WO2020129890A1 - Looseness detection label and looseness detection method using same - Google Patents

Looseness detection label and looseness detection method using same Download PDF

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Publication number
WO2020129890A1
WO2020129890A1 PCT/JP2019/049146 JP2019049146W WO2020129890A1 WO 2020129890 A1 WO2020129890 A1 WO 2020129890A1 JP 2019049146 W JP2019049146 W JP 2019049146W WO 2020129890 A1 WO2020129890 A1 WO 2020129890A1
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WO
WIPO (PCT)
Prior art keywords
looseness detection
looseness
region
bolt
detection label
Prior art date
Application number
PCT/JP2019/049146
Other languages
French (fr)
Japanese (ja)
Inventor
諒 松保
大輔 都成
夏樹 菰田
武宏 西村
與志 佐藤
Original Assignee
トッパン・フォームズ株式会社
川崎重工業株式会社
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Publication date
Application filed by トッパン・フォームズ株式会社, 川崎重工業株式会社 filed Critical トッパン・フォームズ株式会社
Publication of WO2020129890A1 publication Critical patent/WO2020129890A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier

Definitions

  • the present invention relates to a looseness detection label that detects looseness of a fastening member that is fastened to a tightening target component and that has a polygonal head portion, and a looseness detection method using the looseness detection label.
  • non-contact communication media using RFID technology such as non-contact type IC labels and non-contact type IC tags equipped with IC chips capable of writing and reading information in a non-contact state are excellent. It is rapidly spreading due to its convenience. Therefore, it is considered to use such RFID technology also when detecting a state such as the loosening of the bolt described above.
  • An object of the present invention is to provide a slackness detection label and a slackness detection method using the slackness detection label that can detect the slackness of a tightening member tightened on a tightening target component even if the slackness is small. ..
  • the present invention provides A looseness detection label for detecting looseness of a fastening member having a polygonal head portion, which is fastened to a tightening target component, A sheet having an adhesive layer laminated on one surface, the first region being adhered to the tightening target component by the adhesive layer, and the second region being adhered to the tightening member by the adhesive layer.
  • Base material An antenna formed on one of the first region and the second region of the sheet base material; A looseness detection wiring formed over the first region and the second region of the sheet base material; The sheet and the second region are connected to the antenna and the looseness detection wiring in a region where the antenna is formed, and are placed in a conductive state of the looseness detection wiring.
  • An IC chip for detecting and transmitting the detection result in a contactless manner via the antenna.
  • the first region of the sheet base material is attached to the tightening target component while the tightening member is tightened to the tightening target component
  • the second region of the sheet base material is
  • the sheet base material is distorted between the first area and the second area.
  • the looseness detection wiring is formed on the sheet base material across the first region and the second region, and the looseness detection wiring is in a conductive state when the sheet base material is not distorted. ing.
  • the sheet base material is distorted, the sheet base material is broken by the distortion, and the looseness detection wiring is disconnected and becomes non-conductive. Then, the conduction state of the looseness detection wiring is detected by the IC chip, and the detection result is transmitted in a contactless manner via the antenna. As a result, it is detected that the tightening member tightened on the tightening target component is loose.
  • the present invention utilizes the fact that the sheet base material is broken when the tightening member tightened on the tightening target component is loosened, so that the tightening member tightened on the tightening target component is loosened. It is detected. Thereby, even if the looseness of the tightening member fastened to the tightening target component is small, the looseness can be detected.
  • the tightening member has a polygonal head portion
  • the displacement of the position due to the rotation causing the looseness is the polygonal head portion.
  • the corner is the largest. Therefore, if a part of the looseness detection wiring is formed in the region along the corner of the polygon when the looseness detection label is attached across the tightening target component and the tightening member, When the tightened tightening member is loosened, the looseness detection wiring is easily broken.
  • the looseness detection wiring is formed along at least part of the edge of the sheet base material in the region where the easy-breakage line is provided.
  • the IC chip detects the conduction state of the looseness detection wiring, and the reading means capable of non-contact communication with the IC chip detects it.
  • the processing means connected to the reading means transmits the result in a non-contact manner via the antenna, and the loosening of the tightening member fastened to the tightening target component is performed based on the detection result transmitted from the IC chip to the reading means in a non-contact manner. By detecting, looseness of the tightening member is detected.
  • the present invention utilizes the fact that the sheet base material is broken when the tightening member tightened on the tightening target component is loosened, and therefore the tightening member tightened on the tightening target component is loosened. Detect. Accordingly, even when the tightening member tightened on the tightening target component is slightly loose, the looseness can be detected.
  • the easy-breakage line is provided between the first region and the second region of the sheet base material, loosening occurs in the fastening member fastened to the fastening target component, so that the first When the sheet base material is distorted between the area and the second area, the sheet base material is easily broken by the easy break line, and the looseness detection wiring is more likely to be broken.
  • the IC chip detects a conduction state of the looseness detecting wiring, and a reading means capable of non-contact communication with the IC chip is provided in the IC chip.
  • the non-contact transmission of the detection result via the antenna, the processing means connected to the reading means, based on the detection result non-contact transmission from the IC chip to the reading means, of the tightening member fastened to the tightening target component The looseness of the tightening member can be detected by detecting the looseness.
  • FIG. 1B is a sectional view taken along the line A-A′ shown in FIG. 1A.
  • FIG. 2B is a cross-sectional view taken along the line B-B′ shown in FIG. 1A.
  • FIG. 1B is a cross-sectional view taken along the line C-C′ shown in FIG. 1A.
  • FIG. 3 is a top view showing an example of an adherend to which the looseness detection label shown in FIGS. 1a to 1d is attached. It is a side view of the adherend shown in FIG. 2a.
  • FIG. 3 is a top view showing an example of a state in which the looseness detection label shown in FIGS.
  • FIG. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b. It is the side view seen from the A direction shown in FIG. 3a. An upper surface for explaining the operation when the looseness occurs in the bolt in a state where the looseness detection label shown in FIGS. 1a to 1d is attached across the bolt and the base as shown in FIGS. 3a and 3b. It is a figure. It is the side view seen from the A direction shown in FIG. 4a. In the looseness detection tag shown in FIGS. 1a to 1d, as shown in FIGS. 4a and 4b, a distortion occurs between the attachment area attached to the bolt and the attachment area attached to the base.
  • FIG. 6 is a diagram for explaining the action of FIG.
  • FIG. 3 is a diagram for explaining the effect of the presence of regular hexagonal vertices as corners at the connecting portion between the regular hexagonal region and the rectangular region of the looseness detection label attachment region shown in FIGS. 1a to 1d. Is. FIG.
  • FIG. 3 is a diagram for explaining the effect of the presence of regular hexagonal vertices as corners at the connecting portion between the regular hexagonal region and the rectangular region of the looseness detection label attachment region shown in FIGS. 1a to 1d.
  • FIG. 3 is a diagram for explaining the effect of the presence of regular hexagonal vertices as corners at the connecting portion between the regular hexagonal region and the rectangular region of the looseness detection label attachment region shown in FIGS. 1a to 1d.
  • FIG. 3 is a top view showing another example of a state in which the looseness detection label shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b. It is the side view seen from the A direction shown in FIG. 10a.
  • FIG. 12B is a cross-sectional view taken along the line A-A′ shown in FIG. 12A.
  • 12B is a cross-sectional view taken along the line B-B′ shown in FIG. 12A.
  • FIG. 12C is a sectional view taken along the line C-C′ shown in FIG. 12A.
  • FIG. 1 a is a configuration diagram of an embodiment of the looseness detection label of the present invention viewed from the surface direction.
  • 1b is a cross-sectional view taken along the line A-A' shown in FIG. 1a.
  • FIG. 1c is a sectional view taken along line B-B′ shown in FIG. 1a.
  • FIG. 1d is a cross-sectional view taken along the line C-C′ shown in FIG. 1a.
  • the present embodiment has a bonding area 10a composed of a regular hexagonal area and a rectangular area connected to one side thereof, and a rectangular area connected to the rectangular area of the bonding area 10a.
  • the looseness detection label 1 is composed of a sticking area 10b composed of areas.
  • the protective film 20 is laminated on one surface of the film substrate 10 via the adhesive layer 40, and the spacer 30 and the adhesive layer 50 are laminated in this order on the other surface of the film substrate 10. , Label format.
  • the length of one side in the regular hexagonal region is longer than the length of the side of the rectangular region which is connected to this, Two vertices of a regular hexagon are present as a corner portion 15.
  • the film substrate 10 serves as a sheet base material in the present invention.
  • the film substrate 10 is made of, for example, a PET film having a thickness of 50 ⁇ m.
  • the two antennas 12 and the looseness detection wiring 13 are formed on the surface of the film substrate 10 laminated with the protective film 20, and the IC chip 11 is mounted thereon.
  • Each of the two antennas 12 is formed in a regular hexagonal area of the attachment area 10a on the laminated surface of the film substrate 10 with the protective film 20 so as to draw an arc along the side of the regular hexagon.
  • Each of the two antennas 12 is formed of, for example, a copper foil having a thickness of 18 ⁇ m.
  • the looseness detection wiring 13 is formed on the laminated surface of the film substrate 10 and the protective film 20.
  • the looseness detection wiring 13 is formed of, for example, a copper foil having a thickness of 18 ⁇ m.
  • the looseness detection wiring 13 has a loop shape having one end in the sticking region 10a, extending from there to the sticking region 10b and folded back to have the other end in the sticking region 10a. Thereby, the looseness detection wiring 13 is formed so as to straddle the sticking area 10a and the sticking area 10b.
  • the looseness detection wiring 13 is formed along the edge of the film substrate 10 in the rectangular area of the sticking area 10a and the sticking area 10b.
  • the IC chip 11 is provided with two antenna terminals (not shown) and two looseness detection terminals (not shown) on one surface.
  • the IC chip 11 is mounted on the regular hexagonal area of the attachment area 10 a of the film substrate 10 with the surface on which the antenna terminal and the disconnection detection terminal are provided as the mounting surface.
  • Each antenna terminal of the IC chip 11 is connected to one end of the antenna 12.
  • the looseness detection terminals of the IC chip 11 are connected to the loop-shaped ends of the looseness detection wiring 13, respectively.
  • the IC chip 11 detects the resistance value of the looseness detection wiring 13 by causing a current due to electric power obtained by non-contact communication via the antenna 12 to flow through the looseness detection wiring 13.
  • the IC chip 11 detects the conduction state of the looseness detection wiring 13 based on the resistance value of the looseness detection wiring 13.
  • the IC chip 11 converts the detection result into digital information and transmits it in a contactless manner via the antenna 12. Examples of the IC chip 11 include UCODE G2iM+ manufactured by NXP.
  • the protective film 20 is made of, for example, the same material as the film substrate 10.
  • the protective film 20 is laminated on the entire surface of the film substrate 10 on which the antenna 12 and the looseness detection wiring 13 are laminated by an adhesive layer 40.
  • the spacer 30 is laminated on the regular hexagonal area of the attachment area 10a on the surface opposite to the surface on which the antenna 12 and the looseness detection wiring 13 of the film substrate 10 are laminated.
  • the spacer 30 is made of non-metal.
  • the spacer 30 is made of a soft material such as foamable acrylic resin.
  • the adhesive layer 50 serves as an adhesive layer in the present invention.
  • the adhesive layer 50 is laminated on the entire surface of the film substrate 10 on which the spacers 30 are laminated, for example, by applying an adhesive of TL-85 series manufactured by Lintec Co., Ltd.
  • FIG. 2a is a top view showing an example of an adherend to which the looseness detection label 1 shown in FIGS. 1a to 1d is attached.
  • 2b is a side view of the adherend shown in FIG. 2a.
  • the looseness detection label 1 shown in FIGS. 1a to 1d is, for example, as shown in FIGS. 2a and 2b, a metal base 3 which is a tightening target component, and a metal which is a tightening member to be tightened on the base 3. It is used by being adhered to an adherend composed of the bolt 2 of FIG.
  • a bolt 2 including a head portion 2a formed of a regular hexagon and a screw portion 2b extending from one surface of the head portion 2a has a screw portion 2b in a screw hole formed in a base 3.
  • the bolt 2 is fastened to the base 3 by screwing. At that time, the bolt 2 may be loosened due to vibration applied from the outside.
  • the looseness detection label 1 shown in FIGS. 1a to 1d is used.
  • FIG. 3a is a top view showing an example of a state in which the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b.
  • 3b is a side view seen from the direction A shown in FIG. 3a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
  • a regular hexagonal area of the attachment area 10a is formed on the upper surface of the head portion 2a of the bolt 2 so that the corner 2c of the head portion 2a of the bolt 2 and the corner 15 of the regular hexagonal area of the attachment area 10a are substantially aligned with each other.
  • the rectangular area of the attachment area 10a faces one side surface of the head portion 2a, and the attachment area 10b faces the base 3 so that the looseness detection label 1 is attached to the bolt 2 by the adhesive layer 50. Stick it over the base 3.
  • the sticking area 10a becomes the second area
  • the sticking area 10b becomes the first area
  • the looseness detection label 1 is stuck across the bolt 2 and the base 3. become.
  • the corner 2c of the head portion 2a of the bolt 2 and the corner 15 of the regular hexagonal area of the attachment area 10a are substantially aligned with each other, and the rectangle of the attachment area 10a is formed on one side surface of the head portion 2a. Since the areas of (1) and (2) face each other, in the rectangular area of the sticking area 10a, the edge of the looseness detection label 1 is aligned with the corner 2c of the head 2a of the bolt 2.
  • the looseness detection wiring 13 is formed along the edge of the film substrate 10 in the rectangular area of the attachment area 10a.
  • the looseness detection wiring 13 a region formed along the edge of the film substrate 10 in the rectangular region of the attachment region 10a is formed in a region along the corner 2c of the head portion 2a of the bolt 2. It has been done.
  • the two antennas 12 of the looseness detection label 1 are respectively formed in the regular hexagonal area of the attachment area 10a of the film substrate 10 so as to draw an arc along the edges of the regular hexagon,
  • the head portion 2a of the bolt 2 has an arc shape along the regular hexagonal inscribed circle.
  • the looseness detection wiring 13 is formed in a loop shape to be in a conductive state.
  • FIG. 4a shows that when the looseness detection label 1 shown in FIGS. 1a to 1d is attached across the bolt 2 and the base 3 as shown in FIGS. 3a and 3b, the looseness occurs in the bolt 2.
  • FIG. 6 is a top view for explaining the action of the above.
  • FIG. 4b is a side view seen from the direction A shown in FIG. 4a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
  • FIG. 5 shows a sticking region 10a stuck to the bolt 2 and a sticking region 10b stuck to the base 3 as shown in FIGS. 4a and 4b in the looseness detection tag 1 shown in FIGS. 1a to 1d.
  • FIG. 6 is a diagram for explaining an operation when a distortion occurs between the and.
  • the looseness detection wiring 13 breaks and becomes non-conductive. Then, by detecting the non-conducting state of the looseness detection wiring 13, it can be detected that the bolt 2 fastened to the base 3 is loosened.
  • this embodiment detects that the bolt 2 is loosened by utilizing the fact that the looseness detection label 1 breaks when the bolt 2 fastened to the base 3 is loosened. Thereby, even when the bolt 2 tightened on the base 3 is small in looseness, the looseness can be detected. Since the perforation 14 is formed between the sticking area 10a and the sticking area 10b of the looseness detection label 1, the sticking area 10a stuck to the bolt 2 and the base 3 are stuck together. When a distortion occurs between the sticking area 10b and the sticking area 10b, the looseness detection label 1 is more likely to be broken between the sticking area 10a and the sticking area 10b.
  • the region formed along the edge of the film substrate 10 in the rectangular region of the attachment region 10a is the region along the corner 2c of the head portion 2a of the bolt 2. The effect of being formed will be described.
  • FIG. 6 is a diagram for explaining the displacement of the position due to the rotation of the bolt 2 shown in FIGS. 2a and 2b.
  • the stress due to the distortion causes the stress at the corner portion of the head portion 2a of the bolt 2.
  • the area along 2c is the largest.
  • the slack detecting label 1 is stuck to the slack detecting label 1 by the end sides of the slack detecting label 1 being aligned with the corners 2c of the head portion 2a of the bolt 2.
  • the edges easily break.
  • the looseness detection wiring 13 is formed along the edge of the film substrate 10 in the rectangular area of the attachment area 10a. Therefore, when distortion occurs between the sticking area 10a stuck to the bolt 2 and the sticking area 10b stuck to the base 3, the looseness detection label 1 is likely to be broken due to breakage. .. As a result, the looseness detection wiring 13 is disconnected and becomes non-conductive.
  • FIG. 7 is a diagram showing an example of a system for detecting the looseness of the bolt 2 with respect to the base 3 using the looseness detection label 1 shown in FIGS. 1a to 1d.
  • non-contact communication is possible with the looseness detection label 1.
  • a system having a reader/writer 5 serving as a reading unit and a management personal computer 6 serving as a processing unit connected to the reader/writer 5 via a cable or wirelessly can be considered. It is also possible to use a handy terminal having a built-in processing unit as well as a reading unit as a reader/writer, in which case a management personal computer becomes unnecessary.
  • FIG. 8 is a flowchart for explaining a method of detecting looseness of the bolt 2 with respect to the base 3 by using the looseness detection label 1 shown in FIGS. 1a to 1d in the system shown in FIG.
  • the reader/writer 5 when the reader/writer 5 is brought close to the looseness detection label 1 and the looseness detection label 1 is detected by the reader/writer 5 (step 1), first, the reader/writer Power is supplied from 5 to the looseness detection label 1. Further, an instruction to detect the conduction state of the looseness detection wiring 13 and to transmit the detection result is transmitted from the reader/writer 5 to the looseness detection label 1 (step 2). At this time, a spacer 30 made of a non-metal is laminated on the surface of the film substrate 10 to be attached to the bolt 2 in the regular hexagonal region where the antenna 12 is formed, in the attachment region 10a. Therefore, even when the looseness detection label 1 is attached to the bolt 2 made of metal, the reader/writer 5 can perform non-contact communication with the looseness detection label 1 without being significantly affected by the metal. You can
  • step 3 When the power supplied from the reader/writer 5 is obtained by the looseness detection label 1, and the command transmitted from the reader/writer 5 is received by the IC chip 11 via the antenna 12 of the looseness detection label 1 (step 3 ), current is supplied to the looseness detection wiring 13 by the power supplied from the reader/writer 5.
  • the resistance value of the looseness detection wiring 13 is detected using the supplied current. As a result, the conduction state of the looseness detection wiring 13 is detected (step 4).
  • the looseness detection label 1 is attached to the bolt 2 and the bolt 2 is not loosened as shown in FIGS. 3a and 3b, the looseness detection wiring 13 is in a conductive state. Therefore, in the IC chip 11, the resistance value of the looseness detection wiring 13 itself is detected.
  • the IC chip 11 if the detected resistance value is the resistance value of the looseness detection wiring 13 itself, it is determined that the looseness detection wiring 13 is in the conductive state.
  • the determination result is converted into digital information by the IC chip 11 as a detection result of the conduction state of the looseness detection wiring 13, and is transmitted to the reader/writer 5 through the antenna 12 in a non-contact manner (step 5).
  • the resistance value detected by the IC chip 11 when the looseness detection wiring 13 is in a non-conductive state is almost infinite as described later. Therefore, in the IC chip 11, the resistance value for determining that the looseness detection wiring 13 is in the conductive state may be not the resistance value of the looseness detection wiring 13 itself, but may be a certain threshold value or less.
  • the looseness detection label 1 is attached to the bolt 2, and the looseness detection label 1 is broken as shown in FIG. 6 due to the looseness of the bolt 2 as shown in FIGS.
  • the looseness detection wiring 13 is in a non-conductive state. In this state, even if a current is supplied to the looseness detection wiring 13 by the power supplied from the reader/writer 5, the looseness detection wiring 13 is in a non-conducting state, so that the looseness detection wiring 13 has a current. Does not flow. As a result, the resistance value detected by the IC chip 11 becomes almost infinite.
  • the IC chip 11 when the detected resistance value is almost infinite, it is determined that the looseness detection wiring 13 is in the non-conduction state.
  • the determination result is converted into digital information by the IC chip 11 as a detection result of the conduction state of the looseness detection wiring 13, and is transmitted to the reader/writer 5 through the antenna 12 in a contactless manner.
  • the resistance value detected by the IC chip 11 is almost infinite when the looseness detection wiring 13 is non-conductive. Therefore, in the IC chip 11, the resistance value for determining that the looseness detection wiring 13 is in the non-conducting state is not substantially infinite, and is equal to or larger than a certain threshold value larger than the resistance value of the looseness detection wiring 13 itself. May be used.
  • the conduction state of the looseness detection wiring 13 detected by the looseness detection label 1 is transmitted in a contactless manner via the antenna 12.
  • the detection result received by the reader/writer 5 is the management personal computer. 6 (step 7).
  • the looseness detection label 1 in the management personal computer 6 is transmitted to the reader/writer 5 in a non-contact manner, and the management personal computer 6
  • the detection result transferred to it is judged whether or not the bolt 2 is loosened (step 9).
  • the looseness detection wiring 13 is in the conductive state, it is determined that the bolt 2 is not loosened, and the looseness detection wiring is detected.
  • 13 is in a non-conducting state, it is determined that the bolt 2 is loose.
  • a part of the looseness detection wiring 13 for detecting the looseness of the bolt 2 fastened to the base 3 is attached to the looseness detection label 1 across the bolt 2 and the base 3.
  • the bolt 2 is formed in a region along the corner 2c of the head portion 2a where the displacement of the position is maximized when the bolt 2 is loosened. Therefore, when the bolt 2 fastened to the base 3 is loosened, the looseness detection wiring 13 is easily broken. Thereby, even if the looseness of the bolt 2 is small, the looseness can be detected.
  • the looseness detection label 1 configured in this way can be used, for example, in a bogie of the Shinkansen to detect looseness of a bolt that fixes the bogie.
  • the spacer 30 is made of a soft material such as foamable acrylic resin, even if the looseness detection label 1 is blown or dropped by vibration while the Shinkansen is running, the looseness detection label 1 It is possible to reduce the damage caused by 1 hitting the human body or the like.
  • a regular hexagonal apex is present as a corner portion 15 at the connecting portion between the regular hexagonal region and the rectangular region of the sticking region 10a of the looseness detection label 1 shown in FIGS. 1a to 1d. It is a figure for explaining the effect by having.
  • the looseness detection label 1 is attached to the bolt 2 such that the end side of the rectangular area of the attachment area 10a that is attached to the side surface of the head portion 2a of the bolt 2 is along the corner 2c of the bolt 2. It is easy to attach the base 2 and the base 3 when the size of the regular hexagon of the upper surface of the head portion 2a of the bolt 2 is substantially equal to the size of the regular hexagon of the attachment area 10a as shown in FIG. 9a. is there. However, when the size of the regular hexagon on the upper surface of the head portion 2a of the bolt 2 is larger than the size of the regular hexagon of the attachment area 10a, it may be difficult.
  • the regular hexagonal apex is present as the corner portion 15 at the connecting portion between the regular hexagonal area and the rectangular area of the attachment area 10a.
  • FIG. 10a is a top view showing another example of a state in which the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b.
  • 10b is a side view seen from the direction A shown in FIG. 10a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
  • the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b and used for looseness detection of the bolt 2, as shown in FIGS. 10a and 10b
  • the looseness detection label 1 is laid across the bolt 2 and the base 3 by the adhesive layer 50 so that the sticking region 10b faces one side surface of the head portion 2a of the bolt 2 and the sticking region 10a faces the base 3. You may attach it. That is, in this example, the sticking area 10a becomes the first area, the sticking area 10b becomes the second area, and the looseness detection label 1 is stuck across the bolt 2 and the base 3. become.
  • the looseness detection label 1 is adhered across the bolt 2 and the base 3 so that the end side of the attachment area 10b is along the corner 2c of the head portion 2a of the bolt 2, whereby the looseness detection wiring is formed.
  • a part of the area formed along the end side of the attachment area 10b of 13 is formed in the area along the corner 2c of the head portion 2a of the bolt 2.
  • the looseness detection wiring 13 is formed in a loop shape to be in a conductive state.
  • FIG. 11a shows that when the looseness detection label 1 shown in FIGS. 1a to 1d is attached across the bolt 2 and the base 3 as shown in FIGS. 10a and 10b, the bolt 2 is loosened.
  • FIG. 6 is a top view for explaining the action of the above.
  • 11b is a side view seen from the direction A shown in FIG. 11a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
  • the looseness detection label 1 is broken from its edge similarly to the above. .. Along with that, the looseness detection wiring 13 is broken, so that it becomes non-conductive. Then, by detecting that the looseness detection wiring 13 is in the non-conducting state, it is detected that the bolt 2 is loosened with respect to the base 3.
  • a part of the looseness detection wiring 13 for detecting the looseness of the bolt 2 fastened to the base 3 is in a state in which the looseness detection label 1 is attached across the bolt 2 and the base 3.
  • the bolt 2 is formed in a region along the corner 2c of the head portion 2a where the displacement of the position is maximized when the bolt 2 is loosened. Therefore, when the bolt 2 fastened to the base 3 is loosened, the looseness detection wiring 13 is easily broken. Thereby, even if the looseness of the bolt 2 is small, the looseness can be detected.
  • FIG. 12a is a configuration diagram of another embodiment of the looseness detection label of the present invention viewed from the surface direction.
  • FIG. 12b is a sectional view taken along line AA′ shown in FIG. 12a.
  • FIG. 12c is a sectional view taken along line BB′ shown in FIG. 12a.
  • 12d is a cross-sectional view taken along the line CC′ shown in FIG. 12a.
  • the looseness detection wiring 113 is attached to the rectangular area of the attachment area 110a and the attachment area 110b as compared with the one shown in FIGS. 1a to 1d.
  • the looseness detection label 101 is different in that it is formed near one of the two edges of the film substrate 110 extending in the connecting direction of the area 110a and the attachment area 110b.
  • the edges along which the looseness detection wiring 113 extends are the corners of the head portion 2a of the bolt 2.
  • a part of the looseness detection wiring 113 is formed in a region along the corner 2c of the head portion 2a. Accordingly, when the bolt 2 fastened to the base 3 is loosened, the looseness detection wiring 113 is easily broken, and the looseness can be detected even when the bolt 2 is small in looseness.
  • the case where the three perforations 14, 114 are provided as the breakable lines has been described as an example, but the number of the perforations 14, 114 is not limited to three.
  • the number of the perforations 14, 114 is not limited to three.
  • the washer is inserted, between the head portion 2a of the bolt 2 and the washer, and between the washer and the seat surface of the base 3.
  • the looseness detection labels 1 and 101 are arranged so that the perforations face each other at a position where relative displacement due to loosening occurs depending on each size. By sticking, it is possible to detect looseness due to the bolts 2 of each size. Thereby, even when there are a plurality of sizes of the bolt 2 to which the looseness detection labels 1 and 101 are attached, one type of looseness detection label is used without using a plurality of types of looseness detection labels in which the formation positions of the perforations 14 and 114 are different from each other. Looseness can be detected by the detection label, and the cost of the looseness detection label can be reduced.
  • the perforation lines 14 and 114 have been described as an example of the easy-to-break line, but it is easy to break by performing slit processing or punching processing so as to avoid the looseness detection wires 13 and 113. Lines may be constructed.

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Abstract

The present invention comprises: a film substrate 10 having attachment areas 10a, 10b attached to a fastening target component and a fastening member, respectively; an antenna 12 formed in the attachment area 10a of the film substrate 10; a looseness detection wiring 13 formed over the attachment areas 10a, 10b of the film substrate 10; and an IC chip 11 which is disposed in the attachment area 10a of the film substrate 10 while being connected to the antenna 12 and the looseness detection wiring 13, detects the conduction state of the looseness detection wiring 13, and transmits the detection result through the antenna 12 in a non-contact manner.

Description

緩み検知ラベル及びこれを用いた緩み検知方法Looseness detection label and looseness detection method using the same
　本発明は、締め付け対象部品に締め付けられた、多角形のヘッド部を具備する締め付け部材の緩みを検知する緩み検知ラベル及びこれを用いた緩み検知方法に関する。 The present invention relates to a looseness detection label that detects looseness of a fastening member that is fastened to a tightening target component and that has a polygonal head portion, and a looseness detection method using the looseness detection label.
　一般に、鉄道等の車両においては、走行中にボルトが外れた場合に大きな事故に発展する可能性が高い。そのため、従来より、打音検査やチェックマークによる目視検査を熟練作業者が定期的に行うことで、ボルトに緩みが生じていないかを検査している。ところが、このような検査では、作業者の熟練度や人手不足等の人的要因による点検ミスが発生する虞がある。そこで、センサを用いることでボルトの緩みを検査することが考えられるが、大掛かりな装置や、専用のボルトや座金、治具等が必要となってしまう。 In general, in vehicles such as railroads, there is a high possibility that a large accident will occur if the bolts come off during running. Therefore, conventionally, a skilled worker regularly performs a hammering sound inspection and a visual inspection with a check mark to inspect whether the bolt is loose. However, in such an inspection, an inspection error may occur due to human factors such as the degree of skill of the operator and lack of manpower. Therefore, it is conceivable to inspect the bolt for looseness by using a sensor, but it requires a large-scale device, a dedicated bolt, a washer, a jig, and the like.
　近年、非接触状態にて情報の書き込みや読み出しを行うことが可能なＩＣチップが搭載された非接触型ＩＣラベルや非接触型ＩＣタグ等のＲＦＩＤ技術を利用した非接触通信媒体が、その優れた利便性から急速な普及が進みつつある。そこで、上述したボルトの緩みのような状態を検知する場合にも、このようなＲＦＩＤ技術を利用することが考えられている。 In recent years, non-contact communication media using RFID technology such as non-contact type IC labels and non-contact type IC tags equipped with IC chips capable of writing and reading information in a non-contact state are excellent. It is rapidly spreading due to its convenience. Therefore, it is considered to use such RFID technology also when detecting a state such as the loosening of the bolt described above.
　例えば、特許文献１には、ボルトのキャップ部分にＩＣタグを取り付けるとともに、ボルトが締め付けられる部材に固定されたリングに、その一部に開口部を有する金属等から構成された導体片を取り付ける技術が開示されている。この技術では、ボルトに緩みが生じていない場合は、ＩＣタグが開口部に対向することでＩＣタグに対する読み取りを可能とし、ボルトに緩みが生じた場合は、ボルトが回転することでＩＣタグが開口部に対向しなくなってＩＣタグに対する読み取りを不可能とし、それにより、ボルトの緩みを検知する。この技術を用いることで、大掛かりな装置や、専用のボルトや座金、治具等を必要とすることなく、ボルトの緩み等の状態を検知することができるようになる。 For example, in Japanese Patent Application Laid-Open No. 2004-242242, a technique of attaching an IC tag to a cap portion of a bolt and attaching a conductor piece made of metal or the like having an opening portion to a ring fixed to a member to which the bolt is tightened is attached. Is disclosed. In this technology, when the bolt is not loosened, the IC tag faces the opening so that the IC tag can be read. When the bolt is loosened, the bolt is rotated and the IC tag is rotated. The IC tag cannot be read because it does not face the opening, and the looseness of the bolt is detected. By using this technique, it becomes possible to detect the looseness of the bolts without the need for a large-scale device, dedicated bolts, washers, jigs, or the like.
特許第５３２４３２５号公報Japanese Patent No. 5324325
　しかしながら、特許文献１に開示された技術においては、ボルトの緩みが小さいと、ＩＣタグの一部が導体片の開口部に対向し続け、ＩＣタグに対する読み取りが可能な状態のままとなる場合がある。その場合、ボルトが緩んでいないと判断されてしまうという問題点がある。 However, in the technique disclosed in Patent Document 1, if the looseness of the bolt is small, a part of the IC tag may continue to face the opening of the conductor piece, and the IC tag may remain readable. is there. In that case, there is a problem that it is determined that the bolt is not loose.
　本発明は、締め付け対象部品に締め付けられた締め付け部材の緩みが小さな場合であってもその緩みを検知することができる、緩み検知ラベル及びこれを用いた緩み検知方法を提供することを目的とする。 An object of the present invention is to provide a slackness detection label and a slackness detection method using the slackness detection label that can detect the slackness of a tightening member tightened on a tightening target component even if the slackness is small. ..
　上記目的を達成するために本発明は、
　締め付け対象部品に締め付けられた、多角形のヘッド部を具備する締め付け部材の緩みを検知する緩み検知ラベルであって、
　一方の面に接着層が積層され、前記接着層によって前記締め付け対象部品に貼着される第１の領域と、前記接着層によって前記締め付け部材に貼着される第２の領域とを具備するシート基材と、
　前記シート基材の前記第１の領域と第２の領域とのいずれか一方に形成されたアンテナと、
　前記シート基材の前記第１の領域と前記第２の領域とに跨って形成された緩み検知用配線と、
　前記シート基材の前記第１の領域と前記第２の領域とのうち前記アンテナが形成された領域に前記アンテナ及び緩み検知用配線と接続されて配置され、前記緩み検知用配線の導通状態を検出し、その検出結果を前記アンテナを介して非接触送信するＩＣチップとを有する。 In order to achieve the above object, the present invention provides
A looseness detection label for detecting looseness of a fastening member having a polygonal head portion, which is fastened to a tightening target component,
A sheet having an adhesive layer laminated on one surface, the first region being adhered to the tightening target component by the adhesive layer, and the second region being adhered to the tightening member by the adhesive layer. Base material,
An antenna formed on one of the first region and the second region of the sheet base material;
A looseness detection wiring formed over the first region and the second region of the sheet base material;
The sheet and the second region are connected to the antenna and the looseness detection wiring in a region where the antenna is formed, and are placed in a conductive state of the looseness detection wiring. An IC chip for detecting and transmitting the detection result in a contactless manner via the antenna.
　上記のように構成された本発明においては、締め付け部材が締め付け対象部品に締め付けられた状態で、シート基材の第１の領域が締め付け対象部品に貼着されるとともに、シート基材の第２の領域が締め付け部材に貼着され、その後、締め付け対象部品に締め付けられた締め付け部材に緩みが発生すると、第１の領域と第２の領域との間にてシート基材に歪みが生じる。シート基材には、第１の領域と第２の領域とに跨って緩み検知用配線が形成されており、シート基材に歪みが生じていない状態においては緩み検知用配線が導通状態となっている。シート基材に歪みが生じると、その歪みによってシート基材が破断することで緩み検知用配線が断線して非導通状態となる。そして、ＩＣチップによって緩み検知用配線の導通状態が検出され、その検出結果がアンテナを介して非接触送信される。それにより、締め付け対象部品に締め付けられた締め付け部材に緩みが発生していることが検知されることになる。 In the present invention configured as described above, the first region of the sheet base material is attached to the tightening target component while the tightening member is tightened to the tightening target component, and the second region of the sheet base material is When the area of (1) is attached to the tightening member and then the tightening member tightened to the tightening target component is loosened, the sheet base material is distorted between the first area and the second area. The looseness detection wiring is formed on the sheet base material across the first region and the second region, and the looseness detection wiring is in a conductive state when the sheet base material is not distorted. ing. When the sheet base material is distorted, the sheet base material is broken by the distortion, and the looseness detection wiring is disconnected and becomes non-conductive. Then, the conduction state of the looseness detection wiring is detected by the IC chip, and the detection result is transmitted in a contactless manner via the antenna. As a result, it is detected that the tightening member tightened on the tightening target component is loose.
　このように、本発明は、締め付け対象部品に締め付けられた締め付け部材に緩みが生じた場合にシート基材が破断することを利用して、締め付け対象部品に締め付けられた締め付け部材に緩みが発生していることを検知する。それにより、締め付け対象部品に締め付けられた締め付け部材の緩みが小さな場合であってもその緩みを検知することができる。 As described above, the present invention utilizes the fact that the sheet base material is broken when the tightening member tightened on the tightening target component is loosened, so that the tightening member tightened on the tightening target component is loosened. It is detected. Thereby, even if the looseness of the tightening member fastened to the tightening target component is small, the looseness can be detected.
　また、締め付け部材が多角形のヘッド部を具備するものにおいては、締め付け対象部品に締め付けられた締め付け部材に緩みが発生した場合、その緩みを生じさせる回転による位置の変位は、多角形のヘッド部の角部が最も大きなものとなる。そのため、緩み検知用配線の一部が、緩み検知ラベルが締め付け対象部品と締め付け部材とに跨って貼着された場合に多角形の角部に沿う領域に形成されていれば、締め付け対象部品に締め付けられた締め付け部材に緩みが発生した場合に緩み検知用配線が断線しやすくなる。 Further, in the case where the tightening member has a polygonal head portion, when loosening occurs in the tightening member that is fastened to the tightening target component, the displacement of the position due to the rotation causing the looseness is the polygonal head portion. The corner is the largest. Therefore, if a part of the looseness detection wiring is formed in the region along the corner of the polygon when the looseness detection label is attached across the tightening target component and the tightening member, When the tightened tightening member is loosened, the looseness detection wiring is easily broken.
　また、シート基材の第１の領域と第２の領域との間に破断容易線が設けられていれば、締め付け対象部品に締め付けられた締め付け部材に緩みが発生することで第１の領域と第２の領域との間にてシート基材に歪みが生じた場合に、シート基材が破断容易線によって容易に破断して緩み検知用配線がさらに断線しやすくなる。 In addition, if an easy-breakage line is provided between the first region and the second region of the sheet base material, loosening occurs in the fastening member fastened to the fastening target component and When the sheet base material is distorted between the second region and the second area, the sheet base material is easily broken by the easy-breakage line, and the looseness detection wiring is more likely to be broken.
　また、そのような構成としては、緩み検知用配線が、破断容易線が設けられた領域においてはその少なくとも一部がシート基材の端辺に沿って形成されている構成が考えられる。 Also, as such a configuration, it is conceivable that the looseness detection wiring is formed along at least part of the edge of the sheet base material in the region where the easy-breakage line is provided.
　このような緩み検知ラベルを用いた緩み検知方法においては、ＩＣチップが、緩み検知用配線の導通状態を検出し、ＩＣチップに対して非接触通信が可能な読取手段が、ＩＣチップに、検出結果をアンテナを介して非接触送信させ、読取手段に接続された処理手段が、ＩＣチップから読取手段に非接触送信された検出結果に基づいて、締め付け対象部品に締め付けられた締め付け部材の緩みを検知することにより、締め付け部材の緩みが検出されることになる。 In the looseness detection method using such a looseness detection label, the IC chip detects the conduction state of the looseness detection wiring, and the reading means capable of non-contact communication with the IC chip detects it. The processing means connected to the reading means transmits the result in a non-contact manner via the antenna, and the loosening of the tightening member fastened to the tightening target component is performed based on the detection result transmitted from the IC chip to the reading means in a non-contact manner. By detecting, looseness of the tightening member is detected.
　本発明は、締め付け対象部品に締め付けられた締め付け部材に緩みが生じた場合にシート基材が破断することを利用して、締め付け対象部品に締め付けられた締め付け部材に緩みが発生していることを検知する。これにより、締め付け対象部品に締め付けられた締め付け部材の緩みが小さな場合であってもその緩みを検知することができる。 The present invention utilizes the fact that the sheet base material is broken when the tightening member tightened on the tightening target component is loosened, and therefore the tightening member tightened on the tightening target component is loosened. Detect. Accordingly, even when the tightening member tightened on the tightening target component is slightly loose, the looseness can be detected.
　また、緩み検知用配線の一部が、緩み検知ラベルが締め付け対象部品と締め付け部材とに跨って貼着された場合に締め付け部材の多角形の角部に沿う領域に形成されているものにおいては、締め付け部材の多角形の角部に沿う領域において、締め付け対象部品に締め付けられた締め付け部材に緩みが発生した場合に位置の変位が最も大きくなるため、締め付け対象部品に締め付けられた締め付け部材に緩みが発生した場合に緩み検知用配線が断線しやすくなる。 Further, in the case where a part of the looseness detection wiring is formed in the region along the polygonal corner of the tightening member when the looseness detection label is attached across the tightening target component and the tightening member, , In the area along the polygonal corner of the tightening member, when the tightening member tightened on the tightening target part is loosened, the displacement of the position becomes the largest, so the tightening member tightened on the tightening target part is loosened. If this occurs, the looseness detection wiring is likely to break.
　また、シート基材の第１の領域と第２の領域との間に破断容易線が設けられているものにおいては、締め付け対象部品に締め付けられた締め付け部材に緩みが発生することで第１の領域と第２の領域との間にてシート基材に歪みが生じた場合に、シート基材が破断容易線によって容易に破断して緩み検知用配線がさらに断線しやすくなる。 Further, in the case where the easy-breakage line is provided between the first region and the second region of the sheet base material, loosening occurs in the fastening member fastened to the fastening target component, so that the first When the sheet base material is distorted between the area and the second area, the sheet base material is easily broken by the easy break line, and the looseness detection wiring is more likely to be broken.
　また、このような緩み検知ラベルを用いた緩み検知方法としては、ＩＣチップが、緩み検知用配線の導通状態を検出し、ＩＣチップに対して非接触通信が可能な読取手段が、ＩＣチップに、検出結果をアンテナを介して非接触送信させ、読取手段に接続された処理手段が、ＩＣチップから読取手段に非接触送信された検出結果に基づいて、締め付け対象部品に締め付けられた締め付け部材の緩みを検知することにより、締め付け部材の緩みを検出することができる。 Further, as a looseness detecting method using such a looseness detecting label, the IC chip detects a conduction state of the looseness detecting wiring, and a reading means capable of non-contact communication with the IC chip is provided in the IC chip. , The non-contact transmission of the detection result via the antenna, the processing means connected to the reading means, based on the detection result non-contact transmission from the IC chip to the reading means, of the tightening member fastened to the tightening target component The looseness of the tightening member can be detected by detecting the looseness.
本発明の緩み検知ラベルの実施の一形態を表面方向から見た構成図である。It is the block diagram which looked at one Embodiment of the looseness detection label of this invention from the surface direction. 図１ａに示したＡ－Ａ’断面図である。FIG. 1B is a sectional view taken along the line A-A′ shown in FIG. 1A. 図１ａに示したＢ－Ｂ’断面図である。FIG. 2B is a cross-sectional view taken along the line B-B′ shown in FIG. 1A. 図１ａに示したＣ－Ｃ’断面図である。FIG. 1B is a cross-sectional view taken along the line C-C′ shown in FIG. 1A. 図１ａ～図１ｄに示した緩み検知ラベルが貼着される被着体の一例を示す上面図である。FIG. 3 is a top view showing an example of an adherend to which the looseness detection label shown in FIGS. 1a to 1d is attached. 図２ａに示した被着体の側面図である。It is a side view of the adherend shown in FIG. 2a. 図１ａ～図１ｄに示した緩み検知ラベルが図２ａ及び図２ｂに示した被着体に貼着された状態の一例を示す上面図である。FIG. 3 is a top view showing an example of a state in which the looseness detection label shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b. 図３ａに示すＡ方向から見た側面図である。It is the side view seen from the A direction shown in FIG. 3a. 図１ａ～図１ｄに示した緩み検知ラベルが図３ａ及び図３ｂに示したようにボルトと土台とに跨って貼着された状態においてボルトに緩みが生じた際の作用を説明するための上面図である。An upper surface for explaining the operation when the looseness occurs in the bolt in a state where the looseness detection label shown in FIGS. 1a to 1d is attached across the bolt and the base as shown in FIGS. 3a and 3b. It is a figure. 図４ａに示すＡ方向から見た側面図である。It is the side view seen from the A direction shown in FIG. 4a. 図１ａ～図１ｄに示した緩み検知タグにおいて図４ａ及び図４ｂに示したようにボルトに貼着された貼着領域と土台に貼着された貼着領域との間に歪みが生じた場合の作用を説明するための図である。In the looseness detection tag shown in FIGS. 1a to 1d, as shown in FIGS. 4a and 4b, a distortion occurs between the attachment area attached to the bolt and the attachment area attached to the base. FIG. 6 is a diagram for explaining the action of FIG. 図２ａ及び図２ｂに示したボルトが回転することによる位置の変位を説明するための図である。It is a figure for demonstrating the displacement of the position by rotating the bolt shown in FIG. 2a and FIG. 2b. 図１ａ～図１ｄに示した緩み検知ラベルを用いて土台に対するボルトの緩みを検知するためのシステムの一例を示す図である。It is a figure which shows an example of the system for detecting the looseness of the bolt with respect to a base using the looseness detection label shown in FIGS. 1a-1d. 図７に示したシステムにおいて図１ａ～図１ｄに示した緩み検知ラベルを用いて土台に対するボルトの緩みを検知する方法を説明するためのフローチャートである。9 is a flowchart for explaining a method of detecting looseness of a bolt with respect to a base using the looseness detection label shown in FIGS. 1a to 1d in the system shown in FIG. 7. 図１ａ～図１ｄに示した緩み検知ラベルの貼着領域の正六角形の領域と長方形の領域との連接部分に正六角形の頂点が角部として存在していることによる効果を説明するための図である。FIG. 3 is a diagram for explaining the effect of the presence of regular hexagonal vertices as corners at the connecting portion between the regular hexagonal region and the rectangular region of the looseness detection label attachment region shown in FIGS. 1a to 1d. Is. 図１ａ～図１ｄに示した緩み検知ラベルの貼着領域の正六角形の領域と長方形の領域との連接部分に正六角形の頂点が角部として存在していることによる効果を説明するための図である。FIG. 3 is a diagram for explaining the effect of the presence of regular hexagonal vertices as corners at the connecting portion between the regular hexagonal region and the rectangular region of the looseness detection label attachment region shown in FIGS. 1a to 1d. Is. 図１ａ～図１ｄに示した緩み検知ラベルの貼着領域の正六角形の領域と長方形の領域との連接部分に正六角形の頂点が角部として存在していることによる効果を説明するための図である。FIG. 3 is a diagram for explaining the effect of the presence of regular hexagonal vertices as corners at the connecting portion between the regular hexagonal region and the rectangular region of the looseness detection label attachment region shown in FIGS. 1a to 1d. Is. 図１ａ～図１ｄに示した緩み検知ラベルが図２ａ及び図２ｂに示した被着体に貼着された状態の他の例を示す上面図である。FIG. 3 is a top view showing another example of a state in which the looseness detection label shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b. 図１０ａに示すＡ方向から見た側面図である。It is the side view seen from the A direction shown in FIG. 10a. 図１ａ～図１ｄに示した緩み検知ラベルが図１０ａ及び図１０ｂに示したようにボルトと土台とに跨って貼着された状態においてボルトに緩みが生じた際の作用を説明するための上面図である。An upper surface for explaining the action when the looseness occurs in the bolt in the state where the looseness detection label shown in FIGS. 1a to 1d is attached across the bolt and the base as shown in FIGS. 10a and 10b. It is a figure. 図１１ａに示すＡ方向から見た側面図である。It is the side view seen from the A direction shown in FIG. 11a. 本発明の緩み検知ラベルの他の実施の形態を表面方向から見た構成図である。It is the block diagram which looked at other embodiment of the looseness detection label of this invention from the surface direction. 図１２ａに示したＡ－Ａ’断面図である。FIG. 12B is a cross-sectional view taken along the line A-A′ shown in FIG. 12A. 図１２ａに示したＢ－Ｂ’断面図である。12B is a cross-sectional view taken along the line B-B′ shown in FIG. 12A. 図１２ａに示したＣ－Ｃ’断面図である。FIG. 12C is a sectional view taken along the line C-C′ shown in FIG. 12A.
　以下に、本発明の実施の形態について図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
　図１ａは、本発明の緩み検知ラベルの実施の一形態を表面方向から見た構成図である。図１ｂは、図１ａに示したＡ－Ａ’断面図である。図１ｃは、図１ａに示したＢ－Ｂ’断面図である。図１ｄは、図１ａに示したＣ－Ｃ’断面図である。 FIG. 1 a is a configuration diagram of an embodiment of the looseness detection label of the present invention viewed from the surface direction. 1b is a cross-sectional view taken along the line A-A' shown in FIG. 1a. FIG. 1c is a sectional view taken along line B-B′ shown in FIG. 1a. FIG. 1d is a cross-sectional view taken along the line C-C′ shown in FIG. 1a.
　本形態は図１ａ～図１ｄに示すように、正六角形の領域とその一辺に連接した長方形の領域とから構成された貼着領域１０ａと、貼着領域１０ａの長方形の領域に連接した長方形の領域から構成された貼着領域１０ｂとから構成される緩み検知ラベル１である。緩み検知ラベル１は、フィルム基板１０の一方の面に、粘着層４０を介して保護フィルム２０が積層され、フィルム基板１０の他方の面に、スペーサ３０と粘着層５０とがこの順で積層され、ラベル形態となっている。また、貼着領域１０ａの正六角形の領域と長方形の領域との連接部分には、正六角形の領域における一辺の長さが、長方形の領域のこれに連接する辺の長さよりも長いことにより、正六角形の２つの頂点が角部１５として存在している。 As shown in FIGS. 1a to 1d, the present embodiment has a bonding area 10a composed of a regular hexagonal area and a rectangular area connected to one side thereof, and a rectangular area connected to the rectangular area of the bonding area 10a. The looseness detection label 1 is composed of a sticking area 10b composed of areas. In the looseness detection label 1, the protective film 20 is laminated on one surface of the film substrate 10 via the adhesive layer 40, and the spacer 30 and the adhesive layer 50 are laminated in this order on the other surface of the film substrate 10. , Label format. Further, in the connecting portion of the regular hexagonal region and the rectangular region of the pasting region 10a, the length of one side in the regular hexagonal region is longer than the length of the side of the rectangular region which is connected to this, Two vertices of a regular hexagon are present as a corner portion 15.
　フィルム基板１０は、本願発明におけるシート基材となるものである。フィルム基板１０は、例えば、厚さが５０μｍのＰＥＴフィルムから構成されている。フィルム基板１０の保護フィルム２０との積層面には、２つのアンテナ１２及び緩み検知用配線１３が形成されているとともに、ＩＣチップ１１が搭載されている。 The film substrate 10 serves as a sheet base material in the present invention. The film substrate 10 is made of, for example, a PET film having a thickness of 50 μm. The two antennas 12 and the looseness detection wiring 13 are formed on the surface of the film substrate 10 laminated with the protective film 20, and the IC chip 11 is mounted thereon.
　２つのアンテナ１２はそれぞれ、フィルム基板１０の保護フィルム２０との積層面のうち貼着領域１０ａの正六角形の領域に、正六角形の端辺に沿って円弧を描くように形成されている。２つのアンテナ１２はそれぞれ、例えば、厚さが１８μｍの銅箔によって形成されている。 Each of the two antennas 12 is formed in a regular hexagonal area of the attachment area 10a on the laminated surface of the film substrate 10 with the protective film 20 so as to draw an arc along the side of the regular hexagon. Each of the two antennas 12 is formed of, for example, a copper foil having a thickness of 18 μm.
　緩み検知用配線１３は、フィルム基板１０の保護フィルム２０との積層面に形成されている。緩み検知用配線１３は、例えば、厚さが１８μｍの銅箔によって形成されている。緩み検知用配線１３は、貼着領域１０ａに一端部を有し、そこから貼着領域１０ｂに延びて折り返してきて貼着領域１０ａに他端部を有するループ状となっている。これにより、緩み検知用配線１３は、貼着領域１０ａと貼着領域１０ｂとに跨って形成されている。また、緩み検知用配線１３は、貼着領域１０ａの長方形の領域と貼着領域１０ｂにおいては、フィルム基板１０の端辺に沿って形成されている。 The looseness detection wiring 13 is formed on the laminated surface of the film substrate 10 and the protective film 20. The looseness detection wiring 13 is formed of, for example, a copper foil having a thickness of 18 μm. The looseness detection wiring 13 has a loop shape having one end in the sticking region 10a, extending from there to the sticking region 10b and folded back to have the other end in the sticking region 10a. Thereby, the looseness detection wiring 13 is formed so as to straddle the sticking area 10a and the sticking area 10b. The looseness detection wiring 13 is formed along the edge of the film substrate 10 in the rectangular area of the sticking area 10a and the sticking area 10b.
　ＩＣチップ１１は、一方の面に、２つのアンテナ端子（不図示）と、２つの緩み検知端子（不図示）とが設けられている。ＩＣチップ１１は、これらアンテナ端子及び断線検知端子が設けられた面が搭載面となって、フィルム基板１０の貼着領域１０ａの正六角形の領域に搭載されている。ＩＣチップ１１のアンテナ端子はそれぞれ、アンテナ１２の一端に接続されている。ＩＣチップ１１の緩み検知端子は、緩み検知用配線１３のループ状の両端部にそれぞれ接続されている。ＩＣチップ１１は、アンテナ１２を介した非接触通信によって得た電力による電流を緩み検知用配線１３に流すことで緩み検知用配線１３の抵抗値を検出する。ＩＣチップ１１は、緩み検知用配線１３の抵抗値に基づいて緩み検知用配線１３の導通状態を検出する。ＩＣチップ１１は、その検出結果をデジタル情報に変換してアンテナ１２を介して非接触送信する。ＩＣチップ１１としては、例えば、NXP社のUCODE G2iM+が挙げられる。 The IC chip 11 is provided with two antenna terminals (not shown) and two looseness detection terminals (not shown) on one surface. The IC chip 11 is mounted on the regular hexagonal area of the attachment area 10 a of the film substrate 10 with the surface on which the antenna terminal and the disconnection detection terminal are provided as the mounting surface. Each antenna terminal of the IC chip 11 is connected to one end of the antenna 12. The looseness detection terminals of the IC chip 11 are connected to the loop-shaped ends of the looseness detection wiring 13, respectively. The IC chip 11 detects the resistance value of the looseness detection wiring 13 by causing a current due to electric power obtained by non-contact communication via the antenna 12 to flow through the looseness detection wiring 13. The IC chip 11 detects the conduction state of the looseness detection wiring 13 based on the resistance value of the looseness detection wiring 13. The IC chip 11 converts the detection result into digital information and transmits it in a contactless manner via the antenna 12. Examples of the IC chip 11 include UCODE G2iM+ manufactured by NXP.
　保護フィルム２０は、例えば、フィルム基板１０と同一の材料から構成されている。保護フィルム２０は、フィルム基板１０のアンテナ１２及び緩み検知用配線１３が積層された面の全面に粘着層４０によって積層されている。 The protective film 20 is made of, for example, the same material as the film substrate 10. The protective film 20 is laminated on the entire surface of the film substrate 10 on which the antenna 12 and the looseness detection wiring 13 are laminated by an adhesive layer 40.
　スペーサ３０は、フィルム基板１０のアンテナ１２及び緩み検知用配線１３が積層された面とは反対側の面のうち貼着領域１０ａの正六角形の領域に積層されている。スペーサ３０は、非金属から構成されている。スペーサ３０は、例えば、発泡性アクリル樹脂等のように柔らかい材料から構成されている。 The spacer 30 is laminated on the regular hexagonal area of the attachment area 10a on the surface opposite to the surface on which the antenna 12 and the looseness detection wiring 13 of the film substrate 10 are laminated. The spacer 30 is made of non-metal. The spacer 30 is made of a soft material such as foamable acrylic resin.
　粘着層５０は、本願発明における接着層となるものである。粘着層５０は、フィルム基板１０のスペーサ３０が積層された面の全面に、例えば、リンテック社製のＴＬ－８５シリーズの粘着剤を塗布することで積層されている。 The adhesive layer 50 serves as an adhesive layer in the present invention. The adhesive layer 50 is laminated on the entire surface of the film substrate 10 on which the spacers 30 are laminated, for example, by applying an adhesive of TL-85 series manufactured by Lintec Co., Ltd.
　このように積層されたフィルム基板１０、保護フィルム２０及び粘着層４０，５０には、貼着領域１０ａと貼着領域１０ｂとの間に、表裏貫通した破断容易線となる３本のミシン目１４が形成されている。なお、ミシン目１４は、ミシン目１４を構成するカット部が緩み検知用配線１３を断線しないように形成されている。 In the film substrate 10, the protective film 20, and the adhesive layers 40 and 50 laminated in this way, three perforations 14 which are easy-to-break lines penetrating through the front and back are provided between the adhesive area 10a and the adhesive area 10b. Are formed. The perforations 14 are formed so that the cut portion forming the perforations 14 does not break the looseness detection wiring 13.
　以下に、上記のように構成された緩み検知ラベル１の利用方法及びその際の作用について説明する。 The following is a description of how to use the looseness detection label 1 configured as described above and the operation at that time.
　図２ａは、図１ａ～図１ｄに示した緩み検知ラベル１が貼着される被着体の一例を示す上面図である。図２ｂは、図２ａに示した被着体の側面図である。 FIG. 2a is a top view showing an example of an adherend to which the looseness detection label 1 shown in FIGS. 1a to 1d is attached. 2b is a side view of the adherend shown in FIG. 2a.
　図１ａ～図１ｄに示した緩み検知ラベル１は、例えば、図２ａ及び図２ｂに示すように、締め付け対象部品となる金属製の土台３と、この土台３に締め付けられる締め付け部材となる金属製のボルト２とから構成された被着体に貼着されて使用される。この被着体は、正六角形から構成されたヘッド部２ａとヘッド部２ａの一方の面から伸びたねじ部２ｂとから構成されるボルト２が、土台３に形成されたねじ孔にねじ部２ｂがねじ込まれることで、ボルト２が土台３に締め付けられることになる。その際、外部から加わる振動等によってボルト２が緩む可能性がある。その緩みを検知するために図１ａ～図１ｄに示した緩み検知ラベル１が利用されることになる。 The looseness detection label 1 shown in FIGS. 1a to 1d is, for example, as shown in FIGS. 2a and 2b, a metal base 3 which is a tightening target component, and a metal which is a tightening member to be tightened on the base 3. It is used by being adhered to an adherend composed of the bolt 2 of FIG. In this adherend, a bolt 2 including a head portion 2a formed of a regular hexagon and a screw portion 2b extending from one surface of the head portion 2a has a screw portion 2b in a screw hole formed in a base 3. The bolt 2 is fastened to the base 3 by screwing. At that time, the bolt 2 may be loosened due to vibration applied from the outside. In order to detect the looseness, the looseness detection label 1 shown in FIGS. 1a to 1d is used.
　図３ａは、図１ａ～図１ｄに示した緩み検知ラベル１が図２ａ及び図２ｂに示した被着体に貼着された状態の一例を示す上面図である。図３ｂは、図３ａに示すＡ方向から見た側面図である。なお、説明がわかりにくくならないように緩み検知ラベル１の積層構造等の詳細な構成の図示は省略してある。 FIG. 3a is a top view showing an example of a state in which the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b. 3b is a side view seen from the direction A shown in FIG. 3a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
　図１ａ～図１ｄに示した緩み検知ラベル１を図２ａ及び図２ｂに示した被着体に貼着してボルト２の緩み検知に利用する場合は、図３ａ及び図３ｂに示すように、ボルト２のヘッド部２ａの角部２ｃと貼着領域１０ａの正六角形の領域の角部１５とがほぼ合わさるようにして、ボルト２のヘッド部２ａの上面に貼着領域１０ａの正六角形の領域が対向するとともに、ヘッド部２ａの１つの側面に貼着領域１０ａの長方形の領域が対向し、土台３に貼着領域１０ｂが対向するように、緩み検知ラベル１を粘着層５０によってボルト２と土台３とに跨って貼着する。すなわち、本例においては、貼着領域１０ａが第２の領域となり、貼着領域１０ｂが第１の領域となって、緩み検知ラベル１がボルト２と土台３とに跨って貼着されることになる。この際、ボルト２のヘッド部２ａの角部２ｃと貼着領域１０ａの正六角形の領域の角部１５とがほぼ合わさるような状態で、ヘッド部２ａの１つの側面に貼着領域１０ａの長方形の領域が対向することで、貼着領域１０ａの長方形の領域においては、緩み検知ラベル１の端辺がボルト２のヘッド部２ａの角部２ｃに沿うことになる。緩み検知用配線１３は、貼着領域１０ａの長方形の領域においては、フィルム基板１０の端辺に沿って形成されている。そのため、緩み検知用配線１３のうち、貼着領域１０ａの長方形の領域にてフィルム基板１０の端辺に沿って形成された領域が、ボルト２のヘッド部２ａの角部２ｃに沿う領域に形成されたものとなる。この際、緩み検知ラベル１の２つのアンテナ１２がそれぞれ、フィルム基板１０の貼着領域１０ａの正六角形の領域に、正六角形の端辺に沿って円弧を描くように形成されていることにより、ボルト２のヘッド部２ａの正六角形の内接円に沿う円弧状のものとなる。それにより、緩み検知ラベル１がボルト２と土台３とに跨って貼着された際、アンテナ１２がボルト２のヘッド部２ａからはみ出ることなく、アンテナ１２の長さを確保することができ、より長い通信距離を確保することができる。 When the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b and used to detect the looseness of the bolt 2, as shown in FIGS. 3a and 3b, A regular hexagonal area of the attachment area 10a is formed on the upper surface of the head portion 2a of the bolt 2 so that the corner 2c of the head portion 2a of the bolt 2 and the corner 15 of the regular hexagonal area of the attachment area 10a are substantially aligned with each other. And the rectangular area of the attachment area 10a faces one side surface of the head portion 2a, and the attachment area 10b faces the base 3 so that the looseness detection label 1 is attached to the bolt 2 by the adhesive layer 50. Stick it over the base 3. That is, in this example, the sticking area 10a becomes the second area, the sticking area 10b becomes the first area, and the looseness detection label 1 is stuck across the bolt 2 and the base 3. become. At this time, the corner 2c of the head portion 2a of the bolt 2 and the corner 15 of the regular hexagonal area of the attachment area 10a are substantially aligned with each other, and the rectangle of the attachment area 10a is formed on one side surface of the head portion 2a. Since the areas of (1) and (2) face each other, in the rectangular area of the sticking area 10a, the edge of the looseness detection label 1 is aligned with the corner 2c of the head 2a of the bolt 2. The looseness detection wiring 13 is formed along the edge of the film substrate 10 in the rectangular area of the attachment area 10a. Therefore, in the looseness detection wiring 13, a region formed along the edge of the film substrate 10 in the rectangular region of the attachment region 10a is formed in a region along the corner 2c of the head portion 2a of the bolt 2. It has been done. At this time, the two antennas 12 of the looseness detection label 1 are respectively formed in the regular hexagonal area of the attachment area 10a of the film substrate 10 so as to draw an arc along the edges of the regular hexagon, The head portion 2a of the bolt 2 has an arc shape along the regular hexagonal inscribed circle. Thereby, when the looseness detection label 1 is attached across the bolt 2 and the base 3, the antenna 12 does not protrude from the head portion 2a of the bolt 2 and the length of the antenna 12 can be secured, A long communication distance can be secured.
　このようにしてボルト２と土台３とに跨って貼着された緩み検知ラベル１においては、緩み検知用配線１３が、ループ状に形成されていることで導通状態となっている。 In the looseness detection label 1 attached in this manner across the bolt 2 and the base 3, the looseness detection wiring 13 is formed in a loop shape to be in a conductive state.
　図４ａは、図１ａ～図１ｄに示した緩み検知ラベル１が図３ａ及び図３ｂに示したようにボルト２と土台３とに跨って貼着された状態においてボルト２に緩みが生じた際の作用を説明するための上面図である。図４ｂは、図４ａに示すＡ方向から見た側面図である。なお、説明がわかりにくくならないように緩み検知ラベル１の積層構造等の詳細な構成の図示は省略してある。 FIG. 4a shows that when the looseness detection label 1 shown in FIGS. 1a to 1d is attached across the bolt 2 and the base 3 as shown in FIGS. 3a and 3b, the looseness occurs in the bolt 2. FIG. 6 is a top view for explaining the action of the above. FIG. 4b is a side view seen from the direction A shown in FIG. 4a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
　図１ａ～図１ｄに示した緩み検知ラベル１が図３ａ及び図３ｂに示すようにボルト２と土台３とに跨って貼着された状態において、外部から加わる振動等によってボルト２が図４ａに示すように反時計回りに回転して土台３に対して緩みが生じると、図４ｂに示すように、ボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じる。 In the state where the looseness detection label 1 shown in FIGS. 1a to 1d is attached over the bolt 2 and the base 3 as shown in FIGS. 3a and 3b, the bolt 2 is moved to the state shown in FIG. As shown in FIG. 4B, when the base 3 is rotated counterclockwise and loosens, the sticking area 10a stuck to the bolt 2 and the sticking area 10b stuck to the base 3 are shown in FIG. 4b. Distortion occurs between and.
　図５は、図１ａ～図１ｄに示した緩み検知タグ１において図４ａ及び図４ｂに示したようにボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じた場合の作用を説明するための図である。 FIG. 5 shows a sticking region 10a stuck to the bolt 2 and a sticking region 10b stuck to the base 3 as shown in FIGS. 4a and 4b in the looseness detection tag 1 shown in FIGS. 1a to 1d. FIG. 6 is a diagram for explaining an operation when a distortion occurs between the and.
　上述したように、ボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じた場合、図５に示すように、その歪みによって緩み検知ラベル１が破断し、それに伴って緩み検知用配線１３が断線して非導通状態となる。そして、この緩み検知用配線１３の非導通状態を検出することで、土台３に締め付けられたボルト２に緩みが生じた旨が検知されることになる。 As described above, when a distortion occurs between the sticking area 10a stuck to the bolt 2 and the sticking area 10b stuck to the base 3, as shown in FIG. 5, the looseness is detected by the distortion. The label 1 breaks, and accordingly, the looseness detection wiring 13 breaks and becomes non-conductive. Then, by detecting the non-conducting state of the looseness detection wiring 13, it can be detected that the bolt 2 fastened to the base 3 is loosened.
　このように、本形態は、土台３に締め付けられたボルト２に緩みが生じた場合に緩み検知ラベル１が破断することを利用して、ボルト２に緩みが発生していることを検知する。これにより、土台３に締め付けられたボルト２の緩みが小さな場合であってもその緩みを検知することができる。なお、緩み検知ラベル１の貼着領域１０ａと貼着領域１０ｂとの間には、ミシン目１４が形成されているため、ボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じた場合に、緩み検知ラベル１が、貼着領域１０ａと貼着領域１０ｂとの間にてさらに破断しやすくなる。 In this way, this embodiment detects that the bolt 2 is loosened by utilizing the fact that the looseness detection label 1 breaks when the bolt 2 fastened to the base 3 is loosened. Thereby, even when the bolt 2 tightened on the base 3 is small in looseness, the looseness can be detected. Since the perforation 14 is formed between the sticking area 10a and the sticking area 10b of the looseness detection label 1, the sticking area 10a stuck to the bolt 2 and the base 3 are stuck together. When a distortion occurs between the sticking area 10b and the sticking area 10b, the looseness detection label 1 is more likely to be broken between the sticking area 10a and the sticking area 10b.
　ここで、緩み検知用配線１３のうち、貼着領域１０ａの長方形の領域にてフィルム基板１０の端辺に沿って形成された領域が、ボルト２のヘッド部２ａの角部２ｃに沿う領域に形成されていることによる効果について説明する。 Here, in the looseness detection wiring 13, the region formed along the edge of the film substrate 10 in the rectangular region of the attachment region 10a is the region along the corner 2c of the head portion 2a of the bolt 2. The effect of being formed will be described.
　図６は、図２ａ及び図２ｂに示したボルト２が回転することによる位置の変位を説明するための図である。 FIG. 6 is a diagram for explaining the displacement of the position due to the rotation of the bolt 2 shown in FIGS. 2a and 2b.
　図２ａ及び図２ｂに示したボルト２が回転した場合、図６に示すように、ボルト２のヘッド部２ａの正六角形を構成する辺上の点Ａは、図中Ａ’に変位する。一方、ボルト２のヘッド部２ａの角部２ｃの点Ｂは図中Ｂ’に変位する。このように、ボルト２のヘッド部２ａの角部２ｃの変位は、ヘッド部２ａの正六角形を構成する辺上の点の変位よりも大きなものとなる。 When the bolt 2 shown in FIGS. 2a and 2b is rotated, the point A on the side forming the regular hexagon of the head portion 2a of the bolt 2 is displaced to A'in the figure, as shown in FIG. On the other hand, the point B of the corner portion 2c of the head portion 2a of the bolt 2 is displaced to B'in the figure. As described above, the displacement of the corner portion 2c of the head portion 2a of the bolt 2 is larger than the displacement of the points on the sides forming the regular hexagon of the head portion 2a.
　そのため、上述したようにボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じた場合、その歪みによる応力はボルト２のヘッド部２ａの角部２ｃに沿う領域が最も大きなものとなる。 Therefore, as described above, when strain occurs between the sticking region 10a stuck to the bolt 2 and the sticking region 10b stuck to the base 3, the stress caused by the strain causes the stress of the head portion 2a of the bolt 2 to rise. The region along the corner portion 2c of is the largest.
　そのため、ボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じた場合に、その歪みによる応力はボルト２のヘッド部２ａの角部２ｃに沿う領域が最も大きなものとなる。それにより、貼着領域１０ａの長方形の領域においては、緩み検知ラベル１の端辺がボルト２のヘッド部２ａの角部２ｃに沿うことで、緩み検知ラベル１が、緩み検知ラベル１の貼着領域１０ａと貼着領域１０ｂとの間にてその端辺から破断しやすくなる。 Therefore, when distortion occurs between the adhesion area 10a adhered to the bolt 2 and the adhesion area 10b adhered to the base 3, the stress due to the distortion causes the stress at the corner portion of the head portion 2a of the bolt 2. The area along 2c is the largest. As a result, in the rectangular area of the sticking area 10a, the slack detecting label 1 is stuck to the slack detecting label 1 by the end sides of the slack detecting label 1 being aligned with the corners 2c of the head portion 2a of the bolt 2. Between the area 10a and the sticking area 10b, the edges easily break.
　そして、上述したように、緩み検知用配線１３は、貼着領域１０ａの長方形の領域においては、フィルム基板１０の端辺に沿って形成されている。そのため、ボルト２に貼着された貼着領域１０ａと土台３に貼着された貼着領域１０ｂとの間に歪みが生じた場合、緩み検知ラベル１の破断に伴って断線しやすくなっている。それにより、緩み検知用配線１３が断線して非導通状態となる。 Then, as described above, the looseness detection wiring 13 is formed along the edge of the film substrate 10 in the rectangular area of the attachment area 10a. Therefore, when distortion occurs between the sticking area 10a stuck to the bolt 2 and the sticking area 10b stuck to the base 3, the looseness detection label 1 is likely to be broken due to breakage. .. As a result, the looseness detection wiring 13 is disconnected and becomes non-conductive.
　以下に、上述した作用を利用して土台３に対するボルト２の緩みを検知する具体的な方法について説明する。 A specific method for detecting the looseness of the bolt 2 with respect to the base 3 using the above-described action will be described below.
　図７は、図１ａ～図１ｄに示した緩み検知ラベル１を用いて土台３に対するボルト２の緩みを検知するためのシステムの一例を示す図である。 FIG. 7 is a diagram showing an example of a system for detecting the looseness of the bolt 2 with respect to the base 3 using the looseness detection label 1 shown in FIGS. 1a to 1d.
　図１ａ～図１ｄに示した緩み検知ラベル１を用いて土台３に対するボルト２の緩みを検知するためのシステムとしては、図７に示すように、緩み検知ラベル１に対して非接触通信が可能な読取手段となるリーダライタ５と、リーダライタ５と有線または無線を介して接続された処理手段となる管理用パソコン６とを有するシステムが考えられる。なお、読取手段のみならず処理手段が内蔵されたハンディターミナルをリーダライタとして用いることも考えられ、その場合、管理用パソコンが不要となる。 As a system for detecting the looseness of the bolt 2 with respect to the base 3 using the looseness detection label 1 shown in FIGS. 1a to 1d, as shown in FIG. 7, non-contact communication is possible with the looseness detection label 1. A system having a reader/writer 5 serving as a reading unit and a management personal computer 6 serving as a processing unit connected to the reader/writer 5 via a cable or wirelessly can be considered. It is also possible to use a handy terminal having a built-in processing unit as well as a reading unit as a reader/writer, in which case a management personal computer becomes unnecessary.
　図８は、図７に示したシステムにおいて図１ａ～図１ｄに示した緩み検知ラベル１を用いて土台３に対するボルト２の緩みを検知する方法を説明するためのフローチャートである。 FIG. 8 is a flowchart for explaining a method of detecting looseness of the bolt 2 with respect to the base 3 by using the looseness detection label 1 shown in FIGS. 1a to 1d in the system shown in FIG.
　図１ａ～図１ｄに示した緩み検知ラベル１においては、リーダライタ５が緩み検知ラベル１に近接され、リーダライタ５にて緩み検知ラベル１が検出されると（ステップ１）、まず、リーダライタ５から、緩み検知ラベル１に電力が供給される。また、緩み検知用配線１３の導通状態の検出及びその検出結果の送信をする旨の命令がリーダライタ５から緩み検知ラベル１に対して送信される（ステップ２）。この際、フィルム基板１０の貼着領域１０ａのうち、アンテナ１２が形成された正六角形の領域のボルト２との貼着面に、非金属から構成されたスペーサ３０が積層されている。そのため、緩み検知ラベル１が金属から構成されたボルト２に貼着された場合でも、金属による影響を大きく受けることなくリーダライタ５にて緩み検知ラベル１との間にて非接触通信を行うことができる。 In the looseness detection label 1 shown in FIGS. 1a to 1d, when the reader/writer 5 is brought close to the looseness detection label 1 and the looseness detection label 1 is detected by the reader/writer 5 (step 1), first, the reader/writer Power is supplied from 5 to the looseness detection label 1. Further, an instruction to detect the conduction state of the looseness detection wiring 13 and to transmit the detection result is transmitted from the reader/writer 5 to the looseness detection label 1 (step 2). At this time, a spacer 30 made of a non-metal is laminated on the surface of the film substrate 10 to be attached to the bolt 2 in the regular hexagonal region where the antenna 12 is formed, in the attachment region 10a. Therefore, even when the looseness detection label 1 is attached to the bolt 2 made of metal, the reader/writer 5 can perform non-contact communication with the looseness detection label 1 without being significantly affected by the metal. You can
　リーダライタ５から供給された電力が緩み検知ラベル１にて得られるとともに、リーダライタ５から送信された命令が緩み検知ラベル１のアンテナ１２を介してＩＣチップ１１にて受信されると（ステップ３）、リーダライタ５から供給された電力によって緩み検知用配線１３に電流が供給される。 When the power supplied from the reader/writer 5 is obtained by the looseness detection label 1, and the command transmitted from the reader/writer 5 is received by the IC chip 11 via the antenna 12 of the looseness detection label 1 (step 3 ), current is supplied to the looseness detection wiring 13 by the power supplied from the reader/writer 5.
　ＩＣチップ１１においては、供給された電流を用いて緩み検知用配線１３の抵抗値が検出される。これにより、緩み検知用配線１３の導通状態が検出されることになる（ステップ４）。ここで、緩み検知ラベル１がボルト２に貼着され、図３ａ及び図３ｂに示したようにボルト２が緩んでいない場合は、緩み検知用配線１３が導通状態となっている。そのため、ＩＣチップ１１においては緩み検知用配線１３自体の抵抗値が検出されることになる。 In the IC chip 11, the resistance value of the looseness detection wiring 13 is detected using the supplied current. As a result, the conduction state of the looseness detection wiring 13 is detected (step 4). Here, when the looseness detection label 1 is attached to the bolt 2 and the bolt 2 is not loosened as shown in FIGS. 3a and 3b, the looseness detection wiring 13 is in a conductive state. Therefore, in the IC chip 11, the resistance value of the looseness detection wiring 13 itself is detected.
　ＩＣチップ１１においては、検出された抵抗値が緩み検知用配線１３自体の抵抗値である場合は、緩み検知用配線１３が導通状態にあると判断される。その判断結果は、緩み検知用配線１３の導通状態の検出結果としてＩＣチップ１１にてデジタル情報に変換されてアンテナ１２を介してリーダライタ５に非接触送信される（ステップ５）。なお、緩み検知用配線１３が非導通状態となっている場合にＩＣチップ１１にて検出される抵抗値は、後述するようにほぼ無限大となる。そのため、ＩＣチップ１１において、緩み検知用配線１３が導通状態にあると判断するための抵抗値として、緩み検知用配線１３自体の抵抗値ではなく、一定の閾値以下のものを用いてもよい。 In the IC chip 11, if the detected resistance value is the resistance value of the looseness detection wiring 13 itself, it is determined that the looseness detection wiring 13 is in the conductive state. The determination result is converted into digital information by the IC chip 11 as a detection result of the conduction state of the looseness detection wiring 13, and is transmitted to the reader/writer 5 through the antenna 12 in a non-contact manner (step 5). The resistance value detected by the IC chip 11 when the looseness detection wiring 13 is in a non-conductive state is almost infinite as described later. Therefore, in the IC chip 11, the resistance value for determining that the looseness detection wiring 13 is in the conductive state may be not the resistance value of the looseness detection wiring 13 itself, but may be a certain threshold value or less.
　一方、緩み検知ラベル１がボルト２に貼着され、図４ａ及び図４ｂに示したようにボルト２に緩みが生じることにより図６に示したように緩み検知ラベル１が破断して緩み検知用配線１３が断線している場合は、緩み検知用配線１３が非導通状態となっている。その状態においては、リーダライタ５から供給された電力によって緩み検知用配線１３に電流が供給されても、緩み検知用配線１３が非導通状態となっていることから緩み検知用配線１３には電流が流れない。それにより、ＩＣチップ１１において検出される抵抗値は、ほぼ無限大となる。 On the other hand, the looseness detection label 1 is attached to the bolt 2, and the looseness detection label 1 is broken as shown in FIG. 6 due to the looseness of the bolt 2 as shown in FIGS. When the wiring 13 is broken, the looseness detection wiring 13 is in a non-conductive state. In this state, even if a current is supplied to the looseness detection wiring 13 by the power supplied from the reader/writer 5, the looseness detection wiring 13 is in a non-conducting state, so that the looseness detection wiring 13 has a current. Does not flow. As a result, the resistance value detected by the IC chip 11 becomes almost infinite.
　ＩＣチップ１１においては、検出された抵抗値がほぼ無限大である場合は、緩み検知用配線１３が非導通状態になっている判断される。その判断結果は、緩み検知用配線１３の導通状態の検出結果としてＩＣチップ１１にてデジタル情報に変換されてアンテナ１２を介してリーダライタ５に非接触送信される。なお、緩み検知用配線１３が非導通状態である場合にＩＣチップ１１にて検出される抵抗値はほぼ無限大となる。そのため、ＩＣチップ１１において、緩み検知用配線１３が非導通状態であると判断するための抵抗値としてほぼ無限大ではなく、緩み検知用配線１３自体の抵抗値よりも大きな一定の閾値以上のものを用いてもよい。 In the IC chip 11, when the detected resistance value is almost infinite, it is determined that the looseness detection wiring 13 is in the non-conduction state. The determination result is converted into digital information by the IC chip 11 as a detection result of the conduction state of the looseness detection wiring 13, and is transmitted to the reader/writer 5 through the antenna 12 in a contactless manner. The resistance value detected by the IC chip 11 is almost infinite when the looseness detection wiring 13 is non-conductive. Therefore, in the IC chip 11, the resistance value for determining that the looseness detection wiring 13 is in the non-conducting state is not substantially infinite, and is equal to or larger than a certain threshold value larger than the resistance value of the looseness detection wiring 13 itself. May be used.
　このように、リーダライタ５においては、緩み検知ラベル１にて検出された緩み検知用配線１３の導通状態を、アンテナ１２を介して非接触送信させることになる。 In this way, in the reader/writer 5, the conduction state of the looseness detection wiring 13 detected by the looseness detection label 1 is transmitted in a contactless manner via the antenna 12.
　上記のようにして緩み検知ラベル１からリーダライタ５に非接触送信された検出結果がリーダライタ５にて受信されると（ステップ６）、リーダライタ５にて受信された検出結果は管理用パソコン６に転送される（ステップ７）。 When the detection result transmitted from the looseness detection label 1 to the reader/writer 5 in a non-contact manner as described above is received by the reader/writer 5 (step 6), the detection result received by the reader/writer 5 is the management personal computer. 6 (step 7).
　リーダライタ５から転送されてきた検出結果が管理用パソコン６にて受信されると（ステップ８）、管理用パソコン６において、緩み検知ラベル１からリーダライタ５に非接触送信され、管理用パソコン６に転送されてきた検出結果に基づいて、ボルト２に緩みが生じているかが判断されることになる（ステップ９）。具体的には、リーダライタ５から管理用パソコン６に転送されてきた検出結果において、緩み検知用配線１３が導通状態である場合はボルト２に緩みが生じていないと判断され、緩み検知用配線１３が非導通状態である場合はボルト２に緩みが生じていると判断されることになる。 When the detection result transferred from the reader/writer 5 is received by the management personal computer 6 (step 8), the looseness detection label 1 in the management personal computer 6 is transmitted to the reader/writer 5 in a non-contact manner, and the management personal computer 6 On the basis of the detection result transferred to, it is judged whether or not the bolt 2 is loosened (step 9). Specifically, in the detection result transferred from the reader/writer 5 to the management personal computer 6, when the looseness detection wiring 13 is in the conductive state, it is determined that the bolt 2 is not loosened, and the looseness detection wiring is detected. When 13 is in a non-conducting state, it is determined that the bolt 2 is loose.
　このように、本形態においては、土台３に締め付けられたボルト２の緩みを検知するための緩み検知用配線１３の一部が、緩み検知ラベル１がボルト２と土台３とに跨って貼着された状態において、ボルト２に緩みが発生した場合に位置の変位が最も大きくなるヘッド部２ａの角部２ｃに沿う領域に形成されたものとなっている。そのため、土台３に締め付けられたボルト２に緩みが発生した場合に緩み検知用配線１３が断線しやすくなる。それにより、ボルト２の緩みが小さな場合であってもその緩みを検知することができる。 As described above, in the present embodiment, a part of the looseness detection wiring 13 for detecting the looseness of the bolt 2 fastened to the base 3 is attached to the looseness detection label 1 across the bolt 2 and the base 3. In this state, the bolt 2 is formed in a region along the corner 2c of the head portion 2a where the displacement of the position is maximized when the bolt 2 is loosened. Therefore, when the bolt 2 fastened to the base 3 is loosened, the looseness detection wiring 13 is easily broken. Thereby, even if the looseness of the bolt 2 is small, the looseness can be detected.
　このように構成された緩み検知ラベル１は、例えば、新幹線の台車等において、台車を固定するボルトの緩み検知に用いることができる。その場合、スペーサ３０が発泡性アクリル樹脂等のように柔らかい材料から構成されていれば、新幹線が走行中に緩み検知ラベル１が風で飛ばされたり振動で脱落したりした場合でも、緩み検知ラベル１が人体等に当たることによる被害を小さくすることができる。 The looseness detection label 1 configured in this way can be used, for example, in a bogie of the Shinkansen to detect looseness of a bolt that fixes the bogie. In that case, if the spacer 30 is made of a soft material such as foamable acrylic resin, even if the looseness detection label 1 is blown or dropped by vibration while the Shinkansen is running, the looseness detection label 1 It is possible to reduce the damage caused by 1 hitting the human body or the like.
　ここで、緩み検知ラベル１の貼着領域１０ａの正六角形の領域と長方形の領域との連接部分に正六角形の頂点が角部１５として存在していることによる効果について説明する。 Here, the effect of the presence of the regular hexagonal apex as the corner portion 15 at the connecting portion of the regular hexagonal region and the rectangular region of the sticking region 10a of the looseness detection label 1 will be described.
　図９ａ～図９ｃは、図１ａ～図１ｄに示した緩み検知ラベル１の貼着領域１０ａの正六角形の領域と長方形の領域との連接部分に正六角形の頂点が角部１５として存在していることによる効果を説明するための図である。 9a to 9c, a regular hexagonal apex is present as a corner portion 15 at the connecting portion between the regular hexagonal region and the rectangular region of the sticking region 10a of the looseness detection label 1 shown in FIGS. 1a to 1d. It is a figure for explaining the effect by having.
　土台３に締め付けられるボルト２の大きさは様々である。そのため、上述したように、貼着領域１０ａのうちボルト２のヘッド部２ａの側面に貼着される長方形の領域の端辺がボルト２の角部２ｃに沿うように緩み検知ラベル１をボルト２と土台３とに跨って貼着することは、図９ａに示すようにボルト２のヘッド部２ａの上面の正六角形の大きさが貼着領域１０ａの正六角形の大きさとほぼ等しい場合は容易である。しかしながら、ボルト２のヘッド部２ａの上面の正六角形の大きさが貼着領域１０ａの正六角形の大きさよりも大きな場合、困難となる場合がある。 -The size of the bolt 2 that can be fastened to the base 3 varies. Therefore, as described above, the looseness detection label 1 is attached to the bolt 2 such that the end side of the rectangular area of the attachment area 10a that is attached to the side surface of the head portion 2a of the bolt 2 is along the corner 2c of the bolt 2. It is easy to attach the base 2 and the base 3 when the size of the regular hexagon of the upper surface of the head portion 2a of the bolt 2 is substantially equal to the size of the regular hexagon of the attachment area 10a as shown in FIG. 9a. is there. However, when the size of the regular hexagon on the upper surface of the head portion 2a of the bolt 2 is larger than the size of the regular hexagon of the attachment area 10a, it may be difficult.
　本形態における緩み検知ラベル１においては、上述したように、貼着領域１０ａの正六角形の領域と長方形の領域との連接部分に正六角形の頂点が角部１５として存在している。 In the looseness detection label 1 in the present embodiment, as described above, the regular hexagonal apex is present as the corner portion 15 at the connecting portion between the regular hexagonal area and the rectangular area of the attachment area 10a.
　そのため、図９ｂ及び図９ｃに示すように、ボルト２のヘッド部２ａの上面の正六角形の大きさが貼着領域１０ａの正六角形の大きさよりも大きな場合であっても、ボルトのヘッド部２ａの角部２ｃの１つと貼着領域１０ａの正六角形の領域の角部１５の１つとがほぼ合わさるようにして、緩み検知ラベル１をボルト２と土台３とに跨って貼着すれば、貼着領域１０ａのうちボルト２のヘッド部２ａの側面に貼着される長方形の領域の端辺がボルト２の角部２ｃに沿うようにすることができる。 Therefore, as shown in FIGS. 9b and 9c, even if the size of the regular hexagon on the upper surface of the head portion 2a of the bolt 2 is larger than the size of the regular hexagon of the attachment area 10a, the head portion 2a of the bolt 2a. If the looseness detection label 1 is attached across the bolt 2 and the base 3 so that one of the corners 2c of the same and one of the corners 15 of the regular hexagonal area of the attachment area 10a are substantially aligned, Of the attachment area 10a, the end side of the rectangular area attached to the side surface of the head portion 2a of the bolt 2 can be along the corner portion 2c of the bolt 2.
　図１０ａは、図１ａ～図１ｄに示した緩み検知ラベル１が図２ａ及び図２ｂに示した被着体に貼着された状態の他の例を示す上面図である。図１０ｂは、図１０ａに示すＡ方向から見た側面図である。なお、説明がわかりにくくならないように緩み検知ラベル１の積層構造等の詳細な構成の図示は省略してある。 FIG. 10a is a top view showing another example of a state in which the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b. 10b is a side view seen from the direction A shown in FIG. 10a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
　図１ａ～図１ｄに示した緩み検知ラベル１を図２ａ及び図２ｂに示した被着体に貼着してボルト２の緩み検知に利用する場合は、図１０ａ及び図１０ｂに示すように、ボルト２のヘッド部２ａの１つの側面に貼着領域１０ｂが対向するとともに、土台３に貼着領域１０ａが対向するように、緩み検知ラベル１を粘着層５０によってボルト２と土台３とに跨って貼着してもよい。すなわち、本例においては、貼着領域１０ａが第１の領域となり、貼着領域１０ｂが第２の領域となって、緩み検知ラベル１がボルト２と土台３とに跨って貼着されることになる。この際、貼着領域１０ｂの端辺がボルト２のヘッド部２ａの角部２ｃに沿うように緩み検知ラベル１がボルト２と土台３とに跨って貼着されることで、緩み検知用配線１３のうち、貼着領域１０ｂの端辺に沿って形成された領域の一部が、ボルト２のヘッド部２ａの角部２ｃに沿う領域に形成されたものとなる。 When the looseness detection label 1 shown in FIGS. 1a to 1d is attached to the adherend shown in FIGS. 2a and 2b and used for looseness detection of the bolt 2, as shown in FIGS. 10a and 10b, The looseness detection label 1 is laid across the bolt 2 and the base 3 by the adhesive layer 50 so that the sticking region 10b faces one side surface of the head portion 2a of the bolt 2 and the sticking region 10a faces the base 3. You may attach it. That is, in this example, the sticking area 10a becomes the first area, the sticking area 10b becomes the second area, and the looseness detection label 1 is stuck across the bolt 2 and the base 3. become. At this time, the looseness detection label 1 is adhered across the bolt 2 and the base 3 so that the end side of the attachment area 10b is along the corner 2c of the head portion 2a of the bolt 2, whereby the looseness detection wiring is formed. A part of the area formed along the end side of the attachment area 10b of 13 is formed in the area along the corner 2c of the head portion 2a of the bolt 2.
　このようにしてボルト２と土台３とに跨って貼着された緩み検知ラベル１においては、緩み検知用配線１３が、ループ状に形成されていることで導通状態となっている。 In the looseness detection label 1 attached in this manner across the bolt 2 and the base 3, the looseness detection wiring 13 is formed in a loop shape to be in a conductive state.
　図１１ａは、図１ａ～図１ｄに示した緩み検知ラベル１が図１０ａ及び図１０ｂに示したようにボルト２と土台３とに跨って貼着された状態においてボルト２に緩みが生じた際の作用を説明するための上面図である。図１１ｂは、図１１ａに示すＡ方向から見た側面図である。なお、説明がわかりにくくならないように緩み検知ラベル１の積層構造等の詳細な構成の図示は省略してある。 FIG. 11a shows that when the looseness detection label 1 shown in FIGS. 1a to 1d is attached across the bolt 2 and the base 3 as shown in FIGS. 10a and 10b, the bolt 2 is loosened. FIG. 6 is a top view for explaining the action of the above. 11b is a side view seen from the direction A shown in FIG. 11a. It should be noted that the detailed structure such as the laminated structure of the looseness detection label 1 is not shown so as not to obscure the description.
　図１ａ～図１ｄに示した緩み検知ラベル１が図１０ａ及び図１０ｂに示すようにボルト２と土台３とに跨って貼着された状態において、外部から加わる振動等によってボルト２が図１１ａに示すように反時計回りに回転して土台３に対して緩みが生じると、図１１ｂに示すように、ボルト２に貼着された貼着領域１０ｂと土台３に貼着された貼着領域１０ａとの間に歪みが生じる。 When the looseness detection label 1 shown in FIGS. 1a to 1d is attached over the bolt 2 and the base 3 as shown in FIGS. 10a and 10b, the bolt 2 is moved to the state shown in FIG. As shown in FIG. 11B, when the base 3 is rotated counterclockwise and loosens, the sticking region 10b stuck to the bolt 2 and the sticking region 10a stuck to the base 3 are shown in FIG. 11b. Distortion occurs between and.
　ボルト２に貼着された貼着領域１０ｂと土台３に貼着された貼着領域１０ａとの間に歪みが生じると、上述したものと同様に、緩み検知ラベル１がその端辺から破断する。それに伴って緩み検知用配線１３が破断することで非導通状態となる。そして、緩み検知用配線１３が非導通状態になったことが検出されることにより、土台３に対するボルト２の緩みが生じたことが検知されることになる。 When distortion occurs between the sticking area 10b stuck to the bolt 2 and the sticking area 10a stuck to the base 3, the looseness detection label 1 is broken from its edge similarly to the above. .. Along with that, the looseness detection wiring 13 is broken, so that it becomes non-conductive. Then, by detecting that the looseness detection wiring 13 is in the non-conducting state, it is detected that the bolt 2 is loosened with respect to the base 3.
　この場合においても、土台３に締め付けられたボルト２の緩みを検知するための緩み検知用配線１３の一部が、緩み検知ラベル１がボルト２と土台３とに跨って貼着された状態において、ボルト２に緩みが発生した場合に位置の変位が最も大きくなるヘッド部２ａの角部２ｃに沿う領域に形成されたものとなっている。そのため、土台３に締め付けられたボルト２に緩みが発生した場合に緩み検知用配線１３が断線しやすくなる。それにより、ボルト２の緩みが小さな場合であってもその緩みを検知することができる。 Also in this case, a part of the looseness detection wiring 13 for detecting the looseness of the bolt 2 fastened to the base 3 is in a state in which the looseness detection label 1 is attached across the bolt 2 and the base 3. The bolt 2 is formed in a region along the corner 2c of the head portion 2a where the displacement of the position is maximized when the bolt 2 is loosened. Therefore, when the bolt 2 fastened to the base 3 is loosened, the looseness detection wiring 13 is easily broken. Thereby, even if the looseness of the bolt 2 is small, the looseness can be detected.
　（他の実施の形態）
　図１２ａは、本発明の緩み検知ラベルの他の実施の形態を表面方向から見た構成図である。図１２ｂは、図１２ａに示したＡ－Ａ’断面図である。図１２ｃは、図１２ａに示したＢ－Ｂ’断面図である。図１２ｄは、図１２ａに示したＣ－Ｃ’断面図である。 (Other embodiments)
FIG. 12a is a configuration diagram of another embodiment of the looseness detection label of the present invention viewed from the surface direction. FIG. 12b is a sectional view taken along line AA′ shown in FIG. 12a. FIG. 12c is a sectional view taken along line BB′ shown in FIG. 12a. 12d is a cross-sectional view taken along the line CC′ shown in FIG. 12a.
　本形態は図１２ａ～図１２ｄに示すように、図１ａ～図１ｄに示したものに対して、緩み検知用配線１１３が、貼着領域１１０ａの長方形の領域と貼着領域１１０ｂにおいて、貼着領域１１０ａと貼着領域１１０ｂとの連接方向に延びるフィルム基板１１０の２つの端辺のうち一方の端辺側に寄って形成されている点が異なる緩み検知ラベル１０１である。 In this embodiment, as shown in FIGS. 12a to 12d, the looseness detection wiring 113 is attached to the rectangular area of the attachment area 110a and the attachment area 110b as compared with the one shown in FIGS. 1a to 1d. The looseness detection label 101 is different in that it is formed near one of the two edges of the film substrate 110 extending in the connecting direction of the area 110a and the attachment area 110b.
　このように構成された緩み検知ラベル１０１においても、貼着領域１１０ａの長方形の領域や貼着領域１１０ｂの端辺のうち、緩み検知用配線１１３が沿う端辺がボルト２のヘッド部２ａの角部２ｃに沿うようにボルト２と土台３とに跨って貼着されることで、緩み検知用配線１１３の一部がヘッド部２ａの角部２ｃに沿う領域に形成されたものとなる。それにより、土台３に締め付けられたボルト２に緩みが発生した場合に緩み検知用配線１１３が断線しやすくなり、ボルト２の緩みが小さな場合であってもその緩みを検知することができる。 Also in the looseness detection label 101 configured in this way, among the rectangular areas of the attachment area 110a and the edges of the attachment area 110b, the edges along which the looseness detection wiring 113 extends are the corners of the head portion 2a of the bolt 2. By being attached to the bolt 2 and the base 3 so as to extend along the portion 2c, a part of the looseness detection wiring 113 is formed in a region along the corner 2c of the head portion 2a. Accordingly, when the bolt 2 fastened to the base 3 is loosened, the looseness detection wiring 113 is easily broken, and the looseness can be detected even when the bolt 2 is small in looseness.
　なお、上述した実施の形態においては、破断容易線として３本のミシン目１４，１１４が設けられたものを例に挙げて説明したが、ミシン目１４，１１４の数は３本に限らない。ただ、ミシン目１４，１１４が複数本設けられているものにおいては、ワッシャが挿入された場合に、ボルト２のヘッド部２ａとワッシャとの間と、ワッシャと土台３の座面との間にミシン目１４，１１４がそれぞれ対向するように緩み検知ラベル１，１０１を貼着することで、ボルト２のヘッド部２ａとワッシャとの間、または、ワッシャと土台３の座面との間のどちらかのみに緩みによる相対変位が生じた場合でも、その緩みを検知することができる。また、緩み検知ラベル１，１０１が貼着されるボルト２のサイズが複数ある場合、それぞれのサイズに応じて緩みによる相対変位が発生する位置にミシン目が対向するように緩み検知ラベル１，１０１を貼着することで、それぞれのサイズのボルト２による緩みを検知することができる。これにより、緩み検知ラベル１，１０１が貼着されるボルト２のサイズが複数ある場合でも、ミシン目１４，１１４の形成位置が互いに異なる複数種類の緩み検知ラベルを用いることなく、１種類の緩み検知ラベルで緩みを検知することができ、緩み検知ラベルのコストを低減できる。 In addition, in the above-described embodiment, the case where the three perforations 14, 114 are provided as the breakable lines has been described as an example, but the number of the perforations 14, 114 is not limited to three. However, in the case where a plurality of perforations 14 and 114 are provided, when the washer is inserted, between the head portion 2a of the bolt 2 and the washer, and between the washer and the seat surface of the base 3. By attaching the looseness detection labels 1 and 101 so that the perforations 14 and 114 are opposed to each other, either between the head portion 2a of the bolt 2 and the washer, or between the washer and the seat surface of the base 3. Even if a relative displacement occurs due to the looseness of the sole, the looseness can be detected. Further, when the bolts 2 to which the looseness detection labels 1 and 101 are attached have a plurality of sizes, the looseness detection labels 1 and 101 are arranged so that the perforations face each other at a position where relative displacement due to loosening occurs depending on each size. By sticking, it is possible to detect looseness due to the bolts 2 of each size. Thereby, even when there are a plurality of sizes of the bolt 2 to which the looseness detection labels 1 and 101 are attached, one type of looseness detection label is used without using a plurality of types of looseness detection labels in which the formation positions of the perforations 14 and 114 are different from each other. Looseness can be detected by the detection label, and the cost of the looseness detection label can be reduced.
　また、上述した実施の形態においては、破断容易線としてミシン目１４，１１４を例に挙げて説明したが、緩み検知用配線１３，１１３を避けるようにスリット加工や抜き加工を施すことで破断容易線を構成してもよい。 Further, in the above-described embodiment, the perforation lines 14 and 114 have been described as an example of the easy-to-break line, but it is easy to break by performing slit processing or punching processing so as to avoid the looseness detection wires 13 and 113. Lines may be constructed.
　また、上述した実施の形態においては、ＩＣチップ１１，１１１に２つのアンテナ１２，１１２が接続された構成を例に挙げて説明したが、ループ状の１つのアンテナがＩＣチップに接続された構成であってもよい。 Further, in the above-described embodiment, the configuration in which the two antennas 12 and 112 are connected to the IC chips 11 and 111 has been described as an example, but a configuration in which one loop-shaped antenna is connected to the IC chip is described. May be
　１，１０１　　緩み検知ラベル
　２　　ボルト
　２ａ　　ヘッド部
　２ｂ　　ねじ部
　２ｃ，１５，１１５　　角部
　３　　土台
　３ａ　　ねじ孔
　４　　導電性インク
　５　　リーダライタ
　６　　管理用パソコン
　１０，１１０フィルム基板
　１０ａ，１０ｂ，１１０ａ，１１０ｂ　　貼着領域
　１１，１１１　　ＩＣチップ
　１２，１１２　　アンテナ
　１３，１１３　　緩み検知用配線
　１４，１１４　　ミシン目
　２０，１２０　　保護フィルム
　３０，１３０　　スペーサ
　４０，５０，１４０，１５０　　粘着層 1,101 Looseness detection label 2 Bolt 2a Head part 2b Screw part 2c, 15,115 Corner part 3 Base 3a Screw hole 4 Conductive ink 5 Reader/writer 6 Management personal computer 10,110 Film substrate 10a, 10b, 110a, 110b Sticking Attachment area 11,111 IC chip 12,112 Antenna 13,113 Looseness detection wiring 14,114 Perforation 20,120 Protective film 30,130 Spacer 40,50,140,150 Adhesive layer

Claims (5)

  1. 　締め付け対象部品に締め付けられた、多角形のヘッド部を具備する締め付け部材の緩みを検知する緩み検知ラベルであって、
    　一方の面に接着層が積層され、前記接着層によって前記締め付け対象部品に貼着される第１の領域と、前記接着層によって前記締め付け部材に貼着される第２の領域とを具備するシート基材と、
    　前記シート基材の前記第１の領域と第２の領域とのいずれか一方に形成されたアンテナと、
    　前記シート基材の前記第１の領域と前記第２の領域とに跨って形成された緩み検知用配線と、
    　前記シート基材の前記第１の領域と前記第２の領域とのうち前記アンテナが形成された領域に前記アンテナ及び緩み検知用配線と接続されて配置され、前記緩み検知用配線の導通状態を検出し、その検出結果を前記アンテナを介して非接触送信するＩＣチップとを有する緩み検知ラベル。     A looseness detection label for detecting looseness of a fastening member having a polygonal head portion, which is fastened to a tightening target component,
    A sheet having an adhesive layer laminated on one surface, the first region being adhered to the tightening target component by the adhesive layer, and the second region being adhered to the tightening member by the adhesive layer. Base material,
    An antenna formed on one of the first region and the second region of the sheet base material;
    A looseness detection wiring formed over the first region and the second region of the sheet base material;
    The sheet and the second region are connected to the antenna and the looseness detection wiring in a region where the antenna is formed, and are placed in a conductive state of the looseness detection wiring. A looseness detection label having an IC chip for detecting and transmitting the detection result in a non-contact manner via the antenna.
  2. 　請求項１に記載の緩み検知ラベルにおいて、
    　前記緩み検知用配線は、その一部が、前記緩み検知ラベルが前記締め付け対象部品と前記締め付け部材とに跨って貼着された場合に前記多角形の角部に沿う領域に形成されている、緩み検知ラベル。     The looseness detection label according to claim 1,
    The looseness detection wiring is partially formed in a region along the corner of the polygon when the looseness detection label is attached across the tightening target component and the tightening member, Looseness detection label.
  3. 　請求項１または請求項２に記載の緩み検知ラベルにおいて、
    　前記シート基材は、前記第１の領域と前記第２の領域との間に破断容易線が設けられている、緩み検知ラベル。     In the looseness detection label according to claim 1 or 2,
    The looseness detection label of the sheet base material, wherein an easy-break line is provided between the first region and the second region.
  4. 　請求項３に記載の緩み検知ラベルにおいて、
    　前記緩み検知用配線は、前記破断容易線が設けられた領域においてはその少なくとも一部が前記シート基材の端辺に沿って形成されている、緩み検知ラベル。     The looseness detection label according to claim 3,
    The looseness detection wiring is a looseness detection label, wherein at least a part of the looseness detection wiring is formed along an edge of the sheet base material in a region where the easy-breakage line is provided.
  5. 　請求項１乃至４のいずれか１項に記載の緩み検知ラベルを用いた緩み検知方法であって、
    　前記ＩＣチップが、前記緩み検知用配線の導通状態を検出するステップと、
    　前記ＩＣチップに対して非接触通信が可能な読取手段が、前記ＩＣチップに、前記検出結果を前記アンテナを介して非接触送信させるステップと、
    　前記読取手段に接続された処理手段が、前記ＩＣチップから前記読取手段に非接触送信された検出結果に基づいて、前記締め付け対象部品に締め付けられた前記締め付け部材の緩みを検知するステップとを有する、緩み検知方法。     A looseness detection method using the looseness detection label according to any one of claims 1 to 4,
    The IC chip detecting a conduction state of the looseness detection wiring;
    A reading unit capable of non-contact communication with the IC chip, causing the IC chip to non-contactly transmit the detection result via the antenna;
    Processing means connected to the reading means detects looseness of the fastening member fastened to the fastening target component based on a detection result transmitted from the IC chip to the reading means in a non-contact manner. , Looseness detection method.
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JP7517167B2 (en) 2021-01-21 2024-07-17 Ｔｏｐｐａｎホールディングス株式会社 Moisture detection tag and moisture detection method using same

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JP2018529119A (en) * 2015-09-08 2018-10-04 凸版印刷株式会社 IC tag-attached seal and its mounting method

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JP2018529119A (en) * 2015-09-08 2018-10-04 凸版印刷株式会社 IC tag-attached seal and its mounting method

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