Door open detection sensor and door open detection system

Abstract

This invention provides a door open detection sensor that can improve the accuracy of detecting the history of door opening. [Solution] The door opening detection sensor comprises a base material attached across the object to be operated and the door, a wireless communication antenna provided on the base material, an IC chip electrically connected to the antenna, and detection wiring connected to the IC chip. The base material has a first adhesive portion and a second adhesive portion attached to the door and the object to be operated by an adhesive layer, respectively. A first separation line and a second separation line are formed between the first adhesive portion and the second adhesive portion of the base material. The first separation line extends from the first edge of the base material toward the second edge opposite the first edge. The second separation line extends from the second edge of the base material toward the first edge. At least a portion of the detection wiring is formed between the first separation line and the second separation line.

Description

Technical Field

[0001] The present invention relates to a door opening detection sensor and a door opening detection system.

Background Art

[0002] A system for detecting the open / closed state of a door using an RFID tag has been proposed (see, for example, Patent Document 1). As a technique for detecting the operation of an object, there is a detection label described in Patent Document 2. In this detection label, the operation of the object can be detected by breaking a break layer and disconnecting a wiring portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above detection label, the label may be difficult to break. In this case, the disconnection of the wiring portion becomes insufficient, and the detection accuracy of the operation of the object may be lowered.

[0005] One aspect of the present invention is to provide a door opening detection sensor and a door opening detection system that can improve the detection accuracy of the door opening history.

Means for Solving the Problems

[0006] An open door detection sensor according to one aspect of the present invention is an open door detection sensor for detecting the opening of a door that can be opened and closed relative to an object to be operated on, comprising: a base material attached across the object to be operated on and the door; a wireless communication antenna provided on the base material; an IC chip electrically connected to the antenna; and detection wiring connected to the IC chip, wherein the base material has a first adhesive portion and a second adhesive portion attached to the door and the object to be operated on, respectively by an adhesive layer, a first separation line and a second separation line are formed between the first adhesive portion and the second adhesive portion of the base material, the first separation line extends from a first edge of the base material toward a second edge opposite the first edge, the second separation line extends from a second edge of the base material toward a first edge, and at least a portion of the detection wiring is formed between the first separation line and the second separation line.

[0007] The door opening detection sensor may have a configuration in which at least one of the first separation line and the second separation line has a main line portion formed in a straight line shape and an inclined portion that is inclined with respect to the main line portion.

[0008] The door opening detection sensor may have a configuration in which at least one of the first separation line and the second separation line has a main line portion formed in a curved shape and an inclined portion that is inclined with respect to the main line portion.

[0009] The door opening detection sensor may have a configuration in which the first separation line and the second separation line are formed in a straight line and have parallel sections formed at intervals.

[0010] The door opening detection sensor may be configured such that the first separation line and the second separation line are formed in a straight line and their ends face each other.

[0011] The first separation line has a first main line portion and a first inclined portion extending inclined with respect to the first main line portion from the tip of the first main line portion, and the second separation line has a second main line portion and a second inclined portion extending inclined with respect to the second main line portion from the tip of the second main line portion, and at least a part of the second inclined portion may be formed parallel to the first inclined portion.

[0012] An open door detection system according to one aspect of the present invention comprises an open door detection sensor and an external device that receives the detection result from the open door detection sensor via wireless communication. [Effects of the Invention]

[0013] According to one aspect of the present invention, it is possible to provide a door open detection sensor and a door open detection system that can improve the accuracy of detecting the history of door opening. [Brief explanation of the drawing]

[0014] [Figure 1] This is a plan view of a door open detection system having a door open detection sensor according to the first embodiment. [Figure 2] This is a cross-sectional view of the door open detection sensor according to the first embodiment. [Figure 3] This is a schematic diagram showing the installation state of the door open detection sensor according to the first embodiment. [Figure 4] This is a schematic diagram illustrating the operation of the door open detection sensor according to the first embodiment. [Figure 5] This is a schematic diagram illustrating the operation of the door open detection sensor according to the first embodiment. [Figure 6] This is a schematic diagram illustrating the operation of the door open detection sensor according to the first embodiment. [Figure 7] This is a process diagram showing a method for manufacturing the door open detection sensor according to the first embodiment. [Figure 8] This is a process diagram showing a method for manufacturing the door open detection sensor according to the first embodiment. [Figure 9] This is a process diagram showing a method for manufacturing the door open detection sensor according to the first embodiment. [Figure 10]It is a process diagram showing a method for manufacturing a door opening detection sensor according to the first embodiment. [Figure 11] It is a process diagram showing a method for manufacturing a door opening detection sensor according to the first embodiment. [Figure 12] It is a process diagram showing a method for manufacturing a door opening detection sensor according to the first embodiment. [Figure 13] It is a process diagram showing a method for manufacturing a door opening detection sensor according to the first embodiment. [Figure 14] It is a process diagram showing a method for manufacturing a door opening detection sensor according to the first embodiment. [Figure 15] It is a plan view of a door opening detection sensor according to the second embodiment. [Figure 16] It is a plan view of a door opening detection sensor according to the third embodiment. [Figure 17] It is a plan view of a door opening detection sensor according to the fourth embodiment. [Figure 18] It is a plan view of a door opening detection sensor according to the fifth embodiment. [Figure 19] It is a plan view of a door opening detection sensor according to the sixth embodiment. [Figure 20] It is a plan view of a door opening detection sensor according to the seventh embodiment. [Figure 21] It is a plan view of a door opening detection sensor according to the eighth embodiment. [Figure 22] It is a plan view of a door opening detection sensor according to the ninth embodiment. [Figure 23] It is a plan view of the first modification of the door opening detection sensor according to the ninth embodiment. [Figure 24] It is a plan view of the second modification of the door opening detection sensor according to the ninth embodiment. [Figure 25] It is a plan view of the third modification of the door opening detection sensor according to the ninth embodiment.

Modes for Carrying Out the Invention

[0015] Hereinafter, the door opening detection sensor and the door opening detection system according to the embodiment will be specifically described with reference to the drawings.

[0016] [Door open detection sensor and door open detection system] (First embodiment) Figure 1 is a plan view of a door open detection system 1000 having a door open detection sensor 100 according to the first embodiment. Figure 2 is a cross-sectional view of the door open detection sensor 100. Figure 2 shows cross-section II of Figure 1. Figure 3 is a schematic diagram showing the installation state of the door open detection sensor 100. Figures 4 to 6 are schematic diagrams showing the operation of the door open detection sensor 100.

[0017] As shown in Figure 1, the door open detection system 1000 comprises a door open detection sensor 100 and an external device 1001. The door open detection sensor 100 comprises a base material 1, an antenna 2, an IC chip 3, detection wiring 4, an adhesive layer 5 (see Figure 2), and a surface material 6. The door open detection sensor 100 is an RFID (Radio Frequency Identification) tag.

[0018] As shown in Figure 3, the door 101 (first door) is formed in a plate shape. The door 101 is designed to be openable and closable relative to the actuated body 102. The door 101 is rotatable about a pivot axis provided, for example, at a second side end (the side end opposite to the first side end 101a). When the door 101 is closed relative to the actuated body 102, the end face 101b of the first side end 101a of the door 101 faces the end face 102b of the first side end 102a of the actuated body 102. The first main surface 101c (main surface) is one side of the door 101 (the side on the +Z side). The material of the door 101 may be a non-metallic material (wood, resin, etc.) or metal.

[0019] The actuated body 102 is formed, for example, in the shape of a plate. The actuated body 102 may be a door (second door) that can be opened and closed relative to the door 101. If the actuated body 102 is a door, it is rotatable about a pivot axis provided, for example, at a second side end (the side end opposite to the first side end 102a). The actuated body 102 may be a door frame surrounding the door 101. The actuated body 102 may be a wall constituting a building. The first main surface 102c is one surface of the actuated body 102 (the surface on the +Z side). When the door 101 is closed relative to the actuated body 102, the first main surface 102c of the actuated body 102 is flush with, for example, the first main surface 101c of the door 101. The constituent material of the actuated body 102 may be a non-metallic material (wood, resin, etc.) or metal.

[0020] The "main surface" is the widest surface of the plate-like object, specifically the front and back surfaces. The end surface is the surface formed at the edge of the plate-like object, and is usually perpendicular to the main surface.

[0021] Door 101 is opened by rotating it relative to the actuated body 102. Door 101 is opened by rotating either door 101 or the actuated body 102, or both. To open door 101, for example, only door 101 may be rotated, only the actuated body 102 may be rotated, or both door 101 and the actuated body 102 may be rotated.

[0022] In Figure 3, the door 101 is in a closed position relative to the actuated body 102. In Figure 3, the direction in which the closed door 101 and the actuated body 102 are aligned (left-right direction in Figure 3) is the X direction. One direction in the X direction (right side in Figure 3) is the +X side. The opposite direction to the +X side is the -X side. The extension direction of the first side ends 101a and 102a of the door 101 and the actuated body 102 (up-down direction in Figure 3) is the Y direction. The Y direction is perpendicular to the X direction. One direction in the Y direction (upper side in Figure 3) is the +Y side. The opposite direction to the +Y side is the -Y side.

[0023] The Z direction is perpendicular to the X and Y directions. The Z direction is the thickness direction of the closed door 101 and the actuated object 102. One direction in the Z direction is the +Z side. The direction opposite to the +Z side is the -Z side. Viewing from the Z direction is called a plan view. The up and down directions are tentatively defined according to Figure 3. The upper side (+Y side) in Figure 3 is the upper side. The lower side (-Y side) in Figure 3 is the lower side. The up and down directions defined here do not limit the orientation when the door open detection sensor is in use.

[0024] As shown in Figure 1, the base material 1 is a rectangular sheet in plan view. The base material 1 is flexible. The base material 1 is, for example, rectangular in shape with a long side parallel to the Y direction. The base material 1 has two edges 1a, 1b parallel to the X direction and two side edges 1c, 1d parallel to the Y direction.

[0025] The two edges 1a and 1b are the first edge 1a and the second edge 1b, respectively. The first edge 1a is the edge on the +Y side. The second edge 1b is the edge on the -Y side. The second edge 1b is the edge opposite to the first edge 1a. The two side edges 1c and 1d are the first side edge 1c and the second side edge 1d, respectively. The first side edge 1c is the side edge on the +X side. The second side edge 1d is the side edge on the -X side. The second side edge 1d is the side edge opposite to the first side edge 1c.

[0026] As shown in Figure 2, the first main surface 1e is the +Z side of the base material 1. The second main surface 1f is the -Z side of the base material 1.

[0027] The base material 1 comprises an inner base material 1A and an outer base material 1B. The inner base material 1A is a rectangular sheet in plan view. The inner base material 1A functions, for example, as a spacer to adjust the thickness of the base material 1. The outer base material 1B is formed in sheet form. The main area of ​​the outer base material 1B overlaps with the entire area of ​​the +Z side surface of the inner base material 1A. The outer base material 1B is folded over at two edges of the inner base material 1A. The end areas of the outer base material 1B overlap with the -Z side surface of the inner base material 1A. The outer base material 1B is fixed to the inner base material 1A, for example.

[0028] As shown in Figure 1, the base material 1 has a first base material portion 11 and a second base material portion 12. The first base material portion 11 is a part of the base material 1. The first base material portion 11 is a rectangular portion including a first side edge 1c. The first main surface 11a is the +Z side surface of the first base material portion 11. The second main surface 11b is the -Z side surface of the first base material portion 11 (see Figure 2).

[0029] The second base material portion 12 is another part of the base material 1. The second base material portion 12 is a rectangular portion including the second side edge 1d. The first main surface 12a is the +Z side surface of the second base material portion 12. The second main surface is the -Z side surface of the second base material portion 12. The first base material portion 11 and the second base material portion 12 are separated, for example, by the main line portion 21A of the first separation line 21 and the second separation line 22.

[0030] At least a portion of the first base material portion 11 is attached to the first main surface 101c of the door 101 by the adhesive layer 5 (see Figure 2). The first adhesive portion 13 is the area of ​​the first base material portion 11 that is attached to the door 101 by the adhesive layer 5 (see Figure 3). The first adhesive portion 13 may be a part of the first base material portion 11 or the entire area.

[0031] At least a portion of the second base material portion 12 is attached to the first main surface 102c of the worked object 102 by the adhesive layer 5 (see Figure 2). The second adhesive portion 14 is the region of the second base material portion 12 that is attached to the worked object 102 by the adhesive layer 5 (see Figure 3). The second adhesive portion 14 may be a part of the second base material portion 12 or the entire region.

[0032] The base material 1 is attached across the door 101 and the actuated body 102. That is, the base material 1 is provided from one of the door 101 and the actuated body 102 to the other.

[0033] The base material 1 is, for example, a resin base material, a paper base material, etc. Base material 1 is insulating (non-conductive). Examples of resin base material materials include polyester resins such as polyethylene terephthalate (PET), polyolefin resins, etc. The resin constituting the resin base material may also be a foamed resin.

[0034] The inner base material 1A is formed of, for example, foamed resin. When the inner base material 1A is made of foamed resin, the base material 1 is made easier to break, thereby increasing the detection sensitivity of the door opening detection sensor 100. The outer base material 1B is formed of, for example, polyester resin, polyolefin resin, etc.

[0035] Antenna 2 is capable of wireless communication (contactless communication) with the outside. Antenna 2 is an antenna for wireless communication. Antenna 2 is formed in layers. Antenna 2 has a main region 2A and two end regions 2B (see Figure 2) extending from both ends of the main region 2A. The main region 2A is formed on the first main surface 1e of the base material 1 (more specifically, the first main surface 11a of the first base material portion 11). The main region 2A is formed in a strip shape along the Y direction from the first end edge 1a to the second end edge 1b.

[0036] As shown in Figure 2, the antenna 2 is folded back at its edges 1a and 1b. The end regions 2B are formed on the second main surface 1f of the base material 1 (more specifically, the second main surface 11b of the first base material portion 11). The two end regions 2B extend from the edges 1a and 1b in directions toward each other. In a plan view, the end regions 2B overlap with the main region 2A.

[0037] It is preferable that at least a portion of the end region 2B overlaps with the main region 2A in a plan view. When the end region 2B is located in a position that overlaps with the main region 2A, it becomes less susceptible to electromagnetic influence from the door 101 and the actuated body 102, especially if the door 101 and the actuated body 102 are made of metal.

[0038] Antenna 2 is formed from, for example, a thin metal film formed by metal foil, plating, etc.; a thin metal film formed by metal vapor deposition, etc.; a metal plate, etc. Antenna 2 may also be formed from, for example, a conductive ink such as a polymer-type conductive ink or a silver ink composition.

[0039] As shown in Figure 1, the IC chip 3 is not particularly limited. The IC chip 3 only needs to be capable of writing and reading information contactlessly via the antenna 2. Examples of IC chips 3 include contactless IC tags, contactless IC labels, and contactless IC cards. The IC chip 3 is mounted on the first substrate 11. The IC chip 3 is electrically connected to the antenna 2. The IC chip 3 can transmit detection results wirelessly to an external device 1001 (e.g., a reader / writer) via the antenna 2.

[0040] The adhesive layer 5 is formed over the entire area of ​​the second main surface 1f of the base material 1. The adhesive layer 5 is formed of, for example, a known adhesive. Because the door open detection sensor 100 has the adhesive layer 5, it can be attached to the surface of the object to be operated 102 and the door 101.

[0041] The surface layer material 6 (cover member) is formed on the first main surface 1e of the base material 1. The surface layer material 6 is the same shape as the base material 1. The surface layer material 6 covers the base material 1, antenna 2, IC chip 3, and detection wiring 4. The surface layer material 6 is made of, for example, resin, paper, etc. The surface layer material 6 is flexible.

[0042] The base material 1 and the surface material 6 can be collectively referred to as the laminate 10. The laminate 10 has a rectangular shape in plan view. The laminate 10 is flexible.

[0043] The laminate 10 has two edges 10a and 10b parallel to the X direction. Of the two edges 10a and 10b, the first edge 10a is the +Y side edge of the laminate 10. The first edge 10a overlaps with the first edge 1a of the base material 1. Of the two edges 10a and 10b, the second edge 10b is the -Y side edge of the laminate 10. The second edge 10b is the edge opposite to the first edge 10a. The second edge 10b overlaps with the second edge 1b of the base material 1.

[0044] The laminate 10 has a first separation line 21 and a second separation line 22 formed thereon. The first separation line 21 and the second separation line 22 are, for example, notches (slits) formed in the laminate 10. The first separation line 21 and the second separation line 22 are weakening lines that lower the breaking strength of the laminate 10. The first separation line 21 and the second separation line 22 can be collectively referred to as separation lines 21 and 22.

[0045] The first separation line 21 extends from the first edge 10a of the laminate 10 toward the second edge 10b. The first separation line 21 extends in a direction approaching the second edge 10b, starting from the first edge 10a. The first separation line 21 has a main line portion 21A and two branch portions 21B and 21C. The main line portion 21A is formed in a straight line extending toward the -Y side, starting from the first edge 10a.

[0046] The branch sections 21B and 21C are formed by branching off from the tip (-Y side end) of the main line section 21A. Of the two branch sections 21B and 21C, the first branch section 21B extends inclined downwards from the tip of the main line section 21A, transitioning towards the +X side. In Figure 1, the first branch section 21B is formed in a straight line extending diagonally downwards to the right. The first branch section 21B is inclined relative to the main line section 21A.

[0047] Of the two branching sections 21B and 21C, the second branching section 21C extends inclined from the tip of the main line section 21A, sloping downwards and transitioning towards the -X side. The second branching section 21C is formed in a straight line extending diagonally downward to the left in Figure 1. The second branching section 21C is inclined with respect to the main line section 21A.

[0048] The branch sections 21B and 21C extend away from each other, starting from the tip of the main line section 21A. The first branch line 21 has a main line section 21A and branch sections 21B and 21C, and is therefore Y-shaped overall. The lengths of the branch sections 21B and 21C are the same. The inclination angles (angles of inclination with respect to the Y direction) of the branch sections 21B and 21C are equal. For example, the inclination angles of the branch sections 21B and 21C are greater than 0° and less than 90°. The region between the first branch section 21B and the second branch section 21C (a triangular region) is called the intermediate region 23.

[0049] Branch sections 21B and 21C are examples of "inclined sections." An "inclined section" is a part whose formation direction differs from that of the main line section. The inclination angle of the inclined section relative to the main line section is greater than 0° and less than 180°. The inclined section may also be perpendicular to the main line section.

[0050] The second separation line 22 extends from the second edge 10b of the laminate 10 toward the first edge 10a. The second separation line 22 extends in a direction toward the first edge 10a, starting from the second edge 10b. The second separation line 22 is formed in a straight line extending toward the +Y side, starting from the second edge 10b.

[0051] The formation position of the second separation line 22 is, for example, within the formation range of the first separation line 21 when viewed from the Y direction. In this embodiment, the second separation line 22 is formed at a position that coincides with the main line portion 21A of the first separation line 21 when viewed from the Y direction. That is, the second separation line 22 is formed on the extension of the main line portion 21A. The formation position of the second separation line 22 is not limited to this example, and may be at any position within the range that overlaps with the branch portions 21B and 21C when viewed from the Y direction.

[0052] In this embodiment, the tip of the second separator line 22 (the +Y side end) is located away from the tip of the main line portion 21A of the first separator line 21 (the -Y side end) on the -Y side. The tip of the second separator line 22 faces the tip of the main line portion 21A in the Y direction. Because the second separator line 22 is separated from the first separator line 21, the first separator line 21 and the second separator line 22 are formed discontinuously.

[0053] The tip of the second separation line 22 (the +Y side end) may reach the triangular region (intermediate region 23) between the first branch section 21B and the second branch section 21C. The tip of the second separation line 22 (the +Y side end) may be located at the same position as the tips of the branch sections 21B and 21C (the -Y side end) when viewed from the X direction, or on the +Y side of the tips of the branch sections 21B and 21C. The tip of the second separation line 22 may be located on the -Y side of the tips of the branch sections 21B and 21C when viewed from the X direction.

[0054] Separation lines 21 and 22 are formed in a plan view between the first adhesive portion 13 and the second adhesive portion 14 of the laminate 10 (see Figure 3).

[0055] The detection wiring 4 includes a first wiring 31, a second wiring 32, and a connecting wiring 33. The detection wiring 4 is formed on the first main surface 1e (see Figure 2) of the base material 1. The base ends of the first wiring 31 and the second wiring 32 are electrically connected to the IC chip 3.

[0056] The first wiring 31 has a first portion 31A, a second portion 31B, and a third portion 31C. The first portion 31A extends from the IC chip 3 towards the -X side. The second portion 31B extends upward from the tip of the first portion 31A towards the -X side. The second portion 31B is inclined to rise towards the -X side. The third portion 31C extends downward from the tip of the second portion 31B towards the -X side. The third portion 31C is inclined to descend towards the -X side.

[0057] The second wiring 32 has a first portion 32A, a second portion 32B, and a third portion 32C. The first portion 32A extends from the IC chip 3 towards the -X side. The second portion 32B extends upward from the tip of the first portion 32A towards the -X side. The second portion 32B is inclined to rise towards the -X side. The third portion 32C extends downward from the tip of the second portion 32B towards the -X side. The third portion 32C is inclined to descend towards the -X side.

[0058] The second wiring 32 is formed at a distance from the first wiring 31. The first portion 32A is located away from the first portion 31A of the first wiring 31 on the +Y side. The first portion 32A is parallel to the first portion 31A. The second portion 32B is located away from the second portion 31B of the first wiring 31 on the +Y side. The second portion 32B is parallel to the second portion 31B. The third portion 32C is located away from the third portion 31C of the first wiring 31 on the +Y side. The third portion 32C is parallel to the third portion 31C. The first wiring 31 and the second wiring 32 are referred to as "wirings 31, 32".

[0059] The connecting wire 33 connects the -X end of the first wire 31 (the tip of the third section 31C) to the -X end of the second wire 32 (the tip of the third section 32C). The connecting wire 33 extends in a direction that intersects the third sections 31C and 32C (for example, in a direction perpendicular to the third sections 31C and 32C). Because the connecting wire 33 connects the first wire 31 and the second wire 32, the detection wire 4 is formed in a loop shape.

[0060] Viewed from the Y direction, the base ends (+X side ends) of the first portions 31A and 32A of wiring 31 and 32 are located on the +X side of the main line 21A and the second separation line 22. Viewed from the Y direction, the tips (-X side ends) of the third portions 31C and 32C of wiring 31 and 32, and the connecting wiring 33, are located on the -X side of the main line 21A and the second separation line 22.

[0061] The second sections 31B and 32B are formed parallel to the first branch section 21B. The third sections 31C and 32C are formed parallel to the second branch section 21C. The tips of the second sections 31B and 32B (i.e., the base ends of the third sections 31C and 32C) are located between the tip of the main line section 21A (the -Y side end) and the tip of the second separation line 22 (the +Y side end). Therefore, the portion including the tips of the second sections 31B and 32B, and the portion including the base ends of the third sections 31C and 32C, are formed between the first separation line 21 and the second separation line 22. The detection wiring 4 only needs to be formed in part between the first separation line 21 and the second separation line 22.

[0062] The detection wiring 4 can be formed from a conductive ink, such as a polymer-type conductive ink or a silver ink composition. The detection wiring 4 may also be formed from a metal thin film formed by, for example, metal foil or plating; or a metal thin film formed by metal vapor deposition. An unbroken detection wiring 4 is in a state of sufficient conductivity (high conductivity).

[0063] [Operation of the door open detection sensor] The operation of the door opening detection sensor 100 will be explained with reference to Figures 3 to 6. As shown in Figure 3, the door open detection sensor 100 is installed across the actuated body 102 and the door 101. Specifically, a part of the first base material 11 (first adhesive part 13) is attached to the first main surface 101c of the door 101 by the adhesive layer 5. A part of the second base material 12 (second adhesive part 14) is attached to the first main surface 102c of the actuated body 102 by the adhesive layer 5. The laminate 10, including the base material 1, is attached across the actuated body 102 and the door 101. That is, the laminate 10 is provided from one of the actuated body 102 and the door 101 to the other. When the door open detection sensor 100 is installed as shown in Figure 3, the laminate 10 has a planar shape along the X and Y directions.

[0064] As shown in Figure 4, the door 101 is rotated to the +Z side relative to the actuated body 102. Due to the rotation of the door 101 (opening operation of the door 101), the first adhesive portion 13 moves away from the second adhesive portion 14. "The first adhesive portion 13 and the second adhesive portion 14 move away from each other" means that, from a state in which the first adhesive portion 13 and the second adhesive portion 14 are attached to the door 101 and actuated body 102 respectively, at least one of the first adhesive portion 13 and the second adhesive portion 14 moves away from the other.

[0065] As the first adhesive portion 13 moves to the +Z side, a force is applied to the laminate 10 in a direction approximately perpendicular to its orientation at the time of installation (orientation along the XY plane). Since the branching portions 21B and 21C are inclined with respect to the Y direction, forces act from multiple directions on the triangular intermediate region 23 between the first branching portion 21B and the second branching portion 21C. As a result, the intermediate region 23 takes on a three-dimensional bent shape (curved convex shape).

[0066] As shown in Figures 5 and 6, when the door 101 is further rotated to the +Z side, the first adhesive portion 13 separates from the second adhesive portion 14, and a tensile force is applied to the intermediate region 23. Because the intermediate region 23 has a three-dimensional curved shape, the tensile force may act concentrated locally on the intermediate region 23. The intermediate region 23 fractures starting from the point where the tensile force is strongly applied (for example, the tip of the second separation line 22). As the tensile force increases, the fracture of the intermediate region 23 progresses, and the laminate 10 splits into the door 101 side and the actuated body 102 side.

[0067] As mentioned above, since at least a portion of the detection wiring 4 is formed between the first separation line 21 and the second separation line 22, a break in the intermediate region 23 causes the wirings 31 and 32 to break and enter a low conductivity state (for example, a non-conductive state). A "low conductivity state" is a state in which the conductivity is lower than under normal conditions (see Figure 3) (i.e., a state in which the electrical resistance is higher).

[0068] Because the laminate 10 is flexible, the fractured portion (for example, the intermediate region 23 that has split into two) is prone to becoming bent. Therefore, even when the door 101 is closed, the fractured portion is unlikely to return to the same shape as the installed state (see Figure 3) (a planar shape along the X and Y directions). Consequently, reconnection of the wiring 31 and 32 is unlikely (i.e., it is unlikely to return to a high conductivity state). Thus, the laminate 10 has a structure (reconnection-restricting structure) that makes reconnection unlikely after the wiring 31 and 32 have entered a low conductivity state. Therefore, it can be said that the wiring 31 and 32 enter a low conductivity state irreversibly.

[0069] When wirings 31 and 32 are in a low conductivity state, the electrical resistance of detection wiring 4 increases. This affects wireless communication by antenna 2. The door open detection sensor 100 can detect the opening history of door 101 as a result. The door open detection sensor 100 can transmit the detection result to an external device 1001 (e.g., a reader / writer) (see Figure 1) via wireless communication through antenna 2. For example, the door open detection sensor 100 can transmit flag information based on the comparison result between the electrical resistance of detection wiring 4 and a threshold (e.g., the difference between the electrical resistance of detection wiring 4 and the threshold). The external device 1001 receives the detection result.

[0070] [Manufacturing method for door open detection sensor] An example of a manufacturing method for the door open detection sensor 100 will be explained with reference to Figures 7 to 14. As shown in Figure 7, an outer substrate 1B is prepared. As shown in Figure 8, an antenna 2 is formed on one side (outer surface) of the outer substrate 1B. As shown in Figure 9, an IC chip 3 and detection wiring 4 are formed on the outer surface of the outer substrate 1B.

[0071] As shown in Figures 10 and 11, the main region of the outer substrate 1B is superimposed on the surface (front side) of the inner substrate 1A. The outer substrate 1B and antenna 2 are folded back at the two edges of the inner substrate 1A. The folded regions (end regions) are superimposed on the back side of the inner substrate 1A.

[0072] As shown in Figures 12 and 13, a surface layer material 6 is formed on the surface (front side) of the base material 1 and the antenna 2. An adhesive layer 5 is formed on the back side of the base material 1. This gives rise to a laminate 10.

[0073] As shown in Figure 14, a cutting tool is used to form a first separation line 21 and a second separation line 22 on the laminate 10. In this way, the door open detection sensor 100 shown in Figure 1 is obtained.

[0074] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 100 of this embodiment, at least a portion of the detection wiring 4 is formed between the first separation line 21 and the second separation line 22. Therefore, when the intermediate region 23 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the wiring 31 and 32 are disconnected and enter a low conductivity state (for example, a non-conductive state), which affects wireless communication by the antenna 2. Thus, the opening history of the door 101 can be detected with high accuracy.

[0075] The first separation line 21 has a main line section 21A and branch sections 21B and 21C that are inclined relative to the main line section 21A. As a result, an intermediate region 23 is formed between the branch sections 21B and 21C and the second separation line 22, which tends to become a three-dimensional bend when the door 101 is opened. Therefore, it is possible to encourage the breaking of the intermediate region 23 and make it easier to disconnect the wiring 31 and 32. Thus, the opening history of the door 101 can be detected with high accuracy.

[0076] The door open detection system 1000 according to this embodiment includes a door open detection sensor 100, and therefore achieves the same effects as the door open detection sensor 100.

[0077] [Door open detection sensor] (Second embodiment) Figure 15 is a plan view of the door open detection sensor 200 according to the second embodiment. Components common to other embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0078] As shown in Figure 15, the door open detection sensor 200 comprises a base material 1, an antenna 2, an IC chip 3, detection wiring 204, an adhesive layer 5 (see Figure 2), and a surface material 6. The door open detection sensor 200 differs from the door open detection sensor 100 (see Figure 1) in that it has separation lines 221 and 222 instead of separation lines 21 and 22, and has detection wiring 204 instead of detection wiring 4.

[0079] The first separation line 221 extends from the first edge 10a to the second edge 10b of the laminate 10. The first separation line 221 has a main line portion 221A and an inclined portion 221B. The main line portion 221A is formed in a straight line extending to the -Y side starting from the first edge 10a.

[0080] The inclined portion 221B extends inclined from the tip (-Y side end) of the main line portion 221A, transitioning to both the -Y and -X sides. In Figure 1, the inclined portion 221B is formed in a straight line extending diagonally downward to the left. The inclined portion 221B is inclined relative to the main line portion 221A.

[0081] The second separation line 222 extends from the second edge 10b of the laminate 10 toward the first edge 10a. The second separation line 222 has a main line portion 222A and an inclined portion 222B. The main line portion 222A is formed in a straight line extending to the +Y side starting from the second edge 10b.

[0082] The inclined portion 222B extends inclined from the tip (+Y side end) of the main line portion 222A, transitioning to both the +Y and +X sides. In Figure 1, the inclined portion 222B is formed in a straight line extending diagonally upward to the right. The inclined portion 222B is inclined relative to the main line portion 221A.

[0083] The inclined section 222B is formed parallel to the inclined section 221B of the first separation line 221, with a gap between them. The area between the main line section 222A and the inclined section 222B is a rectangular intermediate region 223.

[0084] In this embodiment, the main line portion 222A of the second separation line 222 is formed at a position that coincides with the main line portion 221A of the first separation line 221 when viewed from the Y direction. That is, the main line portion 222A is formed on the extension of the main line portion 221A.

[0085] The tip of the main line portion 222A (the +Y side end) is located away from the tip of the main line portion 221A of the first separation line 221 (the -Y side end) on the -Y side. Since the second separation line 222 is separated from the first separation line 221, the first separation line 221 and the second separation line 22 are formed discontinuously. In a plan view, the separation lines 221 and 222 are formed between the first adhesive portion 13 and the second adhesive portion 14 in the laminate 10 (see Figure 3).

[0086] The detection wiring 204 includes a first wiring 231, a second wiring 232, and a connecting wiring 233. The base ends of the first wiring 231 and the second wiring 232 are electrically connected to the IC chip 3.

[0087] The first wiring 231 has a first portion 231A and a second portion 231B. The first portion 231A extends from the IC chip 3 to the -X side. The second portion 231B extends downward from the tip of the first portion 231A to the -X side. The second wiring 232 has a first portion 232A and a second portion 232B. The first portion 232A extends from the IC chip 3 to the -X side. The second portion 232B extends downward from the tip of the first portion 232A to the -X side.

[0088] The second wiring 232 is formed at a distance from the first wiring 231. The first portion 232A is located at a distance to the +Y side from the first portion 231A of the first wiring 231. The first portion 232A is parallel to the first portion 231A. The second portion 232B is located at a distance to the +Y side from the second portion 231B of the first wiring 231. The second portion 232B is parallel to the second portion 231B. The first wiring 231 and the second wiring 232 are referred to as "wirings 231, 232".

[0089] The connecting wire 233 connects the tip of the first wire 231 (the tip of the second portion 231B) to the tip of the second wire 232 (the tip of the second portion 232B). Because the first wire 231 and the second wire 232 are connected by the connecting wire 233, the detection wire 204 is formed in a loop shape. The second portions 231B and 232B are formed in parallel with the inclined portions 221B and 222B. The second portions 231B and 232B are formed between the inclined portions 221B and 222B.

[0090] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 200 of this embodiment, at least a portion of the detection wiring 204 is formed between the first separation wire 221 and the second separation wire 222. Therefore, when the intermediate region 223 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the wiring 231 and 232 are disconnected and enter a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0091] Since the separation lines 221 and 222 have inclined sections 221B and 222B, an intermediate region 223 that is prone to becoming a three-dimensional bend is formed between the inclined sections 221B and 222B. This promotes the breaking of the intermediate region 223, making it easier to disconnect the wiring 231 and 232. Thus, the opening history of the door 101 can be detected with high accuracy.

[0092] [Door Opening Detection Sensor] (Third Embodiment) Figure 16 is a plan view of the door open detection sensor 300 according to the third embodiment. Components common to other embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0093] As shown in Figure 16, the door open detection sensor 300 differs from the door open detection sensor 200 (see Figure 15) in that it has a second separation line 322 instead of a second separation line 222. The second separation line 322 is formed in a straight line extending to the +Y side, starting from the second end edge 10b. The second separation line 322 is formed at a position that coincides with the main line portion 221A of the first separation line 221 when viewed from the Y direction. In other words, the second separation line 322 is formed on the extension of the main line portion 221A.

[0094] The second portions 231B and 232B of the detection wiring 204 are formed parallel to the inclined portion 221B. A portion of the second portions 231B and 232B is formed between the inclined portion 221B and the second separation line 322.

[0095] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 300 of this embodiment, at least a portion of the detection wiring 204 is formed between the first separation wire 221 and the second separation wire 322. Therefore, when the intermediate region 223 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the wirings 231 and 232 are disconnected and enter a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0096] [Door open detection sensor] (Fourth embodiment) Figure 17 is a plan view of the door open detection sensor 400 according to the fourth embodiment. Components common to other embodiments are denoted by the same reference numerals and their description is omitted.

[0097] As shown in Figure 17, the door open detection sensor 400 differs from the door open detection sensor 100 (see Figure 1) in that it has a first separation line 421 instead of the first separation line 21, and a detection wiring 404 instead of the detection wiring 4.

[0098] The first branch line 421 has a main line section 21A and two branch sections 421B and 421C. The first branch section 421B has an L-shape, having a first part (inclined section) extending from the tip (-Y side end) of the main line section 21A toward the +X side, and a second part extending from the tip of the first part toward the -Y side. The second branch section 421C has an inverted L-shape, having a first part (inclined section) extending from the tip of the main line section 21A toward the -X side, and a second part extending from the tip of the first part toward the -Y side.

[0099] The tip of the second separation line 22 (the +Y side end) may reach the rectangular region (intermediate region 423) between the first branch section 421B and the second branch section 421C. The tip of the second separation line 22 is, for example, located on the +Y side of the tips of the branch sections 421B and 421C when viewed from the X direction.

[0100] The detection wiring 404 includes a first wiring 431, a second wiring 432, and a connection wiring 433. The base ends of the first wiring 431 and the second wiring 432 are electrically connected to the IC chip 3.

[0101] The first wiring 431 has a first portion extending to the -X side, a second portion extending to the +Y side, a third portion extending to the -X side, and a fourth portion extending to the -Y side. The second wiring 432 has a first portion extending to the -X side, a second portion extending to the +Y side, a third portion extending to the -X side, and a fourth portion extending to the -Y side. The connecting wiring 433 connects the end of the first wiring 431 to the end of the second wiring 432. The detection wiring 404 is formed in a loop shape.

[0102] The second, third, and fourth parts of wiring 431, 432 are formed between branch sections 421B, 421C and the second separation line 22.

[0103] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 400 of this embodiment, at least a portion of the detection wiring 404 is formed between the first separation wire 421 and the second separation wire 22. Therefore, when the intermediate region 423 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the wiring 431 and 432 are disconnected and enter a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0104] [Door open detection sensor] (Fifth embodiment) Figure 18 is a plan view of the door open detection sensor 500 according to the fifth embodiment. Components common to other embodiments are denoted by the same reference numerals and their description is omitted.

[0105] As shown in Figure 18, the door open detection sensor 500 differs from the door open detection sensor 100 (see Figure 1) in that it has separation lines 521 and 522 instead of separation lines 21 and 22, and has a detection wire 504 instead of detection wire 4.

[0106] The first branch line 521 has a main line section 21A and a bent section 521B. The bent section 521B has an inverted L-shape, having a first portion (inclined portion) extending to the -X side from the tip of the main line section 21A and a second portion extending to the -Y side from the tip of the first portion.

[0107] The second separation line 22 has a main line section 522A and a bent section 522B. The main line section 522A is formed in a straight line extending to the +Y side starting from the second end edge 10b. The bent section 522B has an inverted L-shape, having a first part (inclined part) extending to the +X side from the tip of the main line section 522A and a second part extending to the +Y side from the tip of the first part. A rectangular region (intermediate region 523) is formed between the bent section 521B and the bent section 522B.

[0108] The detection wiring 504 extends from the IC chip 3 and is formed by reaching the intermediate region 523.

[0109] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 500 of this embodiment, at least a portion of the detection wiring 504 is formed between the first separation line 521 and the second separation line 522. Therefore, when the intermediate region 523 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the detection wiring 504 breaks and enters a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0110] [Door open detection sensor] (6th embodiment) Figure 19 is a plan view of the door open detection sensor 600 according to the sixth embodiment. Components common to other embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0111] As shown in Figure 19, the door open detection sensor 600 differs from the door open detection sensor 500 (see Figure 18) in that it has a second separation line 22 instead of a second separation line 522, and a detection wiring 604 instead of a detection wiring 4.

[0112] The second separation line 22 is formed at a position that coincides with the main line portion 21A of the first separation line 521 when viewed from the Y direction. A rectangular region (intermediate region 623) is formed between the bent portion 521B of the first separation line 521 and the tip portion of the second separation line 22.

[0113] The detection wiring 604 extends from the IC chip 3 and is formed by reaching the intermediate region 623. The detection wiring 604 has an L-shape, extending from the IC chip 3 towards the -X side and from its tip towards the -Y side.

[0114] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 600 of this embodiment, at least a portion of the detection wiring 604 is formed between the first separation wire 521 and the second separation wire 22. Therefore, when the intermediate region 623 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the detection wiring 604 breaks and enters a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0115] [Door open detection sensor] (7th embodiment) Figure 20 is a plan view of the door open detection sensor 700 according to the seventh embodiment. Components common to other embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0116] As shown in Figure 20, the door open detection sensor 700 differs from the door open detection sensor 100 (see Figure 1) in that it has separation lines 721 and 722 instead of separation lines 21 and 22, and has a detection wire 704 instead of detection wire 4.

[0117] The first separation line 721 extends from the first edge 10a of the laminate 10 toward the second edge 10b. The first separation line 721 is formed as a straight line extending toward the -Y side starting from the first edge 10a. The second separation line 722 extends from the second edge 10b of the laminate 10 toward the first edge 10a. The second separation line 22 is formed as a straight line extending toward the +Y side starting from the second edge 10b.

[0118] The first separation line 721 and the second separation line 722 are located at different positions in the X direction. The portion including the tip of the first separation line 721 (the -Y end) (parallel section 721A) and the portion including the tip of the second separation line 722 (the +Y end) (parallel section 722A) are parallel to each other with a gap between them in the X direction.

[0119] A rectangular region (intermediate region 723) is formed between the parallel section 721A of the first separation line 721 and the parallel section 722A of the second separation line 722.

[0120] The detection wiring 704 extends from the IC chip 3 and is formed by reaching the intermediate region 723. The detection wiring 704 has an L-shape, extending from the IC chip 3 towards the -X side and from its tip towards the -Y side.

[0121] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 700 of this embodiment, at least a portion of the detection wiring 704 is formed between the first separation line 721 and the second separation line 722. Therefore, when the intermediate region 723 breaks due to the separation of the first adhesive portion 13 and the second adhesive portion 14, the detection wiring 704 breaks and enters a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0122] In the door opening detection sensor 700, the first separation line 721 and the second separation line 722 have parallel sections 721A and 722A. The region between the parallel sections 721A and 722A (intermediate region 723) is prone to breakage starting from any point in the parallel section. Therefore, the detection wiring 704 can be easily disconnected. Thus, the opening history of the door 101 can be detected with high accuracy.

[0123] [Door open detection sensor] (8th embodiment) Figure 21 is a plan view of the door open detection sensor 800 according to the eighth embodiment. Components common to other embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0124] As shown in Figure 21, the door open detection sensor 800 differs from the door open detection sensor 100 (see Figure 1) in that it has separation lines 821 and 822 instead of separation lines 21 and 22, and has a detection wire 804 instead of detection wire 4.

[0125] The first separation line 821 extends from the first edge 10a of the laminate 10 toward the second edge 10b. The first separation line 821 is formed as a straight line extending toward the -Y side starting from the first edge 10a. The second separation line 822 extends from the second edge 10b of the laminate 10 toward the first edge 10a. The second separation line 822 is formed as a straight line extending toward the +Y side starting from the second edge 10b.

[0126] The first separation line 821 and the second separation line 822 are located at the same position in the X direction. The tip of the first separation line 821 (the -Y side tip) and the tip of the second separation line 822 (the +Y side tip) are located apart in the Y direction. The tips of the first separation line 821 and the second separation line 822 face each other in the Y direction.

[0127] The detection wiring 804 extends from the IC chip 3, passes between the tip of the first separation wire 821 and the tip of the second separation wire 822, and is formed further to the -X side.

[0128] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 800 of this embodiment, at least a portion of the detection wiring 804 is formed between the first separation line 821 and the second separation line 822. Therefore, when the laminate 10 breaks due to the separation of the first adhesive part 13 and the second adhesive part 14, the detection wiring 804 breaks and enters a low conductivity state (for example, a non-conductive state). Thus, the opening history of the door 101 can be detected with high accuracy.

[0129] In the door open detection sensor 800, the first separation wire 821 and the second separation wire 822 are formed so that their ends face each other. As a result, the region between the end of the first separation wire 821 and the end of the second separation wire 822 is prone to breakage. Therefore, the detection wiring 804 can be easily disconnected. Thus, the opening history of the door 101 can be detected with high accuracy.

[0130] [Door open detection sensor] (9th embodiment) Figure 22 is a plan view of the door open detection sensor 900 according to the ninth embodiment. Components common to other embodiments are denoted by the same reference numerals and their descriptions are omitted.

[0131] As shown in Figure 22, the door open detection sensor 900 differs from the door open detection sensor 100 (see Figure 1) in that it has separation lines 921 and 922 instead of separation lines 21 and 22.

[0132] The first branch line 921 has a main line section 21A (first main line section) and two branch sections 21B and 921C. The first branch line 921 has a second branch section 921C instead of the second branch section 21C (see Figure 1).

[0133] The second branch section 921C extends at an inclination relative to the main line section 21A. The second branch section 921C extends at an inclination so as to descend from the tip (-Y side end) of the main line section 21A and transition to the -X side. The second branch section 921C is formed to be longer than the first branch section 21B. In a plan view, the second branch section 921C reaches the vicinity of the second side edge 10d (-X side edge) of the laminate 10. The distance between the tip of the second branch section 921C and the second side edge 10d is, for example, 2 mm or more and 5 mm or less. The second branch section 921C is an example of the "first inclined section".

[0134] The second separation line 922 has a main line portion 922A (second main line portion) and an inclined portion 922B. The second separation line 922 differs from the second separation line 22 (see Figure 1) in that it has an inclined portion 922B. The main line portion 922A is formed in a straight line that extends to the +Y side starting from the second end edge 10b of the laminate 10.

[0135] The inclined portion 922B extends at an angle relative to the main line portion 922A. The inclined portion 922B extends at an angle that descends from the tip (+Y side end) of the main line portion 922A and transitions to the -X side. In a plan view, the inclined portion 922B reaches the vicinity of the second side edge 10d (-X side edge) of the laminate 10. The distance between the tip of the inclined portion 922B and the second side edge 10d is, for example, 2 mm or more and 5 mm or less. The inclined portion 922B is an example of a "second inclined portion".

[0136] At least a portion of the inclined section 922B (second inclined section) is formed parallel to the second branch section 921C (first inclined section). The inclined section 922B and the second branch section 921C are formed parallel to each other with a gap in the Y direction. The laminated body 10 between the inclined section 922B and the second branch section 921C extends diagonally downward to the left in Figure 22. More specifically, the laminated body 10 between the inclined section 922B and the second branch section 921C is formed in a strip shape that extends inclined downwards and transitions to the -X side from the region between the tip of the main line section 21A and the tip of the main line section 922A.

[0137] [Effects of the door open detection sensor and door open detection system according to the embodiment] In the door opening detection sensor 900 of this embodiment, the detection wiring is disconnected and enters a low conductivity state (for example, a non-conductive state) due to the rupture of the laminate 10 caused by the separation of the first adhesive portion 13 and the second adhesive portion 14. Therefore, the opening history of the door 101 can be detected with high accuracy.

[0138] In the door open detection sensor 900, at least a portion of the inclined portion 922B (second inclined portion) is formed in parallel with the second branch portion 921C (first inclined portion), so a strip-shaped portion 30 is formed between them.

[0139] If there is a difference in the thickness direction (Z direction) between the first main surface 101c of the door 101 and the first main surface 102c of the actuated body 102 (see Figure 3), the bending rigidity of the laminate 10 may cause a peeling force to be applied to the first adhesive portion 13 or the second adhesive portion 14 (see Figure 3). In contrast, the door open detection sensor 900 can secure a wide adhesive area of ​​the laminate 10 by the first separation line 921 and the second separation line 922. For example, the +Y side portion of the second branch portion 921C is less susceptible to peeling forces and is easier to maintain in its adhesive state. The -Y side portion of the inclined portion 922B is also less susceptible to peeling forces and is easier to maintain in its adhesive state. Furthermore, the bending deformation of the strip-shaped portion 30 reduces the peeling force applied to the adhesive portion 14 (see Figure 3). Therefore, the door open detection sensor 900 is less likely to peel off from the door 101 and actuated body 102.

[0140] [Door open detection sensor] (First modified example of the 9th embodiment) Figure 23 is a plan view of the door open detection sensor 900A, which is a first modified example of the door open detection sensor 900. As shown in Figure 23, the door open detection sensor 900A differs from the door open detection sensor 900 (see Figure 22) in that it has first to third side separation lines 924A to 924C.

[0141] The first to third side separation lines 924A to 924C are formed in a straight line extending to the +X side, starting from the second side edge 10d (the side edge on the -X side) of the laminate 10. The first to third side separation lines 924A to 924C are formed at intervals in the Y direction.

[0142] The first side separation line 924A is formed between the tip of the second branch section 921C and the tip of the inclined section 922B when viewed from the X direction. The second side separation line 924B is formed on the +Y side of the tip of the second branch section 921C when viewed from the X direction. The third side separation line 924C is formed on the -Y side of the tip of the inclined section 922B when viewed from the X direction.

[0143] The first to third side separation lines 924A to 924C are set to be long enough to reach the tip of the second branch section 921C and the tip of the inclined section 922B when viewed from the Y direction.

[0144] In the door open detection sensor 900A, the first to third side separation lines 924A to 924C can distribute the stress that would otherwise cause the strip-shaped portion 30 between the inclined portion 922B and the second branch portion 921C to lift up, specifically at the end on the second side edge 10d side. Therefore, the portion including the second side edge 10d can be made less likely to peel off.

[0145] The door open detection sensor 900A shown in Figure 23 has first to third side separation lines 924A to 924C formed on it, but the side separation lines formed on the laminate 10 may consist of only the first side separation line 924A. The side separation lines may consist of one of the second side separation line 924B and the third side separation line 924C, and the first side separation line 924A.

[0146] [Door open detection sensor] (Second modified example of the ninth embodiment) Figure 24 is a plan view of the door open detection sensor 900B, which is a second modified example of the door open detection sensor 900. As shown in Figure 24, the door open detection sensor 900B differs from the door open detection sensor 900 (see Figure 22) in that the main line portion 1021A of the first separation line 1021 is curved (wavy). The main line portion 1021A extends towards the -Y side while meandering, starting from the first end edge 10a. The main line portion 1021A is, for example, a wavy line formed by alternately connecting arcs that are convex towards the -X side and arcs that are convex towards the +X side. The first branch portion 21B and the second branch portion 921C are inclined with respect to at least a part of the main line portion 1021A.

[0147] [Door open detection sensor] (Third modified example of the ninth embodiment) Figure 25 is a plan view of the door open detection sensor 900C, which is a third modified example of the door open detection sensor 900. As shown in Figure 25, the door open detection sensor 900C differs from the door open detection sensor 900 (see Figure 22) in that the main line portion 1121A of the first separation line 1121 is curved (arc-shaped). The first branch portion 21B and the second branch portion 921C are inclined with respect to at least a portion of the main line portion 1121A.

[0148] As shown in Figures 24 and 25, the separation line is not limited to a straight line; it may also be curved. The separation line may also be zigzag.

[0149] Although embodiments of the present invention have been described above, the configurations and combinations thereof in the embodiments are merely examples, and additions, omissions, substitutions, and other modifications to the configurations are possible without departing from the spirit of the present invention. The separation lines 21 and 22 in the door opening detection sensor 100 shown in Figure 1 are continuous cuts formed in the laminate 10, but the separation lines can be any structure that reduces the breaking strength of the laminate. The separation lines can also be, for example, intermittently formed cuts (perforation lines), half-cuts, etc.

[0150] In the door opening detection sensor 100 shown in Figure 2, the base material 1 is formed by combining an inner base material 1A and an outer base material 1B, but the base material may also be an integrated structure. In the door open detection sensor 100 shown in Figure 1, the tip (branching point) of the first separation wire 21 is branched into two, but the number of branches in the separation wire is not particularly limited. The number of branches can be any number of two or more, for example. The antenna 2 in the door opening detection sensor 100 shown in Figure 1 is rectangular, but the shape of the antenna is not particularly limited.

[0151] In the door open detection sensor 100 shown in Figure 1, of the first separation line 21 and the second separation line 22, the first separation line 21 has a main line section 21A and branch sections 21B and 21C that are inclined with respect to the main line section 21A. However, the separation line having a main line section and an inclined section that is inclined with respect to the main line section may be at least one of the first separation line and the second separation line. That is, the separation line having a main line section and an inclined section may be one of the first separation line and the second separation line, or both. [Explanation of Symbols]

[0152] 1... Base material, 1a... First edge, 1b... Second edge, 2... Antenna, 3... IC chip, 4,204,404,504,604,704,804... Sensing wiring, 5... Adhesive layer, 13... First sticking part, 14... Second sticking part, 21,221,4 21,521,721,821...first separation line, 21A,221A...main line part (first main line part), 22,222,322,522,722,822...second separation line, 222A,522A...main line part, 21B...first branch part (slope part), 21C...Second branch section (inclined section), 221B...Inclined section, 222B...Inclined section, 721A...Parallel section, 722A...Parallel section, 100, 200, 300, 400, 500, 600, 700, 800, 900, 900A, 900B, 900C...Door open detection sensor, 101...Door, 102...Operated object, 921C...Second branch section (first inclined section), 922A...Main line section (second main line section), 922B...Inclined section (second inclined section), 1000...Door open detection system, 1001...External equipment

Claims

1. A door open detection sensor that detects the opening of a door that can be opened and closed relative to an object being operated on, A substrate that is attached across the actuated body and the door, An antenna for wireless communication provided on the substrate, The aforementioned antenna is electrically connected to an IC chip, The IC chip is connected to a detection wire, The substrate has a first adhesive portion and a second adhesive portion that are attached to the door and the object to be operated by an adhesive layer, respectively. A first separation line and a second separation line are formed between the first adhesive portion and the second adhesive portion of the substrate. The first separation line extends from the first end edge of the substrate toward the second end edge opposite the first end edge, The second separation line extends from the second edge of the substrate toward the first edge, The detection wiring is formed, at least in part, between the first separation line and the second separation line. Door open detection sensor.

2. At least one of the first separation line and the second separation line has a main line portion formed in a straight line and an inclined portion that is inclined with respect to the main line portion. The door open detection sensor according to claim 1.

3. At least one of the first separation line and the second separation line has a main line portion formed in a curved shape and an inclined portion that is inclined with respect to the main line portion. The door open detection sensor according to claim 1.

4. The first and second separation lines are formed in a straight line and have parallel sections formed at intervals and parallel to each other. The door open detection sensor according to claim 1.

5. The first and second separation lines are formed in a straight line, with their ends facing each other. The door open detection sensor according to claim 1.

6. The first separation line has a first main line portion and a first inclined portion that extends from the tip of the first main line portion at an inclination relative to the first main line portion. The second separation line has a second main line portion and a second inclined portion that extends from the tip of the second main line portion at an inclination relative to the second main line portion. At least a portion of the second inclined portion is formed parallel to the first inclined portion. The door open detection sensor according to claim 1.

7. A door open detection sensor according to any one of claims 1 to 6, The system includes an external device that receives the detection result from the door open detection sensor via wireless communication. Door open detection system.

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