JP6232766B2 - Roving accumulation package - Google Patents

Description

Embodiment the present invention is, for example, a plurality of glass fiber winding yarn body (hereinafter referred to as "roving") relates to a roving integrated product packaging body comprising a object to be packed comprising a, more particularly, to stable the predetermined number of roving The present invention relates to a technique of a roving accumulation product packaging body that can be packed while being accumulated in a plurality of rovings and is suitable for carrying a plurality of rovings.

2. Description of the Related Art Conventionally, for example, there is known a roving accumulation product packaging body in which packages to be packaged composed of a plurality of rovings are accumulated and accumulated.
The roving accumulation package is mainly constructed according to the following procedure.
First, a predetermined number of rovings are arranged in a double row and a double row on a physical distribution pallet (loading table) and stacked in a plurality of stages to form a roving accumulation.
Next, a stretch film made of polyethylene resin or the like is coated around the configured roving accumulation, and the roving accumulation is tightly packaged by the stretch film, thereby constructing a roving accumulation package. .

Here, in the conventional roving accumulation product package, for example, as a means for preventing a step shift or crushing of each roving, for example, a column is disposed at a corner of the roving accumulation, and an upper surface of the roving accumulation is obtained. (See, for example, “Patent Document 1” and “Patent Document 2”).
However, in the techniques in the “Patent Document 1” and “Patent Document 2”, the number of packing members for holding the form of the roving accumulation, such as a support column and an upper lid, is large, and it is troublesome to pack the roving accumulation. There was a fault that packing cost increased.
Therefore, as a means for overcoming such drawbacks and realizing packaging that is simpler and suitable for protection of roving, the upper surface has four corners cut out while having ear pieces that can be bent on four sides. A technique for protecting the upper periphery of the roving accumulation using a packing member made of a protective plate is disclosed (see, for example, “Patent Document 3”).

Japanese Utility Model Publication No. 57-18302 Japanese Utility Model Publication No. 57-18303 JP-A-8-2549

According to the technique of the “Patent Document 3”, the labor for packing the roving accumulation can be reduced, and the packing cost can be reduced.
However, on the other hand, the four corners of the upper surface protection plate in “Patent Document 3” are notched, and the rovings positioned at the four corners of the roving accumulation are not sufficiently protected due to the notches, and are transported. In some cases, the outer layer was damaged.
Further, since the upper surface protection plate in the above-mentioned “Patent Document 3” has a structure in which the ear piece is simply bent, it is difficult to maintain the shape of the roving accumulation by the upper surface protection plate alone. When covering an object with a stretch film, it was necessary to temporarily fix the upper surface protective plate in a folded state using a restraining band or the like to restrain the periphery of the roving stack.
Therefore, in the conventional roving accumulation | aggregation | packing body shown by the said "patent document 3", when aiming at the reduction of packing cost, the room for improvement was still left.

The present invention has been made in view of the above-described problems of the present situation, and prevents the roving accumulation from being displaced, crushed, and damage to the outer layer, and reduces the labor of packing the roving accumulation. An object of the present invention is to provide a roving accumulator package that can reduce the packaging cost.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

The invention according to claim 1 is a base, and a roving stack formed by stacking a plurality of roving groups each including a plurality of rovings arranged in a double row and a double row on the base. An upper surface protection plate placed on the upper surface of the roving accumulation product, wherein the upper surface protection plate is formed in a rectangular plate shape substantially the same shape as the upper surface of the roving accumulation product. A plurality of strip-shaped ear pieces that extend outward from the respective side edge portions around the top plate portion and are formed to be bendable along the side edge portions; In the ear piece portions adjacent to each other, the end portion of the one ear piece portion on the other ear piece portion side extends in a direction along the side edge portion of the one ear piece portion. An end portion is formed, and the one ear piece portion and the other ear piece portion are Each of the ear pieces is bent in the same direction with respect to the top plate portion, and the extended extended end portion of the one ear piece portion is curved so as to be in close contact with the periphery of the roving stack, and the other ear portion is bent. The roving accumulator package is characterized in that it is fixed to one part and the upper surface protection plate is respectively placed on the upper surfaces of all roving groups constituting the roving accumulator.

  According to a second aspect of the present invention, in the upper surface protection plate, the extended end portion of the one ear piece portion is long enough to have an overlap margin at a fixing position with the other ear piece portion. It is related with the roving accumulation | aggregation | packing package characterized by the above-mentioned.

  In the invention according to claim 3, in the upper surface protection plate, the four corners of the top plate portion are formed in an arc shape along the outer peripheral surface of each roving arranged in the four corners in plan view of the roving accumulation product. The present invention relates to a roving accumulator package.

  The invention according to claim 4 is characterized in that, in each of the ear piece portions, the extending end portion is formed on one side in a direction along the side edge portion of the ear piece portion. It is related with the roving accumulator package.

According to a fifth aspect of the present invention, there is provided the roving accumulator package, wherein a stretch film is wound around the roving accumulator.

  As effects of the present invention, the following effects can be obtained.

According to the first aspect of the present invention, it is possible to prevent the stepping and crushing of the roving accumulation, damage to the outer layer, etc., reduce the labor for packing the roving accumulation, and reduce the packaging cost. .
That is, according to the roving accumulator package in the present invention, the extended end of one of the ear pieces adjacent to each other is closely attached along the periphery of the roving accumulator. Since it is curved and fixed to the shortened end of the other ear piece, it is possible to tightly bind the periphery of the upper part of the roving stack, effectively preventing the misalignment of the roving stack. can do.
In addition, the upper surface protection plate including these ear pieces can reliably protect the periphery of the upper part of the roving accumulation and the upper surface, and the outer layer portion of each roving is broken or crushed by contact during transportation. Can be effectively prevented.
Furthermore, according to the roving integrated product packaging body of the present invention, since the upper surface protection plate in which the ends of the adjacent ear piece portions are fixed in advance is used, the ear piece portion of the upper surface protection plate using a restraining band or the like. Since the packaging material is reduced without the need to temporarily fix the upper part of the roving accumulation and restraining the periphery of the roving accumulation, the labor for packing the roving accumulation can be reduced and the packaging cost can be reduced.
According to the first aspect of the present invention, by placing the upper surface protection plate on the upper surfaces of all the roving groups, the form of the roving accumulation can be more firmly maintained.

According to the second aspect of the present invention, for example, even if a dimensional error occurs in the circumference of the upper portion of the roving stack, one ear piece portion and the other ear are adjusted while adjusting the “overlap allowance”. The folding position of the one part can be appropriately changed.
Therefore, it is possible to easily adhere these one ear piece part and the other ear piece part around the upper part of the roving accumulation, and to bind the circumference of the roving accumulation more reliably. .

According to the invention described in claim 3, when the stretch film is wound around the roving accumulation, it is possible to receive the tightening action of the stretch film by the corner portion of the top plate portion. Become.
Therefore, it becomes possible to alleviate the excessive tightening action on the stretch film with respect to the rovings arranged at the four corners in plan view of the roving accumulation product, and it is possible to effectively prevent the roving from being crushed.

According to the invention described in claim 4, the plurality of ear pieces provided on the upper surface protection plate extend along the respective side edges around the top plate and toward one side around the periphery. It will be arranged in such a way that it comes out.
Therefore, the upper surface protection plate can be more firmly fixed by matching the winding direction when the stretch film is wound around the roving accumulation product with the extending direction of these ear pieces.

According to the invention described in claim 5 , the form of the roving accumulation can be more firmly held by the tightening action of the stretch film.

The perspective view which showed the whole structure of the roving accumulation | aggregation package in one Embodiment of this invention. The exploded view which showed the component of the roving accumulation | aggregation | packing body in this embodiment. The expanded view which showed the shape of the upper surface protection board with which the roving integrated packing body in this embodiment is equipped. The expanded view which showed the shape of the upper surface protection board in another embodiment. The expanded view which showed the shape of the upper surface protection board in other another embodiment.

  Next, embodiments of the invention will be described.

[Roving collection package 1]
First, the whole structure of the roving accumulation | aggregation | packing body 1 which embodies this invention is demonstrated using FIG. 1 and FIG.
In addition, regarding the following description, for convenience, the vertical direction in FIGS. 1 and 2 is described as the vertical direction of the roving accumulation product package 1.
In FIGS. 1 and 2, the direction of the arrow A is defined as the front direction.

  The roving accumulator package 1 in the present embodiment is a package in which a plurality of glass fiber wound bodies (hereinafter referred to as “roving”) are accumulated in a stable form, and as shown in FIG. It is mainly composed of a base 2, a roving accumulation 3, an upper surface protective plate 4, a stretch film 5, and the like.

The base 2 serves as a base of the roving accumulation product package 1.
The base 2 is made of an optimal material selected as appropriate, such as, for example, wood, metal, synthetic resin, or FRP (reinforced plastic), and is configured as a pallet (loading base) into which a forklift carrying claw can be inserted. .

  The configuration of the base 2 is not limited to that of the present embodiment. For example, the base 2 has a sufficient area for mounting the roving accumulation 3 described later, and the roving accumulation 3 is firmly formed. Any structure may be used as long as it has rigidity capable of being supported.

Next, the roving accumulation product 3 will be described.
The roving accumulation 3 is composed of a plurality of rovings 31a, 31a.
Here, the roving 31a forms, for example, a strand by bundling hundreds of monofilaments of glass fibers having a fiber diameter of several [μm] to several tens [μm], and the strands are aligned and wound into a cylindrical shape. Formed by taking.

On the base 2, a plurality of rovings 31 a, 31 a... Are arranged in double rows and double columns (for example, four rows and four columns in the present embodiment) to constitute a roving group 31.
Further, the plurality of roving groups 31, 31,... Are further stacked in a plurality of stages (for example, four stages in the present embodiment) to form the roving accumulation 3.

Next, the upper surface protection plate 4 will be described.
The upper surface protection plate 4 is a packing member for holding the form of the roving accumulation product 3 that is an object to be packed.
The upper surface protection plate 4 is formed in a box shape with one surface opened, and has substantially the same shape as the upper surface of the roving accumulation 3 (that is, the upper surface of each roving group 31, 31...) As will be described later. And a pair of first ear pieces 42 and 42 that are erected or suspended along an edge of the top plate part 41, a pair of second ear pieces 43 and 43, and the like. The

And in this embodiment, the upper surface protection board 4 is mounted so that it may adhere to the upper surface of each roving group 31,31 .... Moreover, the upper surface protection plate 4 is arrange | positioned so that the lower part of roving group 31 * 31 ... of the lowest layer may be covered.
As a result, the periphery of each roving group 31, 31... Is bound by the first ear piece portion 42 and the second ear piece portion 43, and the form of each roving group 31, 31. It will be. As a result, the shape of the roving accumulation 3 is firmly maintained as a whole.

Next, the stretch film 5 will be described.
The stretch film 5 is for holding the entire roving accumulation 3 composed of a plurality of roving groups 31, 31... Stacked on the base 2.
The stretch film 5 is made of a polyethylene film material. However, the material of the stretch film 5 is not limited to this, and for example, a film material made of another material such as vinyl chloride may be used.

The stretch film 5 is wound around the roving groups 31, 31... Stacked in a plurality of stages on the base 2.
As a result, the plurality of roving groups 31, 31... Are held together via the stretch film 5, and the form of the roving accumulation 3 constituted by these roving groups 31, 31. It is held firmly.

  By the way, when the stretch film 5 is wound around the roving accumulation 3, for example, the stretch film 5 is uniformly coated on each part of the roving accumulation 3 while applying a certain tension to the stretch film 5. It is common to let them.

Here, if the winding force when the stretch film 5 is wound around the roving stack 3 is too strong, the roving 31a constituting the roving stack 3 is likely to be crushed, and the winding force is If it is too weak, there is a tendency that a step shift tends to occur in the roving group 31 constituting the roving accumulation 3.
In consideration of such a tendency, the winding condition of the stretch film 5 includes the number of roving groups 31, 31... In the roving accumulation 3 and the arrangement of the rovings 31 a, 31 a. While considering the number, physical properties of each roving 31a, etc., the roving accumulation 3 is appropriately set so as not to be displaced or crushed.

The roving accumulation | aggregation | packing body 1 which consists of the above structures is constructed | assembled according to the following procedures.
First, as shown in FIG. 2, the upper surface protection plate 4 (hereinafter referred to as “first upper surface protection plate 4 </ b> A” as necessary) is placed on the upper surface of the base 2.
At this time, the first upper surface protection plate 4A is placed so as to open upward with the top plate portion 41 facing downward.

After the first upper surface protection plate 4A is placed on the upper surface of the base 2, a predetermined number of rovings 31a, 31a,... Are arranged in four rows and four columns to form a roving group 31 (hereinafter referred to as “first roving group 31A” as necessary).
Accordingly, the lower periphery of the first roving group 31A is bound by the first ear piece portion 42 and the second ear piece portion 43 of the first upper surface protection plate 4A, and the form of the first roving group 31A is Retained.

After the first roving group 31A is configured in the first upper surface protection plate 4A, the upper surface protection plate 4 (hereinafter referred to as “second upper surface protection plate 4B” as necessary) is formed on the upper surface of the first roving group 31A. Adhere).
Thereby, the circumference | surroundings of the upper part of 31 A of 1st roving groups will be united by the 1st ear piece part 42 and the 2nd ear piece part 43 of the 2nd upper surface protection plate 4B, and the form of said 1st roving group 31A is , More firmly held.

  After attaching the second upper surface protection plate 4B to the upper surface of the first roving group 31A, a predetermined number of rovings 31a, 31a,... Are arranged in a double row and a double row on the upper surface of the second upper surface protection plate 4B. A roving group 31 (hereinafter referred to as “second roving group 31B” as necessary) is configured.

After the second roving group 31B is configured on the second upper surface protection plate 4B, the upper surface protection plate 4 (hereinafter referred to as “third upper surface protection plate 4C” as necessary) is formed on the upper surface of the second roving group 31B. Adhere).
As a result, the upper periphery of the second roving group 31B is bound by the first ear piece portion 42 and the second ear piece portion 43 of the third upper surface protection plate 4C, and the form of the second roving group 31B is Retained.

After the third upper surface protection plate 4C is attached to the upper surface of the second roving group 31B, the roving group 31 is further configured on the upper surface of the third upper surface protection plate 4C, and then the upper surface protection plate is formed on the upper surface of the roving group 31. 4 is attached.
.. Until the number of stages of the roving groups 31, 31... On the base 2 reaches a predetermined number of stages (for example, four stages in the present embodiment) and the roving group 31. The top surface protection plate 4 is repeatedly applied to construct the roving accumulation 3.

Then, after constructing the roving accumulation 3 on the base 2, the stretch film 5 is wound around the roving accumulation 3.
Thereby, the roving accumulation product 3 is firmly held on the base 2, and the construction of the roving accumulation product package 1 is completed.

  As described above, in the roving accumulation product package 1 according to the present embodiment, the upper surface protection plates 4, 4... Are mounted on the upper surfaces of all the roving groups 31, 31. The configuration of the roving accumulation 3 can be held more firmly.

The arrangement of the upper surface protection plate 4 is not limited to the configuration of the present embodiment. For example, in consideration of work efficiency, economy, etc., the upper surface of the roving stack 3, that is, the uppermost roving group. It is good also as arrange | positioning only on the upper surface of 31.
In this case, the form of the uppermost roving group 31 is directly held by the upper surface protection plate 4, and further, the form of the uppermost roving group 31 is held by the upper surface protection plate 4, thereby the uppermost roving group 31. The shape of the roving group 31 below the uppermost roving group 31 where the 31 is disposed at a desired position is indirectly held, and as a result, the shape of the roving accumulation 3 is held as a whole. It becomes.

[Top protection plate 4]
Next, the configuration of the upper surface protection plate 4 will be described in detail with reference to FIG.
In the following description, for the sake of convenience, the direction of arrow A in FIG.

The upper surface protection plate 4 is integrally formed of, for example, a paperboard such as cardboard, and mainly includes a top plate portion 41, a pair of first ear piece portions 42, 42, a pair of second ear piece portions 43, 43, and the like. Composed.
In addition, about the material of the upper surface protection board 4, it is not limited to this, For example, you may use the plate-shaped resin member comprised with a thermoplastic resin etc.

The top plate portion 41 is a portion that becomes a base portion of the upper surface protection plate 4.
The top plate portion 41 is formed in a rectangular plate shape that is substantially the same shape as the upper surface of each roving group 31 (see FIG. 2) that constitutes the roving stack 3.

  And the four corners (hereinafter referred to as “corner portion 41a”) of the top plate portion 41 are arcuate along the outer peripheral surfaces of the respective rovings 31a, 31a,. It is formed.

Thus, in this embodiment, since each corner part 41a of the top plate part 41 is formed in the circular arc shape along the outer peripheral surface of the rovings 31a, 31a. When the stretch film 5 is wound around the object 3, the corner 41 a can receive the tightening force of the stretch film 5, and each corner of the top plate 41 can be bent and bent. Excessive pressure is not applied.
Accordingly, it becomes possible to alleviate the effect of tightening the stretch film 5 on the rovings 31a, 31a,... Arranged in the four corners of the roving accumulation 3 in plan view, and the rovings 31a, 31a,. Crushing can be prevented.

Next, the first ear piece 42 will be described.
The 1st ear piece part 42 is a site | part for bundling the circumference | surroundings of the roving group 31 with the 2nd ear piece part 43 mentioned later.
The first ear piece portion 42 is formed in a strip shape extending from the respective side edge portions 41b on both the front and rear sides of the top plate portion 41 toward the outside (forward and backward directions).

The extension dimension to the outside of the first ear piece portion 42 is formed to be smaller than the lengths of the side edge portions 41 b on the front and rear sides of the top plate portion 41, and the side edge portions on the front and rear sides of the top plate portion 41. The direction along 41 b is the longitudinal direction of the first ear piece 42.
The first ear pieces 42 and 42 are configured to be bendable along side edge portions 41 b and 41 b on both front and rear sides of the top plate portion 41.

The side edge portions 41b and 41b on both the front and rear sides of the top plate portion 41 are straight portions excluding the left and right corner portions 41a of the outer peripheral edges from the left end to the right end on the front and rear sides of the top plate portion 41, respectively. I mean.
Moreover, the dimension of the longitudinal direction of the 1st ear piece part 42 is the dimension (in FIG. 3) of the side edge part 41b of the front side (direction of arrow A) except the corner parts 41a, 41a ... of the top-plate part 41. “Dimension Z1”) or the dimension of the side edge 41b on the rear side (opposite direction to the arrow A) (“Dimension Z2” in FIG. 3) is set to be approximately the same.

The first ear pieces 42 and 42 are integrally formed with the top plate portion 41 so as to be arranged along the side edge portions 41 b and 41 b on both the front and rear sides of the top plate portion 41.
In other words, the first ear piece portions 42 and 42 are formed along the side edge portions 41 b and 41 b on both the front and rear sides of the top plate portion 41, respectively, and are outward from the side edge portions 41 b and 41 b on the front and rear sides of the top plate portion 41. It is a strip-shaped ear piece that protrudes by a predetermined dimension toward the front and rear sides, and the longitudinal dimension thereof is the top plate with respect to the left-right dimension of the top plate part 41 (the vertical dimension in FIG. 3). The size is shortened by the corners 41a and 41a at the left and right ends of the part 41.
In addition, in the first ear piece portions 42, 42, the projecting dimension to the outside (front side and rear side) from the side edge portions 41b, 41b on both the front and rear sides of the top plate portion 41 (shortness of the first ear piece portions 42, 42). The dimension in the hand direction) is smaller than the dimension in the axial direction of the roving 31a. For example, the dimension in the axial direction is approximately half to one third of the axial dimension of the roving 31a.

As will be described later, these first ear pieces 42, 42 are bent along the side edges 41b, 41b, and when the upper surface protection plate 4 is constructed in a box shape, The one ear piece portions 42 are folded in the same direction with respect to the top plate portion 41.
Therefore, in order to facilitate the folding operation of the first ear piece portion 42, the front and rear side portions of the top plate portion 41, which are connection portions between the top plate portion 41 and the first ear piece portions 42 and 42, are arranged. It is preferable to form folds in advance along the side edges 41b and 41b.

Next, the second ear piece portion 43 will be described.
The second ear piece 43 is a part for binding the periphery of the roving group 31 together with the first ear piece 42 described above.
The second ear piece 43 is formed in a belt shape extending outward (leftward and rightward) from the side edge portions 41 c on both the left and right sides of the top plate portion 41.

The extension dimension of the second ear piece 43 to the outside is formed to be smaller than the length of each side edge 41 c on both the left and right sides of the top plate portion 41, and each side edge on the left and right sides of the top plate portion 41. The direction along 41 c is the longitudinal direction of the second ear piece 43 .
Further, the second ear piece portions 43 and 43 are configured to be bendable along side edge portions 41 c and 41 c on both the left and right sides of the top plate portion 41.

The side edge portions 41c and 41c on both the left and right sides of the top plate portion 41 are straight lines excluding the front and rear corner portions 41a of the outer peripheral edge portions from the front end to the rear end on the left and right sides of the top plate portion 41, respectively. It means the part.
Further, the longitudinal dimension of the second ear piece 43 is the dimension of the side edge 41c on the right side (one side in the direction orthogonal to the arrow A) of the top plate 41 ("dimension Z3" in FIG. 3), or It is set to be sufficiently longer than the dimension ("dimension Z4" in FIG. 3) of the side edge 41c on the left side (the other side in the direction orthogonal to the arrow A).
Furthermore, the dimension in the width direction (short direction) of the second ear piece portion 43 is set to be approximately the same as the dimension in the width direction (short direction) of the first ear piece portion 42.

The second ear piece portions 43 and 43 are arranged along the side edge portions 41c and 41c on both the left and right sides of the top plate portion 41 at the center portion in the longitudinal direction of the top ear portion 43, respectively. 41 is formed integrally.
Thereby, both ends in the longitudinal direction of each second ear piece portion 43 (hereinafter referred to as “extending end portions 43a and 43a”) are extended in the extending direction of the side edge portion 41c on the right side or the left side of the top plate portion 41. It is extended toward.
In other words, the second ear piece portions 43 and 43 are formed along the left and right side edge portions 41 c and 41 c of the top plate portion 41, respectively, and from the left and right side edge portions 41 c and 41 c of the top plate portion 41. It is a strip-shaped ear piece that protrudes toward the outside (left and right) by a predetermined dimension, and both longitudinal ends thereof have longitudinal dimensions of the second ear pieces 43 and 43 in front of and behind the top plate 41. Along the longitudinal direction (the direction along the side edges 41c and 41c on the left and right sides of the top plate 41) of the second ear piece 43 and 43 so as to be longer than the dimension (the dimension in the left and right direction in FIG. 3). Has been extended.
That is, the second ear piece portions 43 and 43 are formed such that the longitudinal dimension thereof is the size of the side edge portions 41c and 41c on the left and right sides of the top plate portion 41 ("dimensions Z3 and Z4" in FIG. 3). It has a main body part and extended end parts 43a and 43a extending from the main body part in the front-rear direction by a predetermined dimension ("dimension X1" in FIG. 3).

  Here, the dimension in the longitudinal direction (“dimension X1” in FIG. 3) of each extending end 43a of the second ear piece 43 is equal to each corner 41a (more specifically, each extension 41). It is set to be longer (X1> Y1) than the length of the arc (“dimension Y1” in FIG. 3) at the corner 41a) closest to the protruding end 43a.

As will be described later, these second ear pieces 43 and 43 are bent along the side edge portions 41c and 41c, and when the upper surface protection plate 4 is constructed in a box shape, The two ear pieces 43 and 43 are folded together with the first ear pieces 42 and 42 in the same direction with respect to the top plate 41.
Therefore, in order to facilitate the folding operation of the second ear piece portion 43, side edges on the left and right sides of the top plate portion 41, which are connection points between the top plate portion 41 and the second ear piece portion 43. It is preferable that a crease is formed in advance along the portions 41c and 41c.

Similarly, when the upper surface protection plate 4 is constructed in a box shape, each extended end portion 43 a of the second ear piece portion 43 is curved along the arc of the corner portion 41 a of the top plate portion 41. The
Therefore, in order to facilitate the bending operation of the extended end portion 43a, a plurality of fold lines 43b, 43b,... Extending in the width direction are provided on the plane of the extended end portion 43a. It is preferable to form them in parallel beforehand.

  Thus, the upper surface protection plate 4 according to the present embodiment extends outward from each side edge 41c (or 41b) around the top plate 41 and extends along the side edge 41c (or 41b). First ears having a plurality of belt-like ear pieces (more specifically, first ear pieces 42 and 42 or second ear pieces 43 and 43) formed to be bendable and adjacent to each other. In the piece part 42 and the second ear piece part 43, the second ear piece part (one ear piece part) 43 has an end on the first ear piece part (the other ear piece part) 42 side at the second ear piece part. An extended end portion 43 a extending in the direction along the side edge portion 41 c in the one portion (one ear piece portion) 43 is formed.

And the upper surface protection board 4 which consists of such a structure is constructed | assembled in a box shape according to the following procedures.
First, the upper surface protection plate 4 is placed on the upper surface of the roving group 31 placed on the base 2, and the first ear piece portion (the other ear piece portion) 42 of the placed upper surface protection plate 4. 42 and the second ear piece portion (one ear piece portion) 43, 43 along the side edge portions 41b, 41b and the side edge portions 41c, 41c in the same direction side (lower side). Fold it in.
As a result, the first ear piece portions 42 and 42 and the second ear piece portions 43 and 43 are suspended along the front and rear sides and the left and right side edges 41b, 41b, 41c and 41c of the top plate portion 41, respectively. The

After the first ear piece portions 42 and 42 and the second ear piece portions 43 and 43 are bent and dropped with respect to the top plate portion 41, each second ear piece portion (one ear piece portion) 43 is extended. The end portions (extended end portions) 43a and 43a are curved so as to be in close contact with each other around the corners in the upper part of the roving group 31, in other words, along the corners 41a, 41a. .
At this time, as described above, the length dimension of each extended end portion 43a of the second ear piece portion 43 is longer than the length of the arc of each corner portion 41a of the top plate portion 41. The tip of the end 43a will protrude somewhat from the corner 41a.

  And about each area | region (henceforth "a stacking allowance") which protruded from each corner 41a of the top-plate part 41 in each extension end part 43a of the 2nd ear piece part 43, the said extension end part 43a and It overlaps with the back surface (surface on the direction side where the first ear piece portion 42 is folded) of the end portions of the adjacent first ear piece portions 42.

  The adjustment of the “overlap allowance” is preferably performed while the extending end portions 43a of the second ear piece portions 43 are curved while being actually along the outer peripheral surface of the rovings 31a.

  Thus, in the state where the “overlap” of the second ear piece portion 43 is overlapped on the end portion of the first ear piece portion 42, the overlapping portion of the first ear piece portion 42 and the second ear piece portion 43 is determined. Fix firmly with adhesive tape. Thereby, the upper surface protection plate 4 is constructed in a box shape.

Thus, in the upper surface protection plate 4 in the present embodiment, the extended end portion (extended end portion) 43a of the second ear piece portion (one ear piece portion) 43 is the first ear piece portion ( In the overlapping position (fixed position) with the end portion of the other ear piece portion, it is formed with a sufficient length to have an “overlapping allowance”.
Therefore, for example, even if a dimensional error occurs in the upper circumferential length of the roving stack 3, the first ear piece portions 42 and 42 and the second ear piece portions 43 and 43 are adjusted while adjusting the “overlap allowance”. The folding position can be changed as appropriate.
Therefore, the first ear piece portions 42 and 42 and the second ear piece portions 43 and 43 can be easily adhered to the periphery of the upper portion of the roving accumulation 3, and the periphery of the roving group 31 is bound more reliably. It can be done.

  In addition, the upper surface protection plate 4 (that is, the upper surface protection plate 4 that is directly placed on the base 2 and binds the lower portion of the lowermost roving group 31) arranged in the lower end portion of the roving accumulation 3 is formed in a box shape. When constructing, the roving group 31 is arranged on the upper surface protection plate 4 placed on the base 2, and the first ear piece portions 42 and 42 and the second ear piece portions 43 and 43 are bent upward. The upper surface protection plate 4 can be constructed in a box shape by fixing the overlapping portions of the first ear piece portion 42 and the second ear piece portion 43 that are upright and bent with an adhesive tape or the like.

[Top protection plate 104]
Next, the configuration of the upper surface protection plate 104 in another embodiment will be described in detail with reference to FIG.
In the following description, for the sake of convenience, the direction of arrow A in FIG.

The upper surface protection plate 104 in another embodiment has a configuration substantially equivalent to that of the upper surface protection plate 4 described above, but differs from the upper surface protection plate 4 in the configuration of the first ear piece portion 142 and the second ear piece portion 143. .
Therefore, in the following description, differences from the upper surface protection plate 4 are mainly described, and description of an equivalent configuration with the upper surface protection plate 4 is omitted.

The 1st ear piece part 142 is a site | part for uniting the circumference | surroundings of the roving group 31 (refer FIG. 2) with the 2nd ear piece part 143 mentioned later.
The first ear piece 142 is formed in a belt shape extending from the respective side edge portions 141b on the front and rear sides of the top plate portion 141 to the outer side (front direction and rear direction).

The extension dimension to the outside of the first ear piece portion 142 is formed to be smaller than the length of each side edge portion 141b on both front and rear sides of the top plate portion 141, and each side edge portion on both front and rear sides of the top plate portion 141. The direction along 141 b is the longitudinal direction of the first ear piece 142.
The first ear pieces 142 and 142 are configured to be bendable along side edge portions 141 b and 141 b on both front and rear sides of the top plate portion 141.

The side edge portions 141b and 141b on both the front and rear sides of the top plate portion 141 are straight portions excluding the left and right corner portions 141a of the outer peripheral edges from the left end to the right end on the front and rear sides of the top plate portion 141, respectively. I mean.
Further, the longitudinal dimension of the first ear piece 142 is the dimension of the side edge 141b on the front side (arrow A direction side) of the top plate 141 ("dimension Z11" in FIG. 4) or the rear side (arrow). It is set to be sufficiently longer than the dimension of the side edge 141b ("dimension Z12" in FIG. 4) on the side facing A).

The first ear piece portions 142 and 142 are formed integrally with the top plate portion 141 so as to be disposed along the side edge portions 141b and 141b on both the front and rear sides of the top plate portion 141, respectively.
At this time, in the first ear piece portion 142 on the front side of the top plate portion 141 (hereinafter referred to as “front side first ear piece portion 142A” as necessary), one side in the longitudinal direction (in this embodiment, The right side end portion (hereinafter referred to as “extending end portion 142a”) is directed to one side (right side in the present embodiment) of the front edge portion 141b of the top plate portion 141 in the extending direction. Extended.
In other words, the front first ear piece portion 142A is formed along the front side edge portion 141b of the top plate portion 141, and has a predetermined dimension from the front side edge portion 141b of the top plate portion 141 toward the outside (front side). This is a band-like ear piece that protrudes only, and the right end in the longitudinal direction extends rightward from the range of the front side edge 141b (the range of the dimension Z11 in FIG. 4).

Further, in the first ear piece portion 142 on the rear side of the top plate portion 141 (hereinafter referred to as “rear first ear piece portion 142B” if necessary), the other side in the longitudinal direction (in the present embodiment). The left-side extended end portion 142a extends toward the other side (left side in the present embodiment) of the side edge portion 141b on the rear side of the top plate portion 141 in the extending direction.
In other words, the rear first ear piece portion 142B is formed along the rear side edge portion 141b of the top plate portion 141, and from the rear side edge portion 141b of the top plate portion 141 to the outside (rear side). It is a band-like ear piece projecting by a predetermined dimension toward the left, and its left end in the longitudinal direction extends leftward from the range of the rear side edge 141b (the range of dimension Z12 in FIG. 4). Yes.

On the other hand, the second ear piece 143 is a part for binding the periphery of the roving group 31 together with the first ear piece 142 described above.
Similar to the first ear piece 142, the secondary piece 143 is formed in a strip shape extending outward (leftward and rightward) from the side edge portions 141c on the left and right sides of the top plate 141. The

The extension dimension of the secondary piece part 143 to the outside is formed smaller than the length of each side edge part 141 c on both the left and right sides of the top plate part 141, and each side edge part on both the left and right sides of the top plate part 141. The direction along 141 c is the longitudinal direction of the secondary piece 143.
Moreover, the secondary piece parts 143 and 143 are configured to be bendable along side edge parts 141c and 141c on both the left and right sides of the top plate part 141.

The left and right side edge portions 141c and 141c of the top plate portion 141 are straight lines excluding the front and rear corner portions 141a of the outer peripheral edge portions from the front end to the rear end on the left and right sides of the top plate portion 141, respectively. It means the part.
In addition, the longitudinal dimension of the second ear piece 143 is the dimension of the side edge part 141c on the right side (one side in the direction orthogonal to the arrow A) of the top plate part 141 ("dimension Z13" in FIG. 4), or It is set to be sufficiently longer than the dimension (“dimension Z14” in FIG. 4) of the side edge portion 141c on the left side (the other side in the direction orthogonal to the arrow A).

The second ear piece portions 143 and 143 are formed integrally with the top plate portion 141 so as to be arranged along the side edge portions 141c and 141c on the left and right sides of the top plate portion 141, respectively.
At this time, in the second ear piece portion 143 on the right side of the top plate portion 141 (hereinafter referred to as “right second ear piece portion 143A” as necessary), one side in the longitudinal direction (in this embodiment, The rear side end portion (hereinafter referred to as “extended end portion 143a”) is one side in the extending direction of the right side edge portion 141c of the top plate portion 141 (in the present embodiment, the rear side). It is extended toward.
In other words, the right second ear piece portion 143A is formed along the right side edge portion 141c of the top plate portion 141, and has a predetermined dimension from the right side edge portion 141c of the top plate portion 141 toward the outside (right side). This is a band-like ear piece that protrudes only, and its rear end in the longitudinal direction extends rearward from the range of the right side edge 141c (the range of dimension Z13 in FIG. 4).

Further, in the second ear piece portion 143 on the left side of the top plate portion 141 (hereinafter referred to as “left second ear piece portion 143B” if necessary), the other side in the longitudinal direction (in the present embodiment, the front side) ) Extending end portion 143a extends toward the other side (the front side in the present embodiment) of the left side edge portion 141c of the top plate portion 141.
In other words, the left second ear piece portion 143B is formed along the left side edge portion 141c of the top plate portion 141, and has a predetermined dimension from the left side edge portion 141c of the top plate portion 141 toward the outside (left side). This is a band-shaped ear piece that protrudes only, and its front end in the longitudinal direction extends forward from the range of the left side edge 141c (the range of dimension Z14 in FIG. 4).

As described above, the upper surface protection plate 104 according to another embodiment extends outward from each side edge portion 141c (or 141b) around the top plate portion 141, and extends along the side edge portion 141c (or 141b). The first ear piece 142 has a plurality of band-like ear pieces (more specifically, the first ear piece 142 and the second ear piece 143) that can be bent. In the second ear piece portion 143, for example, at the end portion on the rear first ear piece portion (the other ear piece portion) 142B which is one side of the right second ear piece portion (one ear piece portion) 143A. An extended end portion 143a extending along the longitudinal direction of the right second ear piece portion (one ear piece portion) 143A is formed.
In addition, the front first ear piece (one ear piece) is connected to the end on the right second ear piece (one ear piece) 143A side which is one side of the front first ear piece (one ear piece) 142A. An extension end portion 142a extending along the longitudinal direction of the (ear piece portion) 142A is formed.
Furthermore, the left second ear piece portion (one ear piece portion) 143B has a left second ear piece portion (one ear piece portion) at the end of the front first ear piece portion (the other ear piece portion) 142A that is one side of the left second ear piece portion (one ear piece portion) 143B. An extension end portion 143a extending along the longitudinal direction of the (ear piece portion) 143B is formed.
In addition, a rear first ear piece portion (on the left second ear piece portion (the other ear piece portion) 143B side, which is one side of the rear first ear piece portion (one ear piece portion) 142B, is provided. An extension end 142a extending along the longitudinal direction of one ear piece 142B is formed.

That is, in the upper surface protection plate 104 according to another embodiment, both the extended end portion 142a of the first ear piece portion 142 and the extended end portion 143a of the second ear piece portion 143 are each of the top plate portion 141. It extends toward the extending direction of the side edge portion 141c (or 141b).
The extended end 142a of the first ear piece 142 is different from the extended end 143a of the second ear piece 143 in the second ear piece 143 provided close to the extended end 142a. It arrange | positions so that it may be located adjacent to the edge part on the opposite side.
Further, the extension end portion 143a of the second ear piece portion 143 is the extension end portion 142a of the first ear piece portion 142 in the first ear piece portion 142 provided close to the extension end portion 143a. It arrange | positions so that it may be located adjacent to the edge part on the opposite side.

  In other words, the extended end portions 142a and 142a of the first ear piece portions 142 and 142 and the extended end portions 143a and 143a of the second ear piece portions 143 and 143 are respectively connected to the first ear piece portions 142 and 142, and From the second ear pieces 143 and 143 to the one side (in the clockwise direction in FIG. 4) along the side edge portions 141b, 141b, 141c and 141c around the top plate portion 141. They are arranged so as to extend toward each other.

And the upper surface protection board 104 which consists of such a structure is constructed | assembled in a box shape according to the following procedures.
First, the upper surface protection plate 104 is placed on the upper surface of the roving group 31 placed on the base 2, and the first ear piece portion (the other ear piece portion) 142 of the placed upper surface protection plate 104. 142 and the second ear piece portion (one ear piece portion) 143 and 143 are folded in the same direction side (lower side) with respect to the top plate portion 141 along the side edge portions 141b and 141b and 141c and 141c.
As a result, the first ear piece portions 142 and 142 and the second ear piece portions 143 and 143 are respectively suspended along the front and rear sides and the left and right side edge portions 141b, 141b, 141c, and 141c of the top plate portion 141. The

After the first ear piece portions 142 and 142 and the second ear piece portions 143 and 143 are bent and dropped with respect to the top plate portion 141, each first ear piece portion (the other ear piece portion) 142 and each of the first ear piece portions 142 and 143 are dropped. The extended end portions (extended end portions) 142a and 143a of the two ear piece portions (one ear piece portion) 143 are surrounded by the corners in the upper portion of the roving group 31, in other words, the corner portions 141a of the top plate portion 141. -Each of them is bent so as to be in close contact along 141a.
At this time, the length dimensions of the extended end portions 142 a and 143 a of the first ear piece portion 142 and the second ear piece portion 143 are longer than the length of the arc of each corner portion 141 a of the top plate portion 141. For this reason, the end portions of the extended end portions 142a and 143a slightly protrude from the corner portion 141a.

And about the area | region (henceforth "the 1st overlap allowance") which protruded from the corner part 141a of the top-plate part 141 in the extended end part 142a of 142 A of front side 1st ear piece parts, the said extended end part It overlaps with the back surface (the surface on the side in which the right second ear piece portion 143A is folded) of the end portion of the right second ear piece portion 143A adjacent to 142a.
Further, in the extended end portion 143a of the right second ear piece portion 143A, the extended end of the region protruding from the corner portion 141a of the top plate portion 141 (hereinafter referred to as “second overlap allowance”) is described. It overlaps with the back surface (the surface on the folded direction side of the rear first ear piece portion 142B) of the end portion of the rear first ear piece portion 142B adjacent to the portion 143a.
In addition, in the extended end portion 142a of the rear first ear piece portion 142B, the region protruding from the corner portion 141a of the top plate portion 141 (hereinafter referred to as “third overlap allowance”) is extended. It overlaps with the back surface of the end portion of the left second ear piece portion 143B adjacent to the end portion 142a (the surface on the side in which the left second ear piece portion 143B is folded).
Further, in the extended end portion 143a of the left second ear piece portion 143B, the extended end of the region protruding from the corner portion 141a of the top plate portion 141 (hereinafter referred to as “fourth overlap allowance”) is described. It overlaps with the back surface of the end portion of the front first ear piece portion 142A adjacent to the portion 143a (the surface on the folded side of the front first ear piece portion 142A).

For the adjustment of the “first to fourth overlapping margins”, the extended end portion 142a of the first ear piece 142 and the second ear piece portion are arranged along the outer peripheral surface of each roving 31a. It is preferable to perform it while curving the extended end portions 143a of 143.
At this time, in the case of the upper surface protection plate 104 according to the present embodiment, the direction in which the extended surface portions 142a, 142a, 143a, and 143a are aligned along the outer peripheral surface of each roving 31a is the same direction (for example, In the present embodiment, since it can be unified in the clockwise direction in plan view, the adjustment work of the overlap allowance is also facilitated.

Thus, the “fourth overlap margin” of the left second ear piece portion 143B is superimposed on the end portion of the front first ear piece portion 142A, and the rear first ear piece portion is placed on the end portion of the left second ear piece portion 143B. 142B's “third overlap margin” is overlapped, and the “second overlap margin” of the right second ear piece portion 143A is overlapped with the end portion of the rear first ear piece portion 142B, and the right second ear piece portion is overlapped. In the state where the “first overlap margin” of the front first ear piece portion 142A is overlaid on the end portion of 143A, the first ear piece portions 142A and 142B and the second ear piece portions 143A and 143B are overlapped with each other. However, it is firmly fixed with adhesive tape.
Thereby, the upper surface protection plate 104 is constructed in a box shape.

[Top protection plate 204]
Next, the configuration of the upper surface protection plate 204 in another embodiment will be described in detail with reference to FIG.
In the following description, for the sake of convenience, the direction of arrow A in FIG.

The upper surface protection plate 204 in another embodiment has a configuration substantially equivalent to the above-described upper surface protection plate 4, while the configuration of the top plate portion 241 is different from the upper surface protection plate 4.
Therefore, in the following description, differences from the upper surface protection plate 4 are mainly described, and description of an equivalent configuration with the upper surface protection plate 4 is omitted.

The top plate portion 241 is a portion that becomes a base portion of the upper surface protection plate 204.
The top plate portion 241 is formed in a rectangular plate shape that is substantially the same as the top surface shape of each roving group 31 (see FIG. 2) constituting the roving stack 3.

Here, as for the four corners (corner portions 241a, 241a,...) Of the top plate portion 241 according to another embodiment, the corner portions 41a, 41a,. Thus, it is not processed into an arc shape, and has a right-angle shape.
Therefore, according to the upper surface protection plate 204 in the present embodiment, since the man-hours when processing the four corners (corner portions 241a, 241a...) Of the top plate portion 241 into an arc shape can be omitted, the upper surface protection plate The manufacturing cost of 204 can be reduced.

Next, the first ear piece 242 will be described.
The 1st ear piece part 242 is a site | part for bundling the circumference | surroundings of the roving group 31 with the 2nd ear piece part 243 mentioned later.
The first ear piece portion 242 is formed in a strip shape extending outward (forward and backward ) from the respective side edge portions 241b on the front and rear sides of the top plate portion 241.

The extension dimension to the outside of the first ear piece portion 242 is formed to be smaller than the length of each side edge portion 241b on both front and rear sides of the top plate portion 241, and each side edge portion on both front and rear sides of the top plate portion 241. The direction along 241 b is the longitudinal direction of the first ear piece 242.
Further, the first ear piece portions 242 and 242 are configured to be bendable along side edge portions 241b and 241b on both front and rear sides of the top plate portion 241.

Note that the side edge portions 241b and 241b on both the front and rear sides of the top plate portion 241 are straight portions excluding the left and right corner portions 241a of the outer peripheral edges from the left end to the right end on the front and rear sides of the top plate portion 241, respectively. I mean.
In addition, the longitudinal dimension of the first ear piece portion 242 is two pieces located on the front side (the direction side of the arrow A) or the rear side (the side facing the arrow A) of the four corners of the roving group 31 in plan view. The center distance between the rovings 31a and 31a ("dimension Z21" or "dimension Z22" in FIG. 5) is set to be approximately the same.

The first ear pieces 242 and 242 are arranged along the side edge portions 241b and 241b at the center of the side edge portions 241b and 241b on both the front and rear sides of the top plate portion 241, respectively. It is formed integrally with the top plate portion 241.
In other words, the first ear piece portions 242 and 242 are formed along the side edge portions 241b and 241b on both the front and rear sides of the top plate portion 241, respectively, and are outside the side edge portions 241b and 241b on the front and rear sides of the top plate portion 241. It is a band-like ear piece that protrudes by a predetermined dimension toward the front and rear sides, and the longitudinal dimension thereof is the top plate with respect to the left and right dimensions of the top plate part 241 (the vertical dimension in FIG. 5). The dimension is shortened by the corners 241a and 241a at the left and right ends of the part 241 .
In addition, the projecting dimensions of the first ear pieces 242 and 242 to the outside from the side edge parts 241b and 241b on both the front and rear sides of the top plate 241 are the same as those of the first ear pieces 42 and 42.

Next, the second ear piece 243 will be described.
The second ear piece 243 is a part for binding the periphery of the roving group 31 together with the first ear piece 242 described above.
The second ear piece portion 243 is formed in a belt shape extending outward (leftward and rightward) from the side edge portions 241c on the left and right sides of the top plate portion 241.

The extension dimension of the second ear piece portion 243 to the outside is formed to be smaller than the length of each side edge portion 241c on both the left and right sides of the top plate portion 241, and each side edge portion on both the left and right sides of the top plate portion 241. The direction along 241 c is the longitudinal direction of the first ear piece 242.
The second ear piece portions 243 and 243 are configured to be bendable along the side edge portions 241c and 241c on the left and right sides of the top plate portion 241.

The left and right side edge portions 241c and 241c of the top plate portion 241 are straight lines excluding the front and rear corner portions 241a of the outer peripheral edge portion from the front end to the rear end on the left and right sides of the top plate portion 241, respectively. It means the part.
The length of the second ear piece 243 in the longitudinal direction is the size of the side edge 241c on the right side (one side in the direction orthogonal to the arrow A) or the left side (in the direction orthogonal to the arrow A) of the top plate 241. It is set to be sufficiently longer than the dimension of the side edge portion 241c on the other side.

The second ear piece portions 243 and 243 are arranged along the side edge portions 241c and 241c on the left and right sides of the top plate portion 241, respectively, in the central portion in the longitudinal direction of the top ear portion. 241 and a single unit.
As a result, both end portions in the longitudinal direction of each second ear piece portion 243 (hereinafter referred to as “extending end portion 243a”) face the extending direction of the side edge portion 241c on the right side or the left side of the top plate portion 241. Extended.
In other words, the second ear piece portions 243 and 243 are respectively formed along the left and right side edge portions 241c and 241c of the top plate portion 241, and from the left and right side edge portions 241c and 241c of the top plate portion 241. It is a band-like ear piece that protrudes to the outside (left and right) by a predetermined dimension, and both ends in the longitudinal direction have longitudinal dimensions of the second ear pieces 243 and 243 in front of and behind the top plate 241. It extends along the longitudinal direction of the second ear piece portions 243 and 243 (the direction along the left and right side edges of the top plate portion 241) so as to be longer than the dimension (the dimension in the left and right direction in FIG. 5). ing.
That is, the second ear piece portions 243 and 243 are formed such that the lengthwise dimension thereof is the size of the side edge portions 241c and 241c on the left and right sides of the top plate portion 241 ("dimensions Z23 and Z24" in FIG. 5). It has a main body part, and extended end parts 243a and 243a extending from the main body part in the front-rear direction by a predetermined dimension ("dimension X21" in FIG. 5).

Here, in the side edge portions 241c and 241c on both the left and right sides of the top plate portion 241, between the extended end portions 243a and 243a of the second ear piece portions 243 and 243 and the corner portions 241a and 241a of the top plate portion 241. A notch is formed.
As a result, the length dimension of the side edge portions 241c and 241c on the left and right sides of the top plate portion 241 that is the connection portion between the top plate portion 241 and the second ear piece portion 243 is the front right corner of the roving group 31. The center distance between the two rovings 31a and 31a located at the corner 241a and the rear right corner 241a ("dimension Z23" in FIG. 5), or the front left corner 241a and the rear left corner of the roving group 31 The center distance between the two rovings 31a and 31a located at 241a ("dimension Z24" in FIG. 5) is approximately the same.
In addition, the longitudinal dimension (“dimension X21” in FIG. 5) of each extending end 243a of the second ear piece 243 is arranged at the four corners of the roving group 31 in plan view. It is set to be sufficiently longer than the length dimension ("dimension Y21" in FIG. 5) obtained by dividing the circumference into four equal parts (X21> Y21).

  As described above, the upper surface protection plate 204 in another embodiment extends outward from each side edge 241c (or 241b) around the top plate 241 and extends to the side edge 241c (or 241b). A plurality of strip-shaped ear pieces (more specifically, a first ear piece part 242 and a second ear piece part 243) formed so as to be bendable along the first ear piece parts adjacent to each other. 242 and the second ear piece portion 243, the second ear piece portion (one ear piece portion) 243 has an end portion on the first ear piece portion (the other ear piece portion) 242 side at the second ear piece portion. An extension end portion 243a extending in the direction along the side edge portion of the (one ear piece portion) 243 is formed.

And the upper surface protection board 204 which consists of such a structure is constructed | assembled in a box shape according to the following procedures.
First, the upper surface protection plate 204 is placed on the upper surface of the roving group 31 placed on the base 2, and the first ear piece portion (the other ear piece portion) 242 of the placed upper surface protection plate 204. 242 and the second ear piece portion (one ear piece portion) 243 and 243 along the side edge portions 241b and 241b and the side edge portions 241c and 241c in the same direction side (lower side). Fold it in.
As a result, the first ear piece portions 242 and 242 and the second ear piece portions 243 and 243 are respectively suspended along the front and rear sides and the left and right side edge portions 241b, 241b, 241c, and 241c of the top plate portion 241. The

After the first ear piece portions 242 and 242 and the second ear piece portions 243 and 243 are bent and dropped with respect to the top plate portion 241, each second ear piece portion (one ear piece portion) 243 is extended. The end portions (extended end portions) 243a and 243a are curved so as to be in close contact with each other around the corners at the upper part of the roving group 31.
At this time, as described above, the length of each extended end 243a of the second ear piece 243 is longer than the length obtained by dividing the circumference of the outer peripheral surface of each roving 31a into four equal parts. The tip end portion of the extended end portion 243a somewhat protrudes from the outer peripheral surface of each of the rovings 31a divided into four equal parts.

  And in each extension end part 243a of the 2nd ear piece part 243, about the area | region protruded from the outer peripheral surface of each roving 31a (henceforth "stacking allowance"), the said extension end part The first ear piece portion 242 adjacent to 243a is overlapped with the back surface (the surface on the side where the first ear piece portion 242 is folded).

Thus, in the state where the “overlap” of the second ear piece portion 243 is overlapped with the end portion of the first ear piece portion 242, the overlapping position of the first ear piece portion 242 and the second ear piece portion 243 is determined. Fix firmly with adhesive tape.
Thereby, the upper surface protection plate 204 is constructed in a box shape.

DESCRIPTION OF SYMBOLS 1 Roving accumulation | aggregation | packaging body 2 Base 3 Roving accumulation | aggregation 4 Upper surface protection board 31 Roving group 31a Roving 41 Top plate part 42 1st ear piece part (other ear piece part)
43 Second ear piece (one ear piece)
43a Extension end

Claims (5)

The base,
On the base, a roving accumulation configured by stacking a plurality of roving groups composed of a plurality of rovings arranged in double rows and double columns;
An upper surface protection plate placed on the upper surface of the roving stack;
A roving accumulator package comprising:
The upper surface protection plate is
A top plate portion formed in a rectangular plate shape substantially the same shape as the upper surface of the roving accumulation,
A plurality of strip-shaped ear pieces that extend outward from the respective side edge portions around the top plate portion and are formed to be bendable along the side edge portions;
Have
In the adjacent ear pieces,
An extension end portion extending in a direction along the side edge portion of the one ear piece portion is formed at an end portion on the other ear piece portion side of the one ear piece portion,
The one ear piece portion and the other ear piece portion are each bent in the same direction side with respect to the top plate portion,
Extending end portion extended in the one ear piece is, is curved so as to be in close contact along the periphery of the roving integrated product is fixed to the front SL other ears,
The upper surface protection plate is
Each of the rovings constituting the roving stack is placed on the upper surface of each roving group ,
A roving accumulator package characterized by the above. In the upper surface protection plate,
The extended end of the one ear piece is
In the fixing point with the other ear piece,
Formed with a length that has an overlap allowance,
The roving accumulation | aggregation | packing body of Claim 1 characterized by the above-mentioned. In the upper surface protection plate,
The four corners of the top plate are
It is formed in an arc shape along the outer peripheral surface of each roving, which is arranged at the four corners in plan view of the roving stack.
The roving accumulation | aggregation | packing body of Claim 1 or Claim 2 characterized by the above-mentioned. In each ear piece,
Each of the extending end portions is formed on one side of the ear piece portion in the direction along the side edge portion,
The roving accumulation | aggregation | packing body as described in any one of Claims 1-3 characterized by the above-mentioned. A stretch film is wound around the roving accumulation.
The roving accumulation | aggregation | packing body as described in any one of Claims 1-4 characterized by the above-mentioned.

Images