Roller

Abstract

A roll of an information storage medium is desired that can efficiently perform quality control, inventory management, etc. even when repeatedly exposed to environments of high temperature, high pressure, and high humidity. The roll of the present invention is characterized by including: a core material having a storage portion; an information storage medium stored in the storage portion; and a cover formed of a cured product of a thermosetting resin and provided above the information storage medium stored in the storage portion so as to block the opening of the storage portion.

Description

Technical Field

[0001] The present invention relates to a roll having an information storage medium for efficiently performing quality management, inventory management, etc.

[0002] Among them, it relates to a technology for enabling a roll having an elastomer coated on a core material to achieve high efficiency in quality management, inventory management, etc.

[0003] In addition, among them, it particularly relates to a technology for enabling an elastic roll (such as a rubber roll, a polyurethane roll, a sponge roll) formed (coated) with an elastomer by vulcanization and curing to achieve high efficiency in quality management, inventory management, etc. In other words, it relates to a technology for enabling an elastic roll repeatedly exposed to high temperature, high pressure, and high humidity environments during manufacturing, use, maintenance (re-coating), etc. to achieve high efficiency in quality management, inventory management, etc. Background Art

[0004] In the manufacturing, processing, and handling processes of thin plate-like products such as steel plates, paper, and films, a large number of rolls are used. Most of these rolls are used in harsh environments and are regularly replaced due to wear, deterioration caused by load, heat, chemical solution, oil, etc. In addition, the roll is also replaced when sudden breakage or defective conditions occur during use. Therefore, in order to cope with such failures, it is currently the case that multiple (hundreds) of rolls are stored and managed in the factory.

[0005] In particular, in the roll, by using an elastic roll having an elastomer coated on a core material, the coated elastomer also wears, deteriorates, or breaks. Therefore, regarding the elastic roll, the manufacturer of the elastic roll represented by the applicant of the present application retrieves the used elastic roll for maintenance and delivers it to the factory where it is used. Moreover, in maintenance, in most cases, the old elastomer that has worn, deteriorated, or broken is removed and a new elastomer is re-coated, and it is delivered to the factory where it is used. Therefore, regarding the elastic roll, not only the replacement elastic rolls are stored and managed in the factory, but also a large number of elastic rolls are stored and managed during the transportation process and at the manufacturer of the elastic roll.

[0006] And, regarding the storage and management of these large numbers of rolls, conventionally, roll information such as numbers and marks is engraved on the end face of the core material and the engraved information is identified (visually confirmed).

[0007] However, this method has a problem that it is difficult to identify the engraved roll information due to the harsh environment (load, heat, chemical solution, oil, etc.) during use. In particular, for some rolls that need to be replaced every few years, this problem becomes more prominent.

[0008] Therefore, as a technology alternative to engraving, a technology has been proposed in which an information storage medium such as a barcode or an IC tag into which roll information has been input is pasted or embedded in a core material for storage and management (Patent Documents 1 and 2).

[0009] Prior Art Documents

[0010] Patent Documents

[0011] Patent Document 1: Japanese Patent Laid-Open No. 6-87009

[0012] Patent Document 2: Japanese Patent Laid-Open No. 2010-12482 Summary of the Invention

[0013] Problems to be Solved by the Invention

[0014] However, in the inventions described in Patent Documents 1 and 2, there are problems such as the information storage medium peeling off, falling off during the use and maintenance of the roll, or poor communication due to the environment during use and maintenance.

[0015] Particularly, in the case of elastic rolls such as rubber rolls, polyurethane rolls, and sponge rolls, since vulcanization and curing are performed during the recoating of the elastomer, this problem becomes more prominent. That is, for elastic rolls such as rubber rolls, polyurethane rolls, and sponge rolls, each time recoating is performed, the information storage medium is repeatedly exposed to the high temperature, high pressure, and high humidity environment of the vulcanization process and the curing process. Therefore, even if there are no problems in one or two recoatings, if the number of recoatings increases, problems such as peeling, falling off, and poor communication of the information storage medium will occur.

[0016] In addition, in the roll information management component described in Patent Document 2, in addition to the above problems, since this roll information management component is installed on the roll to be managed by hand, there is also a problem of errors (human errors) occurring during installation.

[0017] Therefore, in rolls used in factories (especially elastic rolls), almost no quality management and inventory management of information storage media are performed, and the current situation is that management based on engraving is usually still carried out.

[0018] In this case, the inventors of the present application conducted in-depth research and obtained the following insights: By providing a storage portion with an opening on the core material of the roller, storing an information storage medium in the storage portion, and then providing a cover formed of a cured product of a thermosetting resin on the upper portion of the information storage medium stored in the storage portion so as to block the opening of the storage portion, it is possible to efficiently perform quality management, inventory management, etc. of the roller even when using a commercially available general information storage medium. In other words, the following insight was obtained: By having the same or corresponding specific technical features (STF: Specific Technical Feature) such as a "core material provided with a storage portion", an "information storage medium", and a "cover formed of a cured product of a thermosetting resin", it is possible to efficiently perform quality management, inventory management, etc. of the roller even when using a commercially available general information storage medium.

[0019] In addition, the following insight was obtained: This "same or corresponding specific technical feature (STF)" is particularly useful when the roller is an elastic roller such as a rubber roller, a polyurethane roller, or a sponge roller. That is, the following insight was obtained: Even when repeatedly exposed to an environment of high temperature, high pressure, and high humidity, problems such as peeling, falling off, and poor communication of the information storage medium will not occur, and it is possible to efficiently perform quality management, inventory management, etc. using a commercially available general information storage medium.

[0020] Furthermore, the following insight was obtained: It is possible to use the ability to pass a high temperature, high pressure, and high humidity test under specific conditions as a criterion for determining whether an information storage medium can be used in the invention of the present application.

[0021] The present invention has been completed in view of the above-mentioned conventional problems, and an object thereof is to provide a roller capable of efficiently performing quality management, inventory management, etc. using a commercially available general information storage medium.

[0022] Technical solution for solving the problem

[0023] In order to achieve the above object, the roller of the present invention is characterized by comprising: a core material provided with a storage portion having an opening; an information storage medium stored in the storage portion; and a cover formed of a cured product of a thermosetting resin, which is provided on the upper portion of the information storage medium stored in the storage portion so as to block the storage portion, and the information storage medium still maintains its communication function even after undergoing a high temperature, high pressure, and high humidity test under the conditions of 155 °C, 100% RH, 0.5 to 0.6 MPa, and 3 hours.

[0024] In addition, the roller of the present invention is characterized in that it includes: a core material provided with a storage portion having an opening; an information storage medium stored in the storage portion; and a cover member formed of a cured product of a thermosetting resin and provided above the information storage medium stored in the storage portion so as to block the storage portion. The cover member further includes a plastic or glass cover member having a thickness of 1 mm or more.

[0025] It should be noted that the inventions described in

[0014] and

[0015] both have the same or corresponding specific technical features (STF) such as "a core material provided with a storage portion", "an information storage medium", and "a cover member formed of a cured product of a thermosetting resin", and thus meet the requirements for the unity of invention.

[0026] The roller of the present invention is characterized in that the cover member further includes a plastic or glass cover member.

[0027] The roller of the present invention is characterized in that it is a roller in which an elastomer is coated on the core material by vulcanization or curing.

[0028] The roller of the present invention is characterized in that the heat deflection temperature of the cured product of the thermosetting resin or the plastic cover member measured according to ASTM D648 or ISO 75 is 130 °C or higher.

[0029] The roller of the present invention is characterized in that the information storage medium is stored in the storage portion in such a manner that the side surface is separated from the inner surface of the storage portion by at least 1 mm or more, and the upper surface is stored in the storage portion at a depth within 4 mm from the opening surface of the storage portion.

[0030] The roller of the present invention is characterized in that it further includes a storage container that stores the information storage medium and is stored in the storage portion.

[0031] The roller of the present invention is characterized in that the information storage medium is circular in a top view.

[0032] The roller of the present invention is characterized in that the information storage medium is a passive RFID.

[0033] The roller of the present invention is characterized in that a groove portion or a recess portion is provided on the inner side surface of the storage portion, and a cured product of a thermosetting resin is filled in the groove portion or the recess portion.

[0034] The roller of the present invention is characterized in that the information storage medium is bonded in the storage portion by a thermosetting resin.

[0035] Advantages of the Invention

[0036] The roller according to the present invention is configured such that a storage portion having an opening is provided on the core material of the roller, an information storage medium is stored in the storage portion, and further, a cover member formed of a cured product of a thermosetting resin is provided so as to block the storage portion. Thus, it is possible to realize a roller capable of performing inventory management, quality management, etc., even when exposed to high temperature, high pressure, and high humidity environments during manufacturing, use, and maintenance (recoating). In addition, such a roller can be realized by using a commercially available general information storage medium.

[0037] Specifically, with respect to an information storage medium that has passed a high temperature, high pressure, and high humidity test (e.g., a pressure cooker test) under specific conditions, by adopting the above-described structure, it is possible to realize a roller capable of performing inventory management, quality management, etc. (capable of maintaining the communication state of the information storage medium well). In addition, if a cover member is used in combination with the cured product of the thermosetting resin as the cover member, the communication state of the information storage medium can be maintained even better.

[0038] In addition, even for an information storage medium that has not passed a high temperature, high pressure, and high humidity test under specific conditions, by configuring the cover member to have a structure in which a cover member having a thickness of a certain level or more is used in combination with the cured product of the thermosetting resin, it is possible to realize a roller capable of performing inventory management, quality management, etc. (capable of maintaining the communication state of the information storage medium well).

[0039] It should be noted that this effect is particularly remarkable in elastic rollers (rubber rollers, polyurethane rollers, sponge rollers, etc.) that require a vulcanization process or a curing process.

[0040] The roller according to the present invention can effectively protect the information storage medium by forming the cover member from a specific thermosetting resin (heat-resistant material).

[0041] The roller according to the present invention can effectively suppress the interference (attenuation of radio waves) between the radio waves from the information storage medium and the core material. In addition, it is possible to balance the ensuring of the communication state of the information storage medium between the information storage medium and the wireless device and the protection of the information storage medium. In addition, this effect is particularly remarkable when the core material is made of metal.

[0042] The roller according to the present invention can more effectively protect the information storage medium by further using a storage container for storing the information storage medium. In addition, it is possible to more effectively prevent the situation where the information storage medium is stored in a position biased to one side in the storage portion. As a result, it is possible to more effectively suppress the interference (attenuation of radio waves) between the radio waves from the information storage medium and the core material (metal).

[0043] The roller according to the present invention can suppress the deviation (directivity) of radio waves by setting the information storage medium to a specific shape. In addition, it is possible to more effectively suppress the interference of radio waves with the core material that is likely to occur when using a rectangular information storage medium.

[0044] The roller according to the present invention can effectively prevent misidentification between multiple rollers that occurs when using active (high-output) RFID, IC tags with a wide communication range, etc., by setting the information storage medium to a passive RFID. In addition, it can be used without problems in places such as iron and steel plants where prevention of mutual interference of radio waves with other electronic devices is required. And since there is no need to replace the battery, even in a roller used for a long time, it can be used until the roller reaches the end of its life just by installing it once.

[0045] The roller according to the present invention can more effectively prevent the cover member from falling off the storage portion by providing a groove portion or a recess portion on the inner side surface of the storage portion and filling the groove portion or the recess portion with a cured product of a thermosetting resin, even when the cover member (cured product of a thermosetting resin) deteriorates. As a result, the communication state of the information storage medium can be maintained better.

[0046] The roller according to the present invention can prevent the information storage medium from moving around in the storage portion due to the vibration generated when the roller is used (rotated) by bonding the information storage medium to the inside of the storage portion with a thermosetting resin. As a result, it is possible to more effectively prevent the information storage medium from malfunctioning due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a schematic view showing the roller of the present invention.

[0048] Figure 2 shows Figure 1 a schematic view of the main part of the roller and the operation of storing the storage container and the information storage medium in the storage portion.

[0049] Figure 3 is Figure 2 a cross-sectional schematic view.

[0050] Figure 4 is a schematic view showing one embodiment of the present invention ( Figure 4 (a) is an exploded schematic view showing the relationship between the information storage medium, the cover member, and the storage container, Figure 4 (b) is a cross-sectional schematic view).

[0051] Figure 5 is a schematic view showing another embodiment of the present invention ( Figure 5(a) is an exploded view showing the relationship among the information storage medium, the cover member, and the storage container, Figure 5 (b) is a cross-sectional view).

[0052] Figure 6 is a schematic view showing another embodiment of the present invention ( Figure 6 (a) is an exploded view showing the relationship among the information storage medium, the cover member, the storage container, and the storage portion, Figure 6 (b) is a cross-sectional view).

[0053] Figure 7 is a schematic view showing a state in which a groove portion is provided on the inner side surface of the storage portion (hole portion) in the embodiment of Figure 4 (a) is an exploded view showing the relationship among the information storage medium, the cover member, and the storage container, Figure 7 (b) is a cross-sectional view). Figure 7

[0054] Figure 8 Figure 6 is a schematic view showing a state in which a groove portion is provided on the inner side surface of the storage portion (cylindrical portion) in the embodiment of Figure 8 (a) is an exploded view showing the relationship among the information storage medium, the cover member, the storage container, and the storage portion, Figure 8 (b) is a cross-sectional view).

[0055] Figure 9 Figure 9 Figure 9 is a cross-sectional view showing a storage state in which the information storage medium 3 is bonded (fixed) in the storage portion ( Figure 9 (a) is a cross-sectional view showing a state in which the information storage medium is bonded (fixed) to the bottom of the hole portion, Figure 9 (b) is a cross-sectional view showing a state in which the information storage medium is bonded (fixed) to the bottom of the cylindrical portion, Figure 9 (c) is a cross-sectional view showing a state in which the information storage medium is bonded (fixed) to the concave portion of the storage container).

[0056] Figure 10 is a cross-sectional view showing the arrangement state of the storage portion (core material) and the information storage medium in Test Example 1.

[0057] Figure 11 is a cross-sectional view showing the samples of Examples 1 to 13. DETAILED DESCRIPTION

[0058] Embodiments of the present invention will be described based on the drawings. In addition, the embodiments described below are merely examples of embodying the present invention and do not limit the technical scope of the present invention.

[0059] (Basic Structure)

[0060] First, based on Figures 1 to 3 the structure of the roller 1 of the present invention will be described.

[0061] The roller 1 of the present invention mainly includes a core material 2, an information storage medium 3, and a cover member 4.

[0062] In addition, in Figure 2 and Figure 3 in addition to the above main components, a storage container 5 for storing the information storage medium 3 is also used. Although the storage container 5 is not an essential component in the present invention, as described later, it can more effectively protect the information storage medium 3 and prevent radio wave interference, so it is preferred.

[0063] The type of the roller 1 targeted by the present invention (the type of the coating layer 6 coated on the core material 2) is not particularly limited, and rollers with various coating layers 6 such as metal rollers, sponge rollers, and rubber rollers can be targeted. In addition, the present invention can be applied not only to the roller in which the coating layer 6 is formed on the core material 2 as described above, but also to a roller such as a paper roller or a film roller in which a product is directly wound around the core material 2 without providing a coating layer.

[0064] Moreover, among them, in particular, for an elastic roller (rubber roller, polyurethane roller, sponge roller, etc.) in which an elastomer produced by vulcanization or curing is used as the coating layer 6, it becomes a roller that can more effectively exhibit the technical effects of the present invention.

[0065] Next, based on Figures 1 to 6 each component will be described.

[0066] (Core material)

[0067] The core material 2 used in the present invention is cylindrical and has a storage portion 7 for storing the information storage medium 3.

[0068] It should be noted that, as described above, the core material 2 can be in a form with various coating layers 6 provided, or in a form in which a product is directly wound around the core material 2 without providing a coating layer. Here, when the roller 1 is in a form with a coating layer 6 provided, as Figure 1 and Figure 2 shown, the core material 2 of the present invention includes not only the shaft portion 2a but also the main body portion 2b located between the shaft portion 2a and the coating layer 6.

[0069] In addition, there is no particular limitation on the material of the core material 2, and various materials can be used.

[0070] There is no particular limitation on the form of the storage portion 7, and various forms can be selected according to the environment in which the roller 1 is used.

[0071] Specifically, examples include Figures 1 to 5The form in which the hole portion 7a provided in the core material 2 is used as the storage portion 7, Figure 6 The form in which the cylindrical portion 7b joined to the core material 2 is used as the storage portion 7, etc.

[0072] In addition, in the case of adopting the form in which the hole portion 7a is used as the storage portion 7, if the opening 8 of the storage portion is circular and the bottom portion 9 of the storage portion is hemispherical ( Figure 2 , Figure 3 ), or if the opening is circular and the bottom is inverted conical (not shown), the storage portion 7 can be easily fabricated only by a piercing process (drilling process), and thus this is preferred.

[0073] In addition, in the case of adopting the form in which the cylindrical portion 7b is used as the storage portion 7, if a method of directly joining a pipe cut to an appropriate length to an appropriate position of the core material 2, or a method of joining a component ( Figure 6 (a)) in which a pipe cut to an appropriate length is joined to a flat plate to an appropriate position of the core material 2 after fabrication ( Figure 6 (b)) is adopted, the storage portion 7 can be easily fabricated, and thus this is preferred.

[0074] Furthermore, regarding the form of the storage portion 7, it may also be in a form in which a groove portion 10 or a recess is provided on the inner side surface of the storage portion 7 (hole portion 7a or cylindrical portion 7b). Specifically, as Figure 7 , Figure 8 shown, examples include a form in which a groove portion 10 fabricated by machining the entire circumference of the inner side surface of the hole portion 7a is provided ( Figure 7 ), a form in which a groove portion 10 fabricated by machining the entire circumference of the inner side surface of the cylindrical portion 7b is provided ( Figure 8 ), etc. In addition, in Figure 7 , Figure 8 , a form in which a groove portion 10 is provided on the entire circumference of the inner side surface of the storage portion 7 (hole portion 7a or cylindrical portion 7b) is illustrated, but it is not limited thereto, and it may also be in a form in which a recess fabricated by machining a part of the inner side surface of the storage portion 7 (hole portion 7a or cylindrical portion 7b) is provided (not shown).

[0075] If this method is adopted, when forming the later-described cover member 4, the thermosetting resin used is cured in a state of entering the groove portion 10 or the recess (the cured product of the thermosetting resin fills the groove portion 10 or the recess). Therefore, even when the cover member 4 (the cured product of the thermosetting resin) deteriorates due to the roller being repeatedly exposed to high temperature, high pressure, and high humidity environments, it is possible to more effectively prevent the cover member 4 from falling off the storage portion by the engagement of the cured product of the thermosetting resin filled in the groove portion 10 or the recess, and thus this is preferred.

[0076] The setting position of the storage part 7 in the core material 2 is not particularly limited, and it can be set at any position such as the central part, end part, circumferential surface, end face, etc. of the core material 2 (in the case where the roller 1 has a form with a coating layer 6 provided, it is the shaft part 2a or the main body part 2b).

[0077] Moreover, among them, from the point that it is possible to easily read the roller information input to the information storage medium 3 and from the point that it is possible to easily perform the loading, unloading, replacement, etc. of the information storage medium 3, as Figure 1 , Figure 2 shown, it is preferably set at the end face 11 of the core material (in the case where the roller 1 has a form with a coating layer 6 provided, it is the end face 11a of the shaft part 2a or the end face 11b of the main body part 2b). In addition, when the setting position of the storage part 7 is set at the end face 11 of the core material, in order to maintain the strength of the roller shaft and the balance during roller rotation, it is preferable to set the size (diameter) of the opening 8 of the storage part to 25% or less of the diameter (Φ) of the end face 11 of the core material (especially the end face 11a of the shaft part 2a).

[0078] (Information storage medium)

[0079] The information storage medium 3 used in the present invention stores roller information. Specifically, various storage media such as IC tags, RF tags, RFID tags, etc. can be used. Moreover, among them, if a passive RFID tag is used as the information storage medium 3, since the communication range is narrow, it is possible to prevent misidentification with other rollers. In addition, since it is not necessary to replace the battery, it is possible to extend the service life, and thus it is preferable. Furthermore, since the passive RFID tag involved is difficult to cause radio wave interference, it can be used without being affected by the mutual interference of radio waves with other electronic devices even in a factory where various radio waves are intertwined, and thus it is preferable.

[0080] In addition, in the present invention, the cover 4 responds to external stress, but for the information storage medium 3, it is also preferable to use an information storage medium having heat resistance, pressure resistance, moisture resistance, chemical resistance, etc.

[0081] Specifically, the criterion for determining whether an information storage medium 3 can be used in the invention of this application is that it can maintain the communication function even after undergoing a high-temperature, high-pressure, and high-humidity test (such as a pressure cooker test) under the conditions of 155°C, 100% RH, 0.5 MPa to 0.6 MPa, and 3 hours. That is, the invention of this application takes the cover formed by the cured product of the thermosetting resin as an essential component. Therefore, by simply confirming whether it passes the above high-temperature, high-pressure, and high-humidity test, it is possible to easily find from commercially available information storage media the information storage medium 3 that can be used in the invention of this application for the roller (especially the elastic roller). This is an extremely useful insight in the following aspect: Although in most cases, the conditions of the actual vulcanization process and curing process carried out in the elastic roller are more severe than the above conditions, the above conditions can serve as the determination criterion.

[0082] The storage form of the information storage medium 3 in the storage part 7 (core material 2) is not particularly limited and can be determined according to the type of the information storage medium 3 and the roller used.

[0083] However, when the core material 2 is made of metal, it is necessary to prevent the interference of the radio waves generated between the information storage medium 3 and the storage part 7 (core material 2). Specifically, for the side surface and the upper surface of the information storage medium 3, a certain distance needs to be set between them and the storage part 7 (core material 2).

[0084] More specifically, preferably, the information storage medium 3 is stored in the storage part such that the distance (gap: G) between the side surface 12 of the information storage medium and the inner surface 13 of the storage part is at least 1 mm or more, and the upper surface 14 of the information storage medium is located at a depth (D) within 4 mm from the opening surface 15 of the storage part. It should be noted that the upper limit value of the distance (gap: G) is not particularly limited. However, if the distance (gap: G) becomes too large, the storage part 7 becomes larger, and the processing of the storage part 7 becomes difficult, or the cover 4 becomes larger. Therefore, it is preferably set to 2 mm or less (in the range of 1 mm to 2 mm). In addition, the lower limit value of the depth (D) is not particularly limited. However, if the depth (D) is too shallow, the effect of the cover 4 is reduced. Therefore, it is preferably set to 0.5 mm or more (in the range of 0.5 mm to 4 mm).

[0085] In addition, when the information storage medium 3 is stored in the storage part 7 (core material 2), as Figure 9 shown, the information storage medium 3 can also be adhered (fixed) in the storage part 7 by using an adhesive or the like. Specifically, a form in which the information storage medium 3 is adhered only to the bottom of the hole part 7a provided in the core material 2 can be cited ( Figure 9 (a)), a form in which the information storage medium 3 is adhered to the bottom of the cylindrical part 7b ( Figure 9(b), the form in which the information storage medium 3 is bonded to the concave portion 20 described later when the storage container 5 is used Figure 9 (c), etc.

[0086] If such a form is adopted, even when the information storage medium 3 is repeatedly exposed to vibrations generated during the use of the roller, it is possible to prevent the information storage medium 3 from moving around in the storage portion 7 due to the vibration. As a result, it is possible to more effectively prevent the information storage medium 3 from malfunctioning due to vibration, and thus it is preferable.

[0087] It should be noted that the adhesive used is not particularly limited as long as it is a thermosetting resin. If a thermosetting resin having the same material as the thermosetting resin described later is used, it is possible to more effectively prevent a decrease in the adhesive force even when repeatedly exposed to high temperature, high pressure, and high humidity environments, and thus it is preferable.

[0088] As the roller information stored in the information storage medium 3, the following roller information is listed.

[0089] - Manufacturing number

[0090] - Manufacturing date

[0091] - Date of final maintenance (final recoating)

[0092] - Delivery location

[0093] - Usage location (production line)

[0094] - Type of elastomer

[0095] - Initial film thickness of the coating layer

[0096] - Overall length of the roller

[0097] - Outer diameter of the roller

[0098] - Face length of the roller

[0099] The shape of the information storage medium 3 is not particularly limited, and various shapes can be selected. Moreover, among them, from the viewpoint of ease of manufacturing the storage portion 7 and the cover member 16 described later, as Figures 2 to 6 shown, it is preferably circular (disk-shaped) in a top view. In addition, if the information storage medium 3 is circular (disk-shaped) in a top view, it is possible to suppress the deviation (directivity) of radio waves, and thus it is preferable.

[0100] (Cover member)

[0101] The cover member 4 used in the present invention is formed of a cured product of a thermosetting resin. Specifically, as Figure 2 and Figure 3As shown, the cover 4 is provided above the information storage medium 3 so as to block the opening 8 of the storage portion, for protecting the information storage medium 3 from various stresses (especially in environments of high temperature, high pressure, and high humidity). In addition, it also functions as a sealing material (fixing material) for sealing (fixing) the information storage medium 3 stored in the storage portion 7 within the storage portion 7. Here, although the storage container 5 described later also has the function of protecting the information storage medium 3 from stress, in the present invention, basically the cover 4 functions to protect the information storage medium 3 from stress.

[0102] Therefore, in the present invention, in the absence of the cover 4, the protection ability of the information storage medium 3 disappears.

[0103] In addition, this protection function is particularly remarkable when the roller 1 is an elastic roller (such as a rubber roller, a polyurethane roller, a sponge roller, etc.) having an elastomer made by vulcanization or curing as the coating layer 6. That is, when the roller 1 is an elastic roller, multiple recoatings are performed, but in this case, with the present invention having the cover 4, it is also possible to effectively prevent problems such as peeling, dropping off, and poor communication of the information storage medium 3 from occurring.

[0104] Regarding the material of the cover 4, there is no particular limitation as long as it is a thermosetting resin, and a thermosetting resin having various physical properties can be selected according to the environment in which the roller 1 is used.

[0105] Moreover, among them, when the roller 1 is an elastic roller (such as a rubber roller, a polyurethane roller, a sponge roller, etc.) having an elastomer made by vulcanization or curing as the coating layer 6, it is preferable to use a thermosetting resin having a heat deflection temperature measured according to ASTM D648 or ISO 75 of 130°C or higher, among which 180°C or higher, and further among which 250°C or higher.

[0106] It should be noted that examples of thermosetting resins having such physical properties include epoxy resins, phenolic resins, silicone resins, polyester resins, melamine resins, etc. Among them, epoxy resins and phenolic resins are preferably used.

[0107] There is no particular limitation on the form of the cover 4, and various forms can be selected according to the environment in which the roller 1 is used. Moreover, among them, if it is set to a form of sealing using an adhesive or a putty material, it is possible to block the opening 8 of the storage portion storing the information storage medium 3 without gaps and easily, so it is preferable.

[0108] In addition, usually, the storage and management of the roller 1 are in a state where the roller 1 is laid down ( Figure 1It is carried out in the state as shown [in the figure], so when using a material that cures by hardening, such as an adhesive or putty material, in the cover member 4, it is necessary to use a material that does not flow down to the opening 8 of the storage portion and stays even in the initial state (the state immediately after applying the adhesive or putty material), that is, a material having a certain degree of viscosity even in the initial state. Therefore, when using a material that cures by hardening, such as an adhesive or putty material, in the cover member 4, it is preferable to use a material having a viscosity of 100 Pa·s or more at room temperature (25°C) in the initial state, preferably 1000 Pa·s or more, and further preferably 10000 Pa·s or more.

[0109] In addition, when a groove portion 10 or a concave portion is provided on the inner side surface of the storage portion 7, the shape of the cover member 4, in addition to the shape that closes the opening 8 of the storage portion, as Figures 7 to 9 shown, may also be a shape in which a cured product of a thermosetting resin is filled in the groove portion 10 or the concave portion. If this shape is adopted, even when the cover member 4 (the cured product of the thermosetting resin) deteriorates due to the roller being repeatedly exposed to environments of high temperature, high pressure, and high humidity, the cured product of the thermosetting resin filled in the groove portion 10 or the concave portion catches, and it is possible to more effectively prevent the cover member 4 from falling off the storage portion, so it is preferable.

[0110] Regarding the thickness (T) of the cover member 4, there is no particular limitation, but from the viewpoints of protecting the information storage medium 3 from stress and preventing interference of radio waves generated between the information storage medium 3 and the storage portion 7, the thickness (T) of the cover member 4 is preferably 4 mm or less. In addition, this thickness (T) corresponds to the depth (D) described in

[0045] .

[0111] (Cover member: lid member)

[0112] In addition, regarding the cover member 4, in addition to the above-mentioned shapes (such as adhesives and putty materials), as Figures 2 to 6 shown, a lid member 16 made of plastic or glass (such as quartz glass, lead glass, borosilicate glass) may also be used in combination. If the shape of using this lid member 16 in combination is adopted, it is possible to more effectively protect the information storage medium 3 from stress, and it is possible to make the thickness of the cover member itself thinner, so it is preferable. That is, while more effectively protecting the information storage medium 3 from stress, it is possible to better maintain the communication state of the information storage medium 3.

[0113] In addition, when the cover member 16 is made of a plastic cover member, as described in

[0050] , it is preferable to use a cover member formed by molding a thermosetting resin having physical properties such that the heat deflection temperature measured according to ASTM D648 or ISO 75 is 130 °C or higher, preferably 180 °C or higher, and more preferably 250 °C or higher. That is, if a material made of the same thermosetting resin as that of the cover member 4 (the cured product of the thermosetting resin) is used as the cover member 16, a continuous protective layer of the same material as the cured product of the thermosetting resin provided so as to block the opening 8 of the storage portion is formed, and thus the protection ability of the information storage medium 3 can be further improved.

[0114] It should be noted that examples of the thermosetting resin having such physical properties include epoxy resins, phenolic resins, silicone resins, polyester resins, melamine resins, and the like. Among them, epoxy resins and phenolic resins are preferably used.

[0115] Regarding the shape of the cover member 16, there is no particular limitation, and it is preferably a disk shape that matches the preferred shape of the opening 8 of the storage portion, that is, a circular shape. In addition, as Figure 4 , Figure 6 shown, it is preferably sized to block most of the storage portion 7.

[0116] In addition, regarding the cover member 16, when the storage container 5 is used, the forms shown in Figure 5 (a), Figure 5 (b) can also be adopted. Specifically, it can also be set to a form in which the upper surface 17 of the cover member is coplanar with the upper end portion of the storage container 5 when the cover member 16 is fitted into the storage container 5 and the cover is closed.

[0117] In addition, when the cover member 16 is set to this shape, the cover member 16 does not completely block the storage portion 7, and therefore, compared with the forms shown in Figure 4 , Figure 6 , the function of the entire cover member is reduced, but it has the advantage of being able to further improve the storage property when the information storage medium 3 is stored in the storage container 5.

[0118] Regarding the thickness (t) of the cover member 16, there is no particular limitation, but since it forms a part of the cover member 4, as described in

[0053] , it is preferable to adjust the thickness (t) of the cover member 16 so that the thickness (T) of the entire cover member including the cover member 16 is within 4 mm.

[0119] Moreover, when the information storage medium 3 is the one that has passed the high-temperature, high-pressure, and high-humidity test described in

[0044] , it is preferable to set the thickness (t) of the cover member 16 to be 0.5 mm to 2 mm. On the other hand, when the information storage medium 3 is the one that has not passed the high-temperature, high-pressure, and high-humidity test described in

[0044] , from the viewpoint of protecting the information storage medium from stress, it is necessary to make the thickness (t) of the cover member 16 1 mm or more (preferably 1 mm to 2 mm).

[0120] The above is summarized as follows.

[0121] (1) When using an information storage medium that has passed the high-temperature, high-pressure, and high-humidity test

[0122] The thickness (T) of the entire cover: within 4 mm, the thickness (t) of the cover member: 0.5 mm to 2 mm.

[0123] (2) When using an information storage medium that has not passed the high-temperature, high-pressure, and high-humidity test

[0124] The thickness (T) of the entire cover: within 4 mm, the thickness (t) of the cover member: 1 mm to 2 mm.

[0125] (Storage container)

[0126] In addition, in the present invention, a storage container 5 for storing the information storage medium 3 can also be used. If the storage container 5 is used, the information storage medium 3 can be more effectively protected from various stresses (especially in an environment of high temperature, high pressure, and high humidity), so it is preferable. In addition, when the core material 2 is made of metal, the influence of the core material 2 (metal) can be more effectively excluded, and the radio waves from the information storage medium 3 can be more appropriately transmitted, so it is preferable.

[0127] There is no particular limitation on the material of the storage container 5, and various materials can be selected according to the environment in which the roller 1 is used. Moreover, when the roller 1 is an elastic roller (such as a rubber roller, a polyurethane roller, a sponge roller, etc.) having an elastomer formed by vulcanization or curing as the coating layer 6, similar to the cover member 4, it is preferable to use a thermosetting resin having physical properties such that the heat deflection temperature measured according to ASTM D648 or ISO 75 is 130 °C or higher, among which it is 180 °C or higher, and further among which it is 250 °C or higher for molding.

[0128] It should be noted that as materials having such physical properties, epoxy resins, phenolic resins, silicone resins, polyester resins, melamine resins, etc. can be cited. Among them, epoxy resins and phenolic resins are preferably used.

[0129] There is no particular limitation on the shape of the storage container 5, and various shapes can be selected according to the shape of the storage portion 7 and the environment in which the roller 1 is used. Moreover, among them, as Figures 2 to 6 shown, it is preferably formed to be circular in a top view, the opening 18 of the storage container is circular, and the bottom 19 of the storage container is hemispherical. If it is set to this shape, even when various stresses (especially high-pressure stresses) are applied to the storage container 5, the parts where stress concentration occurs in the storage container 5 can be reduced by the effects of the circular or hemispherical shape. Therefore, it is possible to prevent the occurrence of stress localization parts inside the storage container 5, and the stored information storage medium 3 can be effectively protected from stress.

[0130] In addition, if the shape of the storage container 5 is set to the above shape, it can also be easily and without gaps accommodated in the storage portion 7 made by punching, so it is preferred.

[0131] Furthermore, as Figures 3 to 6 shown, it is preferably formed with a recess 20 for storing the information storage medium 3 inside the storage container 5. According to such a configuration, by simply storing the information storage medium 3 in the recess 20, the information storage medium 3 can be easily arranged at the center of the storage portion 7 without shifting in the radial direction of the storage portion 7, so it is preferred. That is, the situation where the information storage medium 3 can be easily arranged at the center of the storage portion 7 can easily maintain the distance (gap: G) between the side surface 12 of the information storage medium and the inner surface 13 of the storage portion evenly in the radial direction.

[0132] Therefore, if the recess 20 is provided in the storage container 5, a certain distance can be naturally ensured between the information storage medium 3 and the core material 2. As a result, the generation of radio wave interference can be more effectively prevented. In addition, this effect is particularly significant when the core material 2 is made of metal.

[0133] There is no particular limitation on the shape of the recess 20, and it can be determined according to the shape of the stored information storage medium 3. Moreover, among them, as Figures 4 to 6 shown, if it is set to a cylindrical cavity, the parts where stress concentration occurs can be reduced, and in addition, the generation of radio wave interference can be effectively prevented, so it is preferred.

[0134] In addition, regarding the size of the recess, it can be appropriately adjusted according to the size of the stored information storage medium. In addition, if necessary, spacers can also be used.

[0135] The thickness (g) of the storage container 5 is not particularly limited, but from the viewpoints of protecting the information storage medium 3 and preventing radio wave interference, the storage container 5 preferably has a thickness of 1 mm or more. In addition, regarding the measurement position of the thickness (g) in the storage container 5, it is also possible to use the thinnest part of the storage container 5 as a reference, but from the viewpoint of preventing radio wave interference, it is preferably based on the thickness of the thinnest part when the storage container 5 is observed in the radial direction. That is, it is preferably based on the thickness (g1) when the storage container 5 is observed in the radial direction from the side surface 12 of the stored information storage medium. In addition, this thickness (g1) corresponds to the distance (gap: G) described in

[0045] .

[0136] Next, based on Figures 1 to 4 The operation and function of the roller 1 configured as described above will be described.

[0137] First, the information storage medium 3 is stored in the concave portion 20 of the storage container 5.

[0138] Next, the storage container 5 is stored in the storage portion 7 provided in the core material 2 of the roller 1.

[0139] Next, a cover member 16 is attached to the upper portion of the storage container 5 to block the opening 18 of the storage container, and then a covering member 4 (an adhesive or putty material in Figures 2 to 4 is applied to the upper portion thereof, thereby blocking the storage portion 7.

[0140] Finally, the present invention's roller 1 is manufactured by curing the covering member 4.

[0141] Then, as Figure 1 shown, the wireless device 21 is covered over the end portion of the roller 1, and the roller information stored in the information storage medium 3 is read. Additionally, as needed, new roller information is transmitted from the wireless device 21 and stored in the information storage medium 3. Therefore, the roller information can be easily grasped at any time, and quality management, inventory management, etc. of the roller 1 can be efficiently performed.

[0142] In addition, when the roller 1 requires recoating of an elastomer (coating layer 6) such as an elastic roller, even in a contaminated state sent to the manufacturer, the roller information can be easily grasped, and errors during the recoating operation can be effectively prevented.

[0143] Examples

[0144] Next, the roller of the present invention will be described in detail based on examples and comparative examples. In addition, the present invention is not limited to the following examples.

[0145] (Test Example 1: Test on the positional relationship between the information storage medium and the storage portion (core material))

[0146] First, an experiment on the position of the information storage medium within the storage section (core material) was conducted, and this experiment enabled communication between the information storage medium and the core material without causing radio wave interference. Specifically, as Figure 10 shown, a cylindrical cavity (storage section (hole section)) was formed in an iron material imitating the core material, and the information storage medium 3 was stored within this storage section (hole section). By varying variously (1) the distance (gap: G) between the side surface 12 of the information storage medium and the inner surface 13 of the storage section when observed in the radial direction and (2) the depth (D) from the opening surface 15 of the storage section to the upper surface 14 of the information storage medium, samples for each test example were fabricated.

[0147] Then, an experiment was conducted to determine whether the information storage medium could communicate without problems within the storage section (core material). In addition, as evaluation criteria, evaluation was performed based on three criteria: ○: A stable communication state with sufficient radio wave intensity ensured, △: An unstable communication state with weak radio wave intensity, and ×: Poor communication.

[0148] The results are shown in Table 1.

[0149] [Table 1]

[0150]

[0151] From the results, it can be seen that if the information storage medium is stored within the storage section (core material) such that the distance (gap: G) is 1 mm or more and the depth (D) is within 4 mm, the information storage medium can maintain a stable communication state.

[0152] (Test Example 2: Experiment on the Judgment Criteria for Information Storage Media)

[0153] Next, an experiment on the judgment criteria for information storage media that can be used even when exposed to high temperature, high pressure, and high humidity environments was conducted. Specifically, for the following six commercially available information storage media (passive RFID), two experiments were carried out: (1) an experiment under steam vulcanization conditions (155 °C, 100% RH, 0.5 - 0.6 MPa, 3 hours) (high temperature, high pressure, and high humidity experiment) and (2) an experiment under hot water vulcanization conditions (160 °C, hot water immersion, 1.6 MPa, 3 hours), and it was tested whether communication failure occurred after the experiments.

[0154] Information Storage Medium 1 (manufactured by Newland Japan Co., Ltd., model: JOPPD6)

[0155] Information Storage Medium 2 (manufactured by Kyocera Corporation, model: 0502)

[0156] Information Storage Medium 3 (manufactured by Kyocera Corporation, model: 0603)

[0157] Information storage medium 4 (manufactured by Toppan Printing Co., Ltd., model: SMARTRAC)

[0158] Information storage medium 5 (manufactured by Murata Manufacturing Co., Ltd., model: LXTBKZMCMG-010)

[0159] Information storage medium 6 (manufactured by Silence Net Co., Ltd., model: Dot-On XS)

[0160] In addition, as evaluation criteria, evaluation was performed based on three criteria: ○: a communication state with stable radio wave intensity fully ensured; △: an unstable communication state with weak radio wave intensity; ×: poor communication.

[0161] The results are shown in Table 2.

[0162] [Table 2]

[0163]

[0164] From the results, it can be seen that there are information storage media that show poor communication in the test under the condition of heat-resistant water vulcanization but can communicate without problems in the test under the condition of heat-resistant steam vulcanization (high-temperature, high-pressure, and high-humidity test).

[0165] In addition, from the results of Examples 1 to 21 and Example 28 (using information storage medium 6) described later, it can be seen that for an information storage medium that passes the test under the condition of heat-resistant steam vulcanization (high-temperature, high-pressure, and high-humidity test), even if it shows poor communication in the test under the condition of heat-resistant water vulcanization, it can be an information storage medium constituting the present invention. That is, it can be seen that if an information storage medium can pass the test under the condition of heat-resistant steam vulcanization (high-temperature, high-pressure, and high-humidity test), through the synergistic effect of the durability inherent in the information storage medium and the cover, it can be an information storage medium that can be used in the present invention (able to pass 10 durability tests (recoating operations)).

[0166] From the above, it can be seen that the test under the condition of heat-resistant steam vulcanization (155 °C, 100% RH, 0.5 to 0.6 MPa, 3 hours) in (1) rather than the test under the condition of heat-resistant water vulcanization in (2) is appropriate as the determination criterion for an information storage medium that can be used in the present invention.

[0167] In addition, if this determination criterion is used, the options for information storage media that can be used in the present invention (such as options in terms of cost) can be expanded. Therefore, from this perspective, this determination criterion is also a useful view.

[0168] Next, based on Test Example 1 and Test Example 2 above, samples of examples and comparative examples using a core material (accommodation part), an information storage medium, and a cover were produced and evaluated. It should be noted that the actual roller is a very large roller (core material: diameter 2m × length 10m, etc.), so for the examples and comparative examples, samples imitating the structure of the roller were produced and evaluated.

[0169] (Example 1)

[0170] First, by processing a phenolic resin molded body (heat deflection temperature: 250°C (stress: 1.8 MPa)), an accommodation container and a cover with the following dimensions were produced.

[0171] External dimensions of the accommodation container: diameter 10 mm × height 6 mm, with a hemispherical bottom with a radius (R) of 5 mm

[0172] Thickness (g1): 2 mm

[0173] Recess: a cylindrical cavity with a diameter of 6 m × a depth of 4 mm

[0174] External dimensions of the cover: a disk shape with a diameter of 10 mm × thickness (t) of 1 mm

[0175] Next, by perforating a iron material, a hole part (accommodation part) with a diameter of 10 mm, a height of 10 mm, and a hemispherical bottom with a radius (R) of 5 mm was provided.

[0176] Next, as the information storage medium, an information storage medium 6 that passed the high-temperature, high-pressure, and high-humidity test (manufactured by Silence Net Co., Ltd., model: Dot-On XS, disk shape with a diameter of 6 mm × a height of 2.5 mm) was used. Then, a gasket with a thickness of 1.5 mm was placed at the bottom of the recess of the accommodation container, and the above-mentioned information storage medium 6 was placed on the gasket, thereby accommodating the information storage medium in the recess of the accommodation container. Then, the accommodation container was accommodated in the hole part (accommodation part) of the iron material, and the upper part of the accommodation container was blocked with a cover.

[0177] It should be noted that for the hole part (accommodation part), the accommodation container (including the recess), and the cover, by making their surfaces smooth without large irregularities, a form that can easily accommodate (insert) each component is achieved.

[0178] Next, an epoxy adhesive (viscosity: 10000 Pa·s (25°C), heat deflection temperature after curing: 180°C (stress: 1.8 MPa)) was applied to the upper part of the above-mentioned cover in such a way as to block the opening of the hole part (accommodation part) and with a thickness of 3 mm.

[0179] Finally, by curing the epoxy adhesive, Figure 11Sample of Example 1 in which a cover (cured material of epoxy adhesive + cover) with a thickness (T) of 4 mm is formed on the upper part of the information storage medium.

[0180] (Examples 2 to 13)

[0181] Samples of Examples 2 to 13 were produced in the same manner as in Example 1, except that the thickness of the cover (cured product of epoxy adhesive + cover) was changed to the thicknesses described in Table 3.

[0182] (Examples 14 to 21)

[0183] Samples of Examples 14 to 21 were produced in the same manner as in Example 1, except that the cover was not used and the thickness of the epoxy adhesive was changed to the thicknesses described in Table 3.

[0184] (Example 22)

[0185] The information storage medium was changed to Information Storage Medium 1 (manufactured by Newland Japan Co., Ltd., model: JOPPD6, disk shape with a diameter of 6 mm × a height of 4 mm), and no spacer was used. Samples of Example 22 were produced in the same manner as in Example 1 except for this.

[0186] (Examples 23 to 27)

[0187] Samples of Examples 23 to 27 were produced in the same manner as in Example 22, except that the thickness of the cover (cured product of epoxy adhesive + cover) was changed to the thicknesses described in Table 4.

[0188] (Example 28)

[0189] First, an iron pipe with an inner diameter of 10 mm and a thickness of 2.5 mm was cut into a length of 10 mm, and this iron pipe was welded to an iron plate of 60 mm × 25 mm × 2 mm to fabricate a cylindrical part (accommodation part).

[0190] Next, using Information Storage Medium 6 as the information storage medium, this information storage medium was accommodated in the concave part of the accommodation container together with a spacer in the same manner as described in

[0077] . Then, this accommodation container was accommodated in the cylindrical part (accommodation part), and the upper part of the accommodation container was blocked with the cover (thickness: 1 mm) described in

[0075] .

[0191] Next, an epoxy adhesive (viscosity: 10000 Pa·s (25 °C), heat deflection temperature under load after curing: 180 °C (stress: 1.8 MPa)) was applied to the upper part of the above-mentioned cover in such a manner as to block the opening of the cylindrical part (accommodation part) and with a thickness of 3 mm.

[0192] Finally, Example 28 in which a cover (cured product of epoxy adhesive + cover member) having a thickness (T) of 4 mm is formed on the upper part of the information storage medium was manufactured by curing the epoxy adhesive ( Figure 6 the form of (b)).

[0193] (Comparative Example 1)

[0194] A sample of Comparative Example 1 was produced in the same manner as in Example 1 except that the epoxy adhesive was not used.

[0195] (Comparative Example 2)

[0196] A sample of Comparative Example 2 was produced in the same manner as in Example 7 except that the epoxy adhesive was not used.

[0197] (Comparative Examples 3 to 9)

[0198] Samples of Comparative Examples 3 to 9 were produced in the same manner as in Example 22 except that the thickness of the cover (cured product of epoxy adhesive + cover member) was changed to the thicknesses shown in Table 4.

[0199] (Comparative Examples 10 to 17)

[0200] Samples of Comparative Examples 10 to 17 were produced in the same manner as in Example 22 except that the cover member was not used and the thickness of the epoxy adhesive was changed to the thicknesses shown in Table 4.

[0201] (Comparative Example 18)

[0202] A sample of Comparative Example 18 was produced in the same manner as in Example 22 except that the epoxy adhesive was not used.

[0203] (Comparative Example 19)

[0204] A sample of Comparative Example 19 was produced in the same manner as in Example 22 except that the epoxy adhesive was not used and the thickness of the cover member was changed to 0.5 mm.

[0205] (Evaluation method and evaluation results)

[0206] Next, the samples of Examples 1 to 28 and Comparative Examples 1 to 19 produced were evaluated. Specifically, a durability test under multiple vulcanization conditions was carried out to evaluate whether communication failure did not occur in the information storage medium after each test. Regarding the vulcanization conditions, the durability test was carried out under the conditions of 160 °C, warm water immersion, 1.6 MPa, and 5 hours, which are one of the conditions of the actual vulcanization process (warm water vulcanization conditions). In addition, as evaluation criteria, evaluation was carried out based on two criteria: ○: a stable communication state with sufficient radio wave intensity, and ×: an unstable communication state with weak radio wave intensity or communication failure.

[0207] The results are shown in Tables 3 and 4.

[0208] (Table 3)

[0209]

[0210] (Table 4)

[0211]

[0212] As can be seen from Tables 3 and 4, for the samples of the embodiments having the constituent elements of the invention of the present application, even after multiple durability tests, the information storage medium maintains a good communication state.

[0213] For the samples of Examples 1 to 21 and Example 28 using the information storage medium through the high-temperature, high-pressure, and high-humidity test, a good communication state is also maintained after the durability test.

[0214] In particular, from the evaluation results of the samples of Examples 14 to 20, it can be seen that for an information storage medium that has passed the high-temperature, high-pressure, and high-humidity test, if the cover member is composed only of the cured product of the thermosetting resin, it can pass 10 durability tests. It should be noted that for the sample of Example 21 with the thinnest cover member thickness (0.5 mm), it cannot pass 10 durability tests, but it can pass 5 durability tests. Therefore, it can be seen that it becomes a roller that can be fully used as long as a limit is set for the usage period.

[0215] In addition, from the evaluation results of the samples of Examples 22 to 27, it can be seen that even for an information storage medium that has not passed the high-temperature, high-pressure, and high-humidity test, if the cover member is in a form in which a cover with a thickness (t) of 1 mm or more is used in addition to the cured product of the thermosetting resin, although the number of times indicating durability becomes smaller, it can pass the durability test. That is, it can be seen that even for an information storage medium that has not passed the high-temperature, high-pressure, and high-humidity test, by adopting specific constituent elements, it can also become a roller that can be fully used as long as a limit is set for the usage period, similar to the sample of Example 21.

[0216] On the other hand, for the samples of the comparative examples that do not have the constituent elements, they cannot pass the durability test even once, resulting in an unstable communication state and poor communication.

[0217] In particular, from the evaluation results of the samples of Comparative Examples 1 and 2, it can be seen that even for an information storage medium that has passed the high-temperature, high-pressure, and high-humidity test, in the absence of a cover member (cured product of the thermosetting resin), it cannot pass the durability test even once.

[0218] In addition, if the evaluation results of the samples of Comparative Examples 3 to 9 are compared with the evaluation results of the samples of Examples 22 to 27, it can be seen that for information storage media that have not passed the high temperature, high pressure and high humidity test, if the thickness of the cover is 0.5 mm (the thickness of the cover is less than 1 mm), even if the thickness of the entire cover part including the cover is set to the same thickness as the samples of Examples 22 to 27, the durability test cannot be passed once.

[0219] Furthermore, from the evaluation results of the samples of Comparative Examples 10 to 17 and the evaluation results of the samples of Comparative Examples 18 and 19, it can be seen that for information storage media that have not passed the high temperature, high pressure and high humidity test, if the structure of the cover member lacks any of the requirements of "cured material of thermosetting resin" and "cover member with a thickness (t) of 1 mm or more", it cannot pass the durability test once. In particular, from the evaluation results of the sample of Comparative Example 10, it can be seen that when the cover member is set as a structure without a cover member (when it is composed only of a cured material of epoxy adhesive), even if the thickness of the entire cover member is 4 mm, it cannot pass the durability test once. In addition, from the evaluation results of the samples of Comparative Examples 18 and 19, it can be seen that when the cover member is set as a structure of only a cover member (when it is set as a structure without a cured material of epoxy adhesive), it cannot pass the durability test once.

[0220] As described above, when using an information storage medium that has not passed the high temperature, high pressure and high humidity test, in addition to the cover being a cured product of a thermosetting resin, a cover member is also required, and the thickness of the cover member becomes an important factor.

[0221] (Example 29)

[0222] Next, samples were prepared in which a groove was provided on the inner side surface of the storage portion.

[0223] First, a hemispherical hole (housing portion) having a diameter of 10 mm, a height of 10 mm, and a bottom radius (R) of 5 mm was formed by punching an iron material.

[0224] Next, a 1.0 mm deep groove was formed by cutting the entire circumference of the inner side surface of the hole (housing portion) with a depth of 1.0 mm from the opening surface thereof using a high-speed steel cutter with a Φ6 straight cut (manufactured by MINITA CO., LTD.).

[0225] The subsequent steps were carried out in the same manner as in Example 1 to prepare Example 29 (with Figure 7 The morphology of the sample is similar to that of the sample.

[0226] (Example 30)

[0227] Next, a sample is prepared by bonding (fixing) the information storage medium in the storage part.

[0228] First, by performing a punching process on the iron material, a hole part (storage part) having a diameter of 10 mm, a height of 10 mm, and a hemispherical shape with a bottom radius (R) of 5 mm is provided.

[0229] Next, using the storage container and the lid member described in

[0075] , for the information storage medium, information storage medium 6 is used. Instead of the spacer, an epoxy adhesive (viscosity: 10000 Pa·s (25 °C), heat deflection temperature after curing: 180 °C (stress: 1.8 MPa)) is applied in a thickness of 1.5 mm, and then the information storage medium is placed thereon, and the epoxy adhesive is cured, thereby bonding (fixing) the information storage medium to the concave part of the storage container.

[0230] In the subsequent steps, by performing the same steps as in Example 1, a sample of Example 30 (a shape similar to the shape of Figure 9 (c)) is prepared.

[0231] Next, the samples of Example 29 and Example 30 are evaluated.

[0232] Specifically, for the sample of Example 29, evaluation is performed according to the evaluation method and evaluation criteria described in

[0091] . For the sample of Example 30, a vibration testing machine (manufactured by EMIC Co., Ltd., model: F-16000BDH / LA16AW) is used, and a vibration test is performed under the conditions of frequency = 10 to 55 HZ, acceleration = 19.6 m / s 2 (2G), and the number of scanning cycles = 10, and it is evaluated whether there is also no communication failure in the information storage medium after the test. In addition, the evaluation criteria are evaluated according to the same criteria as those described in

[0091] .

[0233] As a result, for the sample of Example 29, a good communication state is maintained even after 10 durability tests. In addition, for the sample of Example 30, a good communication state (○ evaluation) is also maintained after the vibration test.

[0234] Industrial Applicability

[0235] The roller of the present invention can be used for the improvement of efficiency in quality control, inventory management, etc.

[0236] Explanation of Reference Numerals

[0237] 1 Roller

[0238] 2 Core Material

[0239] 2a Core Material (Shaft Portion)

[0240] 2b Core material (main body part)

[0241] 3 Information storage medium

[0242] 4 Cover

[0243] 5 Storage container

[0244] 6 Coating layer

[0245] 7 Storage part

[0246] 7a Storage part (hole part)

[0247] 7b Storage part (cylindrical part)

[0248] 8 Opening of the storage part

[0249] 9 Bottom of the storage part

[0250] 10 Groove part

[0251] 11 End face of the core material

[0252] 11a End face of the core material (shaft part)

[0253] 11b End face of the core material (main body part)

[0254] 12 Side surface of the information storage medium

[0255] 13 Inner surface of the storage part

[0256] 14 Upper surface of the information storage medium

[0257] 15 Opening surface of the storage part

[0258] 16 Cover piece

[0259] 17 Upper surface of the cover piece

[0260] 18 Opening of the storage container

[0261] 19 Bottom of the storage container

[0262] 20 Recessed part

[0263] 21 Wireless machine

[0264] Φ Diameter of the end face of the core material

[0265] D Depth from the opening surface of the storage part to the upper surface of the information storage medium

[0266] G Distance (gap) between the side surface of the information storage medium 3 and the inner surface of the storage part 7

[0267] g Thickness of the storage container

[0268] The thickness of the storage container g1 (equivalent to G)

[0269] The thickness of the cover member T (equivalent to D)

[0270] The thickness of the lid t

Claims

1. A roller, characterized in that, Comprising: A core material, formed of a metal-containing material, provided with a storage portion having an opening; An information storage medium, stored within the storage portion; and A cover member, formed of a cured product of a thermosetting resin, disposed above the information storage medium stored within the storage portion so as to block the opening, The information storage medium is stored within the storage portion such that the side surface is separated from the inner surface of the storage portion by at least 1 mm or more, and is stored within the storage portion such that the upper surface is located at a depth of 0.5 mm to 4 mm from the opening surface of the storage portion, A cover member made of plastic or glass is further provided between the cover member and the information storage medium, The load deflection temperature of the cured product of the thermosetting resin and / or the plastic cover member measured according to ASTM D648 or ISO 75 is 130°C or higher, The information storage medium still maintains the communication function even after undergoing a high temperature, high pressure, and high humidity test under the conditions of 155°C, 100% RH, 0.5 to 0.6 MPa, and 3 hours.

2. The roller according to claim 1, wherein: The thickness of the cover member is 1 mm or more.

3. The roller according to claim 1 or 2, wherein: An elastomer is coated on the core material by vulcanization or curing.

4. The roller according to claim 1 or 2, wherein: The roller further includes a storage container that stores the information storage medium and is stored within the storage portion.

5. The roller according to claim 1 or 2, wherein: The information storage medium is circular when viewed from above.

6. The roller according to claim 1 or 2, wherein: The information storage medium is a passive RFID.

7. The roller according to claim 1 or 2, wherein: A groove portion or a recess portion is provided on the inner side surface of the storage portion, And the thermosetting resin is cured in a state of entering the groove portion or the recess portion.

8. The roller according to claim 1 or 2, wherein: The information storage medium is bonded to the inside of the storage portion by the thermosetting resin.

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