JP2001054994A - Book lending card and book lending system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To visibly display lending information and return schedule information and to erase a display item even when a display area becomes full and to again display by providing a reversible display unit for rewritably display recording the lending information and the schedule information. SOLUTION: The book lending card 1 comprises a reversible display unit 4 for rewritably display recording lending information such as a good lending date 2a, lending book name 2b, lending book code 2c and the like and return schedule information 3 such as a return schedule date or the like on one surface. Thus, in the case of lending a book, the lending information and the schedule information can be visually displayed, and even when display areas all become full, the display items are erased and can be again displayed. The card can be reused repeatedly many times to reduce a waste in a resource conservation, and the book lent at present can be rapidly effectively confirmed. The lending process and the return process of the book can be efficiently conducted in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book lending card and a book lending system used for lending books in a library or the like.

[0002]

2. Description of the Related Art Conventionally, when operating a book lending service in a library or the like, personal information such as a user's address, name, and telephone number is registered in advance in a storage means of a computer based on confirmation of an identification card or the like. Meanwhile, on the other hand, by giving an identification code for identifying the user, providing this identification code on a card as a machine-readable record such as a bar code or a magnetic stripe, and issuing this card to the user, We perform book lending management processing using cards. When a book is lent, a list of book names borrowed by the user is not given to the user, so that it is inconvenient to know which book should be returned at a later date and when.

[0003]

According to the present invention, when lending a book, the lending information and the return schedule information of the book can be visually displayed, and the display area of the card is completely filled with such information. Provided is a book lending card that can be displayed and used again even if displayed. Also, when performing the book lending process using the book lending card, it can be performed more efficiently in a shorter time than before, and when the display area of the card is completely displayed with such information. However, there is provided a book lending system capable of erasing display items and repeatedly using a card.

[0004]

According to one aspect of the present invention, there is provided a card for use in lending a book, wherein the card has an identification code for identifying a card user. A dedicated information recording unit, a rewriting information recording unit that rewritably records book lending information, and a reversible display unit that rewriteably displays and records book lending information and return schedule information. Book lending card.

[0005] The invention of claim 2 is the book lending card according to claim 1, wherein the lending information of the book is a lending date and a lending book name, and the return return information is a return return date. This is a book lending card.

According to a third aspect of the present invention, in the book lending card according to the first aspect, the reversible display section includes a magnetic display section formed by containing magnetic powder sensitive to a magnetic field in a microcapsule. A reversible thermosensitive display unit that reversibly changes depending on the type, a leuco-based reversible thermosensitive display unit, or a reversible display unit using a liquid crystal / polymer composite film layer, for book lending. Card.

According to a fourth aspect of the present invention, there is provided a read-only information recording unit in which an identification code for identifying a card user is recorded in advance, a rewriting information recording unit for rewritably recording book lending information, and a book lending unit. And a reversible display unit for displaying and recording information and return schedule information in a rewritable manner. A book lending system for performing a book lending process using a card, wherein the identification code for reading the identification code of the read-only information recording unit is provided. Card having code reading means, lending information recording means for recording lending information of books in the rewriting information recording section, and display recording means for displaying and recording lending information of books and return schedule information on the reversible display section Reader / writer, input means for inputting book information to be lent, and data processing for generating book return schedule information based on the input information from the input means Stage and a book lending system characterized by comprising a control means for transmitting to the card reader-writer the rental information and the return schedule information based on the information input by the input means.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front plan view of a book lending card according to an embodiment of the present invention. FIG. 2 is a back plan view of the book lending card of the embodiment of the present invention.
FIG. 4 is a cross-sectional view taken along line AA of FIG. 1 when a reversible thermosensitive display unit is used as the reversible display unit. FIG. 4 is a cross-sectional view taken along line AA of FIG. 1 when a magnetic display unit is used as the reversible display unit. FIGS. 5 and 5 are cross-sectional views showing the layer configuration of the magnetic display unit. FIG. 6 is a cross-sectional view showing the behavior of the magnetic powder in the capsule when a vertical magnetic field is applied to the surface of the magnetic display unit. FIG. 8 is a cross-sectional view showing the behavior of the magnetic powder in the capsule when a horizontal magnetic field is applied to the surface of the magnetic display unit.
FIG. 9 is a diagram illustrating a part of a specific device configuration of the book lending system of the present invention. FIG. 9 is a diagram illustrating a configuration of the book lending system of the present invention. FIG. FIG. 11 is a flowchart for explaining a process in one embodiment when a book is returned by the book lending system of the present invention.

The book lending card 1 of the present invention has a book lending date 2a and a lending book name 2 on one side of the card.
b, a reversible display unit 4 capable of rewritably displaying and recording lending information such as a lending book code 2c and scheduled return information 3 such as a scheduled return date, and identifying a card user on the other surface. There is provided a recording unit 5 having a read-only information recording unit 5a in which an identification code to be recorded is recorded, and a rewriting information recording unit 5b for recording book lending information in a rewritable manner. The recording means 5 may be a magnetic recording means composed of a magnetic stripe or an I chip composed of an IC chip.
By providing the C recording means and the like on the card, a read-only information recording section 5a and a rewriting information recording section 5b may be set in those recording means. In addition, as the read-only information recording unit 5a, an optically machine-readable display such as a barcode 5c or OCR characters (optically-readable characters) may be provided on the card.

[0010] In the read-only information recording section 5a, an identification code determined by the card issuer in order to identify a card user is recorded. This identification code is
The code is different for each card user, which is arbitrarily set to identify the card user, and a member number, a user number, or the like can be used as the identification code. Further, in the rewriting information recording unit 5b, information such as a lending date and a lending book name as book lending information and information such as a scheduled return date as book rescheduling information are recorded. ing.

The reversible display unit 4 used in the book lending card 1 of the present invention has various types, and any of them can be selected and used. These reversible display units 4 include, for example, the following four embodiments depending on the difference in display method. Specifically, as a first embodiment, a card having a reversible thermosensitive display section that changes reversibly depending on temperature, as a second embodiment, a card having a leuco-based reversible thermosensitive display section, As a form,
There is a card having a magnetic display portion formed by containing a magnetic powder sensitive to a magnetic field in a microcapsule. As a fourth embodiment, there is a card having a reversible display portion using a liquid crystal / polymer composite film. Each embodiment will be described for each difference in the method of each reversible display unit.

(First Embodiment) A first embodiment of a book lending card according to the present invention will be described below. As shown in FIG. 3, the card base material 6 of the book lending card 1 is configured by laminating two center core sheets 7a and 7b, and laminating transparent oversheets 8a and 8b above and below the center core sheets 7a and 7b. . The oversheet 8b is formed by attaching a magnetic recording portion 9 made of a magnetic stripe to the surface thereof. Further, instead of the magnetic recording section 9, an IC recording section composed of an IC chip may be provided in a part of the card. Then, a read-only information recording section and a rewritable information recording section are set in the magnetic recording section 9 or the IC recording section as the recording means. On the other hand, the center core sheets 7a and 7b are made of a milky white copolymer resin of vinyl chloride and vinyl acetate.
On the surfaces of a and 7b, for example, a print display 10 such as a card issuer name, a card name, and various patterns, marks, and designs is formed by offset printing, silk screen printing, or the like. The center core sheets 7a and 7b are
One to three or more sheets may be used as long as the required thickness is obtained, and there is no need to particularly limit the number to two sheets.
May be constituted by a single sheet or a multilayer sheet.

The resin used as the material of the oversheets 8a and 8b and the center core sheets 7a and 7b is not particularly limited, but specific examples thereof include polyvinyl chloride resin, vinyl acetate resin, and vinyl chloride-vinyl acetate copolymer. Resin, butadiene resin, acrylonitrile-butadiene-styrene copolymer resin, polycarbonate resin, polyamide resin, cellulose resin, polyester, polyethylene,
Examples include synthetic resins such as polyolefins such as polypropylene, polyvinyl alcohol, acrylic resins, polymethyl methacrylate resins, styrene resins, urethane resins, fluororesins, and mixtures thereof.

The oversheet 8a of the card substrate 6
A concave portion 11 is formed in a part of the surface of the device, and a reversible thermosensitive display portion 4a as the reversible display portion 4 is provided in the concave portion 11. The reversible thermosensitive display section 4a is provided by being attached to the concave portion 11 on the surface of the oversheet 8a of the card base material 6. In the reversible thermosensitive display section 4a, an adhesive layer 12, a support (PET) 13, a thermosensitive recording layer 14, and a protective layer 15 are sequentially laminated from the bottom. Reversible thermosensitive display unit 4 used in the present invention
a is described in, for example, JP-A-54-119377;
JP-A-5-154198, JP-A-61-258853, JP-A-58-7683, JP-A-57-109695, JP-A-57-82086 to JP-A-82088, and the like. The transparent state and the cloudy state change reversibly, and at room temperature, the above 2
It is a polymer composition that can maintain its form.

For example, these materials become turbid when heated and cooled to a higher temperature T ₁ or higher at room temperature, and become transparent when heated to a temperature T ₂ higher than room temperature and lower than T ₁ and then cooled. Thus, a thermosensitive recording layer was formed from these polymeric compositions, this layer becomes entirely transparent film of cooling after heating and the temperature T ₂ higher than the room temperature lower than T _1, the thermal head or the like to the transparent film T
_When printed at _one or more temperatures, white characters due to cloudiness are formed. When heated to a temperature again T ₂ on the entire surface after the character forming these letters are erased, thereby enabling printing at a temperature of T ₁ again. Further, the whole was allowed to temperature clouding T ₁ Conversely,
It can also be printed out for extracting character shape at a temperature of T _2.

Any of the polymer compositions having the above-mentioned physical properties can be used in the present invention. Preferred specific examples thereof include polyvinyl chloride, vinyl chloride-based copolymer, vinylidene chloride-based copolymer, and polyester. A thermoplastic resin such as a matrix material is used as a matrix material. In this matrix material, the use ratio with a saturated or unsaturated fatty acid having 10 to 30 carbon atoms, an organic low molecular weight substance such as an ester, a mamide or an ammonium salt thereof is by weight. 3: 1 to 16:
1, preferably in the range of 6: 1 to 12: 1.

In order to improve the durability of the heat-sensitive recording layer 14, a transparent protective layer 15 is formed on the surface thereof. The protective layer 15 is formed using the same resin as the above-mentioned oversheets 8a and 8b. May be. As described above, the protective layer 15, the heat-sensitive recording layer 14, the support (PET) 13, and the adhesive layer 12 formed on the card base material are formed on both sides and one side of the card base material 6, respectively, so as to conform to the purpose of use of the card. It may be provided in all or a part.

(Second Embodiment) Next, a book lending card 1 of a second embodiment will be described. In the book lending card 1 of the second embodiment, a leuco-based reversible thermosensitive display section is formed on the reversible display section 4. The book lending card 1 of the second embodiment has the same card base structure and print display as the card of the first embodiment, a magnetic recording unit or an IC recording unit. Therefore, description of the configuration of the card base material and the like will be omitted, and the leuco-based reversible thermosensitive display unit will be described below.

The leuco-based reversible thermosensitive display section is provided by heating the thermosensitive recording layer 14 of the reversible thermosensitive display section 4a of FIG. Or an amphoteric compound having an acidic group and a hydrochloric acid group, and a binder made of a polymer material or the like dissolved in water or an organic solvent.

The leuco dyes include 3-indolino-p
-Dimethylaminophenyl-6-dimethylaminophthalide, crystal violet lactone, 3-diethylamino-7-chlorofluoran, 2- (2-fluorophenylamino) -6-di-n-butylaminofluoran,
2- (2-fluorophenylamino) -6-diethylaminofluoran, 3-diethylamino-7-cyclohexylaminofluoran, 3-diethylamino-5-methyl-7-tert-butylfluoran, 3-diethylamino-
6-methyl-7-p-butylanilinofluoran, 3-
Diethylamino-6-methyl-7-anilinofluoran, 2-anilino-3-methyl-6- (N-ethyl-p
-Toluidino) -fluorane, 3-pyrrolidino-6-methyl-7-anilinofluoran, 3-pyrrolidino-7-
Cyclohexylaminofluoran, methyl-7-anilinofluoran, 3-N-methylcyclohexylamino-
6-methyl-7-anilinofluoran and the like can be used.

As the acidic group to be colored by heating the leuco dye, a phenolic hydroxyl group or a carboxyl group can be used. Further, as the hydrochloric acid group to be decolorized by heating the leuco dye, an amino group or the like can be used. Examples of these amphoteric compounds having an acidic group and a hydrochloric acid group include aminophenols such as 2-aminophenol, 3-aminophenol, and 4-aminophenol; 2-aminobenzoic acid, 3-aminobenzoic acid, and 4-aminophenol.
Aminobenzoic acid such as aminobenzoic acid; 2-hydroxy-
3-aminobenzoic acid, 2-amino-3-hydroxybenzoic acid, 2-amino-4-hydroxybenzoic acid, 2-amino-4-aminobenzoic acid, 2-hydroxy-6-aminobenzoic acid, 3-amino- 4-hydroxybenzoic acid, 3-
Hydroxyaminobenzoic acid such as hydroxy-5-aminobenzoic acid can be used.

As the compound having an acidic group, 2
-Hydroxybenzoic acid such as -hydroxybenzoic acid and 3-hydroxybenzoic acid; and hydroxysalicylic acid such as 4-hydroxysalicylic acid and 5-hydroxysalicylic acid can be used. Examples of the compound having a hydrochloric acid group include octylamine, nonylamine, benzylamine, 2-phenylethylamine, and 6-phenylhexylamine. As the binder, methyl alcohol, polyvinyl alcohol, ethyl cellulose, cellulose acetate, nitrocellulose, polystyrene, polyviryl chloride and the like can be used.

The content of each of the above components in the leuco reversible thermosensitive display section is such that 0.1 to 1 part by weight of a leuco dye and 2 parts by weight or less of a binder are mixed with 1 part by weight of an amphoteric compound. Then, for example, the amphoteric compound, leuco dye, and binder are dissolved or dispersed in water or an organic solvent and printed on a support by a method such as gravure printing, offset printing, or letterpress printing.

The principle of image display and image deletion in the leuco reversible thermosensitive display unit is as follows. By heating the leuco-based reversible thermosensitive display section at a relatively low temperature with a thermal head, the thermal energy causes the phenolic compound to open the lactone ring of the colorless leuco dye and change its color from colorless to colored. Various information is displayed so as to be visible. In addition, by heating at a high temperature with a ceramic bar, the lactone ring can be closed by the thermal energy to return to a colorless compound. In other words, they exhibit a property of an acid by the action of heat or a color developer or a color-reducing agent with respect to a leuco dye to show the property of a base.

(Third Embodiment) Next, a book lending card 1 according to a third embodiment will be described. The book lending card 1 of the third embodiment has a magnetic display section 4c formed on a reversible display section 4 as shown in FIG. The book lending card 1 according to the third embodiment has the same card base configuration, print display, and magnetic recording unit as the card according to the first embodiment. Therefore, description of the card base material configuration and the like is omitted, and the magnetic display portion 4c will be described below.

As shown in FIG. 4, the laminated structure of the magnetic display section 4c, which is the reversible display section 4, has an oversheet 8a.
In the recess 11 formed in the above, a substrate 16, a recording layer 17 provided on the substrate 16, and a protective layer 19 provided on the recording layer 17 with an anchor layer 18 interposed therebetween.

The material of the substrate 16 is not particularly limited as long as it is a sheet-like material such as plastic, paper, metal, etc.
It is particularly preferable that the substrate 16 itself is colored black or that the surface of the substrate 16 is colored black for clarifying the display contrast. As a coloring means, for example, a pigment such as barium sulfate, micro silica, carbon black or the like may be kneaded with various plastic raw materials and then formed into a sheet. The thickness of such a substrate is typically 5
It is about 0 to 200 μm. In addition, the substrate 16 is not necessarily provided, and the over sheet 8 of the card base 6 is not required.
The recording layer 17 may be formed directly in the concave portion 11 of FIG. If necessary, the concave portion 11 may be provided in the overseat 8a and the center core sheet 7a.

The recording layer 17 provided on such a substrate 16 has a plurality of microcapsules 2 as shown in FIG.
0 and a binder 21. Vehicle and magnetic powder 22a as liquid 22b are contained in microcapsules 20.
And the magnetic powder 22a is suspended in the vehicle. The vehicle preferably contains a polar liquid, a hydrophobic liquid, and a thermoplastic resin. Examples of the polar liquid include alcohols, ketones, esters, carboxylic acids, and amino compounds having a polar group such as a hydroxy group, a carboxy group, and an amino group. More specifically, esters such as aromatic acid esters, fatty acid esters, alcohol esters, and oxyacid esters are common, and examples include dibutyl phthalate, octidiphenyl phosphate, dioctyl sebacate, triacetone, castor oil, and the like. A preferred example is given.

Examples of the hydrophobic liquid include aliphatics having low volatility,
Aromatic hydrocarbons and mixtures thereof, which are commonly used in pressure-sensitive copying paper microcapsules, are preferred. Any thermoplastic resin can be used as long as it can be stably dissolved in the mixed liquid of the polar liquid and the hydrophobic liquid. Above all, those which have good transparency at the time of dissolution, do not gelate by electric field, magnetic field, light, heat, temperature, etc. and have no adverse effect on the reaction of forming microcapsule walls are selected. . Preferred examples include polyvinyl butyral, polyvinyl acetate, alicyclic saturated hydrocarbon resin, polymethacrylate, acetyl cellulose, ethyl cellulose and the like.

The viscosity of the vehicle containing such components at room temperature is about 20 to 5000 cp. The viscosity mainly varies depending on the content of the thermoplastic resin, and the thermoplastic resin is contained at about 2 to 50% by weight. Also,
The content of the polar fluid is appropriately set in consideration of the compatibility with the thermoplastic resin, the stability of the magnetic powder, and the like. Alternatively, heating writing may be performed by using a solid phase wax at room temperature instead of a liquid.

As the magnetic powder 22a, stainless steel such as iron, nickel, iron-nickel, iron-nickel-chromium, aluminum-cobalt alloy, samarium-cobalt alloy and the like are used. The shape of the magnetic powder 22a is preferably a so-called flake shape, and the thickness is preferably as small as possible and the ratio of the thickness to the particle size is large. The particle size is about 3 to 15 μm. When the particle size is large, the capsule is not well stored in the capsule, and the influence on the external magnetism is delayed. On the other hand, when the particle size is reduced, when magnetized, the difference in light reflectance between the horizontal direction and the vertical direction becomes small, and the contrast during recording deteriorates. The holding power of the magnetic powder 22a may be appropriately selected depending on the use of the medium to be used. Further, from the viewpoint of improving the dispersibility of the magnetic powder 22a in the vehicle and preventing aggregation of the magnetic powder, the surface of the magnetic powder may be coated with various known organic materials in advance. In order to increase the reflectance of the magnetic powder, aluminum, silver, or the like may be deposited on the surface of the magnetic powder.

Further, it is preferable that the microcapsules 20 contain a dye or a pigment in order to improve the contrast. Such a microcapsule 20
Are described, for example, in U.S. Pat.
No. 142556, U.S. Pat. No. 4,001,140 and the like. The particle diameter of the microcapsules 20 is preferably 10 to 100 μm in volume average diameter. If the value is too small, the contrast at the time of recording is not sufficient because the total amount of magnetic powder contained in the capsule is small. Conversely, if this value is too large, irregularities will occur on the recording layer surface, and the recorded image will be non-uniform.

The binder used to coat such microcapsules 20 is not particularly limited as long as it does not damage the microcapsule walls and adheres well to the surface of the substrate 15. As a more preferred specific example,
Hydroxyethyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone and the like can be mentioned. The thickness of the recording layer 17 containing such microcapsules is usually 50 to 200 μm. On such a recording layer 17, a protective layer 19 is provided via an anchor layer 18.

The magnetic display section 4c formed as described above
It is preferable that a magnetic layer (not shown) is embedded in the lower layer. As this magnetic layer, for example, iron, nickel,
It is made of a material such as stainless steam such as chromium, aluminum, a cobalt alloy, a samarium-cobalt alloy.
Its size is about the same as the magnetic display section, and its thickness is about 50 to 200 μm.

The mechanism of displaying information on the magnetic display section 4c is such that when a vertical magnetic field φV is applied as shown in FIG. 6, the magnetic powder 22a of the microcapsule 20 is aligned vertically.
As a result, the incident light Li from the outside is aligned on the medium surface, reaches the surface of the substrate 16 and is absorbed there, and the reflected light Lo becomes small. In this state, since the reflected light is small, it is visually observed as black.

On the other hand, when a perpendicular magnetic field φP is applied as shown in FIG. 7, the magnetic powder 22a of the microcapsule 20 is horizontally oriented, and the incident light Li from the outside is reflected by the magnetic powder 22a, and the reflected light Lo is reflected. In this state, the magnetic powder 22a
The color from is visible. Therefore, if the state of FIG. 6 is set to the erased state, a bright metal color can be visually observed from the outside. On the other hand, when a horizontal magnetic field φV is applied to the state of FIG. 6 as shown in FIG. 7, only the magnetic powder 22a in that part is partially in a horizontal state. Can be easily read from outside.

(Fourth Embodiment) Next, a book lending card according to a fourth embodiment will be described. In the book lending card of the fourth embodiment, the reversible display section 4 is provided with a reversible display section using a liquid crystal / polymer composite film. The book lending card of the fourth embodiment has the same card base structure and print display as the card of the first embodiment, a magnetic recording unit or an IC recording unit. Therefore, description of the structure of the card substrate and the like will be omitted, and the reversible display unit using the liquid crystal / polymer composite film will be described below.

In the case of using a liquid crystal / polymer composite film, the reversible display portion is formed by laminating a conductive layer serving as an electrode and a liquid crystal / polymer composite film on a card base material, and more preferably, a protective layer thereon. Provide. In the liquid crystal / polymer composite film, liquid crystal particles are independently dispersed in a matrix resin.
Also, as the liquid crystal / polymer composite film, it is preferable to use a polymer thin film having a continuous porous structure in which voids (porous portions: usually called cells) are filled with liquid crystal. A polymer thin film having a continuous porous structure used as a polymer matrix is formed by communicating a myriad of fine pores present in the polymer thin film, and has a continuous porous structure having an appropriate porosity and voids of an appropriate size. The type of polymer is not particularly limited as long as it has a polymer thin film. As the polymer thin film having a continuous porous structure, for example, a stretched polytetrafluoroethylene, a filler having a large number of fine pores added, a perforated polymer thin film, and the like can be used.

As the liquid crystal to be filled in the voids of the polymer thin film having a continuous porous structure, any conventionally known liquid crystal can be used, but it is particularly preferable to use a smectic liquid crystal having excellent memory properties. . As such a smectic liquid crystal, for example, various smectic liquid crystals available from Japan Energy are used. A liquid crystal / polymer composite film in which liquid crystal composition particles are filled in voids in a polymer thin film having a continuous porous structure is formed between a pair of conductive substrates, at least one of which is transparent, to form a reversible display medium. Is prepared and provided on a part of the card base material to form a reversible display portion.

The recording and erasing of information on the reversible display using the liquid crystal / polymer composite film will be described. The information is erased by heating the liquid crystal / polymer composite film layer as necessary and then applying an electric field to orient the liquid crystal molecules in the direction of the electric field. As a method for applying an electric field, a corona charging method is particularly effective. Recording of information is performed by applying necessary heat to the liquid crystal / polymer composite film layer and disturbing the orientation of liquid crystal molecules in the portion where the heat is applied. As a method for applying heat, a method using a thermal head is preferable. Note that recording may be performed by an electric field and erasing may be performed by heat.

As described above, in the present invention, as the reversible display section 4, cards provided with various types of reversible display sections can be used, but the present invention is not limited to the above-described scheme. And a card provided with a reversible display unit of various other types.

The book lending card 1 of the present invention uses the rewritable display reversible display unit 4 as shown in the above-described first to fourth embodiments. As shown in the figure, the card rewritably displays the lending information such as the lending date 2a, the lending book name 2b, and the lending book code 2c, and the return schedule information 3 such as the expected return date.

Next, a book lending system according to the present invention will be described. In the book lending system of the present invention, as shown in FIGS. 8 and 9, for example, a main control device 24 of a personal computer device 23 is provided with a control means 26 including a data processing means 25, and the book lending information is provided. Input means 27 including a keyboard for inputting data and display means 28 including a display device such as a CRT and a liquid crystal display device are provided. Further, a member database 29 in which personal information of library users is stored, a book management database 30 for managing books to be lent out in the library, and the like are stored in a floppy disk, a hard disk, or the like. Or record necessary information.

On the other hand, a card reader / writer 31 is connected to the personal computer device 23, and the book lending card 1 is inserted from the card insertion slot 32 of the card reader / writer 31 so that the card reader / writer 31 is inserted therein.
Various information can be written, read, and displayed on the read-only information recording unit 5a, the rewriting information recording unit 5b, and the reversible display unit 4 of the book lending card 1. Therefore, the card reader / writer 31 includes an identification code reading unit 33 for reading the identification code recorded in the read-only information recording unit 5 a of the book lending card 1, and a rewriting information recording unit 5.
b, lending information recording means 34 for recording information on book lending, for example, lending date, lending book name or lending book code, scheduled return date, etc., and reversible display section 4 of book lending card 1 In addition, a display recording means 35 for rewritably displaying and recording rewritable information of books such as a lending date and a lending book name and a scheduled return date such as a scheduled return date.

[0045]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention. In this embodiment, a description will be given of a processing procedure in a case where a library is lent out using a book lending card 1 and a case where a book is returned.

First, a personal computer 23 and a card reader / writer 31 as shown in FIG. 8 are provided at a reception desk for lending and returning books to the library.
And are set up in advance. As a procedure for lending a book at a library, a user selects a book to be borrowed, then brings the book and the book lending card 1 and submits it to a reception desk. At the reception desk, the library staff once receives the book and the book lending card 1, and inserts the book lending card 1 into the card insertion slot 32 of the card reader / writer 31 (S1). Then, the card reader / writer 31 reads the read-only information recording section 5 of the book lending card 1.
Read the user identification code recorded in (a) (S
2). Using the read identification code as a key, the registered information in the member database 29 is searched, and the member information corresponding to the user is extracted and displayed on the display means, for example, to determine whether the number of books to be borrowed has been exceeded. Confirmation according to the rental condition such as (S3).

Next, the input means 28 reads and inputs, as information of the book to be lent, a book code displayed on a machine-readable display such as a bar code displayed on a sticker or the like attached to the book (S4). And input means 2
Lending information such as a lending date based on the information input in step 8 and a corresponding date calculated by adding a period previously determined as a lending period from the lending date are calculated by the data processing means 25 as the expected return date (S5). Are transmitted to the card reader / writer 31 by the control means 26. Next, based on the book code read by the input means 28, the book management database 3
The corresponding book name is extracted from 0 (S6).

Next, as the book lending information, return schedule information such as a lending date, a lending book name, a book code, and a scheduled return date is registered in the member database 29 and the book management database 30 (S7). Next, after the book lending information and the return schedule information are also recorded and displayed on the rewriting information recording unit 5b and the reversible display unit 4 of the book lending card 1 by the card reader / writer 31, the book lending card 1 is rewritten.
Is discharged (S8).

The processing procedure for returning a book will be described below. Bring the book to be returned and the card lending card 1 and submit it to the reception desk. At the reception counter, the library staff once receives the book and the book lending card 1, and inserts the book lending card 1 into the card insertion slot 32 of the card reader / writer 31 (S9). Then, the user identification code recorded in the read-only information recording unit 5a of the book lending card 1 is read by the card reader / writer 31 (S10). The registration information of the member database 29 is searched using the read identification code as a key,
The member information corresponding to the user is extracted and displayed on the display means, and for example, it is checked whether or not the book return period has expired (S11).

Next, the book code recorded in the rewriting information recording section 5b of the book lending card 1 is read by the card reader / writer 31 (S12). Then, the corresponding book name is extracted from the book management database 30 using the read book code as a key (S13). Next, return information indicating the return is input by the input means 28 (S14). Then, the return information is registered in the member database 29 and the book management database 30 (S15). Finally, the card reader / writer 31 deletes and erases the lending information and return schedule information recorded or displayed on the rewriting information recording section 5b and the reversible display section 4 of the book lending card 1, and then ejects the card (S1).
6).

As described above, the library lends and returns the book using the book lending card 1 in the library. In addition, display recording and erasing of the book lending card 1 on the reversible display unit using the card reader / writer 31 are as follows.
The display recording means 3 of the type corresponding to the type of the reversible display unit of the type selected and adopted from the various embodiments described above.
5, and the identification code reading means 33 and the lending information recording means 34 of the card reader / writer 31 can also read and record in correspondence with the recording means of the method used for the book lending card 1. Use the method of the method.

[0052]

As described in detail above, the book lending card of the present invention can visually display book lending information and return schedule information at the time of lending a book,
Even when the display area of the card is completely filled with such information, the displayed items can be erased and displayed again, so that the card can be reused as many times as possible. In addition to saving less, when checking the currently borrowed books, only the information of the borrowed books is displayed and the information of the books returned in the past is not displayed, so it is quick to check Confirmation can be made surely and it is efficient. In addition, by using the book lending system of the present invention, the lending information and the return information can be quickly recorded and displayed on the recording unit or the reversible display unit provided on the card. Since the processing can be performed efficiently in a short period of time, the user is less required to wait than before, which is convenient.

[0053]

[Brief description of the drawings]

FIG. 1 is a front plan view of a book lending card according to an embodiment of the present invention.

FIG. 2 is a plan view of the back side of the book lending card according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1 when a reversible thermosensitive display unit is used as the reversible display unit.

FIG. 4 shows a case where a magnetic display unit is used as the reversible display unit.
It is AA sectional drawing of.

FIG. 5 is a cross-sectional view illustrating a layer configuration of a magnetic display unit.

FIG. 6 is a cross-sectional view showing the behavior of the magnetic powder in the capsule when a vertical magnetic field is applied to the surface of the magnetic display unit.

FIG. 7 is a cross-sectional view showing the behavior of the magnetic powder in the capsule when a horizontal magnetic field is applied to the surface of the magnetic display unit.

FIG. 8 is a diagram showing a part of a specific device configuration of the book lending system of the present invention.

FIG. 9 is a diagram showing a configuration of a book lending system of the present invention.

FIG. 10 is a flowchart illustrating a process in one embodiment of the book lending system of the present invention at the time of book lending.

FIG. 11 is a flowchart illustrating a process in an embodiment when a book is returned by the book lending system of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Book lending card 2a Lending date 2b Lending book name 2c Book code 3 Scheduled return date 4 Reversibility display part 5 Recording means 5a Read-only information recording part 5b Rewriting information recording part 5c Bar code 6 Card base material 7a, 7b Center Core sheet 8a, 8b Oversheet 9 Magnetic recording section 10 Print display 11 Depression 12 Adhesive layer 13 Support 14 Thermal recording layer 15 Protective layer 16 Substrate 17 Recording layer 18 Anchor layer 19 Protective layer 20 Microcapsule 21 Binder 22a Magnetic powder 22b Liquid Reference Signs List 23 Personal computer device 24 Main control device 25 Data processing means 26 Control means 27 Input means 28 Display means 29 Member database 30 Book management database 31 Card reader / writer 32 Card insertion slot 33 Identification code reading means 34 Lending information recording Means 35 Display recording means

Claims (4)

[Claims] 1. A card used when lending a book, a read-only information recording section in which an identification code for identifying a card user is recorded, and a rewriting information record for recording lending information of the book in a rewritable manner. And a reversible display unit for rewritably displaying and recording book lending information and return schedule information. 2. The book lending card according to claim 1, wherein the lending information of the book is a lending date and a lending book name, and the return return information is a return return date. card. 3. The book lending card according to claim 1, wherein the reversible display section is formed by containing a magnetic powder sensitive to a magnetic field in a microcapsule; A lending reversible thermosensitive display, a leuco-based reversible thermosensitive display, or a reversible display using a liquid crystal / polymer composite film layer. 4. A read-only information recording section in which an identification code for identifying a card user is recorded in advance, a rewriting information recording section for recording book lending information in a rewritable manner,
A reversible display unit that rewriteably displays and records book lending information and return schedule information, and a book lending system that performs book lending processing using a card, the identification code of the read-only information recording unit. Identification code reading means for reading, lending information recording means for recording book lending information in the rewriting information recording unit, and display recording means for displaying and recording book lending information and return schedule information on the reversible display unit. A card reader / writer having: an input unit for inputting information of a book to be lent; a data processing unit for generating book return schedule information based on the input information by the input unit; a lending based on the information input by the input unit Control means for transmitting information and the return schedule information to the card reader / writer.