JPH0520304B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to packaging materials for various coiled wire rods and ring-shaped objects made by winding metal wire rods into coils, and to assemblies using this packaging material. This relates to packaging.

[Prior art and its problems] Conventionally, for example, when shipping and transporting wire rods, the wire rod is wound around a coil material and tightened at several points in the circumferential direction, and then the entire wire is wrapped with wrapping paper tape, etc. The material is rolled and wrapped tightly, and this is further wrapped with a synthetic resin film or the like. Therefore, packaging work is extremely troublesome and requires manpower, and there is also the risk that the packaging material may be damaged during transportation or other handling work, or that the internal wire rods may be damaged due to external pressure caused by collisions with other objects. Ta.

In addition, when transporting packages of coiled wire rods and other cargo handling operations, if individual packages are left as they are, the loading condition on pallets etc. will become unstable, and there will also be problems with workability, so these packages are usually used. The required number of wire rods are tied together or packed in boxes and stacked on pallets for collective packaging, but in this case there is a risk that the stacking load will act directly on the products inside each package, causing deformation of the wire products. Moreover, once the packages are packaged as described above, it is not easy to take out the individual packages as needed.

Therefore, the present invention uses a single type of packaging material integrally formed from a plate made of a rigid material such as synthetic resin, so that the coiled wire rod, etc. can be stored and packaged as is, and the packaging process and packaging state can be easily controlled. This was done in order to facilitate and simplify the handling work of the above-mentioned packaging materials, and in particular, it enables pack-type packaging by combining two of the above-mentioned packaging materials, and has a positioning function in the combination state and stacked state, This invention was invented to provide a packaging material that is extremely safe and ensures the protection of coiled wires, etc. to be packaged, and to facilitate collective packaging of coiled wires, etc. using this packaging material.

[Means for Solving the Problems] The packaging material of the present invention is a packaging material integrally formed of a rigid material and having an annular storage recess for accommodating a coiled wire etc., and which solves the above problems. In order to solve this problem, it has the following configuration.

At least one of the inner part and the outer part of the annular storage recess is provided with grooves extending from the side of the storage recess at equal angular intervals of three or more equal intervals in the circumferential direction with respect to the center point O of the storage recess when viewed in plan. A stepped convex portion is provided with a plurality of stages including a protruding top surface that protrudes upward and a step surface that is recessed from the top surface, and a protruding bottom surface that protrudes downward from the bottom surface of the storage recess between each of the stepped convex portions. A stepped leg section is provided with a plurality of steps including a bottom step surface slightly above this, and each step-like convex section and each step-like leg section have a stepped shape corresponding to the plurality of steps when turned over. , and each has a rotationally symmetric shape with respect to the center point O of the equal dividing angle.

In the above, it is particularly preferable that the plurality of steps in the step-like convex portion and the plurality of steps in the step-like leg portion are formed in corresponding shapes with corresponding steps in the same circumferential direction.

The second aspect of the present invention relates to a collective packaging body for coiled wire rods, etc., using the packaging material having the above-mentioned structure, in which two of the above-mentioned packaging materials are combined into a set, and the front side of both packaging materials is A single package is constructed by making them face each other and accommodating a coiled wire etc. in the storage recesses of both, and these packages are stacked in multiple tiers. The plurality of tiers are fitted into each other so that the upper and lower protruding surfaces face each other and the upper and lower surfaces of the upper and lower packaging bodies face each other, and the upper and lower packaging bodies are connected to the stepped legs of the upper packaging material of the lower packaging body. and the stepped legs of the lower packaging material of the upper packaging body face each other, and the plurality of tiers are fitted against each other such that the protruding bottom surface faces the other bottom tier surface. It is something to do.

[Function] According to the packaging material of the present invention configured as described above, when packaging a coiled wire or the like, for example, two packaging materials are used as a set, and the coil is placed in the storage recess of one of the packaging materials. While storing the coiled wire rod, etc. as it is, the other packaging material is turned over and placed over the packaging material, and with the coiled wire rod, etc. accommodated in the storage recesses of both, the stepped convex portions of both packaging materials are placed relative to each other. When the two steps are aligned in the opposite direction, the plurality of steps thereof are fitted into the step-like convex portions of both of them in an alternating manner such that the protruding upper surface is in contact with the step surface of the other step.

Therefore, in this packaging state, the contact parts between the stepped convex parts are at three or more places at equal angles in the circumferential direction, so that both packaging materials do not wobble, and the staggered contact parts The side surface portions forming the boundaries of the stepped surfaces of the stepped convex portion abut each other to perform a positioning action, and furthermore, the abutting side surface portions differ in direction by equal angles at each location where the stepped convex portion is located. As a result, there will be no deviation in the vertical, horizontal, or other directions, and the contact state of both packaging materials will be stable, and the coiled wire, etc. in the storage recess will be securely held by these packaging materials. Can be retained.

When stacking packages made of the above-mentioned pairs of packaging materials, the bottom surfaces of both packaging materials will come into contact with each other, but in this case, if the stepped legs of both packaging materials are made to face each other, , the plurality of stages are fitted to each other in an alternating manner so that the protruding bottom surfaces protruding from the bottom surfaces of the storage recesses are in contact with the other bottom step surface. Therefore, each stepped leg can be loaded at three or more locations without wobbling, and the side surfaces forming the boundaries of each step of each stepped leg come into contact with each other to perform a positioning function. Since the abutting side portions are oriented in different directions by the equal angle at each location of each stepped leg, there is no displacement in either the vertical or horizontal directions, and the stacking can be carried out with good stability.

As mentioned above, in the collective packaging state in which packages such as coiled wire rods made of two packaging materials are stacked in multiple tiers, as described above, both packaging materials in each packaging body are The two packaging materials are fitted in a staggered manner to ensure that they are held in a predetermined contact state without any deviation, and the multiple tiers of the tiered legs of both packaging materials that are bottom-to-bottom are fitted in a staggered manner. They fit tightly and are securely held in a predetermined mounting state without slippage. Therefore, even though the packages are stacked in multiple stages, the packages made of pairs of packaging materials can be maintained in a stable stacked state.

Moreover, in this stacked state, the stacking load can be supported by the contacting portions of the stepped convex portions and the stepped legs, and the coiled wire rods etc. accommodated in the storage recesses of each packaging material can be supported. Since pressure such as stacked loads does not act on the material, it can be well protected. In addition, individual packages can be taken out one after another from the top, depending on the need for the use of coiled wire or the like.

Furthermore, in the above packaging material, if the plurality of stepped convex portions and the plurality of stepped leg portions are formed with corresponding steps in the same circumferential direction, the upper layer packaging material is used as the lower layer packaging material. If the material is placed by changing its direction so that the stepped legs correspond to the stepped convexities on the lower layer, the protruding bottom surfaces of the stepped legs will correspond to the stepped surfaces of the stepped convexities, and the bottom step The plurality of stages of both are placed and fitted to each other so that the surfaces correspond to the protruding upper surface, and the side parts forming the boundaries of each stage of the stepped convex part and the stepped leg part are in contact with each other for positioning. Because it will have an effect,
It can be stacked and used stably in a tray format.

[Example] Next, an example of the present invention will be described based on the drawings.
A indicates the packaging material according to the present invention, which is made of a relatively hard synthetic resin such as polypropylene resin and polyvinyl chloride resin, or a rigid material such as metal, and can be formed by press molding from a plate, vacuum molding, or injection. It is integrally formed by molding.

The packaging material A has an annular storage recess 1 in which a coiled wire B etc. to be packaged can be stored, and 2, 3
indicates its medial and lateral upper edges. The annular diameter, width, depth, etc. of this storage recess 1 are set according to the winding diameter and cross-sectional diameter of the coiled wire B to be packaged. For example, the depth is approximately 1/2 of the cross-sectional diameter,
The width of the opening is approximately 1/2 of the cross-sectional diameter plus approximately 10 mm.

The annular storage recess 1, which is the center point of the packaging material A, is provided in the inner and outer parts of the annular storage recess 2.
A plurality of step-like protrusions 10 are provided that protrude upward in a plurality of steps at angles dividing the center point O into four in the circumferential direction, that is, at intervals of 90°, and each step-like protrusion 1
The remaining portion between 0 and 10 is formed as stepped leg portions 20 consisting of a plurality of steps at intervals of 90°, which is the same equally divided angle as described above. i.e. 45° circumferentially
Each section has a stepped convex portion 10 and a stepped leg portion 20.

Each of the stepped convex portions 10 has a protruding upper surface 11 that protrudes upward from the side upper edges 2 and 3 of the storage recess 1, and a corresponding step surface 1 that is recessed from the upper edges 2 and 3.
It is formed in two stages. The protruding upper surface 1
1 and the stepped surface 12 are symmetrical with respect to a center line passing through the center point O at the circumferential center of the stepped convex portion 10 when viewed in plan so that they form a corresponding stepped shape when turned over, and It is formed rotationally symmetrically with respect to the center point O at the equal dividing angle of 90°.

Further, the stepped leg portion 20 is formed in two stages: a protruding bottom surface 21 that protrudes downward from the bottom surface of the storage recess 1, and a bottom stepped surface 12 that is slightly above the protruding bottom surface 21. The protruding bottom surface 21 and the bottom stepped surface 22 have a center line passing through the center point O at the circumferential center of the stepped leg portion 20 when viewed in plan so that the protruding bottom surface 21 and the bottom stepped surface 22 form a corresponding stepped shape when turned over as described above. Furthermore, the entire structure is rotationally symmetrical with respect to the center point O at the equal dividing angle of 90°.

In the above, each stage of the protruding upper surface 11 and the stepped surface 12 in the stepped convex part 10 and each stage of the protruding bottom surface 21 and the bottom stepped surface 22 in the stepped leg part 20 are as follows:
In consideration of stacking in a tray format, they are formed into substantially corresponding shapes with corresponding steps in the same circumferential direction. Further, each side surface of the stepped convex portion 10, stepped leg portion 20, and storage recessed portion 1 is formed into a tapered shape, so that they can be stacked in a nested manner to have a low volume when not in use. In particular, the protruding upper surface 11 and the protruding bottom surface 2 of the stepped convex portion 10 and the stepped leg portion 20
1 is formed slightly narrower than the step surface 12 and the bottom step surface 22, respectively, so that alternating contact action can be easily performed.

In the embodiment illustrated above, the stepped convex portion 1
0 and the stepped leg portions 20 are formed to be shifted by 45 degrees between the inner and outer portions of the storage recess 1, and in addition, stepped protrusions are formed on the inner and outer portions of the storage recess 1. 10 and the stepped leg 20 may be shifted by an angle other than the above, or may be arranged at the same angular position. Also, the arrangement direction of each step of the stepped convex portion 10 and the stepped leg portion 20 can be the same on the inside and outside, but it is better to reverse the arrangement direction on the inside and outside as shown in the figure. This is preferable since it is possible to more reliably prevent displacement in the circumferential direction and position when brought into contact with each other.

The stepped convex portion 10 and the stepped leg portion 20 having the above structure are provided on both the inner and outer portions of the storage recess 1 as shown in the figure, and are also provided only on the inner portion as shown in FIG. It can also be implemented by providing it only in the outer part. From the viewpoint of the stability and strength of the packaging state during use or stacking stability, it is desirable to provide them both inside and outside as described above.

The central part of the packaging material A can also be formed into a flat plate with the same plane as the side upper edges 2 and 3 of the storage recess 1.
In each case, protruding portions 4 having a height corresponding to the protruding upper surface 11 and recessed portions 5 corresponding to the protruding bottom surface 21 are alternately formed. The side surfaces of the protruding part 4 and the recessed part 5 are formed into tapered slopes, and the central part is formed to be continuous at approximately the middle part of the protruding upper surface 11 and the protruding bottom surface 21 as shown in the figure, and the two packaging When materials A and A are used with their front surfaces facing each other, they can be positioned by turning them over at the center line to which the boundary between the projection 4 and the recess 5 belongs and facing each other.

Further, in the above embodiment, the stepped convex part 10 and the stepped leg part 20 are each formed in two stages, but as shown in FIG. The surface 12 and the step surface 13 which is flush with the plane to which the side upper edges 2 and 3 of the storage recess 1 belong, can be formed in three steps or other plural steps. The leg portion 20 also
Similarly to the above, it can be implemented by forming in multiple stages of three or more stages. A step can also be provided in the radial direction of the packaging material. In this case as well, each of the plurality of stages is symmetrical with respect to the center line passing through the center point O at the circumferential center of the stepped convex portion 10 or the stepped leg portion 20 when viewed in plan, as in the case of the two stages described above. , and when the packaging material A is turned over, it has a corresponding stepped shape.

Further, the inner and outer upper edges 2 and 3 of the storage recess 1 are formed on the same surface over the entire circumference, but as shown in FIG.
If it is formed continuously from the side surface, when the two packaging agents A and A are brought into contact with each other,
and step surfaces 12 are fitted alternately to form both packaging materials A,
When the contact boundary portion of A is displaced up and down and the wire rod or the like in the storage recess 1 is in a loose state, it is possible to prevent the wire rod from being caught between the contact boundary portions.

The overall planar shape of the packaging material A may be octagonal or circular, and may also be formed into a quadrangular, hexagonal or other shape.
0 can be arranged at equal angular intervals of three or more equal intervals, such as every 120° or 60°.

When a coiled wire B is packaged using two packaging materials A having the above-mentioned configuration, as shown in FIG. At the same time, the other packaging material A is turned over and placed over the packaging material A so that the storage recesses 1 of both of them correspond to each other, and the coiled wire B is stored between both storage recesses 1, 1. When both packaging materials A, A are brought into contact with their stepped convex portions 10, 10, the plurality of steps are arranged such that the protruding upper surface 11 of both stepped convex portions 10 corresponds to the stepped surface 12 of the other one. Fit alternately.

Therefore, the side surfaces of the boundary portions of the stepped surfaces contact each other and perform a positioning action to restrict displacement in the horizontal direction. Since the two packaging materials are arranged in different directions at equal angles in more than one place, the two packaging materials do not shift vertically or horizontally or in any other direction, and are stably held in a predetermined facing state, so that both packaging materials A, By A, the coiled wire B stored in the storage recess 1 can be reliably protected. In particular, since the coiled wire can be stored and held in the storage recess 1 as described above, it is possible to store the coiled wire in its separate state without wrapping it inside with paper tape or the like as in the conventional case. It is also possible to install the packaging material A, for example, at the end of a manufacturing machine for various types of coiled wires, and directly store and package the individual coiled wires B produced therein.

When packaging the two packaging materials A and A in combination as described above, each stepped surface of the stepped convex portion 10 that becomes the facing surface of both packaging materials A, for example, as shown in FIG. An engaging convex portion 14 and an engaging hole 15 that correspond to each other may be provided on the stepped surface 12, or a joint 16 or a rivet, etc., in which the locking piece 16b is expanded and engaged when the pin 16a is pushed in, as shown in FIG. It is preferable to use .

When stacking the packages P made up of two sets of the above-mentioned packaging materials A, the bottom sides of both the packaging materials A, A will come into contact with each other. It is sufficient that the legs 20, 20 are made to correspond to each other, and the plurality of stages are alternately fitted to each other so that the protruding bottom surface 21 protruding from the bottom surface of the storage recess 1 is in contact with the other bottom step surface 22, and each The side surfaces come into contact with each other at the boundary of the stepped surfaces to achieve a positioning function, and since these abutting side surfaces exist in different directions at equal angles at the contact portion of each stepped leg 20, the vertical and horizontal directions can be adjusted. No deviation occurs in either direction.

Therefore, in collective packaging using the above packaging material A, the two packaging materials A and A are combined into one package as described above.
They are used as a set, and the coiled wire B etc. are stored in the storage recesses 1 and 1 of both to form one package P, and this package P is stacked in multiple stages on a pallet, etc., as shown in Fig. 9. can be collectively packaged.

In this collective packaging state, both packaging materials A, A of each packaging body P have corresponding stepped convex portions 10, 10.
The upper and lower packaging bodies P, P are connected to the stepped legs 20 of the turned-over packaging material A in the lower layer and the lower packaging material in the upper layer. The stepped leg portions 20 of A correspond to each other, and a plurality of stages are alternately fitted to each other, thereby preventing positional deviation. Therefore, even though they are stacked in multiple tiers, the package P made up of two sets of packaging materials A and A
It is possible to maintain a stable stacked state without misaligning each other, and when necessary, such as when using coiled wire material B, each package can be taken out individually wrapped from the upper tier. It is also easy to handle.

In addition, the illustrated packaging material A can be stacked with its surface facing upward, especially since the stepped convex portion 10 and the stepped leg portion 20 are formed with steps corresponding to the same circumferential direction. , if the upper layer packaging material A is placed on the lower layer packaging material A by changing the direction so that the stepped leg portions 20 correspond to the lower layer stepped convex portions 10, the protruding bottom surface 21 of the stepped leg portions 20 corresponds to the step surface 12 of the step-like convex portion 10 of the lower layer, and the bottom step surface 22 corresponds to the protruding upper surface 11, so that the plurality of steps correspond to each other and are placed on each other. In this case as well, the side surfaces forming the boundaries between the stepped protrusions 10 and the stepped legs 20 abut each other, and the abutting side surfaces differ in direction at each stepped leg 20. This means that they can be stacked without shifting their positions vertically or horizontally. Therefore, if the storage recess 1 has a depth that can accommodate the entire coiled wire B as shown in FIG. 12, or if the winding diameter of the coiled wire B is smaller than the depth of the storage recess 1. As described above, it is possible to carry out collective packaging in which the tray-type packaging is stacked as shown in FIG. 13.

Even in this packaging state, it is possible to maintain a highly stable stacked state, and the stacking load can be received at the contact portion between the stepped convex portion 10 and the stepped leg portion 20, so that each packaging material A can be kept in a stacked state with good stability. No load acts on the coiled wire B etc. accommodated in the storage recess 1,
It can be well protected.

In addition, when the packaging material A is not used, if the upper and lower packaging materials A and A are placed in the same direction and the stepped protrusions 10 and the stepped legs 20 are matched with each other,
They can be fitted into each other, so that the packaging materials A can be nested together in a low-volume manner. In particular, since each stepped convex portion 10 and stepped leg portion 20 are rotationally symmetrical with equal angles, even if the direction is changed by the angle, they can be overlapped in the same manner as described above. Therefore, recovery work after use is easy and space can be used effectively.

[Effects of the Invention] As described above, according to the packaging material of the present invention, various coiled wire rods, etc. can be stored in their separate state without the need for tight packaging as in the past. In particular, it is possible to use one type of packaging material in pairs to package it in a pack, which greatly simplifies the packaging process. In addition, when used in combination or stacked, the positioning effect of the stepped protrusions and stepped legs provides good stability in the joint and stacked state of both packaging materials. Moreover, external pressure due to contact with other objects does not act on the coiled wire rod, etc. of the packaged object, and the internal wire rods, etc. can be well protected.

In particular, according to group packaging using the above-mentioned packaging materials, positional displacement does not occur, so there is no need for other means to prevent falling such as a backing member, and stacking work is easy and the stacked state is stable. Coupled with the fact that cargo does not collapse during cargo handling operations using forklifts, etc., and tightening operations such as banding and box covering operations can be simplified,
Facilitates collective packaging and transportation handling of coiled wire rods, etc. In addition, in the collective packaging described above, individual packages can be taken out in order from the top as needed, making it convenient to handle individually packaged items.

[Brief explanation of the drawing]

The figures show embodiments of the present invention, in which Figure 1 is a perspective view of a packaging material according to the present invention, Figure 2 is a plan view of the same, and Figures 3 and 4 are front views - lines and - lines. 5 is a perspective view showing another embodiment, FIGS. 6 and 7 are partial sectional views and a front view from inside the storage recess, and FIG. 8 is a partial sectional view showing still another embodiment. is a perspective view before packaging when two packaging materials are used as a set, FIG. 9 is a schematic front view showing a state of collective packaging by the same packaging bodies, and FIGS. 10 and 11 a and b are the same as above. A partial enlarged cross-sectional view showing another example of the usage state, FIG. 12 is a cross-sectional view when one packaging material is stacked in a tray type,
FIG. 13 is a schematic front view showing a collective packaging state according to the above state. A...Packaging material, 1...Storage recess, 10...Stepped protrusion, 11...Protruding upper surface, 12...Stepped surface, 20...
... Stepped leg portion, 21 ... Protruding bottom surface, 22 ... Bottom step surface, B ... Coiled wire rod, P ... Packaging body.

Claims (1)

[Scope of Claims] 1. A packaging material integrally formed of a rigid material and having an annular storage recess for accommodating a coiled wire, etc., comprising: an inner part and an outer part of the annular storage recess; At least one side has a protruding upper surface that protrudes upward from the side of the storage recess and a step recessed from this, arranged at equal angular intervals of three or more in the circumferential direction with respect to the center point O of the storage recess when viewed in plan. A stepped convex portion consisting of a plurality of steps including a surface is provided, and a plurality of steps including a protruding bottom surface protruding downward from the bottom surface of the storage recess and a bottom step surface slightly above the protruding bottom surface between each stepped convex portion. Each of the stepped convex portions and each of the stepped legs is formed so as to form a corresponding stepped shape when the plurality of steps are turned over, and each of the stepped leg portions is formed such that each of the stepped convex portions and each of the stepped leg portions has a corresponding stepped shape when the plurality of steps are turned over. A packaging material such as a coiled wire material, characterized in that it has a rotationally symmetrical shape with respect to the above-mentioned equal dividing angle. 2. A packaging material such as a coiled wire rod according to claim 1, wherein the plurality of steps in the step-like convex portion and the plurality of steps in the step-like leg portion are formed in a stepped shape that corresponds to each other in the same circumferential direction. . 3. A packaging material such as a coiled wire rod according to claim 1, wherein the stepped convex portion and the stepped leg portion have tapered side surfaces. 4 A packaging material that is integrally formed of a rigid material and has an annular storage recess for accommodating a coiled wire, etc.
The surfaces of both packaging materials are placed in mutual contact with each other, and the coiled wire rods, etc. are accommodated in the storage recesses of both packaging materials to form a single packaging body, and these packaging bodies are stacked in multiple tiers. The packaging material is provided with storage recesses in at least one of the inner and outer parts of the annular storage recess at equal angular intervals in the circumferential direction of three or more equal parts with respect to the center point O of the storage recess when viewed in plan. A stepped convex portion consisting of multiple steps including a protruding upper surface that protrudes upward from the side portion and a correspondingly recessed stepped surface is provided, and between each stepped convex portion, the bottom surface of the storage recess is A stepped leg section is provided with a plurality of steps including a projecting bottom surface projecting downward and a bottom step surface slightly above the projecting bottom surface,
Each of the stepped convex portions and each of the stepped leg portions is formed to have a corresponding stepped shape when the plurality of steps are turned over, and each has a rotationally symmetrical shape of the equal dividing angle with respect to the center point O. The packaging materials of each packaging body are arranged so that the plurality of tiers are fitted against each other so that the tiered convex portions of the two face each other and the protruding upper surface is in contact with the other tier surface, and In the upper and lower packaging bodies, the stepped legs of the upper packaging material of the lower packaging body and the stepped legs of the lower packaging material of the upper packaging body face each other, and the protruding bottom surface faces the other bottom step surface. A collective packaging body for coiled wire rods, etc., characterized in that a plurality of stages are fitted into each other so as to be in contact with each other.