JP2022045084A - Carrier tape packaging box, and packaging body using the same and packaging method of wound body of carrier tape - Google Patents

Abstract

To provide a carrier tape packaging box which has an excellent impact absorption property while it is convenient and low cost, and to provide a packaging body using the same and a packaging method of a wound body of a carrier tape.SOLUTION: A carrier tape packaging box 1 stores a wound body 100 in which a carrier tape 110 is wound around a reel. The carrier tape packaging box 1 includes inner flaps 12, 13 raised toward the inside from end parts of an inner wall. The inner flaps 12, 13 can hold the wound body 100 by coming into contact with the wound body 100 stored inside the carrier tape packaging box 1. The carrier tape packaging box 1 is provided in which flap length L of the inner flaps 12, 13, which is the length from root end parts 14, 15 of the inner flaps 12, 13 to contact end parts 16, 17 with the wound body 100, is equal to or greater than (√2-1) times and equal to or less than 1 time of a radius R of the wound body 100.SELECTED DRAWING: Figure 2

Description

The present invention relates to a packing box for carrier tape, and a packing body using the packing box and a method for packing a wound body of carrier tape.

When transporting electronic parts and the like of precision equipment to a mounting machine, carrier tape is used to store the electronic parts and the like. As the carrier tape, for example, one having an emboss on the surface of the base material for accommodating parts is used. The recess of this embossing is used as a parts storage part (pocket), and electronic parts and the like are stored in the recess, and the cover tape is used to seal the electronic parts from above. Then, the carrier tape is wound on a reel or the like to form a winding body, which is stored in a carrier tape packing box such as corrugated cardboard, and is transported or stored (see, for example, FIG. 3 of Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-001689

However, when the carrier tape winding body is stored in the carrier tape packing box for transportation or storage, external impacts such as vibration and drop impact are applied to the carrier tape packing box, resulting in loosening of the carrier tape winding. And roll collapse occurs. This causes twisting and warping of the carrier tape, which causes a problem that a problem occurs when the carrier tape is used at the transport destination. On the other hand, a simple and low-cost packing method for a carrier tape packing box and a carrier tape winding body is desired.

The present invention has been made in view of such circumstances, and is a packaging box for a carrier tape having excellent shock absorption while being simple and low cost, and a packaging body and a wound body of the carrier tape using the same. The main purpose is to provide a packing method for.

As a result of diligent studies to achieve the above-mentioned object, the present inventor provides an inner flap erected inward from the end of the inner wall of the carrier tape packing box, and the inner flap is used for the carrier tape packing. It was found that the winding body can be held by bringing it into contact with the winding body stored inside the box. As a result of diligent research based on such findings, the present invention has been completed.

That is, the present invention is as follows.

(1)
A packing box for carrier tape that stores a winding body in which the carrier tape is wound on a reel.
The carrier tape packaging box has an inner flap erected inward from the end of the inner wall thereof.
The inner flap can hold the winding body by abutting on the winding body housed inside the packing box for carrier tape.
The flap length of the inner flap, which is the length from the root end of the inner flap to the contact end with the winding body, is (√2-1) times or more and 1 times the radius of the winding body. Is below,
It is a packing box for carrier tape.
(2)
The inner flap is
A first inner flap erected from one end of the inner wall,
A second inner flap erected from the end of the inner wall facing the one end,
Equipped with
The abutting end portion of the first inner flap and the abutting end portion of the second inner flap make it possible to hold the winding body.
It is a packing box for carrier tape of (1).
(3)
The inner flap is formed with a holding groove for receiving the winding body at the contact end portion with the winding body.
It is a packing box for carrier tape of (1) or (2).
(4)
Since the inner flap is bendable, the flap length can be adjusted.
It is a packing box for a carrier tape according to any one of (1) to (3).
(5)
The inner flap
An inner flap body that is erected inward from the inner wall of the carrier tape packing box and is in contact with the winding body.
A movement restricting unit that is erected from the inner flap body and prevents contact between the inner flap body and the inner wall.
To prepare
It is a packing box for a carrier tape according to any one of (1) to (4).
(6)
The carrier tape packing box according to any one of (1) to (5), and
The winding body of the carrier tape housed in the carrier tape packing box, and
Equipped with
The winding body is held by the abutting end of the inner flap.
It is a carrier tape packing body.
(7)
It is a packing method of the winding body of the carrier tape, in which the winding body in which the carrier tape is wound on a reel is stored in a packing box for the carrier tape.
The carrier tape packing box is
With an inner flap that can be erected inward from the end of its inner wall,
The inner flap can hold the winding body by abutting on the winding body housed inside the packing box for carrier tape.
The flap length of the inner flap, which is the length from the root end of the inner flap to the contact end with the winding body, is (√2-1) times or more and 1 times the radius of the winding body. Is below
The inner flap is erected inward from the end portion of the inner wall with respect to the winding body housed in the carrier tape packing box, and the contact end portion is applied to the winding body. 2.
This is a packing method for the winding body of the carrier tape.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a packing box for a carrier tape which is simple and low cost but has excellent shock absorption, and a packing body and a winding body of the carrier tape using the packing box.

FIG. 1 is a perspective view for explaining an example of a wound body of a carrier tape. FIG. 2 is a top view showing a state in which the carrier tape winding body is housed in the first embodiment of the carrier tape packing box. FIG. 3 is a front sectional view taken along the line AA of FIG. FIG. 4 is a schematic view showing the relationship between the inner flap and the carrier tape winding body. FIG. 5 is a front sectional view showing a state in which the carrier tape winding body is housed in the second embodiment of the carrier tape packing box. FIG. 6 is a schematic view showing the relationship between the inner flap and the carrier tape winding body in the third embodiment of the carrier tape packing box. FIG. 7 is a schematic view showing the relationship between the inner flap and the carrier tape winding body in the fourth embodiment of the carrier tape packing box. FIG. 8 is a top view of a state in which the carrier tape winding body is housed in the conventional carrier tape packing box. FIG. 9 is a front sectional view taken along the line BB of FIG.

Hereinafter, embodiments for carrying out the present invention (hereinafter, simply referred to as “the present embodiment”) will be described in detail. The following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents. The present invention can be appropriately modified and carried out within the scope of the gist thereof.

In the drawings, the same elements are designated by the same reference numerals, and duplicate description in each embodiment will be omitted. Further, for convenience, the positional relationship such as up, down, left, and right shall be based on the positional relationship shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the ratios shown.

<Carrier tape winding body>

A winding body of the carrier tape stored in the carrier tape packing box will be described.

FIG. 1 is a perspective view for explaining an example of a wound body of a carrier tape.

As the carrier tape 110 and its winding body 100, known ones can be used. For example, the winding body (hereinafter, may be simply abbreviated as "winding body") 100 of the carrier tape 110 on which the long carrier tape 110 is wound on the reel is the upper flange 120 and the lower of the reel. It has a flange 130. The upper flange 120 has an upper flange surface 140 and an upper flange side surface 160. The lower flange 130 has a lower flange surface 150 and a lower flange side surface 170. A central hole H for inserting the winding body 100 into the winding device (not shown) is formed through from the upper flange 120 to the lower flange 130.

Although not shown, the carrier tape 110 is formed with a plurality of embosses for accommodating parts. Further, if necessary, a feed hole for use for transport or positioning, an inspection hole for detecting or inspecting a component housed in the emboss, and the like may be formed on the carrier tape 110. After the parts are housed in the embossed carrier tape 110, they are sealed with a cover tape (not shown).

The components housed in the carrier tape 110 are not particularly limited, and examples thereof include various electronic components such as ceramic capacitors, resistors, IC chips, inductors, light emitting diodes (LEDs), shield members, connectors, and electrical components. ..

The length (tape length) in the longitudinal direction of the carrier tape 110 is not particularly limited, but is usually 200 m or more. The lower limit of this length is preferably 400 m or more. The upper limit of this length is preferably 2000 m or less. As described above, the carrier tape 110 having a long tape length is liable to collapse or loosen when wound on a reel. When the winding body 100 of the carrier tape 110 is stored in a cardboard box, a plastic case box, or the like, it tends to easily collapse or loosen due to vibration from the outside. Although the details of this point will be described later, since the carrier tape packing boxes 1, 2, 3 and 4 according to the present embodiment are excellent in shock absorption, even the winding body 100 of such a carrier tape 110 may be used. It is possible to effectively prevent unwinding and loosening of winding.

The length (tape width) of the carrier tape 110 in the width direction is not particularly limited, but is usually 4 mm or more and 80 mm or less. The lower limit of this length is preferably 8 mm or more, more preferably 12 mm or more, and further preferably 16 mm or more. The upper limit of this length is preferably 72 mm or less, more preferably 56 mm or less, and further preferably 44 mm or less.

The material of the carrier tape 110 is not particularly limited, and for example, polystyrene, polyethylene terephthalate, polycarbonate, polyethylene, polypropylene, polyvinyl chloride, polyurethane, polytetrafluoroethylene, polyamide, acrylonitrile butadiene styrene resin, styrene acrylonitrile copolymer, acrylic resin and the like. Thermoplastic resin can be used.

Further, the shape of the winding body 100 in the top view is substantially circular. The radius R of the winding body 100 (for example, the radius of the upper flange 120, see FIG. 4) is not particularly limited, but can be determined in consideration of the tape length of the carrier tape 110 and the like. This radius R is usually 80 cm or more and 400 cm or less. The lower limit of this radius is preferably 160 cm or more, more preferably 210 cm or more. The upper limit of this radius is preferably 340 cm or less, more preferably 290 cm or less.

<Packing box for carrier tape>

First, a conventional packaging box for carrier tape will be described.

FIG. 8 is a top view of a state in which the carrier tape winding body is housed in a conventional carrier tape packing box, and FIG. 9 is a front sectional view taken along the line BB of FIG.

The carrier tape packing box 200 is a packing box for storing two winding bodies 100 of the carrier tape 110. The carrier tape packing box 200 includes an outer box 210 constituting the frame body, a reinforcing plate 220 arranged on the inner wall side of the outer box 210, and a partition plate 290. FIG. 8 shows a state in which the carrier tape packing box 200 containing the two winding bodies 100 is viewed from the upper flange surface 140 of one winding body 100. Then, as shown in FIG. 9, the upper flange 120 of one winding body 100 and the lower flange 130 of the other winding body 100 face each other via the partition plate 290 of the outer box 210. The body winding body 100 is housed in the carrier tape packing box 200.

Since the winding body 100 housed in the carrier tape packing box 200 slightly moves the gap between the winding body 100 and the outer box 210 during transportation, the carrier tape 110 may be unwound or loosened. Therefore, stoppers 230 and 240 are provided in order to position the winding body 100 at the time of storage. Specifically, the reinforcing plate 220 is bent at the first bent portion 250 that abuts on the left end portion of the inner wall of the outer box 210 to provide the first stopper 230. Then, the second stopper 240 is provided by bending at the second bent portion 260 that abuts on the right end portion of the inner wall of the outer box 210. The winding body 100 is placed in the substantially center of the reinforcing plate 220 (see region P6) by the first stopper end 270 of the first stopper 230 and the second stopper end 280 of the second stopper 240. It is something to try.

However, even if such stoppers 230 and 240 can suppress the fine movement of the winding body 100 to some extent, the position of the winding body 100 is insufficient, so that the carrier tape due to vibration during transportation, drop impact, or the like. It is not possible to sufficiently suppress the unwinding and loosening of the 110. As described above, the conventional carrier tape packing box 200 has a problem that the shock absorption from the outside is insufficient.

Subsequently, a packing box for carrier tape according to this embodiment will be described.

FIG. 2 is a top view of a carrier tape winding body housed in the first embodiment of the carrier tape packing box, and FIG. 3 is a front sectional view taken along the line AA of FIG. 2. FIG. FIG. 4 is a schematic view showing the relationship between the inner flap and the carrier tape winding body.

The carrier tape packing box 1 according to the present embodiment is a packing box for storing two winding bodies 100 of the carrier tape 110. The carrier tape packing box 1 includes an outer box 10 constituting a frame body, a reinforcing plate 11 arranged on the inner wall side of the outer box 10, and a partition plate 18. FIG. 2 shows a state in which the carrier tape packing box 1 in which the two winding bodies 100 are housed is viewed from above the upper flange surface 140 of one winding body 100. Then, as shown in FIG. 3, the upper flange 120 of one winding body 100 and the lower flange 130 of the other winding body 100 face each other via the partition plate 18 of the outer box 10. The body winding body 100 is stored.

The carrier tape packing box 1 according to the present embodiment is a packing box in which the carrier tape 110 stores the winding body 100 wound on a reel, and is erected inward from the end of the inner wall thereof. The flaps 12 and 13 are provided, and the inner flaps 12 and 13 can hold the winding body 100 by abutting on the winding body 100 housed inside the carrier tape packing box 1, and the inner flaps 12 and 13 can be held. The flap length L of the inner flaps 12 and 13, which is the length from the root end portions 14 and 15 of 13 to the contact ends 16 and 17 with the winding body 100, is (√) of the radius R of the winding body 100. 2-1) More than 1 times and less than 1 time. The inner flaps 12 and 13 have a structure that can be erected inward from the inner end of the carrier tape packing box 1.

The reinforcing plate 11 is an arbitrary member, and by arranging the reinforcing plate 11 so as to be in contact with the inner wall of the outer box 10, the strength of the carrier tape packing box 1 can be increased. The reinforcing plate 11 may be a member separate from the outer box 10, or may be a flap extending from the outer box 10.

When the carrier tape packing box 1 includes the reinforcing plate 11, the portion where the reinforcing plate 11 abuts on the end of the inner wall of the outer box 10 (for example, the end where the two inner walls constituting the outer box 10 intersect). The inner flaps 12 and 13 can be formed by bending toward the inside of the outer box 10 (for example, the root ends 14, 15).

As shown in FIG. 2, the inner flaps 12 and 13 are from the first inner flap (left inner flap) 12 erected from one end of the inner wall and from the end of the inner wall facing the one end. A second inner flap (right inner flap) 13 is provided, and a first contact end portion (left contact end portion) 16 of the first inner flap 12 and a second inner flap 13 are provided. It is preferable that the winding body 100 can be held by the second contact end portion (right contact end portion) 17 of the above. The inner flaps 12 and 13 and the winding body 100 are in contact with each other in the regions P1 and P2, and the outer box 10 and the winding body 100 are in contact with each other in the region P3. The round body 100 can be held.

For example, the reinforcing plate 11 is bent at a portion (first root end portion 14) located at the left end portion of the inner wall to form the first inner flap 12. Then, the first inner flap 12 is erected toward the inside of the outer box 10. As a result, a restoring force (see arrow F1) at which the first inner flap 12 tries to return to the inner wall side is generated. As a result, when the first contact end portion 16 comes into contact with the winding body 100 (see region P1), this restoring force acts on the winding body 100, and the first inner flap 12 causes the winding body 100. To hold.

Similarly, the reinforcing plate 11 is bent at a portion (second root end portion 15) located at the right end portion of the inner wall to form the second inner flap 13. Then, the second inner flap 13 is erected toward the inside of the outer box 10. As a result, a restoring force (see arrow F2) at which the second inner flap 13 tries to return to the inner wall side is generated. As a result, when the second contact end portion 17 comes into contact with the winding body 100 (see region P2), this restoring force acts on the winding body 100, and the second inner flap 13 causes the winding body 100. To hold.

Restoring force of the first inner flap 12 (see arrow F1) and restoring force of the second inner flap 13 by holding the winding body 100 from the left and right by the first inner flap 12 and the second inner flap 13. By the action (see arrow F2), the positioning accuracy of the housed winding body 100 is further improved, and the shock absorption from the outside is further improved.

FIG. 4 shows a state in which the carrier tape packing box 1 in which the two winding bodies 100 are housed is viewed from above the upper flange surface 140 of one winding body 100. The flap length L of the inner flap 12 is (√2-1) times or more and 1 time or less of the radius R of the winding body 100. As a result, the flap length L of the inner flap 12 erected from the root end portion 14 becomes a length suitable for holding the winding body 100. The flap length L of the inner flap 12 means the length from the root end portion 14 of the inner flap 12 to the contact end portion 16.

In this respect, in the conventional packing box 200 for carrier tape described above, the reinforcing plate 220 is provided with the first stopper end portion 270 of the first stopper 230 and the second stopper end portion 280 of the second stopper 240. The winding body 100 is placed in the substantially center (see region P6). Therefore, unlike the inner flap 12 of the present embodiment, the stopper 230 of the conventional carrier tape packing box 200 is not erected from the wall surface of the outer box 10 but is in contact with the wall surface. Due to such a difference in function, the length of the stopper 230 is usually not a length of (√2-1) times or more and 1 times or less of the radius R.

Although the case where two winding bodies 100 are stored is illustrated here, the number of winding bodies 100 to be stored is not limited, and a configuration may be configured in which three or more winding bodies 100 are stored. Further, the partition plate 18 may not be provided. Further, although not shown, the carrier tape packing box 1 may be provided with any other member used in a known packing box, such as an upper lid and a cushioning member.

The material of the carrier tape packing box 1 is not particularly limited, but is preferably corrugated cardboard or plastic from the viewpoint of cost. For example, when corrugated cardboard is used as a material, the box type is not particularly limited, and for example, A type cardboard box (tangerine box type), B type cardboard box (insertion type), C type cardboard box (lid / main body separation type). Etc. can be adopted.

FIG. 5 is a front sectional view showing a state in which the carrier tape winding body is housed in the second embodiment of the carrier tape packing box.

FIG. 5 shows a state in which the carrier tape packing box 2 in which the two winding bodies 100 are housed is viewed from above the upper flange surface 140 of one winding body 100. In the carrier tape packing box 3, the inner flaps 19 and 20 are formed with holding grooves 21, 22, 23, 24, 25, 26 at the end of contact with the winding body 100 to receive the winding body 100. In that respect, it differs from the carrier tape packing box 1 of the first embodiment.

By providing the holding grooves 21, 22, 23, 24, 25, 26, the left and right inner flaps 19, 20 can hold the winding body 100 more firmly. As a result, the fine movement of the winding body 100 at the time of storage can be suppressed more effectively, and the positioning accuracy of the winding body 100 can be improved. From this point of view, holding grooves 21, 22, 23, 24, 25, 26 for receiving the end portion of the winding body 100 are formed in both the first inner flap 19 and the second inner flap 20. Is preferable.

Specifically, the first inner flap (left inner flap) 19 has a holding groove 21 for receiving the upper flange 120 of the winding body 100, an upper flange 120 of one winding body 100, and another body. A holding groove 23 for receiving the lower flange 130 of the winding body 100 and a holding groove 22 for receiving the lower flange 130 of the winding body 100 are formed.

Similarly, the second inner flap (right inner flap) 20 has a holding groove 24 for receiving the upper flange 120 of the winding body 100, one lower flange 130, and another upper flange of the winding body 100. A holding groove 26 for receiving the 120 and a holding groove 25 for receiving the lower flange 130 of the winding body 100 are formed.

The flap length L in this case ranges from the root ends of the inner flaps 19 and 20 (see, for example, the root ends 14 and 15 in FIG. 2) to the concave surface of the holding grooves 21,22,23,24,25,26. The length of.

FIG. 6 is a schematic view showing the relationship between the inner flap and the carrier tape winding body in the third embodiment of the carrier tape packing box.

FIG. 6 shows a state in which the carrier tape packing box 3 in which the two winding bodies 100 are housed is viewed from above the upper flange surface 140 of one winding body 100. The carrier tape packing box 3 is different from the carrier tape packing box 1 of the first embodiment in that the flap length L can be adjusted by bending the inner flap 27.

By making the inner flap 27 bendable, the flap length L suitable for the dimensional shape of the winding body 100 of the carrier tape 110 to be stored can be adjusted. As a result, the contact end portion 29 of the inner flap 27 comes into contact with the winding body 100 in the region P4, and the inner flap 27 can hold the winding body 100 more firmly. As a result, the fine movement of the winding body 100 at the time of storage can be suppressed more effectively, and the positioning accuracy of the winding body 100 can be improved.

In this case, the flap length L refers to the length from the root end portion 14 of the inner flap 27 to the abutting end portion 29, as described above, and does not include the length of the bent end portion 30.

The method of making it foldable is not particularly limited, and for example, the inner flap main body 28 may be provided with a fold line or a shallow notch line so as to be foldable.

FIG. 7 is a schematic view showing the relationship between the inner flap and the carrier tape winding body in the fourth embodiment of the carrier tape packing box.

FIG. 7 shows a state in which the carrier tape packing box 4 in which the two winding bodies 100 are housed is viewed from above the upper flange surface 140 of one winding body 100. In the carrier tape packing box 4, the inner flap 31 is erected from the inner wall of the carrier tape packing box 4 toward the inside. The inner flap 31 is erected from the inner flap main body 32 that comes into contact with the winding body 100 and the inner flap main body 32, and the inner flap main body 32 and the inner wall (reinforcing plate 11 if the reinforcing plate 11 is provided). It differs from the carrier tape packing box 1 of the first embodiment in that it includes a movement control unit 34 for preventing contact with the carrier tape.

In the inner flap main body 32 erected inward from the inner wall of the carrier tape packing box 4, the contact end portion 33 comes into contact with the winding body 100 in the region P5. Then, the inner flap main body 32 tries to come into contact with the inner wall (reinforcing plate 11 if the reinforcing plate 11 is provided) by the restoring force (see arrow F1), but between the inner flap main body 32 and the wall surface. This can be prevented by providing the movement control unit 34.

Here, an embodiment in which the movement control unit 34 is connected to the inner flap main body 32 is illustrated, but the present embodiment is not limited to this. The movement control unit 34 may be a separate member from the inner flap 31. For example, the inner flap 31 may be a separate member and may have a movement restricting portion arranged between the inner flap 31 and the inner wall of the carrier tape packing box 4.

In this case, the flap length L means the length from the root end portion 14 of the inner flap 31 to the contact end portion 33, and does not include the length of the movement restricting portion 34, as described above.

<Carrier tape packing body, packing method>

In the carrier tape packing body according to the present embodiment, the winding body 100 of the carrier tape 110 is housed in the carrier tape packing boxes 1, 2, 3 and 4. For example, when the winding body 100 of the carrier tape 110 is packed in the carrier tape packing box 1 of the first embodiment, the carrier tape packing box 1 described above and the winding body of the carrier tape 110 housed therein are packed. A carrier tape packing body comprising 100 and 100, in which the winding body 100 is held by the contact ends 16 and 17 of the inner flaps 12 and 13.

The method of packing the winding body 100 of the carrier tape 110 according to the present embodiment is a packing method of storing the winding body 100 of the carrier tape 110 in the carrier tape packing boxes 1, 2, 3, and 4. For example, in the case of packing the winding body 100 of the carrier tape 110 in the carrier tape packing box 1 of the first embodiment, the inner flap 12 may be attached to the winding body 100 housed in the carrier tape packing box 1. 13 is erected inward from the end of the inner wall, and the contact ends 16 and 17 are brought into contact with the winding body 100, whereby the winding body 100 is held by the inner flaps 12 and 13. Including, packing method.

Specifically, first, the winding body 100 of the carrier tape 110 is stored in the carrier tape packing box 1 so that the flange portion (upper flange 120 or lower flange 130) of the winding body 100 faces the reinforcing plate 11. do. Subsequently, the inner flaps 12 and 13 are erected from the reinforcing plate 11 and brought into contact with the winding body 100. Although the packing method according to the present embodiment is such a simple method, it is possible to suppress the external impact from being transmitted to the winding body 100.

As described above, the carrier tape packing boxes 1, 2, 3 and 4, and the packing body and carrier tape 110 packing method using the carrier tape packing boxes 1, 2, 3 and 4 according to the present embodiment are simple and low cost. It has at least the advantage of being excellent in shock absorption from the outside. Therefore, it is possible to effectively suppress loosening and unwinding of the carrier tape 110 due to vibration during transportation, drop impact, and the like.

Further, since excellent shock absorption can be exhibited without necessarily using auxiliary materials such as cushioning members, it is expected that the number of members is small and the box management can be simplified as a packing box. In addition, since the dimensional restrictions can be relaxed as a packaging box, it can be expected that the packaging box will be standardized and generalized.

The present invention will be described in more detail with reference to the following examples and comparative examples, but the present invention is not limited to the following examples.

(Example 1)

A corrugated cardboard packaging box A (with flaps) having the structures shown in FIGS. 2 and 3 was produced. The dimensions and shapes are as follows.
・ Packing box length = 44 cm
・ Packing box width = 35 cm
・ Height of packing box = 45 cm
-Each length of inner flaps 12 and 13 (flap length L) = 17 cm
The flap length L is (√2-1) times or more and 1 times or less the radius R of the winding body 100.

(Comparative Example 1)

A corrugated cardboard packaging box B (with stoppers and without flaps) having the structures shown in FIGS. 8 and 9 was produced. The dimensions and shapes are as follows.
It is as follows.
・ Packing box length = 44 cm
・ Packing box width = 35 cm
・ Height of packing box = 45 cm
-The length of each of the stoppers 230 and 240 (the length from the bent portion 250 to the stopper end 270, the length from the bent portion 260 to the stopper end 280) = 17 cm.

The winding body 100 of the carrier tape 110 shown in FIG. 1 was prepared, stored in the packing boxes A and B, and subjected to a drop impact test.

(Drop impact test)

First, the vibration measuring instrument was fixed to the carrier tape 110 and wound on a reel to form a winding body 100. The dimensions and shape of the winding body 100 are as follows.
-Radius R of winding body 100 (radius of upper flange 120 and lower flange 130) = 21 cm
-Weight of winding body 100 = 4100 g (carrier tape + reel)
・ Total weight of packing box = 9500g (carrier tape x 2 + reel x 2 + packing box)
-Tape length of carrier tape 110 = 1300 m
-Tape width of carrier tape 110 = 8 cm
Subsequently, the two winding bodies 100 were stored in the packing boxes A and B, respectively, and used as the packing bodies A and B. The packages A and B were naturally dropped from a height of 30 cm onto the floor. Then, the impact resultant force (unit [G], see the following formula) was obtained from the measured value of the vibration measuring device. This impact resultant force is the vector sum of the accelerations in the X-axis direction, the Y-axis direction, and the Z-axis direction, and is used as an index of the degree of impact. It was evaluated that the smaller the G value of the impact resultant force, the higher the impact absorption of the packaging box.

Table 1 shows the measurement results of Example 1 and Comparative Example 1.

From the above, the packing box A of Example 1 provided with the inner flaps 12 and 13 for holding the winding body 100 is a packing box of Comparative Example 1 provided with the inner flaps 12 and 13 while being simple and low cost. It was at least confirmed that it had better shock absorption than B.

1,2,3,4: Carrier tape packing box, 10: Outer box, 11: Reinforcing plate, 12,13,19,20,27,31: Inner flap, 14,15: Root end, 16,17 , 29, 33: Contact end, 18: Partition plate, 21, 22, 23, 24, 25, 26: Holding groove, 28, 32: Inner flap body, 30: Bent end, 34: Movement restriction, 100: Winding body, 110: Carrier tape, 120: Upper flange, 140: Upper flange surface, 160: Upper flange side surface, 130: Lower flange, 150: Lower flange surface, 170: Lower flange side surface, 200: Conventional carrier Packing box for tape, 210: outer box, 220: reinforcing plate, 230, 240: stopper, 250, 260: bent part, 270, 280: stopper end part, 290: partition plate, H: center hole, L: flap length , R: radius, P1 to P6: area

Claims (7)

A packing box for carrier tape that stores a winding body in which the carrier tape is wound on a reel.
The carrier tape packaging box comprises an inner flap erected inward from the end of its inner wall.
The inner flap can hold the winding body by abutting on the winding body housed inside the packing box for carrier tape.
The flap length of the inner flap, which is the length from the root end of the inner flap to the contact end with the winding body, is (√2-1) times or more and 1 times the radius of the winding body. Is below,
Packing box for carrier tape. The inner flap is
A first inner flap erected from one end of the inner wall,
A second inner flap erected from the end of the inner wall facing the one end,
Equipped with
The contact end of the first inner flap and the contact end of the second inner flap make it possible to hold the winding body.
The packaging box for carrier tape according to claim 1. The inner flap is formed with a holding groove for receiving the winding body at the contact end portion with the winding body.
The carrier tape packaging box according to claim 1 or 2. Since the inner flap is bendable, the flap length can be adjusted.
The packaging box for carrier tape according to any one of claims 1 to 3. The inner flap
An inner flap body that is erected inward from the inner wall of the carrier tape packing box and is in contact with the winding body.
A movement restricting unit that is erected from the inner flap body and prevents contact between the inner flap body and the inner wall.
To prepare
The packaging box for carrier tape according to any one of claims 1 to 4. The carrier tape packing box according to any one of claims 1 to 5.
The winding body of the carrier tape housed in the carrier tape packing box, and
Equipped with
The winding body is held by the abutting end of the inner flap.
Carrier tape packing body. It is a packing method of the winding body of the carrier tape, in which the winding body in which the carrier tape is wound on a reel is stored in a packing box for the carrier tape.
The carrier tape packing box is
With an inner flap that can be erected inward from the end of its inner wall,
The inner flap can hold the winding body by abutting on the winding body housed inside the packing box for carrier tape.
The flap length of the inner flap, which is the length from the root end of the inner flap to the contact end with the winding body, is (√2-1) times or more and 1 times the radius of the winding body. Is below
The inner flap is erected inward from the end portion of the inner wall with respect to the winding body housed in the carrier tape packing box, and the contact end portion is applied to the winding body. Including a step of holding the winding body by the inner flap by contacting the winding body.
How to pack the carrier tape winding body.

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