 7b is lit. And when drawer 2 is locked, it goes out. Thus, the unlocking lamps 7a and 7b and the buzzer 30 constitute notifying means for notifying the user of the unlocking and locking of the drawer 2 by light and sound. That is, the user of the article management apparatus 1 can easily confirm the unlocking and locking of the drawer 2 visually and audibly.
In this embodiment, the metal fitting constituting the lock mechanism together with the electronic lock 10 is the L-shaped metal fitting 29. However, if the opening through which the slider 10a can be inserted is provided, the shape of the metal fitting is not necessarily L-shaped. Not necessary. Moreover, the attachment location and the number of the electronic lock 10 and the L-shaped metal fitting 29 are not limited to the case shown in the present embodiment, and can be appropriately changed. Further, when the drawer 2 is unlocked, the unlocking lamps 7a and 7b are turned on and the buzzer 30 is not sounded. When the drawer 2 is locked, the unlocking lamps 7a and 7b are lighted and the buzzer is sounded. It can also be configured. Further, the buzzer 30 may continue to sound while the unlocking lamps 7a and 7b are lit. Furthermore, the unlocking lamps 7a and 7b and the buzzer 30 do not necessarily have to be installed, and only one of them may be installed.

Further, the operation of the article management apparatus 1 will be described with reference to FIG.
FIG. 6 is a block diagram showing the configuration of the article management apparatus of the present embodiment. FIG. 7 is a flowchart showing the operation procedure of the article management apparatus of this embodiment. The components shown in FIGS. 1 to 5 are denoted by the same reference numerals, and the description thereof is omitted.
When the user brings the magnetic card into contact with the magnetic card reading unit 6, the data 33a related to the personal authentication information recorded on the magnetic card is read by the magnetic card reading unit 6 (step S1 in FIG. 7) and sent to the control unit 13. It is done. The control unit 13 determines the use qualification of the user based on the data 33a. When the control unit 13 determines that there is a usage qualification, the control unit 13 sends a command signal 34 a to the display unit 17. As a result, the process acceptance screen is displayed on the liquid crystal screen 4 a functioning as the display unit 17.

  Next, one of the processes is selected on the screen from the list of processes displayed on the liquid crystal screen 4a. Data 33b related to the process selected on the liquid crystal screen 4a is sent from the input unit 16 (liquid crystal screen 4a) to the control unit 13, and a predetermined process is started (step S2 in FIG. 7). It should be noted that data 33c (article information such as the article name and number of articles) relating to the newly received goods, data 33d relating to the user (personal authentication information such as the user's name, affiliation, and authentication code) or data 33e relating to the article storage unit 8. When (identification number, weight, etc.) is input from the input unit 16, these data are sent to the memory unit 15 via the control unit 13. The memory unit 15 stores these data in accordance with the command signal 34b sent from the control unit 13 (step S3 in FIG. 7). When the “article registration” process is selected on the liquid crystal screen 4a, the processes of steps S6 to S16 described later are performed. That is, according to the command signal 34 c of the control unit 13, the calculation unit 14 determines the per item from the data 33 f measured by the electronic balance 9 based on the weight of the article storage unit 8 and the number of articles stored in the memory unit 15. The weight of is calculated. The calculation result is stored in the memory unit 15 as data 33c related to the article.

When the “data display” process is selected on the liquid crystal screen 4a, the liquid crystal screen 4a displays the data 33c to 33e stored in the memory unit 15 as the display unit 17 (step S4 in FIG. 7). When the "data printing" process is selected on the liquid crystal screen 4a, the printer 5 prints data 33c to 33e according to the command signal 34d of the control unit 13 (step S5 in FIG. 7). At this time, if “end processing” is selected on the liquid crystal screen 4a, the processing ends without performing steps S6 to S17 (step S18 in FIG. 7).
On the other hand, when the process of “entry or exit of goods” is selected on the liquid crystal screen 4a, the electronic lock 10 unlocks the drawer 2 according to the command signal 34e from the control unit 13 (step S6 in FIG. 7). At this time, the control unit 13 sends a command signal 34 f to the notification unit including the unlocking lamps 7 a and 7 b and the buzzer 30. Accordingly, the corresponding one of the unlocking lamps 7a and 7b is turned on and the buzzer 30 sounds (step S7 in FIG. 7). The transmission of the command signal 34f by the control unit 13 is preferably performed when the unlocking signal is generated from the electronic lock 10 when the electronic lock 10 is unlocked, and is received by the control unit 13; For example, the command signal 34e may be transmitted simultaneously.
The user opens the unlocked drawer 2 and stores (entries) or takes out (unloads) the article. Then, after closing the drawer 2 and inputting from the liquid crystal screen 4a that the entry or exit operation has been completed, the electronic lock 10 locks the drawer 2 according to the command signal 34e from the control unit 13 (FIG. 7). Step S8). At this time, the control unit 13 sends a command signal 34f to the notification unit, and turns off the corresponding one of the unlocking lamps 7a and 7b (step S9 in FIG. 7). It is desirable that the command signal 34f is transmitted by generating a lock signal from the electronic lock 10 when the electronic lock 10 is locked and receiving it by the control unit 13. You may make it transmit simultaneously with transmission.

The electronic balance 9 performs zero point adjustment according to the command signal 34g from the control unit 13 (step S10 in FIG. 7). Next, the control unit 13 sends a command signal 34 h to the motor 11 to rotate the motor 11. As a result, the driving means is driven to lower the holder 19 (step S11 in FIG. 7), and the article storage unit 8 is set in the weighing unit 9a of the electronic balance 9. Thereafter, the electronic balance 9 starts measuring the article storage unit 8 in accordance with the command signal 34g from the control unit 13 (step S12 in FIG. 7). The control unit 13 that has received the data 33 f regarding the weight of the article storage unit 8 from the electronic balance 9 sends a command signal 34 h to the motor 11 to rotate the motor 11. As a result, the driving means is driven and the holder 19 is raised (step S13 in FIG. 7), so that the article storage unit 8 is separated from the weighing unit 9a of the electronic balance 9. After a sufficient time has elapsed for the lifting of the holder 19, the control unit 13 sends the command signal 34 c, data 33 c and 33 e, and data 33 f measured by the electronic balance 9 to the calculation unit 14. The calculation unit 14 calculates the number of articles stored in the article storage unit 8 from the data 33c and 33e stored in the memory unit 15 in advance and the data 33f (step S14 in FIG. 7). The calculation result by the calculation unit 14 is sent to the control unit 13 as data 33g. The control unit 13 sends the data 33g together with the command signal 34a to the display unit 17 to display the calculation result by the calculation unit 14 (step S15 in FIG. 7). If it is considered that there is an error in the calculation result of the calculation unit 14, the user can select the “re-measurement” process on the liquid crystal screen 4a. In this case, the processes in steps S10 to S15 in FIG. 7 are executed again.
If there is no problem in the calculation result, the “data storage” process is selected on the liquid crystal screen 4a, and the calculation result is stored in the memory unit 15 in the same manner as in step S3 in FIG. 7 step S16). When the “data printing” process is selected on the liquid crystal screen 4a, the calculation result is printed by the printer 5 in the same manner as in step S5 in FIG. 7 (step S17 in FIG. 7). Then, when “end processing” is selected on the liquid crystal screen 4a, the processing ends (step S18 in FIG. 7).
When the sensor 31 detects that an impact exceeding a desired size has occurred in the housing 3, the detected data 33 h is sent to the control unit 13. Upon receiving the data 33h, the control unit 13 obtains data 33i relating to the date and time from the time measuring unit 32, and sends these data to the memory unit 15. Note that the date and time data 33i obtained from the time measuring unit 32 is stored together with the data 33c, the data 33d about the user, and the data 33e about the article storage unit 8 when they are stored in the memory unit 15. In other words, the entry / exit of the article and the history of the user are stored together with the date and time when the article management apparatus 1 is used.

  In the present embodiment, the command signal and data are exchanged between the control unit 13 and other components using the same signal line. However, the present invention is not limited to this. For example, data is sent. A signal line and a signal line for sending a command signal may be provided separately. Further, the operation of the article management apparatus 1 is not limited to the case shown in FIG. 7 and can be changed as appropriate. For example, instead of enabling the processing acceptance in step S2 after reading the personal authentication information recorded on the magnetic card by the magnetic card reading unit 6 in step S1, the input unit 16 can be operated and input in step S1. A configuration may be adopted in which the personal authentication information is manually input to the unit 16 and the process proceeds to step S2. In this case, it is not necessary to install the magnetic card reading unit 6. In this embodiment, a portable storage medium is used as a magnetic card, and the magnetic card reading unit 6 is used as an information reading unit for reading personal authentication information of a user recorded on the magnetic card. It is not necessarily limited to this. For example, the information reading unit may read the personal authentication information from an IC card or a barcode electrically or optically. It is also possible to read the user's physical features such as fingerprints and irises in the eyes as personal authentication information.

  In the article management apparatus 1 having the above structure, when the electronic balance 9 is not used, the article storage unit 8 is held by the holder 19 in a state where the article storage unit 8 is not in contact with the weighing unit 9a. Accordingly, it is possible to prevent the electronic balance 9 from being damaged due to an unexpected force applied to the weighing unit 9a via the article storage unit 8. Moreover, if the measuring object is always placed on the weighing unit 9a, there is a very high possibility that the measurement accuracy will be lowered even if the electronic balance 9 is not damaged. However, such a problem does not occur in the article management apparatus 1 of the present embodiment. In addition, since the positional relationship between the article storage unit 8 and the holder 19 is automatically restored, the holder 19 does not come into contact with the article storage unit 8 when the article storage unit 8 is placed on the weighing unit 9a. If the positional relationship between the two is set in advance, the positional relationship is always maintained. That is, the problem of a decrease in measurement accuracy due to the holder 19 coming into contact with the article storage unit 8 does not occur. Further, when the article management apparatus 1 is moved or the like, an impact exceeding a preset value is applied to the housing 3, and when the sensor 31 detects the impact, the date and time is recorded in the memory unit 15.

  As described above, in the article management apparatus 1 according to the present embodiment, since the electronic balance 9 is unlikely to fail and the measurement accuracy is not lowered, the weight of the article can be stably measured with high accuracy. Therefore, it is possible to accurately calculate the weight change of liquid chemicals or small tablets that are used in small amounts in a container. In addition, since the weight of the measured article is stored in the memory unit 15, by displaying this weight data in time series on the display unit 17, it is possible to easily grasp the history of storing and taking out the article. It is possible. Therefore, even when the amount of change in inventory items is small, it is possible to strictly manage. Furthermore, since the personal authentication information of the user is accurately input in a short time by the magnetic card reading unit 6, the input operation of the personal authentication information becomes easy. This improves the convenience of the apparatus. And since the date and time when the impact exceeding the predetermined magnitude has been recorded in the memory unit 15, by checking the history, the article management device 1 has been likely to be taken out illegally in the past, or It is possible to easily know whether the article management device 1 has been destroyed. In addition, when an impact is detected by the sensor 31, an alarm is generated by light, sound, or the like, so that illegal take-out of the article management apparatus 1 and destruction of the article management apparatus 1 can be prevented accurately.

  The invention described in claims 1 to 6 can be applied to the case of managing chemicals, chemical substances or noble metals used in medical or research sites.

(A) is an external appearance perspective view of the article | item management apparatus which concerns on embodiment of this invention, (b) is a schematic diagram which shows the structure of the figure (a). (A) thru | or (c) is a perspective view which shows the internal structure of the drawer which comprises the article | item management apparatus of a present Example. (A) And (b) is XX arrow sectional drawing of Fig.2 (a). (A) thru | or (c) is a schematic diagram for demonstrating operation | movement of a holder and an article | item storage part. (A) is a side view of the article | item management apparatus of a present Example, (b) is a cross-sectional view which shows the lower half of the same figure (a). It is a block diagram which shows the structure of the article | item management apparatus of a present Example. It is a flowchart which shows the operation | movement procedure of the article | item management apparatus of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Goods management apparatus 2 ... Drawer 2a ... Bottom plate 2b ... Front plate 2c ... Rear plate 2d ... Side plate 3 ... Housing 3a ... Rear plate 4 ... Operation part 4a ... Liquid crystal screen 5 ... Printer 6 ... Magnetic card reading part 7a, 7b ... Unlocking lamp 8 ... Article storage unit 9 ... Electronic balance 9a ... Weighing unit 10 ... Electronic lock 10a ... Slider 11 ... Motor 12a-12h ... Signal line 13 ... Control unit 14 ... Calculation unit 15 ... Memory unit 16 ... Input unit 17 ... Display unit 18 ... Square material 19 ... Holder 19a ... Lower surface 20 ... Opening portion 20a ... Upper edge 21 ... Rotary shaft 22,23 ... Gear 24 ... Cam 2424 ... Curved surface 24b ... Flat surface 25 ... Square material 25a ... Lower surface 25b ... Upper surface 26 ... Mounting tool 27 ... Spring 28 ... Receiver 28a ... Inclined surface 29 ... L-shaped metal fitting 29a ... Opening portion 30 ... Buzzer 31 ... Sensor 32 ... Time measuring unit 33a-33i ... Data 34a-34g ... Command signal A to I ... arrows

Claims (6)

  A housing for storing the drawer in which the article is stored, a measuring unit having a weighing unit on the upper surface, a calculating unit for calculating the weight of the article from a measurement result by the measuring unit, a calculation result by the calculating unit and / or the measurement A memory unit for storing results, a display unit for displaying the measurement results and / or the calculation results, an article storage unit placed on the weighing unit of the measuring means, and a vertically movable inside the drawer A holder that is installed; a drive unit that moves the holder up and down; and a controller that controls operations of the measurement unit, the calculation unit, the memory unit, the display unit, and the drive unit, and the measurement When the means is not used, the holder lifts the article storage unit away from the weighing unit. When the measuring unit is used, the holder releases the article storage unit and is placed on the weighing unit. Special to do Article management apparatus according to.   A holder is formed on the upper side surface of the article storage unit with an inclined surface facing outward and downward, and the holder has an opening through which the article storage unit can be inserted in a non-contact manner, and is disposed in the opening. 2. The article management apparatus according to claim 1, wherein the article storage unit is not in contact with the holder and only the inclined surface of the receiver is held by an upper edge of the opening.   A lock mechanism attached to the housing for locking or unlocking the drawer is provided, and the control unit controls the operation of the lock mechanism based on personal authentication information of a user input in advance. The article management apparatus according to claim 1 or 2.   The article management apparatus according to claim 3, further comprising a notification unit that notifies a user by light or sound that the drawer is locked or unlocked.   5. The article management apparatus according to claim 3, further comprising an information reading unit that magnetically, electrically, or optically reads the user personal authentication information. The sensor according to claim 1, further comprising: a sensor for detecting an impact applied to the housing; and a timer unit, wherein the memory unit stores a date and time obtained from the timer unit when the sensor detects an impact. The article management apparatus according to claim 5.