Drum and management system

Abstract

To provide a drum and a management system that can easily grasp the remaining amount of a linear member wound around the drum.SOLUTION: A drum 1 comprises a winding drum part 10 which has its outer periphery wound with a linear member 2, a pair of flange parts 20 (21, 22) provided at both axial ends of the winding drum part 10, and a weight measuring instrument 30 which can measure the weight of the linear member 2 wound around the outer periphery. One of the pair of flange parts 20 is provided with a display unit 40 capable of displaying the measured weight of the linear member 2 or the length of the linear member 2 calculated from the weight.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a drum on which a linear member is wound and a management system. [Background technology]

[0002] Drums have been proposed for use in transporting long and heavy linear members such as electric wires and cables or for storing them in warehouses. Patent Document 1 discloses a drum that includes a cylindrical reel portion around which the linear member is wound and a pair of flanges provided on both axial sides of the reel portion, and the linear member is transported or stored in a warehouse together with the drum while the linear member remains wound on the reel portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-144249 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-192480 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in order to collect drums or purchase new drums, it is necessary to properly manage the remaining amount of linear material wound around the drum. For this purpose, Patent Document 2 discloses a length measuring device that can determine the length of a linear material by measuring the distance between multiple RFID tags previously provided within the linear material. However, with the length measuring device disclosed in Patent Document 2, in order to determine the remaining amount of the linear material, it is necessary to remove the linear material from the drum and align the linear material with a detector to measure its length, which is a cumbersome task. For this reason, it is desirable to be able to determine the remaining amount of the linear material while it is still wound around the drum.

[0005] The present invention has been made in consideration of the above-mentioned situation, and its purpose is to provide a drum and management system that makes it easy to grasp the remaining amount of linear material while it is still wound around the drum. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the drum according to the present invention comprises: a winding drum around which a linear member is wound; a pair of flanges provided at both axial ends of the winding drum; a weight measuring device capable of measuring the weight of the linear member wound around the outer periphery; A drum comprising: One of the pair of flanges is provided with a display capable of displaying the measured weight of the linear member or the length of the linear member calculated from the weight. Being a drum. [Effects of the Invention]

[0007] According to the drum of the present invention, a display is provided on one of the pair of flanges, allowing the administrator (user) to grasp at a glance the measured and calculated remaining amount (weight or length) of the linear material 2. In other words, this configuration makes it easy to grasp the remaining amount of the linear material while it is still wound on the drum.

[0008] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic perspective view showing a drum according to one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic side view of the drum shown in FIG. [Figure 3] FIG. 3 is a schematic cross-sectional view taken along the line AA in FIG. [Figure 4] FIG. 4 is an enlarged schematic view of part B in FIG. 3, showing a state in which the linear member is wound around the drum. [Figure 5] FIG. 5 is a schematic diagram of a display provided on the drum shown in FIG. [Figure 6] FIG. 6 is a block diagram showing an example of the configuration of a management system for linear members. [Figure 7] FIG. 7 is a flowchart showing an example of the operation of the management system shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] A drum 1 according to one embodiment of the present invention will be described below with reference to the drawings. The drum 1 shown in Fig. 1 and other figures is used for transporting or storing in a warehouse a long, heavy linear member 2 (see Fig. 4) such as an electric wire or cable wound around the drum 1.

[0011] The present invention is not limited to the embodiments described below, and can be appropriately modified, improved, etc. In addition, the material, shape, size, number, location, etc. of each component in the embodiments described below are arbitrary and not limited as long as they can achieve the present invention.

[0012] <Outline of drum 1 configuration> First, a general configuration of the drum 1 will be described. As shown in Fig. 1 etc., the drum 1 includes a cylindrical winding drum 10 around whose outer peripheral surface 11 a linear member 2 is wound, and a pair of flanges 20 (21, 22) provided at both axial ends of the winding drum 10. In this example, the winding drum 10 and each flange 20 constituting the drum 1 are made of metal. However, the winding drum 10 and each flange 20 constituting the drum 1 may also be made of wood.

[0013] The drum 1 may be configured, for example, to include a rotation support portion (not shown) that rotatably supports the winding drum portion 10, allowing the winding drum portion 10 to rotate relative to the pair of flange portions 20 by this rotation support portion, or may be configured such that both axial ends of the winding drum portion 10 are inserted into the centers of the pair of flange portions 20, allowing the drum 1 to rotate integrally with the pair of flange portions 20. However, the drum 1 is configured so that the linear member 2 can be wound around the outer peripheral surface 11 of at least the winding drum portion 10 by rotating it.

[0014] As shown in Fig. 3, the winding drum 10 has a double cylindrical structure consisting of an inner cylinder 12 and an outer cylinder 13. In this example, the inner cylinder 12 is solid. However, the inner cylinder 12 may also be hollow.

[0015] Weight measuring devices 30 are provided at multiple locations (eight locations in this example) in the circumferential direction between the inner tube 12 and the outer tube 13 (see FIG. 3), and these weight measuring devices 30 are provided over the entire axial area (see FIG. 2). The weight measuring devices 30 are devices or equipment for measuring the weight of the linear member 2 wound around the outer peripheral surface 11 of the winding drum 10, and for example, a load cell (a beam-type load cell in this example) is used.

[0016] Here, when the linear member 2 is wound around the outer peripheral surface 11 of the winding drum 10, the outer tube 13 is distorted toward the inner tube 12 (i.e., radially inward) due to the weight of the linear member 2. That is, in this example, after the winding is completed, the weight of the linear member 2 is measured by measuring this distortion. Note that, since the linear member 2 is wound evenly around the outer peripheral surface 11 when the linear member 2 is wound around the drum 1, by measuring the weight of the linear member 2 with a weight measuring device 30, the length of the linear member 2 can be calculated from this measured weight and a predetermined unit mass of the linear member 2 (details will be described later).

[0017] 1 and other figures, the pair of flange portions 20 are each formed in a disk shape, and the outer diameter of the pair of flange portions 20 is set to be larger than the outer diameter of the winding drum portion 10. The pair of flange portions 20 have the function of preventing the linear member 2 from falling off from the winding drum portion 10 when the linear member 2 is wound around the winding drum portion 10, and of guiding the winding of the linear member 2 around the winding drum portion 10.

[0018] A display 40 (see also FIG. 6, details of which will be described later) capable of digitally displaying predetermined information is provided on the outer surface of one of the flanges 21 of the pair of flanges 20. The predetermined information may be, for example, the weight of the linear member 2 measured by the weight measuring device 30 or the length calculated from this weight (details of which will be described later).

[0019] Furthermore, an insertion port 23 into which a power connector can be inserted is provided at a predetermined position on the outer surface of the flange 21 in order to supply power to the display 40. The shape of the insertion port 23 is not limited to the shape shown in the figure, and is formed to correspond to the shape of the connector provided on the power line.

[0020] A winding start opening 24 that penetrates in the axial direction (thickness direction of the flange 22) is provided at a predetermined position of the other flange 22 of the pair of flanges 20. The winding start opening 24 functions as an insertion opening for pulling out the winding start end portion (not shown) of the linear member 2 from the inside to the outside of the flange 22 when the linear member 2 is wound around the drum 1.

[0021] The linear member 2 can be wound around the drum 1 configured as described above by a known method.

[0022] <Configuration example of management system 100> Next, a configuration example of a management system 100 for a linear member 2 will be described. As shown in Fig. 7, the management system 100 includes a drum 1 and an administrator terminal 50. In the management system 100, for example, a communication unit 49 of the drum 1 and a communication unit 51 of the administrator terminal 50 are connected via a network or the like (not shown), thereby allowing communication between the drum 1 and the administrator terminal 50.

[0023] [Display 40] The display 40 is a device that allows a manager (user) to know the remaining amount of the linear member 2 while it is still wound around the drum 1. The display 40 is designed to be waterproof, and has a display unit 40a, an input unit 40b, a control unit 48, and a communication unit 49, as shown in FIG.

[0024] 5, the display unit 40a includes, for example, a digital display unit 41 and a unit display unit 42. The digital display unit 41 is, for example, a display screen that digitally displays various information corresponding to a mode described later. The unit display unit 42 is, for example, a lamp that can be turned on, and by turning on a lamp corresponding to a mode (weight measurement mode or length measurement mode) described later, the unit of the linear member 2 is visualized to the administrator.

[0025] As shown in FIG. 5, the input unit 40b includes a power button 43, a mode selection button 44, a decision button 45, a numerical value input unit 46, and a cursor switching unit 47. The power button 43 is an operation unit for switching the power of the display unit 40 ON / OFF. The mode selection button 44 is an operation unit for switching the mode of the display unit 40 (details will be described later). The decision button 45 is an operation unit that is operated when various input operations are completed. The numerical value input unit 46 is an operation unit for inputting various numerical values. The cursor switching unit 47 is an operation unit for switching the position of the cursor displayed on the digital display unit 41.

[0026] The control unit 48 performs processing such as calculating the length from the measured weight of the linear member 2. The control unit 48 may be configured with processing units for each process, or each process may be performed by a single processing unit.

[0027] The communication unit 49 is realized, for example, by a NIC, and is connected to a network via a wired or wireless connection, and can send and receive information (in this example, at least remaining amount information of the linear member 2) between various terminals via the network.

[0028] (mode) The display 40 is configured to include, for example, a weight measurement mode, a length measurement mode, and an identification registration mode as modes. Switching between these modes is performed by, for example, inputting an input to the decision button 45 and cursor switch unit 47.

[0029] Weight measurement mode The weight measurement mode is a mode for displaying the weight of the linear member 2 measured by the weight measuring device 30. When the weight measurement mode is selected, the "kg" lamp in the unit display section 42 lights up and the weight of the linear member 2 is displayed on the digital display section 41.

[0030] - Length measurement mode The length measurement mode is a mode for displaying the calculated length of the linear member 2. When the length measurement mode is selected, the display information on the digital display unit 41 changes to an input screen for the unit mass (g / m) of the linear member 2 wound around the drum 1, and the unit mass of the linear member 2 is input by operating the numerical value input unit 46 and the cursor switching unit 47. After input of the unit mass of the linear member 2 is completed, when the decision button 45 is operated, the "m" lamp on the unit display unit 42 lights up and the length of the linear member 2 is displayed on the digital display unit 41. The length of the linear member 2 is calculated from (weight) / {(unit mass)×1000}.

[0031] Identification registration mode The identification registration mode is a mode for managing the remaining amount of linear member 2. When the identification registration mode is selected, the display information on the digital display unit 41 shifts to an input screen for the control number of the linear member 2 wound around the drum 1, and the control number of the linear member 2 is input by operating the numeric input unit 46 and the cursor switching unit 47. After input of the control number of the linear member 2 is completed, when an input operation is performed on the decision button 45, the display information on the digital display unit 41 shifts to an input screen for the type and size of the linear member 2, and the type and size of the linear member 2 are input by operating the numeric input unit 46 and a character input unit (not shown). As a result, the remaining amount of linear member 2 wound around the drum 1 is linked to the drum 1 and registered in a memory unit 52 of a manager terminal 50 (described later).

[0032] [Administrator terminal 50] The manager terminal 50 is a terminal for managing the linear member 2 wound around the drum 1. As shown in Fig. 7 , the manager terminal 50 includes, for example, a communication unit 51, a storage unit 52, a control unit 53, an input unit 54, and an output unit 55.

[0033] The communication unit 51 is realized by, for example, an NIC or the like, and is connected to a network by wire or wirelessly, and can transmit and receive information to and from various terminals via the network.

[0034] The storage unit 52 can store the total remaining amount of each linear member 2 wound around each of the multiple drums 1 stored in the warehouse. The storage unit 52 also stores various programs including each step of a method for managing the linear members 2.

[0035] The control unit 53 processes various types of information including transmitted and received information. The control unit 53 may be configured with processing units for each process, or each process may be performed by a single processing unit. The processing units of the control unit 53 are realized, for example, by a CPU or the like executing various programs including each step of the method for managing the linear member 2 stored in the storage unit 52.

[0036] The input unit 54 can accept various input operations from the administrator. The input unit 54 may be, for example, a display screen with a touch panel function, buttons provided on the administrator terminal 50, or a keyboard connected to the administrator terminal 50. Note that the various operations are not particularly limited as long as they are operations corresponding to the input unit 54.

[0037] The output unit 55 is a medium for transmitting various information to the administrator. For example, the output unit 55 may be a display screen such as a display of the administrator terminal 50 that visualizes various information. Note that the transmission is not particularly limited as long as it is an output operation according to the administrator terminal 50.

[0038] <Example of operation of management system 100> Next, an example of the operation of the management system 100 for linear members 2 will be described with reference to FIG. 7. The following process is a process for managing the linear members 2 (particularly the remaining amount of linear members 2) by the control unit 53 of the administrator terminal 50. This process is executed, for example, by communication between the administrator terminal 50 and each of the multiple drums 1 around which the linear members 2 are wound, which are managed by the user of the administrator terminal 50 (i.e., the administrator). Note that in this example, the processing entity will be described as the control unit 53 of the administrator terminal 50, but is not limited to this.

[0039] For example, after the winding of the linear member 2 around a predetermined drum 1 is completed, the weight of the linear member 2 is measured (or the length is calculated) by the weight measuring device 30, and the measured remaining amount information of the linear member 2 is transmitted from the communication unit 49 in the display 40 of this drum 1 to the communication unit 51 of the manager terminal 50. Then, the control unit 53 checks the received remaining amount information of the linear member 2 (Sp1). Note that the timing for transmitting the remaining amount information of the linear member 2 from the drum 1 to the manager terminal 50 is not limited to the above and can be set as appropriate.

[0040] The control unit 53 calculates the current total remaining amount based on the remaining amount information of the linear member 2 received from the specified drum 1 and the total remaining amount of the linear member 2 up to the immediately preceding time registered in the memory unit 52 (Sp2), and registers the calculated total remaining amount in the memory unit 52 (Sp3).

[0041] The control unit 53 determines whether or not there is a plan to use the linear member 2 based on the delivery schedule stored in the memory unit 52, input information entered by the manager, etc. (Sp4). If there is a plan to use the linear member 2 (Yes in Sp4), the processing of the control unit 53 proceeds to Sp5. On the other hand, if there is no plan to use the linear member 2 (No in Sp4), this processing flow ends.

[0042] The control unit 53 determines whether the calculated and registered total remaining amount is sufficient for the planned usage amount of linear members 2 based on the shipping schedule, input information entered by the manager, etc. (Sp5). If the total remaining amount is sufficient for the planned usage amount (Yes in Sp5), this processing flow ends. On the other hand, if the total remaining amount is insufficient (No in Sp5), the processing of the control unit 53 proceeds to Sp6.

[0043] The control unit 53 places an order for the linear member 2 based on the delivery schedule, input information input by the manager, etc. (Sp6). Then, this processing flow ends. This allows the multiple linear members 2 wound around the multiple drums 1 to be appropriately managed.

[0044] As described above, in order to place an order for the linear member 2 at Sp6, the management system 100 may be configured to further include a terminal of the order recipient (for example, the manufacturer of the linear member).

[0045] <Actions and Effects> According to this embodiment, a weight measuring device 30 is provided on the winding drum 10 around which the linear member 2 is wound, thereby making it possible to measure the weight of the linear member 2 wound around the winding drum 10. Then, by calculating the length of the linear member 2 from the weight thus measured, it is possible to determine the remaining amount of the linear member. In other words, according to this embodiment, it is possible to easily determine the remaining amount of the linear member 2 while it is still wound around the drum 1.

[0046] Furthermore, according to this embodiment, weight measuring devices 30 are provided at multiple locations around the circumferential direction of the winding drum 10 over the entire axial direction of the winding drum 10, thereby enabling the weight of the linear member 2 wound around the winding drum 10 to be accurately measured.

[0047] Furthermore, according to this embodiment, a weight measuring device 30 is provided between the inner tube 12 and the outer tube 13, and can measure the weight of the linear member 2 from the distortion of the outer tube 13 toward the inner tube 12 after winding of the linear member 2 onto the outer peripheral surface 11 of the outer tube 13 is completed. In this way, according to the drum 1 of this embodiment, the weight of the linear member 2 wound around the winding drum 10 can be measured with a simple structure.

[0048] Furthermore, according to this embodiment, the weight measuring device 30 is a load cell, so that the weight of the linear member 2 wound around the winding drum 10 can be measured easily and accurately.

[0049] Furthermore, according to this embodiment, the display 40 is provided on the flange 21, so that the manager (user) can grasp at a glance the measured and calculated remaining amount (weight or length) of the linear member 2. In other words, there is no need to check the amount of linear member 2 used or the remaining amount one by one, and it is easy to manage the remaining amount of the linear member 2. In addition, there is no need to provide so-called length marks on the linear member 2, and the cost of managing the linear member 2 can be reduced compared to when length marks are provided on the linear member 2 for management.

[0050] Furthermore, according to this embodiment, the display 40 of the drum 1 has a communication unit 49 that can communicate with an external terminal (in this example, an administrator terminal 50), so that the remaining amount of the linear member 2 can be managed in association with the drum 1.

[0051] Furthermore, according to this embodiment, the management system 100 transmits and receives information on the remaining amount of the linear member 2 between the multiple drums 1 and the administrator terminal 50, so that the total remaining amount of the linear member 2 wound around each of the multiple drums 1 can be easily and appropriately managed by the administrator terminal 50.

[0052] <Additional Notes> The features of the above-described embodiments of the drum according to the present invention will now be briefly summarized and listed below.

[0053] [1] a winding drum (10) around whose outer periphery the linear member (2) is wound; a pair of flanges (20) provided at both axial ends of the winding drum (10); a weight measuring device (30) capable of measuring the weight of the linear member (2) wound around the outer periphery; A drum (1) comprising: One (21) of the pair of flanges (20) is provided with a display (40) capable of displaying the measured weight of the linear member (2) or the length of the linear member (2) calculated from the weight. Drums (1).

[0054] According to the configuration [1] above, a display is provided on one of the pair of flanges, so that the administrator (user) can grasp at a glance the measured and calculated remaining amount (weight or length) of the linear material 2. In other words, this configuration makes it possible to easily grasp the remaining amount of the linear material while it is still wound on the drum.

[0055] [2] The drum (1) described in [1] above, The display (40) has a communication unit (49) capable of transmitting the weight and the length of the linear member (2) to an external terminal. drum.

[0056] According to the configuration [2] above, the display of the drum has a communication unit that can communicate with an external terminal, so that the remaining amount of the linear member can be managed by the external terminal in association with the drum.

[0057] [3] The drum (1) according to the above [1] or [2], The weight measuring device (30) is provided on the winding drum (10). Drums (1).

[0058] According to the configuration [3] above, a weight measuring device is provided on the winding drum around which the linear member is wound, so that the weight of the linear member wound on the winding drum can be measured. By measuring the weight of the linear member in this way, for example, the length of the linear member can be calculated from this weight.

[0059] [4] The drum (1) according to any one of [1] to [3] above, The weight measuring devices (30) are provided at a plurality of locations in the circumferential direction of the winding drum (10) over the entire axial area of ​​the winding drum (10). Drums (1).

[0060] According to the configuration [4] above, weight measuring devices are provided at multiple locations around the circumferential direction of the winding drum over the entire axial area of ​​the winding drum, thereby enabling the weight of the linear member wound around the winding drum to be accurately measured.

[0061] [5] The drum (1) according to any one of [1] to [4] above, The winding drum (10) has a double cylindrical structure consisting of an inner cylinder (12) and an outer cylinder (13), and the weight measuring device (30) is provided between the inner cylinder (12) and the outer cylinder (13). The weight measuring device (30) can measure the weight of the linear member (2) from the distortion of the outer tube (13) toward the inner tube (12) after the winding of the linear member (2) around the outer peripheral surface (11) of the outer tube (13) is completed. Drums (1).

[0062] According to the configuration [5] above, a weight measuring device is provided between the inner tube and the outer tube, and after the winding of the linear member onto the outer peripheral surface of the outer tube is completed, the weight of the linear member can be measured from the distortion of the outer tube toward the inner tube. In this way, this configuration can measure the weight of the linear member wound on the winding drum with a simple structure.

[0063] [6] The drum (1) according to any one of [1] to [5] above, The weight measuring device (30) is a load cell. Drums (1).

[0064] According to the configuration [6] above, since the weight measuring device is a load cell, the weight of the linear member wound around the winding drum can be measured easily and accurately.

[0065] [7] A drum (1) according to any one of [1] to [6] above; an administrator terminal (50) used by an administrator who manages the linear members (2) wound around each of the plurality of drums (1); A management system (100) comprising: The manager terminal (50) determines at least one of the weight and the length of the linear member (2) as the remaining amount of the linear member (2), receives remaining amount information of the linear member (2) from the plurality of drums (1), and manages the total remaining amount of the linear member (2). A management system (100).

[0066] According to the configuration [7] above, the management system transmits and receives information on the remaining amount of linear material between the multiple drums and the administrator terminal, so that the total remaining amount of linear material wound around each of the multiple drums can be easily and appropriately managed by the administrator terminal. [Explanation of symbols]

[0067] 1 drum 2 Linear members 10 Winding body 11 Outer surface 12 Inner cylinder 13 Outer cylinder 20(21,22) Pair of flanges 30 Weight measuring device 40 Display 40a Display section 40b Input section 48 Control Unit 49 Communications Department 50 Administrator terminal 100 Management Systems

Claims

1. a winding drum around which a linear member is wound; a pair of flanges provided at both axial ends of the winding drum; a weight measuring device capable of measuring the weight of the linear member wound around the outer periphery; A drum comprising: One of the pair of flanges is provided with a display capable of displaying the measured weight of the linear member or the length of the linear member calculated from the weight. drum.

2. 10. The drum of claim 1, The display device has a communication unit capable of transmitting the weight and the length of the linear member to an external terminal. drum.

3. 10. The drum of claim 1, The weight measuring device is provided on the winding drum. drum.

4. 10. The drum of claim 1, The weight measuring devices are provided at a plurality of locations on the winding drum over the entire axial area of ​​the winding drum. drum.

5. 10. The drum of claim 1, the winding drum has a double cylindrical structure consisting of an inner cylinder and an outer cylinder, and the weight measuring device is provided between the inner cylinder and the outer cylinder, the weight measuring device is capable of measuring the weight of the linear member from a distortion of the outer tube toward the inner tube after the winding of the linear member is completed around the outer peripheral surface of the outer tube, which is the outer periphery of the winding drum. drum.

6. 10. The drum of claim 1, The weight measuring device is a load cell. drum.

7. A drum according to any one of claims 1 to 6; an administrator terminal used by an administrator who manages the linear members wound around each of the plurality of drums; A management system comprising: the manager terminal determines at least one of the weight and the length of the linear member as the remaining amount of the linear member, receives remaining amount information of the linear member from the plurality of drums, and manages the total remaining amount of the linear member. Management system.

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