Attachment and system

Abstract

To provide an attachment and a system capable of detecting hooking of a lashing belt to a proper position with sufficient tension.SOLUTION: This attachment used for fixing a distributed material by a lashing belt comprises: a guide member disposed in the distributed material; a guided member which can be guided between an approximate position close to the distributed material and a separation position separated from the distributed material and to which the lashing belt is hooked; a biasing member that biases the guided member in a direction from the approximate position toward the separation position; and a wireless tag that is disposed in the guided member and that stores tag information and can transmit the tag information in non-contact with a reader.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to attachments and systems. [Background technology]

[0002] In logistics, cage carts (also called roll box pallets) are widely used as logistics materials that can transport cargo in bulk. Furthermore, a commonly used method for securing cage carts in the cargo compartment of a truck is to use lashing rails attached to the side walls of the compartment and lashing belts to secure the cage cart.

[0003] Although not a means for securing a car bogie with lashing rails or lashing belts, Patent Document 1 describes a rope health monitoring system including a rope, at least one ID tag reading device attached along a predetermined route of the rope, at least one ID tag being provided and detecting identification information of at least individual rope segments identified by the tag, and optionally a past health state and / or at least one physical rope parameter, at least one ID tag writing device writing a new health state of each rope segment to the at least one ID tag, at least one means for measuring at least one rope operating parameter, and a computing unit provided with the data, which calculates the relative longitudinal positioning of each rope segment and any additional damage or multiple damages suffered by each rope segment. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2020-537052 Summary of the Invention [Problem to be solved by the invention]

[0005] However, if the car dolly is not properly secured, it may become loose due to vibrations or acceleration / deceleration while the vehicle is in motion, causing the car dolly to move and resulting in a delivery accident such as cargo collapse. Examples of cases where the securing is not proper include when the lashing belt is hung on the car dolly at a different height than the lashing rail, or when the tension of the lashing belt is insufficient.

[0006] However, there is a problem in that the car bogie does not have the function to detect whether the lashing belts are attached with sufficient tension and in the appropriate position.

[0007] Furthermore, the technology described in Patent Document 1 monitors the soundness of the rope itself, and does not monitor whether the rope is hung in an appropriate position with sufficient tension.

[0008] An object of the present disclosure is to provide an attachment and system that can detect whether a lashing belt is draped with sufficient tension and in the proper position. [Means for solving the problem]

[0009] In order to achieve the above object, the attachment in the present disclosure comprises: An attachment used when securing logistics materials with a lashing belt, a guide member disposed on the logistics material; a guided member that can be guided by the guide member between a proximity position that is close to the logistics material and a distance position that is away from the logistics material, and on which the lashing belt is hung; a biasing member that biases the guided member in a direction from the close position toward the separated position; a wireless tag that is placed on the guided member, stores tag information, and is capable of contactlessly transmitting the tag information to a reader; Equipped with. [Effects of the Invention]

[0010] According to the present disclosure, it is possible to detect whether the lashing belt is draped with sufficient tension and in the appropriate position. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram of the interior of a luggage compartment of a vehicle in a comparative example, viewed from above. [Figure 2] FIG. 2 is a view taken along the arrow A in FIG. [Figure 3] FIG. 3 is a diagram schematically illustrating a fixing means for a car base according to the embodiment of the present disclosure. [Figure 4] FIG. 4 is a diagram illustrating an attachment according to the embodiment of the present disclosure. [Figure 5] Figure 5 is a cross-sectional view of line BB in Figure 4. [Figure 6] FIG. 6 is a functional block diagram showing the functions of the system according to this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In order to clarify the fixing means of the car dolly in the embodiment of the present disclosure, the fixing means of the car dolly in a comparative example to be compared with the present embodiment will be described with reference to Figs. 1 and 2. Fig. 1 is a schematic diagram of the interior of the luggage compartment of a vehicle in the comparative example as seen from above. Fig. 2 is a view as seen from the arrow A in Fig. 1. Below, a car dolly will be described as an example of logistics material capable of transporting cargo collectively.

[0013] As shown in Figure 1, the car bogie 10 is fixed by lashing rails 20 and lashing belts 30. The car bogie 10 is a bogie that has, for example, an opening on one side and a lattice frame 11 arranged so as to surround it on three sides, and is capable of loading cargo inside the bogie. The lattice frame 11 has an upper frame 12 that forms the upper part of its outer periphery, side frames 13a and 13b that form both sides of the outer periphery, and an inner frame 14 that forms the interior surrounded by the outer periphery (see Figure 2).

[0014] The lashing rails 20 are attached to the left and right side walls 3 of the luggage compartment 2 located in the vehicle rear direction of the cabin 1. The lashing rails 20 are arranged at a predetermined height position on the side walls 3 and extend in the vehicle front-to-rear direction. The lashing rails 20 have a large number of holes (not shown) drilled at predetermined intervals in the vehicle front-to-rear direction.

[0015] (Lashing belt 30) The lashing belt 30 has a belt body 31, end fittings (hooks, etc., not shown), a ratchet 32, and a release lever (not shown). The end fittings are provided at both ends of the belt body 31. The end fittings are hooked into holes selected from a large number of holes. The positions of the end fittings hooked into the two selected holes are shown in FIG. 1 by areas C1 and C2 surrounded by dashed lines. The belt body 31 is hung on the car bogie 10. The belt body 31 hung on the car bogie 10 abuts against the side frames 13a and 13b. The positions of the side frames 13a and 13b where the belt body 31 abuts are shown in FIG. 1 by areas D1 and D2 surrounded by dashed lines.

[0016] The ratchet 32 ​​has a gear (not shown) with a rotating shaft attached to the buckle portion, and a handle (not shown) for rotating the rotating shaft. By operating the handle, the rotating shaft winds up the belt main body 31. By winding the belt main body 31 around the rotating shaft, it tightens the car bogie 10 and its tension increases. In other words, the belt main body 31 is in a tensioned state between positions C1 and D1, between positions D1 and D2, and between positions C2 and D2. In other words, by operating the handle, the tension of the belt main body 31 can be increased to secure the car bogie 10.

[0017] In response to this, by operating the release lever, the belt body 31 can be loosened, and the car bogie 10 can be released from the fixation. As described above, the tension of the belt body 31 can be adjusted by operating the handle 33 and the release lever, respectively.

[0018] However, if the belt body 31 is not hung in the appropriate position because it is hung on the car dolly 10 at a different height than the lashing rail 20, or if the belt body 31 is not hung with sufficient tension because the belt body 31 is not wound up enough, the car dolly 10 will not be secured properly, causing the car dolly 10 to move while the vehicle is traveling. The movement of the car dolly 10 may cause a delivery accident such as cargo collapse. Note that the securing means of the car dolly in the comparative example does not have a function to detect whether the belt body 31 is hung in the appropriate position with sufficient tension.

[0019] The car truck fixing means in this embodiment has a function of detecting whether the belt body 31 is hung at an appropriate position with sufficient tension.

[0020] Next, the fixing means of the car base in this embodiment will be described with reference to Fig. 3, Fig. 4, and Fig. 5. Fig. 3 is a diagram schematically showing the fixing means of the car base in the embodiment of the present disclosure. Fig. 4 is a diagram showing an attachment in the embodiment of the present disclosure. Fig. 5 is a cross-sectional view taken along line BB in Fig. 4.

[0021] The attachments 100 in this embodiment are disposed at predetermined positions (at the same height as the lashing rails 20) on the side frames 13a, 13b. In other words, the attachments 100 are disposed at positions where the belt body 31 will be hung in an appropriate position. In the following description, the side frames 13a, 13b are collectively referred to as the vertical frames 13. The vertical frames 13 are metal pipe frames. Note that, although the component on which the attachments 100 are disposed in this embodiment is the vertical frames 13, the present disclosure is not limited thereto. For example, any part of the lattice frame 11 may be used as long as it is disposed in an appropriate position where the belt body 31 can be hung.

[0022] The attachment 100 includes a guide member 110, a guided member 120, a biasing member 130, and a wireless tag 140.

[0023] The guide member 110 has an attachment portion 111 that is attached to the vertical frame 13, and two guide portions 115. The attachment portion 111 is fitted onto the vertical frame 13 from the horizontal direction and has a gripping portion 112 that grips the vertical frame 13. The attachment portion 111 has an upper base portion 113 that is formed continuously with the upper end of the gripping portion 112, and a lower base portion 114 that is formed continuously with the lower end of the gripping portion 112.

[0024] The base end 116 of the upper guide portion 115A, which is the upper of the two guide portions 115, is fixed to the upper base portion 113. The base end of the lower guide portion 115B, which is the lower of the two guide portions 115, is fixed to the lower base portion 114. The tip side of guide portion 115A extends in a direction (horizontal direction) away from the position of the upper base portion 113. The tip portion 117 of guide portion 115A has a retaining portion 118. The tip side of guide portion 115B extends in a direction (horizontal direction) away from the position of the lower base portion 114. The tip portion 117 of guide portion 115B has a retaining portion 118.

[0025] The guided member 120 is, for example, a long, flat plate member extending in the vertical direction. The guided member 120 is, for example, molded from a non-conductive material such as a resin material. The upper end of the guided member 120 has a through-hole 121A. The guide portion 115A is inserted into the through-hole 121A. The lower end of the guided member 120 has a through-hole 121B. The guide portion 115B is inserted into the through-hole 121B. This allows the guided member 120 to be guided between a proximity position where it is close to the vertical frame 13 (guide portion 115) and a remote position where it is away from the vertical frame 13. Note that the anti-slip portion 118 prevents the guided member 120 from falling off the guide portion 115. Note that the proximity position includes a contact position where the guided member 120 contacts the vertical frame 13.

[0026] The outer surface 120a (the surface on the left side in FIG. 5) of the guided member 120 is the surface on which the belt main body 31 is hung.

[0027] The biasing member 130 is a coil spring disposed in a compressed state between the guide portion 115 and the guided member 120. The elastic coefficient of the biasing member 130 is set so that the belt main body 31 obtains the necessary tension. The biasing member 130 biases the guided member 120 in a direction from the close position toward the separated position. As a result, when the belt main body 31 is not wrapped around the guided member 120, the guided member 120 moves to the separated position. When the belt main body 31 is wrapped around the guided member 120, as the tension of the belt main body 31 increases, the pushing force of the belt main body 31 increases, causing the guided member 120 to move in a direction DR1 from the separated position toward the close position. Furthermore, as the tension of the belt main body 31 decreases, the pushing force of the belt main body 31 decreases, causing the guided member 120 to move in a direction DR2 from the close position toward the separated position. The biasing force of the biasing member 130 is set according to the magnitude of the tension of the belt main body 31 when the belt main body 31 is wrapped around the guided member 120 with sufficient tension and in an appropriate position.

[0028] (Radio tag 140) The wireless tag 140 is an IC tag used for RFID (Radio Frequency Identification) and is also called an RFID tag. The wireless tag 140 is disposed on the inner surface 120b of the guided member 120. The wireless tag 140 is movable integrally with the guided member 120 between a close position and a separated position. When the wireless tag 140 moves in a direction DR1 from the separated position toward the close position, the distance between the wireless tag 140 and the vertical frame 13 becomes narrower. In the following description, the distance between the wireless tag 140 and the vertical frame 13 is referred to as the "wireless tag frame distance." When the wireless tag 140 moves to the close position, the wireless tag frame distance becomes shortest. When the wireless tag 140 moves in a direction DR2 from the close position toward the separated position, the wireless tag frame distance becomes longer.

[0029] As the tension of the belt main body 31 increases, the wireless tag 140 moves in direction DR1. This shortens the wireless tag frame distance. Conversely, as the tension of the belt main body 31 decreases, the wireless tag 140 moves in direction DR2. This lengthens the wireless tag frame distance. Therefore, if it is possible to estimate the wireless tag frame distance, it is possible to detect that the belt main body 31 is hung in an appropriate position with sufficient tension based on the estimated wireless tag frame distance.

[0030] The wireless tag 140 has a loop antenna section (not shown) that transmits and receives signals without contact with the antenna 4 (see Figure 6), a memory section (not shown) that stores tag information, a control section (not shown) that controls the operation of the wireless tag 140, and a capacity hat section (not shown) that accumulates the energy of the carrier wave transmitted from the antenna 4 and received by the loop antenna section as a driving power source for the wireless tag 140.

[0031] Next, a system for detecting whether the belt main body 31 is hung at an appropriate position with sufficient tension using the above-described attachment 100 will be described with reference to Fig. 6. Fig. 6 is a functional block diagram showing the functions of the system in this embodiment.

[0032] The system 200 in this embodiment includes the above-described attachment 100, the above-described antenna 4, a reader / writer 5, and a control device 300.

[0033] The reader / writer 5 reads / writes data from / to the wireless tag 140 via the antenna 4. The reader / writer 5 corresponds to the "reader" in the present disclosure. The reader / writer 5 is disposed, for example, in the luggage compartment together with the antenna 4.

[0034] The control device 300 is provided in, for example, a personal computer (PC). The control device 300 includes a control unit 310 and a storage unit 320.

[0035] (Storage unit 320) The memory unit 320 is a storage device such as a ROM (Read Only Memory) that stores the BIOS (Basic Input Output System) of the computer that realizes the control device 300, a RAM (Random Access Memory) that serves as the working area of ​​the control device 300, an HDD (Hard Disk Drive) or an SSD (Solid State Drive) that stores the OS (Operating System), application programs, various information referenced when the application programs are executed, and various maps.

[0036] The storage unit 320 stores a table TL indicating the relationship between the received radio wave intensity (also called field intensity), which is the intensity of the radio waves received by the antenna 4, and the distance between the wireless tag 140 and the wireless tag frame. The storage unit 320 also stores a threshold value that serves as a criterion when the determination unit 313, which will be described later, determines the distance between the wireless tag frames.

[0037] (control unit 310) The control unit 310 is a processor such as a CPU (Central Processing Unit) or GPU (Graphics Processing Unit) of the control device 300, and functions as an acquisition unit 311, a detection unit 312, and a determination unit 313 by executing programs stored in the memory unit 320.

[0038] 6 shows an example in which the control device 300 is configured as a single device. However, the control device 300 may be realized by, for example, multiple processors, memories, and other computational resources. In this case, each unit constituting the control unit 310 is realized by at least one of multiple different processors executing a program.

[0039] When the antenna 4 receives a radio wave transmitted from the wireless tag 140, the acquisition unit 311 acquires a voltage induced by the antenna 4.

[0040] The detection unit 312 detects the received radio wave intensity (dB) of the antenna 4 based on the acquired voltage and antenna coefficient. The antenna coefficient is stored in the storage unit 320.

[0041] When the wireless tag frame distance (the distance between the wireless tag 140 and the vertical frame 13) becomes shorter, the electric field strength becomes zero on the surface of the vertical frame 13, which is a metal pipe frame, and the received radio wave strength attenuates. This makes it possible to detect the change in the received radio wave strength and estimate the wireless tag frame distance based on the detected change in the received radio wave strength. The received radio wave strength detected by the detection unit 312 corresponds to the "difficulty of the reader reading tag information" in the present disclosure. When the received radio wave strength is low (when the difficulty is high), it can be estimated that the belt main body 31 is hung in an appropriate position with sufficient tension. Conversely, when the received radio wave strength is high (when the difficulty is low), it can be estimated that the belt main body 31 is not hung in an appropriate position with sufficient tension.

[0042] The determination unit 313 estimates the distance between the wireless tag frames by referring to the table TL based on the received radio wave intensity detected by the detection unit 312, and determines whether the estimated distance between the wireless tag frames is equal to or less than a threshold. If the distance is equal to or less than the threshold, it determines that the belt main body 31 is hung in an appropriate position with sufficient tension, and if the distance exceeds the threshold, it determines that the belt main body 31 is not hung in an appropriate position with sufficient tension. The threshold value serving as the determination criterion is stored in advance in the storage unit 320 as described above. The threshold value can be set or changed depending on, for example, the type of car bogie 10, the type of wireless tag 140, or the location of the reader / writer 5.

[0043] The attachment 100 in the above embodiment is an attachment used when fixing the car bogie 10 with the lashing belt 30, and comprises a guide member 110 arranged on the car bogie 10, a guided member 120 that can be guided by the guide member 110 between a close position close to the car bogie 10 and a separated position away from the car bogie 10 and on which the lashing belt 30 is hung, a biasing member 130 that biases the guided member 120 in a direction from the close position toward the separated position, and a wireless tag 140 that is arranged on the guided member 120, stores tag information, and is capable of transmitting the tag information to the reader / writer 5 in a contactless manner.

[0044] With the above configuration, the difficulty level when the reader / writer 5 reads the tag information of the wireless tag 140 corresponds to the distance between the wireless tag frames, so it is possible to detect whether the lashing belt 30 is draped in an appropriate position with sufficient tension based on the difficulty level. In addition, since the wireless tag 140 does not require a battery, there is an advantage in that it is easy to operate without the need for battery replacement, etc.

[0045] Furthermore, in the attachment 100 according to the above embodiment, the guided member 120 has an outer surface 120a, which is the surface on which the lashing belt 30 is hung, and an inner surface 120b, which is the surface opposite the outer surface 120a and on which the wireless tag 140 is arranged. Because the inner surface 120b on which the wireless tag 140 is arranged faces the vertical frame 13, when the guided member 120 moves to the close position, the wireless tag frame distance, which is the distance between the wireless tag 140 and the vertical frame 13, becomes the shortest. This increases the difficulty for the reader / writer 5 to read the tag information of the wireless tag 140, making it possible to detect that the lashing belt 30 is hung in an appropriate position with sufficient tension.

[0046] Furthermore, in the attachment 100 in the above embodiment, the guide member 110 is made detachable from the car bogie 10. This makes it easy to handle the attachment 100 because when fixing the car bogie 10 with the lashing belt 30, the attachment 100 can be attached to the car bogie 10, and when releasing the fixation of the car bogie 10, the attachment 100 can be removed from the car bogie 10. This also makes it possible to apply this attachment 100 to fixing a general car bogie.

[0047] Furthermore, the system 200 in the above embodiment includes the attachment 100, the reader / writer 5, a detection unit 312 that detects the received radio wave strength (difficulty level) when the reader / writer 5 reads tag information, and a determination unit 313 that determines whether the lashing belt 30 is in a tensioned state based on the detected received radio wave strength. As a result, since there is a correspondence between the received radio wave strength and the distance between the wireless tag frames, it is possible to estimate the distance between the wireless tag frames based on the received radio wave strength, and ultimately to detect whether the lashing belt 30 is tucked in an appropriate position with sufficient tension.

[0048] Note that system 200 in the above embodiment may further include a notification unit that notifies the determination result of determination unit 313. This allows a cargo handler or a driver operating a vehicle to know whether the cart is secured completely or incompletely based on the notified determination result of determination unit 313, thereby making it possible to prevent delivery accidents such as cargo collapse.

[0049] Furthermore, the fixing means for the car dolly in the above embodiment uses the lashing belt 30 in which the end fittings of the belt body 31 are hooked onto the lashing rail 20, but the present disclosure is not limited to this, and for example, a lashing belt hooked onto a floor hook (not shown) attached to the floor of the luggage compartment may be used. Even in this case, by hooking the lashing belt onto the attachment 100 attached to the car dolly 10, it becomes possible to detect whether the car dolly is completely fixed. Note that while the car dolly 10 has been used as an example of logistics material in the description, logistics material fixed using floor hooks and lashing belts may also be, for example, a metal pallet.

[0050] Furthermore, the above-described embodiments are merely examples of specific embodiments for carrying out the present disclosure, and the technical scope of the present disclosure should not be interpreted as being limited by these embodiments. In other words, the present disclosure can be carried out in various forms without departing from its gist or main features. [Industrial Applicability]

[0051] The present disclosure is suitably used for management devices equipped with systems that require detecting whether a lashing belt is hung in an appropriate position with sufficient tension. [Explanation of symbols]

[0052] 1 cabin 2 luggage compartment 3 side wall 4 Antennas 5 Reader / Writer 10 Cage trolley 11 Lattice Frame 12 Upper frame 13 Vertical Frame 13a Side frame 13b Side frame 14 Internal Frame 20 Lashing Rail 30 Lashing Belt 31 Belt body 32 Ratchet 33 Handle 100 attachments 110 Guide member 111 Mounting part 112 Gripping part 113 Upper base part 114 Lower base 115 Guide part 115A Upper guide part 115B Lower guide part 116 Proximal end 117 Tip 118 Retaining part 120 Guided member 120a outer surface 120b Inside surface 121A through hole 121B Through hole 130 biasing member 140 wireless tags 200 systems 300 control device 310 Control Unit 311 Acquisition Department 312 Detection unit 313 Judgment section 320 Storage section

Claims

1. An attachment used when securing logistics materials with a lashing belt, a guide member disposed on the logistics material; a guided member that can be guided by the guide member between a proximity position that is close to the logistics material and a distance position that is away from the logistics material, and on which the lashing belt is hung; a biasing member that biases the guided member in a direction from the close position toward the separated position; a wireless tag that is placed on the guided member, stores tag information, and is capable of contactlessly transmitting the tag information to a reader; Equipped with attachment.

2. The guided member is An outer surface which is the surface on which the lashing belt is hung; an inner surface opposite to the outer surface, on which the wireless tag is disposed; having 2. The attachment of claim 1.

3. The guide member is detachably attached to the logistics material.

2. The attachment of claim 1.

4. The attachment according to claim 1; the reader; a detection unit that detects the degree of difficulty when the reader reads the tag information; a determination unit that determines whether the lashing belt is in a tensioned state based on the detected difficulty level; Equipped with system.

5. Further, a notification unit is provided to notify the determination result of the determination unit. The system of claim 4.

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