Pallet for coil and coil fixing method

Abstract

To improve an axial restricting force of a coil with respect to a pallet.SOLUTION: A pallet 1 comprises: a frame body 3; a pedestal 8 which is provided on an upper surface side of the frame body 3 to support an outer peripheral surface of a coil 80; and a pair of overhang parts 12 overhanging from the frame body 3 to both sides in a longitudinal direction of the pedestal 8. In a fixing method, the pallet 1 is prepared, and the coil 80 is placed on the pedestal 8 in a vertically placed attitude where an axial direction of the coil 80 is directed in the longitudinal direction, and a band 70 is made to pass through a center hole 81 of the coil 80, and one side and the other side of the band 70 are locked to the pair of overhang parts 12, respectively.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a coil pallet and a coil fixing method. [Background technology]

[0002] When shipping coils made of wound metal strip material, the manufacturer first loads the coils onto a pallet, and then the carrier loads the pallet with the coils onto the truck bed. To prevent vibration and subsequent damage to the coils during transport, the manufacturer's loading operation generally includes securing the coils to the pallet, and the carrier's loading operation generally includes fastening the coils to the truck bed.

[0003] Patent Documents 1 and 2 disclose pallets for coils. The pallet has a rectangular outer shape in a plan view. The coil is placed in the center of the pallet with its axial direction oriented horizontally and is bound to the pallet with a band. In this binding process, the band is passed through the center hole of the coil and is engaged with the edge of the rectangular pallet frame. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-183240 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-255179 Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional coil fixing methods, the band extends in a generally vertical direction from the edge of the coil's central hole to the edge of the pallet frame. This makes it difficult to firmly restrain the coil in the horizontal axial direction, making it difficult to suppress axial vibration of the coil during loading and transportation. Thus, conventional coil fixing methods have room for improvement in terms of the axial restraint force of the coil to the pallet.

[0006] In Patent Documents 1 and 2, a wide coil made by winding a relatively wide metal plate is targeted, and a single coil is placed on a pallet. On the other hand, multiple narrow coils may be arranged on a single pallet and fixed to the pallet with bands that are passed through the center holes of the multiple narrow coils in sequence. In this case, the axial dimension of each coil is smaller, making it more likely to generate axial vibration.

[0007] If the coils cannot be sufficiently restrained axially on the pallet, the burden on the carrier for securing them increases. Furthermore, the slings used for securing the coils must be extended widely over the loading platform. This reduces the space available for loading pallets on the loading platform, resulting in reduced transport efficiency.

[0008] An object of the present invention is to improve the axial restraining force of a coil on a pallet. [Means for solving the problem]

[0009] One aspect of the present invention provides a coil pallet on which a coil is fixed, comprising a frame body, a base provided on the upper surface of the frame body and supporting the outer surface of the coil, and a pair of protruding portions extending from the frame body on both sides of the base in the longitudinal direction and respectively engaging one side and the other side of a band passed through a central hole of the coil placed on the base in an upright position with the axial direction of the coil facing the longitudinal direction.

[0010] According to the above configuration, the coil is supported on the pallet in an upright position and is restrained to the pallet by a band passed through the center hole of the coil. One side and the other side of the band are respectively engaged with a pair of protruding portions that protrude from the frame in the longitudinal direction of the base. The longitudinal direction of the base is parallel to the axial direction of the coil. Compared to conventional configurations (for example, the configuration in which one side and the other side of the band are engaged with the edge portions of the frame of the pallet as described above), the band is inclined more sharply with respect to the vertical direction in the region from the opening edge of the coil's center hole to the pair of protruding portions. Therefore, the axial restraining force of the coil to the pallet is improved.

[0011] The coil pallet may further include a storage section provided on the underside of the frame body for storing the pair of protruding sections in a protruding manner.

[0012] According to the above configuration, when the pallet is empty, the protruding portion can be stored in the storage portion, which reduces the storage space required for the pallet.

[0013] The protruding portion may have one or more notches on the upper surface thereof that are engaged with the frame.

[0014] With the above configuration, even if an upward load acts on the overhanging portion due to the tension of the band, the load is received by the frame as the overhanging portion is locked to the frame. The tension of the band, and therefore the restraining force, can be increased while suppressing deformation or damage to the overhanging portion. Furthermore, if the pallet has a storage section and multiple notches are provided on the overhanging portion, the amount of overhang of the overhanging portion can be adjusted in stages by selecting the notch to be locked to the frame.

[0015] The protruding portion may have a pair of extension members extending in the longitudinal direction, and a connecting member connecting tip ends of the pair of extension members together.

[0016] According to the above configuration, the protruding portion is constructed to be robust, so that the tension of the band, and therefore the restraining force, can be increased.

[0017] The connecting member may be provided with a locking portion for locking the band.

[0018] According to the above-mentioned configuration, the band can be inclined as much as possible in the region extending from the edge of the opening of the central hole of the coil to the pair of protruding portions, thereby improving the axial restraining force of the coil against the pallet.

[0019] One aspect of the present invention provides a method for fixing a coil to a pallet, the method comprising: preparing a pallet having a frame body, a base provided on the upper surface of the frame body and supporting the outer surface of the coil, and a pair of protrusions protruding from the frame body on both sides of the base in the longitudinal direction; placing the coil on the base in an upright position with the axial direction of the coil facing the longitudinal direction; passing a band through a center hole of the coil; and engaging one side and the other side of the band with the pair of protrusions, respectively.

[0020] As described above, in the above configuration, the band is inclined more sharply from the vertical direction in the region from the edge of the coil's central hole to the pair of protruding portions, compared to the conventional configuration, thereby improving the axial restraining force of the coil against the pallet.

[0021] When placing the coils, the multiple coils may be placed on the base in a state where they are spaced apart in the longitudinal direction, and when passing the band, the band may be passed through the central holes of the multiple coils in sequence.

[0022] According to the above configuration, a sufficient restraining force is applied to the plurality of narrow coils, and vibrations of the coils during loading and transportation can be suppressed.

[0023] The pallet may further comprise a storage section provided on the underside of the frame body for storing the pair of protrusions in a protruding manner, and one or more notches provided on the upper side of the protrusions, and in preparation of the pallet, the pair of protrusions may be protruded from the storage section, and any of the one or more notches may be engaged with the frame body.

[0024] With the above configuration, when the pallet is empty, the protruding portion can be stored in the storage portion. This allows for smaller storage space for the pallet. When fixing the coil to the pallet, the protruding amount of the protruding portion can be adjusted in stages by selecting the notch to be engaged with the frame. Even if an upward load acts on the protruding portion due to the tension of the band, the load is absorbed by the frame as the protruding portion is engaged with the frame. The tension of the band, and therefore the restraining force, can be increased while suppressing deformation or damage to the protruding portion.

[0025] In preparing the pallet, a plurality of the frame bodies are arranged in the longitudinal direction, one of the pair of protrusions protrudes to one side from one of the frame bodies located at the end on one side of the longitudinal direction, and the other of the pair of protrusions protrudes to the other side from one of the frame bodies located at the end on the other side of the longitudinal direction; in placing the coils, the plurality of coils are placed on the plurality of pedestals; and in passing the band, the band may be passed sequentially through the central holes of the plurality of coils placed on the plurality of pedestals.

[0026] According to the above configuration, the coils can be fixed to the pallet more compactly than when a pair of protruding portions is provided on each frame. [Effects of the Invention]

[0027] According to the present invention, the axial restraining force of the coil on the pallet can be improved. [Brief explanation of the drawings]

[0028] [Figure 1]FIG. 2 is a side view showing the pallet according to the first embodiment fastened to a loading platform. [Figure 2] FIG. 1 is a front view of a pallet according to a first embodiment. [Figure 3] FIG. 2 is a plan view of the pallet according to the first embodiment. [Figure 4] FIG. 2 is an enlarged side view showing a main part of the pallet according to the first embodiment. [Figure 5A] FIG. 2 is a plan view of the pallet according to the first embodiment, showing the protruding portion in a retracted state. [Figure 5B] FIG. 2 is a side view of the pallet according to the first embodiment, showing the protruding portion in a retracted state. [Figure 6A] FIG. 10 is an enlarged side view showing the main parts of the pallet according to the second embodiment with the protruding portion stored. [Figure 6B] FIG. 10 is an enlarged side view showing a main part of a pallet according to a second embodiment with the protruding portion partially protruding. [Figure 6C] FIG. 10 is an enlarged side view showing the main parts of a pallet according to a second embodiment with the protruding portion protruding to the maximum extent. [Figure 7] FIG. 10 is a side view of a pallet according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0029] Hereinafter, embodiments will be described with reference to the drawings. Note that the same or corresponding elements are designated by the same reference numerals throughout the drawings, and detailed descriptions thereof will be omitted.

[0030] (First embodiment) 1 to 3, a pallet 1 according to this embodiment is used to transport a metal coil 80. The coil 80 is formed by winding a metal strip material such as steel or aluminum alloy, and has a cylindrical shape with a central hole 81 passing through in the axial direction. The width of the strip material corresponds to the axial length of the coil 80. In this embodiment, a case will be described in which multiple narrow coils 80 are fixed to a single pallet 1. However, this is just one example, and a single wide coil 80 can also be fixed to the same pallet 1.

[0031] When shipping the coils 80, the manufacturer of the coils 80 places multiple coils 80 on a pallet 1 and secures them to the pallet 1. In this embodiment, the coils 80 are placed in an upright position on the pallet 1. The upright position means that the axial direction of the coils 80 is oriented horizontally. Next, the carrier loads the pallet 1 with the coils 80 secured thereto onto a loading platform 90 and secures it to the loading platform 90.

[0032] The pallet 1 is made of metal, aluminum alloy, or other metal, and therefore can stably support the heavy coil 80.

[0033] The pallet 1 has a main body 2 that has a rectangular outer shape in a plan view. In this rectangle, one pair of opposite sides extends in a first direction X, and another pair of opposite sides extends in a second direction Y that is perpendicular to the first direction X. When the pallet 1 is in a normal use state or storage state, the first direction X and the second direction Y are oriented horizontally, and the up-down direction or vertical direction is perpendicular to both the first direction X and the second direction Y.

[0034] The main body 2 has a frame body 3 and four pillars 7. The frame body 3 has a pair of first frames 4, a pair of second frames 5, and an intermediate frame 6. The first frames 4, the second frames 5, the intermediate frames 6, and the pillars 7 are formed, for example, from square metal pipes (e.g., square steel pipes).

[0035] The pair of first frames 4 extend parallel to each other along the first direction X and are spaced apart from each other in the second direction Y. The pair of second frames 5 extend parallel to each other along the second direction Y and are spaced apart from each other in the first direction X. The ends of the first frames 4 and the ends of the second frames 5 are connected via pillars 7. The pair of first frames 4 and the pair of second frames 5 form the four sides of a rectangle that is the outer shape of the main body 2, and the four pillars 7 are located at the four corners of the rectangle. The intermediate frame 6 extends between the pair of second frames 5 in the second direction Y and connects the intermediate portions of the pair of first frames 4.

[0036] The bottom ends of the four pillars 7 are aligned at the same height. The bottom surfaces of the first frame 4, second frame 5, and intermediate frame 6 are aligned at the same height above the bottom ends of the pillars 7. When the pillars 7 touch a horizontal surface, the frame body 3 is suspended above the horizontal surface. The top surfaces of the first frame 4, second frame 5, and intermediate frame 6 are also aligned at the same height.

[0037] The pallet 1 is provided with a base 8 that supports the outer peripheral surface of the coil 80 in an upright position. The base 8 is provided on the upper surface side of the frame 3 and extends in a first direction X. The first direction X corresponds to the longitudinal direction of the base 8. Note that if the base 8 has a square shape in a plan view, the longitudinal direction may be any one of the directions.

[0038] The base 8 has a pair of beams 9 and a pair of supports 10. One beam 9 and one support 10 constitute one set. The two sets are arranged symmetrically with respect to the center line CY in the second direction Y of the main body 2 (extending in the first direction X in a plan view, and extending in the vertical direction in a front view), and are spaced apart from each other in the second direction Y.

[0039] The pair of beams 9 extend parallel to each other along the first direction X. Each beam 9 is joined to the upper surfaces of the pair of second frames 5 and the intermediate frame 6. As an example, the beams 9 are formed from square metal pipes (e.g., square steel pipes).

[0040] The pair of supports 10 also extend parallel to each other along the first direction X. Each support 10 has a cross section of a right-angled trapezoid and is formed, for example, by bending a metal plate. Each support 10 is adjacent to the corresponding beam 9 on the side of the center line CY in the second direction Y, and is joined to the upper surfaces of the pair of second frames and intermediate frames. The upper surfaces of the pair of supports 10 form the hypotenuses of the right-angled trapezoid and are inclined so that they move away from the center line CY in the second direction Y as they extend upward. The upper end of this inclined surface is located above the upper surface of the beam 9. A rubber sheet 11 is attached to the inclined surface of each support 10.

[0041] The pallet 1 has a pair of protruding portions 12. The pair of protruding portions 12 protrude from the frame 3 on both sides in the first direction X (that is, the longitudinal direction of the base 8).

[0042] Each protruding portion 12 has a pair of extension members 13 extending in the first direction X and a connecting member 14 connecting the tip ends of the pair of extension members 13. The connecting member 14 extends in the second direction Y. Both ends of the connecting member 14 protrude on both sides of the pair of extension members 13 in the second direction Y. The tip end of each extension member 13 is butted against and joined to the connecting member 14. The extension members 13 and the connecting member 14 are, for example, formed from a rectangular metal pipe material (e.g., a rectangular steel pipe).

[0043] The pallet 1 includes a storage section 15 that stores the protruding section 12 so that the protruding section 12 can protrude. The storage section 15 is provided on the lower surface side of the frame 3.

[0044] For example, the storage section 15 is composed of a pair of channel members 16 each having a U-shaped cross section. Each channel member 16 is open at the top and closed at the bottom, and is joined to the lower surfaces of the pair of second frames 5 and intermediate frame 6 in a position extending in the first direction X. The pair of channel members 16 are arranged symmetrically with respect to the center line CY of the main body 2, and are spaced apart from each other in the second direction Y.

[0045] The storage section 15 may be configured in any way as long as it can form a space for storing the protruding section 12 on the underside of the frame body 3 and can support the gravity of the protruding section 12 in the stored state by closing the bottom of the space. For example, instead of the channel member 16, a pair of tubular members having a rectangular closed cross section may be applied to the storage section 15 as such a space-forming member.

[0046] The distance between the pair of channel members 16 is set to match the distance between the pair of extension members 13 of each overhanging portion 12.

[0047] One end of each channel member 16 reaches the underside of one of the pair of second frames 5 and opens at an end on one side of the frame body 3 in the first direction X (the right side in FIG. 1, the bottom side in FIG. 3). The pair of extension members 13 of the protruding portion 12 on one side can enter the pair of channel members 16 through this opening on one end side. This allows the protruding portion 12 on one side to be stored in the storage section 15 formed by the pair of channel members 16. The protruding portion 12 on one side can enter the channel member 16 until the connecting member 14 abuts against one end of the channel member 16, i.e., until the protruding portion 12 on one side reaches a "fully stored state" in which it is completely stored in the storage section 15 (see FIGS. 5A and 5B).

[0048] The other end of each channel member 16 reaches the underside of the other of the pair of second frames 5 and opens at the end on the other side in the first direction X of the frame body 3 (left side in FIG. 1, upper side in FIG. 3). The pair of extension members 13 of the protruding portion 12 on the other side can enter the pair of channel members 16 through this opening on the other end side. This allows the protruding portion 12 on the other side to be stored in the storage portion 15 formed by the pair of channel members 16. The protruding portion 12 on the other side can also enter the channel member 16 until the connecting member 14 abuts against the other end of the channel member 16 (i.e., the fully stored state) (see FIGS. 5A and 5B).

[0049] As described above, in this embodiment, the storage section 15 is configured to be able to store both of the pair of protruding portions 12. The extension member 13 of each protruding portion 12 is approximately half the length of the frame body 3 in the first direction X. Therefore, both protruding portions 12 can be fully stored at the same time. This prevents the planar area of the pallet 1 from becoming large when the pallet 1 is empty. Therefore, the storage space for the pallet 1 can be small.

[0050] Hereinafter, a coil fixing method according to this embodiment, which is carried out using the pallet 1 configured as above, will be described.

[0051] First, the pallet 1 is prepared. When the pallet 1 is stored, it is highly likely that both of the protruding portions 12 are fully stored. If necessary, when preparing the pallet 1, the user of the pallet 1 grasps the connecting member 14 of the protruding portion 12 and pulls the protruding portion 12 toward themselves. As a result, the protruding portion 12 retracts from the storage portion 15 and protrudes in the first direction X relative to the frame 3.

[0052] Next, the coil 80 is placed on the base 8 in an upright position. In this embodiment, multiple narrow coils 80 are placed on the base 8 in a state where they are arranged at intervals in the first direction X. The outer peripheral surface of each coil 80 is supported by the inclined surfaces of a pair of supports 10 via rubber sheets 11. This support structure prevents the coils 80 from rolling. The axial direction of the coils 80 is also oriented in the longitudinal direction of the base 8, i.e., the first direction X. Note that, to prevent the multiple coils 80 from interfering with each other, pole-shaped buffer materials extending in the vertical direction are provided between two adjacent coils 80.

[0053] Next, the band 70 is passed through the central hole 81 of the coil 80. In this embodiment, two bands 70 are used. Each band 70 is passed sequentially through the central hole 81 of the multiple coils 80 arranged in the first direction X. Before passing the band 70 through the central hole 81, long buffer material 75 is inserted sequentially into the central holes 81 of the multiple coils 80. As a result, the lower part of the inner circumferential surface of each central hole 81 is covered with the buffer material 75. The band 70 is passed through the central hole 81 above the buffer material 75.

[0054] One end of each band 70 is drawn out from the central hole 81 of one of the multiple coils 80 that is arranged at one end in the first direction X. Hereinafter, for convenience of explanation, the opening of the central hole 81 on one side in the first direction X will be referred to as the "one end opening of the central hole 81." The other end of each band 70 is drawn out from the central hole 81 of one of the multiple coils 80 that is arranged at the other end in the first direction X. Hereinafter, for convenience of explanation, the opening of the central hole 81 on the other side in the first direction X will be referred to as the "other end opening of the central hole 81."

[0055] Next, one side of the band 70 is locked onto the overhanging portion 12 on one side. The other side of the band 70 is locked onto the overhanging portion 12 on the other side. In this embodiment, two bands 70 are used. For this reason, the overhanging portion 12 on one side is provided with a pair of locking portions 17 so that one side of each of the two bands 70 can be locked onto it. The overhanging portion 12 on the other side is also provided with a pair of locking portions 17 for the same purpose.

[0056] For each protruding portion 12, the pair of locking portions 17 are arranged spaced apart from each other in the second direction Y. The pair of locking portions 17 are arranged on the tip side of each protruding portion 12 in the first direction X. As an example, the pair of locking portions 17 are provided on both end portions of the connecting member 14.

[0057] One of the two bands 70 is engaged at one side with one of the pair of engaging portions 17 of the protruding portion 12 on one side, and at the other side with one of the pair of engaging portions 17 of the protruding portion 12 on the other side. The two engaging portions 17 engaged with the band 70 are arranged on the same side in the second direction Y (for example, the left side in FIGS. 2 and 3).

[0058] The other of the two bands 70 is similar. One side of the band 70 is locked to the other of the pair of locking portions 17 of the overhanging portion 12 on one side, and the other side of the band 70 is locked to the other of the pair of locking portions 17 of the overhanging portion 12 on the other side. The two locking portions 17 are arranged on the same side in the second direction Y (for example, the right side in Figures 2 and 3).

[0059] A large tension acts on the band 70. A binding machine (not shown) may be used to fasten the band 70. The band 70 forms a horizontally extending portion 71 extending in the first direction X while being pressed against the upper surface of the cushioning material 75. The band 70 bends at the periphery of one end opening and the periphery of the other end opening of the central hole 81. The band 70 forms an inclined extending portion 72 extending linearly from the one end opening of the central hole 81 toward the locking portion 17 of the overhanging portion 12 on one side. The band 70 forms an inclined extending portion 72 extending linearly from the other end opening of the central hole 81 toward the locking portion 17 of the overhanging portion 12 on the other side. In this way, the band 70 (particularly, the horizontally extending portion 71 and the pair of inclined extending portions 72) has an isosceles trapezoidal shape without a lower base in a side view. Here, the angle of the inclined extension portion 72 with respect to the horizontal plane (more specifically, the contact surface of the pallet 1) is referred to as the "band inclination angle θ."

[0060] In this way, one or more coils 80 are fixed to the pallet 1 according to this embodiment. The pallet 1 includes a frame 3, a base provided on the upper surface of the frame 3 and supporting the outer peripheral surface of the coil 80, and a pair of protruding portions 12 protruding from the frame 3 on both sides in the longitudinal direction (first direction X) of the base 8. The pair of protruding portions 12 respectively lock one side and the other side of the band 70 passed through the central hole 81 of the coil 80 placed on the base 8 in an upright position with the axial direction of the coil 80 facing the longitudinal direction (first direction X) of the base 8.

[0061] That is, the coil 80 is supported on the pallet 1 in an upright position and is restrained to the pallet 1 by a band 70 that passes through a center hole 81 of the coil 80. One side and the other side of the band 70 are respectively engaged with a pair of protruding portions 12 that protrude from the frame 3 in the longitudinal direction (first direction X) of the base 8. The longitudinal direction of the base 8 is parallel to the axial direction of the coil 80.

[0062] As a result, compared to conventional configurations, such as configurations in which the band is fastened to the edge of the frame, the inclined extension portion 72 of the band 70 is inclined more sharply relative to the vertical direction. In other words, the band inclination angle θ is reduced. This improves the axial restraining force of the coil 80 on the pallet 1. In particular, when multiple narrow coils 80 are placed side by side in an upright position on the pallet 1, each coil 80 is likely to vibrate in the axial direction. In such cases, according to this embodiment, sufficient restraining force can be applied to each coil 80, thereby suppressing the axial vibration of each coil 80.

[0063] In a conventional configuration, when a carrier loads a pallet 1 with coil 80 onto a loading platform 90, the carrier secures the coil 80 to the loading platform 90 with a sling 99 in order to apply an equal axial restraining force to the coil 80. According to this embodiment, vibration of the coil 80 can be suppressed without using the sling 99. For example, if the relative displacement of the pallet 1 and the coil 80 secured thereto with respect to the loading platform 90 can be suppressed by using a pallet positioning tool 91 that positions the pallet 1 relative to the loading platform 90, the vibration of the coil 80 can be sufficiently suppressed. In this way, the pallet 1 and coil securing method according to this embodiment are advantageous in that they can reduce the labor required for loading by the carrier.

[0064] In the conventional configuration, the sling 99 is passed through the central hole 81, similar to the band 70 of this embodiment, and extends from the central hole 81 to the loading platform 90 at an inclination angle similar to the band inclination angle θ of this embodiment. According to this embodiment, when the pallet 1 is loaded onto the loading platform 90, the lower ends of the pillars 7 contact the loading platform 90, and the pair of overhanging portions 12 are raised above the loading platform 90. This makes it possible to load the pallet 1 onto the loading platform 90 without requiring the space S between the locking portions 17 of the pair of overhanging portions 12 and the locking position of the conventional sling 99. As such, the pallet 1 and coil fixing method according to this embodiment are also beneficial in that they can increase the number of pallets that can be loaded onto the loading platform 90, in other words, they improve transportation efficiency.

[0065] As shown in FIG. 4 , the tension of the band 70 causes the protruding portion 12 to rotate about the axis in the second direction Y, with the tip end in the first direction X being lifted upward. The displacement of the protruding portion 12 is restricted by at least one of the upper surface and the lower base end of the extension member 13 being caught on the frame 3 or the storage section 15. In this embodiment, the protruding portion 12 is robustly constructed by the pair of extension members 13 and the connecting member 14. Therefore, even if the tension of the band 70 is increased, the protruding portion 12 is unlikely to deform. A sufficient restraining force can be applied to the coil 80 while suppressing deformation of the protruding portion 12.

[0066] The connecting member 14 is also provided with a locking portion 17 for locking the band 70. Therefore, the locking portion 17 is located away from the openings at one end and the other end of the central hole 81 in the first direction X, minimizing the band inclination angle θ. This improves the axial restraining force of the coil 80 relative to the pallet 1.

[0067] (Second embodiment) Next, with reference to FIGS. 6A to 6C, a pallet 1 for coils 80 and a method for fixing coils 80 according to a second embodiment will be described, focusing on differences from the first embodiment.

[0068] In the pallet 1 according to this embodiment, three notches 12a are provided on the upper surface of each protruding portion 12. Each notch 12a is V-shaped in side view and widens toward the upper surface. The three notches 12a are spaced apart in the first direction X on the upper surface side of the extension member 13. The first direction X corresponds to the extension direction of the extension member 13, the extension / contraction direction of the protruding portion 12, the longitudinal direction of the base 8, and the axial direction of the coil 80 placed on the base 8.

[0069] According to the coil fixing method of this embodiment, the amount of protrusion of the protruding portion 12 from the frame 3 can be adjusted in stages when preparing the pallet 1. In this regard, as in the first embodiment, when preparing the pallet 1, the user of the pallet 1 pulls the protruding portion 12 toward themselves to remove the protruding portion 12 from the storage section 15 as necessary. As the user continues to pull the protruding portion toward themselves, the multiple notches 12a are sequentially exposed. The user stops pulling the protruding portion 12 at a position where one of the notches 12a is partially hidden by the second frame 5 in a plan view but is partially exposed from the second frame 5 in the first direction X. This allows one of the three notches 12a to be engaged with the frame 3.

[0070] When the band 70 is engaged with the overhanging portion 12, the tension of the band 70 causes the overhanging portion 12 to rotate and displace. At this time, the notch 12a is engaged with the second frame 5. Even if an upward load acts on the overhanging portion due to the tension of the band 70, the load is received by the frame body 3. The tension of the band 70, and therefore the restraining force, can be increased while suppressing deformation or damage to the overhanging portion 12.

[0071] Changing the amount of overhang of the overhanging portion 12 changes the band inclination angle θ. The ease with which the coil 80 vibrates in the axial direction varies depending on the width of the coil 80. When a wide coil 80 is placed, vibration may be sufficiently suppressed without particularly reducing the band inclination angle θ. In such cases, by reducing the amount of overhang, the loading area on the loading platform 90 can be reduced while still achieving a sufficient vibration suppression effect.

[0072] (Third embodiment) Next, with reference to FIG. 7, a pallet 1 for a coil 80 and a method for fixing the coil 80 according to a third embodiment will be described, focusing on the differences from the first and second embodiments.

[0073] In the pallet 1 according to this embodiment, two main bodies 2 are arranged adjacent to each other in the first direction X. The protruding portion 12 on one side protrudes in one direction in the first direction X from one of the two main bodies 2 that is located at the end on one side in the first direction X. The protruding portion 12 on the other side protrudes in the other direction in the first direction X from one of the two main bodies 2 that is located at the end on the other side in the first direction X.

[0074] A plurality of coils are placed on two pedestals provided on the two main bodies 2. The band 70 is passed through the central holes of the plurality of coils in sequence. One side of the band 70 is engaged with the protruding portion 12 on one side, and the other side of the band 70 is engaged with the protruding portion 12 on the other side.

[0075] According to this embodiment, multiple coils 80 can be fixed to the pallet 1 more compactly than when a pair of protruding portions 12 is provided on each frame body 3. Note that the connecting member 18 may be stored in the two storage portions 15 provided on each of the adjacent frame bodies 3 so as to straddle the two storage portions 15. This allows the adjacent frame bodies 3 to be connected to each other.

[0076] (Variation) Although the embodiments have been described above, the above configurations can be modified as appropriate within the scope of the present invention.

[0077] For example, the pair of protruding portions 12 may be fixed to the frame 3 so as not to be displaceable, and the pallet 1 does not necessarily have to have a storage function.

[0078] Regarding the second embodiment, there is no particular limitation on the number of notches 12a provided in the protruding portion 12. The number of notches 12a may be one, or may be two or more than four. Regarding the third embodiment, there is no particular limitation on the number of main bodies 2 (frame bodies 3) arranged adjacent to each other in the first direction X, as long as they are plural.

[0079] The present disclosure may include the following aspects. (Aspect 1) A coil pallet on which a coil is fixed, A frame body, a base provided on an upper surface side of the frame body and supporting an outer peripheral surface of the coil; a pair of protruding portions that protrude from the frame body to both sides in the longitudinal direction of the base and that respectively engage one side and the other side of a band that has passed through a center hole of the coil that is placed on the base in an upright position with the axial direction of the coil facing the longitudinal direction; A coil pallet comprising: (Aspect 2) The frame further includes a storage section provided on a lower surface side thereof for storing the pair of protruding sections in a protruding manner. The coil pallet according to embodiment 1. (Aspect 3) One or more notches that are engaged with the frame body are provided on the upper surface of the protruding portion. 3. The coil pallet according to claim 1 or 2. (Aspect 4) The protruding portion has a pair of extension members extending in the longitudinal direction and a connecting member connecting tip ends of the pair of extension members to each other. A coil pallet according to any one of aspects 1 to 3. (Aspect 5) The connecting member is provided with a locking portion for locking the band. A coil pallet according to embodiment 4. (Aspect 6) 1. A method for securing a coil to a pallet, comprising: a pallet including a frame body, a base provided on an upper surface of the frame body to support an outer peripheral surface of the coil, and a pair of protruding portions protruding from the frame body on both sides of the base in a longitudinal direction; The coil is placed on the base in an upright position with the axial direction of the coil directed to the longitudinal direction; Passing a band through the center hole of the coil; one side and the other side of the band are engaged with the pair of overhanging portions, respectively; The coil fixing method comprises: (Aspect 7) In placing the coils, the plurality of coils are placed on the base in a state where they are spaced apart in the longitudinal direction, In passing the band, the band is passed through the central holes of the plurality of coils in sequence. A coil fixing method according to aspect 6. (Aspect 8) The pallet further includes a storage section provided on the lower surface side of the frame body to store the pair of protruding portions in a protruding manner, and one or more notches provided on the upper surface side of the protruding portions, In preparing the pallet, the pair of protruding portions are extended from the storage portion, and any one of the one or more notches is engaged with the frame body. A coil fixing method according to aspect 6 or 7. (Aspect 9) In preparing the pallet, a plurality of the frame bodies are arranged in the longitudinal direction, one of the pair of protruding portions protrudes to one side from one of the plurality of frame bodies arranged at an end on one side in the longitudinal direction, and the other of the pair of protruding portions protrudes to the other side from one of the plurality of frame bodies arranged at an end on the other side in the longitudinal direction, In the coil placement, the plurality of coils are placed on the plurality of pedestals, In the passing of the band, the band is passed sequentially through the central holes of the plurality of coils placed on the plurality of pedestals. A coil fixing method according to any one of aspects 6 to 8. [Explanation of symbols]

[0080] 1 palette 2 Main unit 3 Frame 4 First Frame 5. Second Frame 6 Intermediate Frame 7 Pillars 8. Pedestal 9 Beam 10 Support 11 Rubber sheet 12 Overhang 12a notch 13 Extension member 14 Connecting member 15 Storage area 16 Channel member 17 Locking part 18 Connecting member 70 bands 71 Horizontal extension 72 Inclined extension 75 Cushioning material 80 coils 81 Center hole 90 Cargo bed 91 Pallet positioning device 99 Sling θ band tilt angle

Claims

1. A coil pallet on which a coil is fixed, A frame body, a base provided on an upper surface side of the frame body and supporting an outer peripheral surface of the coil; a pair of protruding portions that protrude from the frame body to both sides in the longitudinal direction of the base and that respectively engage one side and the other side of a band that has passed through a center hole of the coil that is placed on the base in an upright position with the axial direction of the coil facing the longitudinal direction; A coil pallet comprising:

2. The frame further includes a storage section provided on a lower surface side thereof for storing the pair of protruding sections in a protruding manner. The coil pallet according to claim 1.

3. One or more notches that are engaged with the frame body are provided on the upper surface side of the protruding portion. The coil pallet according to claim 2.

4. The protruding portion has a pair of extension members extending in the longitudinal direction and a connecting member connecting tip ends of the pair of extension members to each other. The coil pallet according to any one of claims 1 to 3.

5. The connecting member is provided with a locking portion for locking the band.

5. The coil pallet according to claim 4.

6. 1. A method for securing a coil to a pallet, comprising: a pallet including a frame body, a base provided on an upper surface of the frame body to support an outer peripheral surface of the coil, and a pair of protruding portions protruding from the frame body on both sides of the base in a longitudinal direction; The coil is placed on the base in an upright position with the axial direction of the coil directed to the longitudinal direction; Passing a band through the center hole of the coil; one side and the other side of the band are engaged with the pair of overhanging portions, respectively; The coil fixing method comprises:

7. In placing the coils, the plurality of coils are placed on the base in a state where they are spaced apart in the longitudinal direction, In passing the band, the band is passed through the central holes of the plurality of coils in sequence. The coil fixing method according to claim 6.

8. The pallet further includes a storage section provided on the lower surface side of the frame body to store the pair of protruding portions in a protruding manner, and one or more notches provided on the upper surface side of the protruding portions, In preparing the pallet, the pair of protruding portions are extended from the storage portion, and any one of the one or more notches is engaged with the frame body. The coil fixing method according to claim 6 or 7.

9. In preparing the pallet, a plurality of the frame bodies are arranged in the longitudinal direction, one of the pair of protruding portions protrudes to one side from one of the plurality of frame bodies arranged at an end on one side in the longitudinal direction, and the other of the pair of protruding portions protrudes to the other side from one of the plurality of frame bodies arranged at an end on the other side in the longitudinal direction, In the coil placement, the plurality of coils are placed on the plurality of pedestals, In the passing of the band, the band is passed sequentially through the central holes of the plurality of coils placed on the plurality of pedestals. The coil fixing method according to claim 6 or 7.

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