JP2016204005A - Metal coil lashing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lashing method which achieves resource saving of a metal coil lashing tool, and raises safety and efficiency of lashing work.SOLUTION: Provided is a metal coil lashing method which, in a coil group 10a constituted of metal coils 1 wound with a metal plate being packaged or unpackaged that are arranged horizontally by a plural number and piled by plural steps, lashes, to each other, at least vertically adjacent two or more metal coils in the coil group by passing a lashing belt 4 capable of binding and separating through piercing holes 3 of the two or more metal coils, to unite the coil group to one body. A nipper which can hold the lashing belt is used at least when the end part of the lashing belt moved from the front of the coil group to the rear of the piercing hole of the metal coil of the lashing target is moved from the rear of the piercing hole to the front of the coil group through the piercing hole.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a method for securing a metal coil loaded on a transportation means such as a ship.

  2. Description of the Related Art Conventionally, when shipping steel sheets rolled in an ironworks, a method of winding the steel sheets in a coil shape and binding them using a metal band has been performed (see, for example, Patent Document 1). Coiled steel sheets and the like that are bound in this way (which are not limited to iron or iron-based materials and are referred to as “metal coils”) are either packed in a metal cover or use a metal cover. It is loaded in transportation means, such as a ship, as it is (for example, refer patent document 2).

  FIG. 9 is a conventionally known method for fixing packed metal coils in a ship, and is an exploded perspective view (9A) showing a packing state of the metal coils, and a perspective view (9B) of the packed metal coils. ) And a front view (9C) of the packed metal coil in a stacked state, respectively. As shown in FIG. 9, each metal coil 100 is tightened with a plurality of metal bands 101 along the circumferential direction, further covered with metal covers 102 and 103, and both end faces of the metal coil 100 from the outside. A plurality of metal bands 112 are packed in a through hole 113 penetrating substantially the center. For this reason, the danger that the steel plate etc. which form the metal coil 110 of the said packing state will melt | dissolve during the transportation by ship is very low. However, with that alone, there is a risk that the packaged metal coil 110 may move due to the influence of rough waves during navigation of the ship, leading to a major accident. For this reason, conventionally, the metal coils 110 packed in the upper and lower stages, more preferably the metal coils 110 adjacent to each other on the uppermost stage, are secured with the metal band 114 to form a large coil group. Yes. Thus, the packed metal coils 110 stacked in multiple stages are integrated and do not move easily in the ship. The same applies to the case where the unwrapped metal coil 100 that is only fixed by the metal band 101 is loaded on the ship. The metal coil 114 is used to connect the upper and lower metal coils 100 to each other, more preferably on the uppermost stage. The metal coils 100 can be safely transported by securing the adjacent metal coils 100 together to form a large coil group.

JP 7-112755 A JP 2001-253545 A

  However, the above-described conventional securing methods have the following problems. When the packed metal coils 110 or the unpackaged metal coils 100 are tied together with the metal band 114, the metal band 114 is discarded every time the metal coils 110, 100 are transported on a ship, saving resources. Contrary to For example, when the metal coils 110, 100 are transported overseas, the metal coils 110, 100 are unloaded from the ship, and another metal coil 110, 100 is loaded locally and transported to the home country or a third country. A new metal band 114 is required.

  Regardless of whether or not the securing means is the metal band 114, when two or more metal coils 110 and 100 stacked in a plurality of stages are secured to each other, the securing work involves great labor and danger. . Even if the coil group in which the metal coils 110 and 100 are stacked in multiple stages is only one row, the worker engaged in the lashing work may climb the coil group and perform the lashing work. This is particularly noticeable when the coil groups are arranged in a plurality of rows for shipping. This is because it is difficult to enter the back side of the coil group at the time of lashing work because the interval between the coil groups is narrow. In such a case, the worker climbs onto the metal coils 110 and 100 of the plurality of stages to be secured, turns his hand to the gap between the front row coil group and another coil group on the back side, and then forms a metal band. It is necessary to perform an operation of inserting a securing tool such as 114 into the through hole 113 of the metal coils 110 and 100. Since such work is performed in a high place and in a very narrow space, it easily leads to injury of the worker. Such a problem is a common problem that can occur not only by ship transportation but also by air transportation.

  The present invention has been made in view of the above-described problems, and aims to save resources of a metal coil lashing tool and to further improve the safety and efficiency of lashing work.

  In order to achieve the above object, the present inventor uses a reusable lashing tool without using a metal band that must be disposable, and a plurality of stages of metal coils to be lashed. We thought of a method to tie metal coils together using the lashing tool while on the front side, and achieved resource saving and safe and efficient lashing work. Specifically, it is as follows.

  A metal coil securing method according to an embodiment for achieving the above object is a coil in which a plurality of metal coils wound around a metal plate are horizontally placed in a packed or unpacked state and loaded in a plurality of stages. In a group, at least two or more metal coils adjacent to each other in the vertical direction of the coil group are secured to each other through a lashing belt that can be bound and separated in the through holes of the two or more metal coils, thereby integrating the coil group. The method is to move at least the end of the lashing belt moved from the front of the coil group to the rear of the through hole of the metal coil to be secured from the rear of the through hole to the front of the coil group through the through hole. In addition, a nipper capable of gripping the lashing belt is used.

  In the method of securing a metal coil according to another embodiment, the lashing belt is further passed through one or a plurality of cylindrical protective covers, and the protective cover is applied to the opening peripheral edge of the through hole of the metal coil. May be.

  In the method for securing a metal coil according to another embodiment, the lashing belt may be fastened with a ratchet provided therein.

  In the metal coil securing method according to another embodiment, when the plurality of coil groups are arranged in the front-rear direction, the metal coils positioned at least in the same stage and the uppermost stage in the plurality of coil groups are connected to each other. Further, it may be secured using a lashing belt.

  ADVANTAGE OF THE INVENTION According to this invention, the resource saving of the lashing tool of a metal coil and the safety | security and efficiency of lashing work can be improved more.

FIG. 1 is a perspective view showing a state in which a plurality of coil coils arranged in a package are arranged horizontally and stacked in three stages and arranged in three rows in the front and rear. FIG. 2 is a front view (A) of FIG. 1 and a front view (B) of a state in which metal coils adjacent to each other in the vertical stacking direction and metal coils adjacent to each other in the horizontal direction at the top are secured with a lashing belt. Respectively. FIG. 3 shows in a stepwise manner a method of securing metal coils in a vertically inclined direction with a lashing belt. FIG. 4 shows an overall image (4A) of the nipper used during the lashing operation of FIG. 3 and an open / close state (4B) of the grip portion in the distal direction from the line L. FIG. 5 is a perspective view (5A), a front view (5B) of a coil group in which a plurality of unpacked metal coils are arranged side by side and stacked in two stages, and metal coils adjacent to each other in the vertical stacking direction of the coil group. And the front view (5C) of the state which tied the metal coils adjacent in the horizontal direction in the upper stage with the lashing belt is each shown. FIG. 6 shows a front view of a situation where a protective cover is attached to the lashing belt of FIG. 5 and an enlarged view of the protective cover, respectively. FIG. 7 shows a front view (7A) and a plan view (7B) viewed from above in a state in which a group of coils in which metal coils are packed in three stages are arranged in two rows. FIG. 8 shows stepwise a method of securing metal coils together without using a nipper. FIG. 9 is a conventionally known method for fixing packed metal coils in a ship, and is an exploded perspective view (9A) showing a packing state of the metal coils, and a perspective view (9B) of the packed metal coils. ) And a front view (9C) of the packed metal coil in a stacked state, respectively.

  Next, an embodiment of a metal coil securing method according to the present invention will be described with reference to the drawings. The embodiments described below do not limit the invention according to the claims, and all the elements and combinations described in the embodiments are the means for solving the present invention. It is not always essential.

(1. Definition)
In the present application, the “metal coil” means both of a packing state covering the outside or an unpacking state not covering anything. The metal coil to be packed is rolled at a steel mill or the like and used after being subjected to processing such as cutting at a transportation destination. In principle, the metal coil is used without further rolling process at the transportation destination. The weight of one metal coil of this type is approximately 7 to 15 t. On the other hand, unpacked metal coils are generally transported as semi-finished products, and are used after further rolling at the transport destination and processing such as cutting. The weight of one metal coil of this type is approximately 20 to 35 t. In addition, “metal coil” includes not only a coil made of a plate made of iron or an iron-based material but also a coil made of a plate made of various metals (aluminum, tin, etc.). To be interpreted broadly. Furthermore, a metal coil shall be formed so that a through-hole may be provided in the approximate center of the winding.

  In the present application, the “coil group” refers to a state in which a plurality of metal coils wound with a metal plate are horizontally placed in a packed or unpacked state and stacked in a plurality of stages. Here, “horizontal placement” refers to a state in which the side surfaces of the metal coils face downward and the through holes between adjacent metal coils are arranged in parallel. Further, “stage” means the vertical direction, and “row” is in the same plane as the horizontal direction of the metal coil in the coil group, and the horizontal direction and the direction substantially perpendicular to the horizontal direction, respectively. means.

(2. Embodiment)
FIG. 1 is a perspective view showing a state in which a plurality of coil coils arranged in a package are arranged horizontally and stacked in three stages and arranged in three rows in the front and rear. FIG. 2 is a front view (A) of FIG. 1 and a front view (B) of a state in which metal coils adjacent to each other in the vertical stacking direction and metal coils adjacent to each other in the horizontal direction at the top are secured with a lashing belt. Respectively.

  In the following description, description will be given mainly on the transportation of a metal coil in a ship, but the present invention can also be applied to other transportation means (for example, air transportation by a large airplane). FIG. 1 shows an example in which three rows of coil groups 10a, 10b, and 10c are stacked. A coil group 10a is arranged in the front row, a coil group 10b is arranged in the next row, and a coil 10c is arranged in the last row. The metal coil 1 that constitutes the coil groups 10a, 10b, and 10c is in a packaged state. In this embodiment, the metal coil 1 is prepared by preparing a metal coil 11 in a state in which a rolled steel plate is wound and a plurality of metal bands 12 are wound and bound along the winding direction. The cover 13 is packed with ring-shaped metal covers 14 and 14 disposed on both bottom surfaces thereof. Packing is preferably performed so that the six metal bands 2 are passed through the through holes 3 and bound from the outside of the metal cover 13 and the metal covers 14 and 14. The six metal bands 2 are preferably bound at intervals of substantially the same central angle (about 60 degrees) when viewed from the bottom surface of the metal coil 1. However, the number of metal bands 2 and whether or not they are bundled at intervals of substantially the same central angle are not particularly limited. The metal cover 13 may be a cylinder or a thin plate wound in a cylinder shape.

  In each of the coil groups 10a, 10b, and 10c exemplified in this embodiment, eight metal coils 1 are arranged at the lowermost stage, seven at the second stage, and six at the third stage (uppermost stage). Is. However, it does not matter whether the above number, the number of coil groups 10a, 10b, 10c, and the number of stages are the same. Furthermore, it does not ask | require whether the magnitude | size of the metal coil 1 is also the same. Coil groups 10a, 10b, and 10c shown in FIG. 1 and FIG. 2 (A) show a state in which the metal coils 1 adjacent to each other in the up-and-down loading direction are not yet secured. In this state, there is a high risk that the metal coil 1 will move and drop when the ship shakes.

  Therefore, as shown in FIG. 2 (B), the metal coils 1 adjacent to each other in the vertical stacking direction constituting the coil groups 10a, 10b, and 10c are secured by a lashing belt 4. The metal coil coil groups 10 a, 10 b, and 10 c are in a so-called stacking state in which one metal coil 1 is loaded on two metal coils 1. For this reason, when viewed from the surface direction of FIG. The lashing belt 4 is connected in a ring shape through each through hole 3 of the metal coil 1 in the diagonal direction. In this embodiment, preferably, the metal coils 1 adjacent in the horizontal direction at the uppermost stage are also secured to the through holes 3 in a ring shape through the lashing belt 4. The lashing belt 4 is preferably a long belt knitted with synthetic fibers, which can be connected in a ring shape and removed to form a string. That is, the lashing belt 4 is different from a conventionally used general-purpose metal band in that it can be bound and separated. Although the synthetic fiber which comprises the lashing belt 4 is not specifically limited, It is preferable that it is a fiber excellent in intensity | strength, for example, more preferably formed from a polyester fiber.

  FIG. 3 shows in a stepwise manner a method of securing metal coils in a vertically inclined direction with a lashing belt.

  In the first stage of the work of securing the metal coils 1 to each other with the lashing belt 4, the worker first holds an arbitrary portion of the lashing belt 4 in the length direction with the nipper 20, and the metal coil 1 to be secured. A part of the lashing belt 4 is disposed on the back side of the lower stage (in this example, the lower stage metal coil 1) (see A). Next, another nipper 20 is inserted into the through hole 3 of the metal coil 1 to be secured, the lashing belt 4 on the back side of the metal coil 1 is gripped through the through hole 3, and the metal coil is passed through the through hole 3. Pull out before 1 (see B). Next, using the nipper 20 used previously, one end of the lashing belt 4 that has not yet passed through the through hole 3 is moved to the back side of the metal coil 1 (in this example, the upper metal coil 1). Subsequently, the nipper 20 is inserted into the through hole 3 of the upper metal coil 1, the lashing belt 4 on the back side of the metal coil 1 is gripped through the through hole 3, and is pulled out to the front of the metal coil 1 through the through hole 3. (See C).

  As a result, the lashing belt 4 is in a state in which both ends of the lashing belt 4 are pulled out to the front (also referred to as the front surface) of the coil group 10a through both through holes 3 of the two metal coils 1 to be secured. In order to connect the lashing belt 4 in a ring shape, a ratchet 5 is prepared, and one end of the lashing belt 4 is inserted into the ratchet 5 (see D). Subsequently, the other end of the lashing belt 4 is connected to the ratchet 5, and the lashing belt 4 is tightened while operating the ratchet 5. The ratchet 5 is an instrument that can be tightened in one direction without loosening the lashing belt 4, and is effective for tightening the lashing belt 4. However, the ratchet 5 is not an essential device, and any device may be used as long as the lashing belt 4 can be tightened by other methods. Thus, the work of securing the set of metal coils 1 with the lashing belt 4 is completed. The surplus portions of the ratchet 5 and the lashing belt 4 are preferably arranged in the through hole 3 (see E). By repeating such a series of operations from (A) to (E) to the other metal coils 1, all the securing operations are completed, and the coil group 10 a shown in FIG. it can. The coil group 10b and the coil group 10c can be secured in the same process. In this embodiment, it is preferable to perform the securing operation in the order of the innermost coil group 10c, the coil group 10b in the front row, and the coil group 10a in the front row.

  FIG. 4 shows an overall image (4A) of the nipper used during the lashing operation of FIG. 3 and an open / close state (4B) of the grip portion in the distal direction from the line L.

  The nipper 20 used in the lashing operation shown in FIG. 3 has an operating portion 21 at one end of a long (preferably 1 to 3 m, more preferably 1.8 to 2.3 m) rod 22 and a grip portion at the other end. 23. As shown by a double arrow A in FIG. 4 (4A), the operation unit 21 closes the grip part 23 by gripping it, and opens the grip part 23 by releasing the gripping force. It is a part that can. The grip part 23 has a structure capable of opening and closing the two claw parts 23a. For this reason, through operation of the operation part 21, the claw part 23a can be opened and closed, and the lashing belt 4 can be grasped or released.

  The structure of the nipper 20 is not limited to the structure shown in FIG. 4. The nipper 20 can be inserted into the through hole 3 of the metal coil 1 to grip the lashing belt 4 and pull it out from the back side of the metal coil 1 to the front side. If it has a structure, it will not be limited. For example, the claw part 23a of the grip part 23 is not limited to two, and may be three or more. Instead of the claw portion 23a, a hook-and-loop fastener that can be joined to a part of the lashing belt 4 may be attached.

  FIG. 5 is a perspective view (5A), a front view (5B) of a coil group in which a plurality of unpacked metal coils are arranged side by side and stacked in two stages, and metal coils adjacent to each other in the vertical stacking direction of the coil group. And the front view (5C) of the state which tied the metal coils adjacent in the horizontal direction in the upper stage with the lashing belt is each shown. FIG. 6 shows a front view of a situation where a protective cover is attached to the lashing belt of FIG. 5 and an enlarged view of the protective cover, respectively.

  Unlike the coil group 10a previously shown in FIG. 1, the coil group 10a shown in FIG. 5 is not packed in the metal covers 13 and 14 and is simply fixed in the winding direction by the metal band 12. The metal coils 11 are stacked in two stages. Even the unpacked metal coil 11 can be secured by the lashing belt 4 in the same manner as the packed metal coil 1. However, since the outer peripheral edge and the inner peripheral edge of the unwrapped metal coil 11 are exposed, the lashing belt 4 is tied by bringing it into contact with the opening peripheral edge 35 in the through hole 35 of the metal coil 11. There is a possibility of cutting. In order to prevent such a situation, the lashing belt 4 is passed through the through holes 3 of the two metal coils 11 to be secured and both ends thereof are pulled out to the front of the coil group 10a, and then each end of the lashing belt 4 is connected to the cylinder. The protective cover 30 is preferably passed through.

  As shown in FIG. 6, the protective cover 30 includes an internal through passage 31 and is made of a synthetic fiber having a strength equal to or higher than that of the lashing belt 4. Although the synthetic fiber which comprises the protective cover 30 is not specifically limited, It is preferable that it is a fiber excellent in intensity | strength, and it is preferable that it is especially comprised from a fiber higher intensity | strength than the lashing belt 4. FIG. Examples of such fibers include aramid fibers (polyamide fibers whose molecular skeleton is a benzene ring). When the protective cover 30 is applied to the opening peripheral edge 35 of the through hole 3 of the metal coil 11 and the lashing belt 4 is fastened with the ratchet 5, the protective cover 30 contacts the sharp opening peripheral edge 35, and the lashing belt 4 does not contact the opening edge periphery 35 directly. For this reason, the danger that the lashing belt 4 will be cut | disconnected by the opening peripheral part 35 can be reduced.

  The protective cover 30 can be suitably used for the coil group 10a loaded with the unpacked metal coil 11, but is used for the coil group 10a loaded with the packed metal coil 1 as shown in FIG. Also good. This is because even if the metal coil 11 is packed with the metal covers 13 and 14, the lashing belt 4 may be cut at the opening peripheral edge 35 of the metal coil 1. In order to extend the life cycle of the lashing belt 4, it is preferable to use the protective cover 30.

  FIG. 7 shows a front view (7A) and a plan view (7B) viewed from above in a state in which a group of coils in which metal coils are packed in three stages are arranged in two rows.

  In FIG. 7, the metal coil at the lowest stage of each of the coil groups 10a and 10b is “metal coil 1a”, the metal coil at each second stage is “metal coil 1b”, and the metal at each third stage (uppermost stage). The coil is distinguished from the “metal coil 1 c”, and is illustrated so that the color becomes lighter in order from the bottom to the top. When these metal coils 1a, 1b, and 1c are collectively referred to, they are referred to as “metal coil 1”.

  As shown in FIG. 7, in the case where a plurality of coil groups 10a, 10b are arranged in the front-rear direction, the metal coils 1c, 1c located at the same and uppermost stages in the plurality of coil groups 10a, 10b, The lashing belt 4 is preferably used for tying. It is preferable that the metal coils 1c and 1c positioned at the uppermost stage are selected as a single lump in which a plurality of adjacent coils in the coil groups 10a and 10b are combined. In addition, when the lashing belt 4 is secured in a ring shape across the coil groups 10a and 10b, an arbitrary metal coil 1c at the substantially middle position of the uppermost stage of the coil groups 10a and 10b is set as a common securing object. preferable. In the example of FIG. 7, the lashing belt 4 secures the third metal coil 1 c from the uppermost left end of the coil group 10 a to the third metal coil 1 c from the uppermost left end of the coil group 10 b on the back side thereof. A total of six metal coils 1c are combined into one lump. Specifically, the through holes 3 and 3 of the third metal coil 1c third from the left end and the left end of the uppermost stage of the coil group 10a, and the second two metal coils 1c third from the left end and the left end of the uppermost stage of the coil group 10b. The through holes 3 and 3 are secured in a ring shape through the lashing belt 4. Further, the metal coil 1c from the uppermost right end of the coil group 10a to the fourth metal coil 1c and the metal coil 1c from the uppermost right end of the coil group 10b on the back side thereof are secured by the lashing belt 4, A total of eight metal coils 1c are made into one lump. Specifically, the through holes 3 and 3 of the second metal coil 1c fourth from the right end and the right end of the uppermost stage of the coil group 10a, and the second two metal coils 1c fourth from the right end and the right end of the uppermost stage of the coil group 10b. The through holes 3 and 3 are secured in a ring shape through the lashing belt 4. In this case, the third metal coil 1c from the uppermost left end of each coil group 10a, 10b is an overlapping metal coil 1c belonging to two blocks. For this reason, the twelve metal coils 1c in the uppermost stage in the two coil groups 10a and 10b form one lump. Such lashing over a plurality of rows is not an essential method for the present invention, but is effective in preventing the uppermost metal coil 1c from moving toward the front of the coil group 10a. Thereby, although the coil group 10a and the coil group 10b are partially secured, they can be integrated. Such additional lashing can be applied even to the coil groups 10a and 10b on which the unpacked metal coils 11 are loaded.

  FIG. 8 shows stepwise a method of securing metal coils together without using a nipper.

  In the first stage of the work of securing the metal coils 1 to each other with the lashing belt 4, the worker first places one end of the highly elastic resin wire 40 on the upper stage of the two metal coils 1 to be secured. From the front side of the metal coil 1 through the through hole 3, the metal coil 1 is sent from the back side to the front side of the through hole 3 of the lower metal coil 1 (see A). However, the wire 40 may be sent from the lower metal coil 1 to the upper metal coil 1 upside down. Such an operation is performed manually without using the nipper 20. Since the wire 40 is thin and highly elastic, the position of one end is easier to operate than the lashing belt 4 and the operation of passing the wire 40 from one through hole 3 to another through hole 3 is performed manually. However, the nipper 20 can also be used during some operations. A ring 41 is provided at the one end of the wire 40. Next, when one end of the lashing belt 4 is passed through the ring 41 of the wire 40 (see B) and the wire 40 is pulled in the direction opposite to the ring 41, the back side of the through hole 3 of the lower metal coil 1 is removed. The lashing belt 4 can be passed through the through hole 3 of the upper metal coil 1 (see D). In this embodiment, the size of the wheel 41 cannot be adjusted, but may be adjustable. Further, instead of the wheel 41, means for sandwiching the lashing belt 4 such as a clip may be attached to the wire 40.

  Next, in order to connect the lashing belt 4 in a ring shape, a ratchet 5 is prepared, and one end of the lashing belt 4 is inserted into the ratchet 5 (see E). Subsequently, the other end of the lashing belt 4 is connected to the ratchet 5, and the lashing belt 4 is tightened while operating the ratchet 5. Thus, the work of securing the set of metal coils 1 with the lashing belt 4 is completed. The surplus portions of the ratchet 5 and the lashing belt 4 are preferably disposed in the through hole 3 (see F). By repeating such a series of operations (A) to (F) for the other metal coils 1, all securing operations are completed. The coil group 10b and the coil group 10c can be secured in the same process.

(3. Actions and effects peculiar to the embodiment)
As described above, in the above-described embodiment, the coil groups 10a, 10b, and 10c in which a plurality of metal coils 1 and 11 wound with a metal plate are horizontally placed in a packed or unpacked state and stacked in a plurality of stages. , A lashing belt 4 capable of binding and separating at least two metal coils 1, 11 adjacent to each other in the vertical direction of the coil groups 10 a, 10 b, 10 c into the through holes 3 of the two or more metal coils 1, 11. The coil groups 10a, 10b, and 10c are integrated by lashing through, and at least from the front of the coil groups 10a, 10b, and 10c to the rear of the through holes 3 of the metal coils 1 and 11 to be tied. When the end of the moved lashing belt 4 is moved from the rear of the through hole 3 to the front of the coil groups 10a, 10b, and 10c through the through hole 3, Guberuto 4 used graspable nippers 20. As a result, the worker who performs the lashing work can safely and efficiently perform the work without moving from the front of the coil group 10a and the like to the back and without having to climb up the coil group 10a and the like. it can. In addition, unlike the conventional metal belt, the lashing belt 4 is not cut and discarded and can be used any number of times, which contributes to resource saving.

  In another embodiment, the lashing belt 4 is passed through one or a plurality of cylindrical protective covers 30, and the protective cover 30 is applied to the opening peripheral edge 35 of the through hole 3 of the metal coils 1 and 11. can do. Thereby, the situation where the lashing belt 4 is unintentionally cut can be reduced. In particular, when the unwrapped metal coil 11 is secured, the effect of using the protective cover 30 is great.

  In another embodiment, the lashing belt 4 can be fastened by a ratchet 5 provided therein. By using the ratchet 5, the lashing belt 4 can be adjusted only in the tightening direction without being moved in the loosening direction. Therefore, the securing operation between the metal coils 1 and 11 can be easily performed.

  Further, when the plurality of coil groups 10a, 10b, and 10c are arranged in the front-rear direction, the metal coils 1c that are positioned at the same and uppermost stages in the plurality of coil groups (for example, 10a and 10b) are further The lashing belt 4 can be used for lashing. As a result, adjacent rows can be integrated via the metal coil 1c, and the risk of the metal coil 1c falling or moving due to shaking or the like during transportation by a ship or the like can be reduced.

(4. Other embodiments)
In the above-described embodiment, at least two metal coils 1 and 11 adjacent to each other in the vertical direction, such as the coil group 10a, are secured to each other. Not only 1, 11, but also two or more metal coils 1, 11 that are adjacent to each other in the horizontal direction or not adjacent to each other in the vertical direction may be secured.

  In the above-described embodiment, at least the end portion of the lashing belt 4 moved from the front side of the coil group 10a or the like to the rear side of the through hole 3 of the metal coil 1 or 11 to be secured is from the rear side of the through hole 3. The nipper 20 is used when moving to the front of the coil group 10a and the like through the through hole 3. However, since it is “at least”, the nipper 20 can be used during other types of work. For example, when the lashing belt 4 is sent from the front side to the back side of the through-hole 3, the lashing belt 4 is secured at a position where the worker cannot reach manually, such as when the lashing belt 4 is simply lifted above the metal coils 1 and 11. The nipper 20 can be used effectively in a part of the work.

  The protective cover 30 is applied to the opening peripheral edge 35 of the through-hole 3 of the metal coils 1 and 11, but can be applied not only to the opening peripheral edge 35 of the through-hole 3 but also to other parts. Further, the protective cover 30 may not be applied to all the opening peripheral portions 35, but may be applied only to a part of the opening peripheral portions 35. Furthermore, the metal coils 1a and 1b which are not the same or the uppermost stage in the plurality of coil groups 10a other than tying the metal coils 1c located at the same and uppermost stage of the plurality of coil groups 10a and the like. You may tie them together. Further, even when the same and uppermost metal coils 1c and 1c are tied together, unlike the embodiment shown in FIG. 7, in the coil groups 10a and 10b, two adjacent metal coils 1c, 1c may be selected and the four metal coils 1c may be tied together with the lashing belt 4. In that case, it is preferable that a common metal coil 1c belonging to two lumps be present in the metal coil 1c to be secured. This is because even if the four metal coils 1c are tied together to form a set, all of the uppermost metal coils 1c in the coil groups 10a and 10b become one lump.

  The method for securing a metal coil according to the present invention can be widely used for restricting the movement of the metal coil during transportation of the metal coil.

DESCRIPTION OF SYMBOLS 1 Metal coil 1a, 1b, 1c Metal coil 3 Through-hole 4 Lashing belt 5 Ratchet 10a, 10b, 10c Coil group 11 Metal coil 20 Nipper 30 Protective cover 35 Opening peripheral part

Claims (4)

In a coil group in which a plurality of metal coils wound with a metal plate are horizontally placed in a packed or unpacked state and stacked in a plurality of stages, at least two metal coils adjacent in the vertical direction of the coil group are , A method of integrating the coil group by tying the through holes of the two or more metal coils through a lashing belt that can be bound and separated;
At least the end portion of the lashing belt moved from the front of the coil group to the rear of the through hole of the metal coil to be secured is moved from the rear of the through hole to the front of the coil group through the through hole. In this case, a metal coil securing method using a nipper capable of gripping the lashing belt. Pass the lashing belt through one or more cylindrical protective covers;
The method for securing a metal coil according to claim 1, wherein the protective cover is applied to an opening peripheral edge of the through hole of the metal coil.   The metal coil securing method according to claim 1, wherein the lashing belt is fastened with a ratchet provided therein.   In the case where a plurality of the coil groups are arranged in the front-rear direction, the metal coils located at the same level and the uppermost level in the plurality of coil groups are further secured using the lashing belt. The method of securing a metal coil according to any one of claims 1 to 3.