JP2002308537A - Corrugated fiberboard reel and method of manufacturing the reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem with a conventional corrugated fiberboard reel so formed that a connection part such as a plurality of projections and return pieces are provided at both ends of a drum part and connected to flanges that a strength is low, weight is increased when the strength is increased, assembly is difficult, and the drum part is hard to be deformed in any diameter. SOLUTION: This corrugated fiberboard reel comprises the drum part formed by winding, thereon, a single-faced corrugated fiberboard by multiple turns and the outer flanges formed by sticking outer plates to externally fitting rings with adhesive agent. The outer flanges disposed at both ends of the drum part are reinforced by bridging the reinforcement members over a plurality of through holes provided in the outer flanges.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a corrugated cardboard reel and a method of manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as reels for winding linear or band-like materials, those made of cardboard which can be easily disposed after use have been widely used. There is. In general, it is composed of a cylindrical body and disk-shaped flanges attached to both ends of the body, and various measures are taken for attaching the body and the flange.

[0003] Usually, a method of forming a reel shape by providing connection portions at both ends of a body portion and fixing the connection portions to a flange is widely performed. The connection portion is, for example, a projection inserted into a hole formed in the flange, a plurality of folded pieces adhered to the flange, or the like.

[0004]

However, there are various problems in the corrugated cardboard reel as described above. For example,
The structure in which the protrusion is provided at the end of the body has a disadvantage that the strength is extremely low because only the protrusion connects the body and the protrusion. In order to solve this, it is necessary to increase the wall thickness of the trunk, which increases the weight and necessitates the use of useless materials.

[0005] In the case of a folded piece, since a plurality of cuts are made at the end of the body to be folded, it takes a considerable amount of time and has a disadvantage that the fixing position of the flange is not stable. In addition, if the folded piece is exposed, the wound linear or band-shaped body may be caught, and a separate member for covering the folded piece must be provided to reinforce the folded piece. In addition, there are problems that the number of steps for forming cuts and projections on the cardboard increases, and that the corrugated cardboard cannot be formed to an arbitrary diameter.

[0006]

In view of the above problems, the present inventor has made the present invention as a result of intensive studies. And a cylindrical body formed by spirally winding the outer body and an outer plate and an outer ring are fixed with an adhesive, and both end surfaces of the body are fixed to the outer plate, and the outer peripheral surface of the body is formed. And an outer flange fixed to the outer fitting ring with an adhesive,
The present invention is characterized in that the outer flanges at both ends are reinforced by a reinforcing member spanning a plurality of through holes formed in the outer flange.

According to the invention of the method, a reinforcing member is attached to an upper portion of an insertion rod erected on a pedestal, and an outer flange in which an outer plate and an outer fitting ring are fixed with an adhesive is attached to the outer plate and the outer fitting ring. The through-hole pierced through the insertion rod is placed on the pedestal,
Next, one end surface of a cylindrical body formed by winding a single-sided cardboard in multiple spirals is fixed to an outer plate of the outer flange, and an outer peripheral surface of the body to the outer fitting ring with an adhesive, After fixing a separate outer flange having a through hole passing through the insertion rod to the other end surface of the body with an adhesive, the reinforcing member bridged over the outer flange at both ends is removed from the outer flange by the outer flange. It is to adhere on the outer surface side of the plate.

[0008] Here, the "body" referred to in the present specification is:
Long linear bodies and strips (hereinafter referred to as "linear bodies, etc.")
Refers to the shaft of a corrugated cardboard reel for winding such. In the present invention, this is formed of single-sided cardboard. By winding the single-faced cardboard in multiple spirals, the strength of the trunk can be further increased. Usually, it is formed by winding about 3 to 6 times. Generally, the overlapping portion is entirely fixed with an adhesive, but may be partially formed. In this case, the end of the outer peripheral surface side is flattened by crushing the step or partially cutting out the corrugated stencil sheet. Further, by covering the end portion with an adhesive tape or the like, a flatter surface can be obtained. Single-sided corrugated cardboard is generally classified from A steps having a step height of about 5 mm to G steps having a step height of about 0.5 mm, and the number of steps per unit length increases as the step height decreases. As the single-sided corrugated cardboard forming the body of the reel as in the present invention, those having a step height of about 1.5 mm or about 2.6 mm and a B step are preferred.

The "outer flange" is constituted by a corrugated cardboard outer plate and an outer fitting ring, and is provided at both ends of a body to form a flange of a reel. In this case, the outer plate is a member located on both end surfaces of the trunk, and the outer fitting ring is a member located on the outer peripheral surface of both ends of the trunk. On the outer flange,
Usually, a hole for inserting a shaft of a rotating device is provided at the center of the wire when winding a linear body or the like. In the present invention, a plurality of through holes are further formed around the hole.

[0010] The outer flange may be provided with an inner fitting member which is fitted into the inside of the body to support and fix the body from the inner peripheral surface. By providing the inner fitting member, a circular gap is formed between the outer fitting ring and the outer fitting ring. The end of the body is fitted into the gap and fixed with an adhesive. Of course, the inner circumference of the outer fitting ring and the outer circumference of the inner fitting member need not necessarily be circular,
It may be a polygon. The outer plate, the outer fitting ring, and the inner fitting member are formed of double-sided corrugated cardboard, double-sided corrugated cardboard, or the like, and one or more sheets are used in an overlapping manner.

The "reinforcing member" refers to a member which bridges the through-holes of the outer flanges provided at both ends of the body and fixes the ends to reinforce the outer flange with respect to the body. The reinforcing member is, for example, an adhesive tape, a PP band (polypropylene band), a string or a thread, or the like. When these are bridged over the outer flange, they are usually passed through the trunk, but there is no problem outside the trunk. In addition, since the body is formed by spirally winding a single-sided cardboard in multiple layers, a reinforcing member such as a PP band or a thread may be sandwiched between the single-sided cardboards. In this case, the reinforcing members protrude from both end surfaces of the body. As a method of fixing the end of the reinforcing member, in the case of an adhesive tape, the reinforcing member is attached to the outer plate of the outer flange. For other components, you can attach a separate fixture,
This is performed by a method such as binding the reinforcing members together or connecting them with a fixture.

The "partition ring" is a member made of corrugated cardboard for externally fitting a body part between outer flanges to partition a part to be wound into a plurality of parts. In the present invention, in order to fix the partition ring, not only the inner peripheral portion thereof is fixed to the body portion with an adhesive, but also a separate outer fitting body portion is provided on the body portion, and the end portion thereof is also provided with an adhesive. To fix. The outer fitting body is provided inward by the thickness of the outer fitting ring in order to fit the end of the body into the outer fitting ring, and the end is bonded to the outer fitting ring.

The partition by the partition ring is provided not only to make a plurality of winding portions of the linear body or the like, but also to secure a part for accommodating parts attached to the linear body or the like. In this case, a notch is provided in a part of the partition ring.
The shape of the partition ring is almost the same as the external fitting ring,
The outer diameter may be slightly smaller than the outer fitting ring.

The "pedestal" is used when assembling the corrugated cardboard reel according to the present invention, and is assembled while the reinforcing member is inserted into the through hole of the outer flange. For this reason, an insertion rod for attaching the reinforcing member to the pedestal is provided upright. When the through-hole of the outer flange is placed on the pedestal by passing the through-hole of the outer flange by attaching the reinforcing member to the insertion rod, the reinforcing member is inserted into the through-hole. In this way, the outer flange, the body, and the outer flange are assembled in this order, and at the same time, the reinforcing member is inserted into the through hole and bridged between the outer flanges at both ends. Then, the reinforcing member is fixed on the outer surface side of the outer flange to complete the corrugated cardboard reel of the present invention.

One or more insertion rods are provided on the base. When the number of insertion rods is smaller than the number of through holes formed in the outer flange, a reinforcing member is attached to the insertion rod to assemble the reel body, and then the reel body is once removed from the insertion rod. In this case, the reinforcing member bridged over the outer flange is fixed or temporarily fixed so as not to come off. Then, another reinforcing member is attached to the insertion rod again, and then the through-hole of the assembled reel body, through which the reinforcing member is not inserted, is inserted through the insertion rod to insert another reinforcing member. In this way, the reinforcing member is inserted into all the through holes and fixed to complete. Further, the reinforcing member inserted into the through hole may be directly used as another through hole. In this case, it is also possible to insert all the through holes by sewing with one reinforcing member.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments of the invention shown in the drawings.

FIG. 1 is a corrugated cardboard reel 1 according to the present invention.
In this embodiment, an outer flange 3 formed of double-faced cardboard is provided at both ends of a cylindrical body 2 formed of single-faced cardboard. The trunk portion 2 of this example is a single-sided cardboard having a height of 1.5 mm, referred to as an E-stage, and having 95 peaks per 30 cm, wound in a spiral shape five times and formed into a cylindrical shape. . The end portion on the outer peripheral surface side is crushed and attached, and an adhesive tape is attached to this portion to make the surface flat. The outer flange 3 is formed by bonding an outer plate 31, an outer fitting ring 32, and an inner fitting member 33 formed of double-sided corrugated cardboard with an adhesive. Both ends of the body 2 are inserted into gaps between the outer fitting ring 32 and the inner fitting member 33, and abutment portions thereof are fixed with an adhesive.

The trunk portion 2 and the outer flange 3 are connected to the outer flanges 3 at both ends, and a reinforcing member 4 fixed on the outer surface side of the outer plate 31 is provided.
Is reinforced. The reinforcing member 4 of this embodiment is a paper adhesive tape, which is passed through a through hole 34 formed in the outer flange 3 and the inside of the body 2 as shown in FIG. It is stuck and fixed to the outer plate 31. The position where the through hole 34 is provided in this example is the inner peripheral surface portion of the body 2.
Therefore, the inner fitting member 33 has a shape in which the outer peripheral surface is partially cut away.

FIG. 3 shows another embodiment of the reinforcing member 4 used for the corrugated cardboard reel 1 according to the present invention.
FIG. 7A shows a case where the PP band 41 is used. The PP band 41 is formed by inserting one band into two U-shaped through holes (a total of four) in a U-shape, and binding and fixing both ends of the band with a binding device 42. FIG. 14B shows the case where the string 43 is used. As shown in the figure, the string 43 is fixed by tying both ends of the string to fixing members 44, respectively.

FIG. 4 shows an example of an embodiment of a method of manufacturing a corrugated cardboard reel according to the present invention, wherein a pedestal 5 having two insertion rods 51 erected as shown in FIG. assemble. The pedestal 5 is provided with a roll mounting portion 53, which rotatably supports the roll of the paper adhesive tape 52. The figure shows an adhesive tape 52 attached to the upper end of each insertion rod 51.
Is shown hanging down along the insertion rod 51, and the adhesive surface is a surface opposite to the insertion rod 51.

In this state, the two through holes 34 on the diagonal line of the four of the outer flange 3 are passed through the respective insertion rods 51 and mounted on the pedestal 5 as shown in FIG. Then, as shown in FIG. 3 (c), the body 2 and another outer flange 3 are fitted into the insertion rod 51 as shown in the figure, and the adhesive tape 52 as a reinforcing member is bridged between the outer flanges 3 at both ends. The completed reel body is assembled. In this state, the adhesive tape 52 attached to the insertion rod 51 is removed and attached to the outer plate 31 of the outer flange 3. Next, the adhesive tape 52 hanging down from the reel body is cut into appropriate lengths, and the reel body is inserted into the insertion rod 51.
From each other, and cut each of the cut adhesive tapes 52 into the outer flange 3.
Is attached to the outer plate 31. Perform the same operation as above,
The adhesive tape 52 is inserted into and fixed to the other two through holes 34, and the corrugated cardboard reel 1 is completed.

FIG. 5A shows another embodiment of a corrugated cardboard reel 11 according to the present invention, in which a partition ring 6 is provided between outer flanges 3. This reel 1
1 is for winding an optical fiber cable,
The body 2 is partitioned by a partly cut-off partition ring 6 as a portion for storing a connector (not shown) attached to the start end and the end of the optical fiber cable. In order to fix the partition ring 6 to the body 2, in the present invention, an outer fitting body 61 is provided on a part of the body 2, and the inner peripheral portion of the partition ring 6 is formed between the body 2 and the outer fitting body 61. It is fixed to the side end with an adhesive.

The reel 11 has substantially the same structure as the above-described reel 1 as shown in FIG. 2B, but in this example, the inner fitting member 33 is formed by laminating two double-faced cardboards, and the outer fitting body 61 is formed. It is located inside. The partition ring 6 of this example is formed by laminating two double-faced cardboards.

The method of manufacturing the reel 11 is the same as the method shown in FIG. However, when the partition ring 6 is provided, the outer fitting body 61 is provided in advance from the end of the body 2 by the thickness of the outer fitting ring 32, and the outer flange 3 placed on the base 5 is provided.
Then, the body 2 and the outer fitting body 61 are fixed with an adhesive. Then, the partition ring 6 is fixed to the body 2 and the externally fitted body 61 with an adhesive, and the outer flange 61 is attached to the body to complete the reel body. As another example of this case, the partition ring 6
May be attached to the trunk 2 in advance.

[0025]

As described above, the corrugated cardboard reel according to the present invention has a cylindrical body formed by spirally winding single-sided corrugated cardboard, and an outer plate and an outer fitting ring fixed to each other with an adhesive. A plurality of through-holes formed in the outer flange, the outer flange being fixed to both end surfaces of the body by the outer plate, the outer peripheral surface of the body by the outer fitting ring, and the adhesive. By reinforcing the outer flanges at both ends with the reinforcing members spanning the holes, extremely high strength as a corrugated cardboard reel can be obtained without providing connection portions such as protrusions and folded pieces at both ends of the body. In particular, since the body is formed by spirally winding single-faced cardboard in multiple layers, the strength is high, and a thin and heavy linear body such as an optical fiber cable can be reliably wound. In addition, the assembling is simple, the assembling can be performed anywhere, and a body having an arbitrary diameter can be formed irrespective of the position of the projection or the position of the cut for forming the folded piece. Furthermore, since it is made of cardboard, it is easy to recycle, and there is an effect that incineration can be performed without any problem.

In the method for manufacturing a corrugated cardboard reel according to the present invention, a reinforcing member is attached to an upper portion of an insertion rod erected on a pedestal, and an outer flange having an outer plate and an outer ring fixed with an adhesive is attached to the outer plate. The through-hole formed in the outer fitting ring is passed through the insertion rod, and is placed on the pedestal. Then, one end surface of a cylindrical body formed by spirally winding single-sided cardboard in a spiral manner is attached to the outer flange. The outer peripheral surface of the body is fixed to the outer fitting ring with an adhesive, and a separate outer flange having a through hole passed through the insertion rod is fixed to the other end of the body with an adhesive. After that, by fixing the reinforcing member bridged over the outer flanges at both ends on the outer surface side of the outer plate of the outer flange, the reinforcing member can be easily and securely mounted on the reel body, and assembling is performed. Has an extremely useful effect in practical use, such as being able to form a simple and high-strength reel. Than it is.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a cardboard reel according to the present invention.

FIG. 2 is a longitudinal sectional view of the corrugated cardboard reel shown in FIG.

FIGS. 3A and 3B are perspective views showing another example of the embodiment of the reinforcing member.

4A to 4C are longitudinal sectional views showing an assembling procedure of a method of manufacturing a corrugated cardboard reel according to the present invention.

FIG. 5 shows another example of the embodiment of the cardboard reel according to the present invention, wherein (a) is a perspective view and (b) is (a).
FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Corrugated cardboard reel 11 Corrugated cardboard reel (with a partition ring) 2 Body 3 Outer flange 31 Outer plate 32 Outer fitting ring 33 Inner fitting member 34 Through hole 4 Reinforcing member 41 PP band 42 Binding tool 43 String 44 Fixing tool 5 Base 51 Insertion rod 52 Adhesive tape 53 Roll support 6 Partition ring 61 Outer body

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noboru Sakamoto 1-5-54 Hirabayashi-minami, Suminoe-ku, Osaka City Inside Daiki Kogyo Co., Ltd. No. Okazaki Sangyo Co., Ltd. (72) Inventor Kunio Takahashi 1-5 Nishikawara Kitamachi, Ibaraki City, Osaka Prefecture Inside Daiwa Shiki Co., Ltd. 3F058 AA01 AA02 AA03 AB01 AB02 AB03 AC01 AC11 AC12 AC15 AC17 BA02 BB03 CA11 CA13 DA04 DB05 DC01

Claims (8)

[Claims] 1. A cylindrical body formed by spirally winding single-sided cardboard in multiple layers, an outer plate and an outer ring are fixed with an adhesive, and both end surfaces of the body are attached to the outer plate. An outer flange fixed on the outer fitting ring to the outer fitting ring with an adhesive, and a reinforcing member spanning a plurality of through holes formed in the outer flange. Corrugated cardboard reel with reinforced flange. 2. The corrugated cardboard reel according to claim 1, wherein the outer flange is formed by fixing an inner fitting member forming a gap for fitting an end of the body portion with the outer fitting ring with an adhesive. . 3. An outer fitting provided between the outer flanges at both ends by bonding an inner peripheral surface to the body with an adhesive, and being provided inward from one end of the body by the thickness of an outer fitting ring. 3. The corrugated cardboard reel according to claim 1, wherein a partition ring fixed by an adhesive is provided on an end face of the body. 4. A through hole formed by attaching a reinforcing member to an upper portion of an insertion rod erected on a pedestal and fixing an outer flange to which an outer plate and an outer fitting ring are fixed with an adhesive, in the outer plate and the outer fitting ring. Is passed through the insertion rod and placed on the pedestal, and then one end surface of a cylindrical body formed by winding single-sided corrugated cardboard in multiple spirals is attached to the outer plate of the outer flange, and the outer periphery of the body is A surface is fixed to the outer fitting ring with an adhesive, and a separate outer flange having a through hole passed through the insertion rod is fixed to the other end surface of the body with an adhesive, and then the outer flange at both ends is hung over the outer flange. A method of manufacturing a corrugated cardboard reel, comprising fixing the transferred reinforcing member on the outer surface of the outer plate of the outer flange. 5. The corrugated cardboard reel according to claim 4, wherein the outer flange is formed by fixing an inner fitting member forming a gap for fitting an end of the body portion with the outer fitting ring with an adhesive. Manufacturing method. 6. The body has an outer fitting body provided inward from one end by the thickness of the outer fitting ring, and one end of the outer fitting body is connected to the outer fitting ring. 6. An inner peripheral part of the partition ring is fixed to the other end of the body part and the outer fitting body part with an adhesive after being fixed to the outer flange by attaching to the outer flange. Of manufacturing corrugated cardboard reels. 7. The method for manufacturing a corrugated cardboard reel according to claim 4, wherein a plurality of insertion rods are provided on the pedestal. 8. After the reinforcing member is bridged over the outer flanges at both ends, the reinforcing member is attached to the insertion rod again, and a through-hole other than the through-hole through which the reinforcing member is bridged first is passed through the insertion rod.
8. The method for manufacturing a corrugated cardboard reel according to claim 4, wherein the reinforcing member is bridged between the outer flanges at both ends.