JP2012236610A - Carrier tape for packaging and winding reel therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent decrease in a mounting rate by preventing a top tape from being stuck on an electronic component received in an emboss of a carrier tape.SOLUTION: A carrier tape 10 for packaging comprises: a carrier tape body 12 in which an emboss 16 for receiving an electronic component 14 is formed at predetermined intervals in a length direction; and a top tape 30 to be stuck on the upper surface thereof. The carrier tape 10 for packaging is wound by a core of a reel, and the winding is prevented from collapsing by a pair of flanges at core both ends. The maximum width of a bottom part 20 of the emboss 16 is larger than that of the frontage of the emboss 16, and larger than the width between side surfaces 18 of the emboss 16. The shape of a protrusion 22 where the bottom part 20 protrudes from the side surface 18 of the emboss 16 has an R-shaped sectional shape in a depth direction of the emboss 16, and a corner 24 is formed so as to have an R-shape when the bottom part 20 is viewed from the bottom surface side.

Description

  The present invention relates to a packaging carrier tape for packaging electronic components and a take-up reel thereof, and more specifically to prevention of sticking of electronic components when a top tape is peeled off.

  At present, for packaging electronic parts, for example, an electronic part is put in a carrier tape body and a top tape is stuck on a reel. 4A shows the entire reel 120, and FIG. 4B shows a partially enlarged view of (A). FIG. 4 (C-1) shows a further enlarged view of FIG. 4 (B). As shown in FIG. 4 (C-1), the packaging carrier tape 100 has an emboss (or th Pocket) 106 is formed of a carrier tape main body 102 in which a large number of pockets 106 are formed at a predetermined interval in the length direction, and a top tape 110 attached thereon. The packaging carrier tape 100 is wound around the core 122 of the reel 120 shown in FIG. 4 (A), and the collapse is prevented by the flanges 124A and 124B at both ends of the core 122. The packaging carrier tape 100 is used by pulling out a length as required.

  However, in the example shown in FIG. 4 (C-1), since the bottom surface 108 of the emboss 106 is not flat and is narrower than the opening dimension W4 of the emboss 106, the packaging carrier tape 100 is wound around the reel 120. If the tightening force is too strong, the bottom surface 108 of the emboss 106 pushes down the top tape 110 of the lower packaging carrier tape 100 as shown in FIG. Then, when the top tape 110 and the electronic component 104 come into contact with each other and the top tape 110 is peeled off (when mounted), the electronic component 104 adheres to the top tape 110 and the mounting rate is lowered. For this problem, quality is currently ensured by optimizing the tightening force when the packaging carrier tape 100 is wound around the reel 120.

  As a technique for suppressing such sticking between the top tape and the electronic component, for example, there is a technique shown in Patent Document 1 below. In the carrier tape and storage device for storing small articles of Patent Document 1, at least a part of the depth is equal to or deeper than the pocket between the pockets for storing articles formed on the carrier tape. It is disclosed to arrange a dummy pocket which is a hole and does not store an article. When the carrier tape is wound up, the dummy pocket acts to maintain the distance between the two carrier tapes even if the pocket positions overlap on the inner side and the outer side. This prevents the bottom of the pocket from entering the opening of the inner carrier tape and prevents nesting (a phenomenon in which the bottom of the outer pocket enters the opening of the inner pocket).

  Patent Document 2 listed below discloses a side wall that forms an embossed part in a carrier tape for electronic parts having an embossed part for accommodating electronic parts arranged at regular intervals in the longitudinal direction of a flexible tape-like object. In the cross-sectional shape of the rib part of the side wall part, the outer dimension (X) of the embossed bottom part is the opening dimension (Y) of the upper part of the embossed part. A larger carrier tape for electronic components is disclosed. According to the technique, by providing the rib, a phenomenon in which the embossed portions enter after winding on the reel is less likely to occur.

JP 2003-31726 A JP 2002-46770 A

  However, the background art as described above has the following disadvantages. First, the technique described in Patent Document 1 has a disadvantage in that processing is required in a portion that is not necessary for storing electronic components. Further, in the technique described in Patent Document 2, no problem occurs when the vertical positions of the embossed portions are aligned, but corner portions enter when the misalignment occurs. For example, even if the embossed bottom (part or whole) dimension is larger than the opening dimension, if the upper and lower tapes are obliquely displaced when wound on a reel, the corners on the upper embossed bottom One of them may enter the inside of an adjacent emboss (lower emboss). In particular, when a small part is stored in an emboss, since the distance between the embosses may be larger than the dimensions of the emboss, the carrier tape is easily bent, and one of the corners on the bottom surface is likely to enter the adjacent emboss. . This state is shown in FIG. 2 (B). In the storage carrier tape 130 shown in FIG. 2B, when wound around the reel 120, the corner portion 132 of the bottom surface 108 of the emboss 106 that stores the electronic component 104 is formed on the lower (or inner) emboss 106. It is pushed. The pressed corner portion 132 presses the top tape 110, and there is a problem that the electronic component 104 in the emboss 106 sticks to the pressed top tape 110.

  This invention pays attention to the above points, and prevents the top tape from sticking to the electronic components housed in the embosses (pockets) of the carrier tape, thereby suppressing the reduction in the mounting rate. It is an object of the present invention to provide a storage tape that can be stored and a take-up reel thereof.

  The packaging carrier tape of the present invention is a packaging carrier in which embosses capable of storing electronic components are formed at predetermined intervals in the length direction of the carrier tape body, and the top tape is bonded to the upper surface of the carrier tape body. The embossed portion of the tape, wherein a maximum dimension of the bottom of the emboss is larger than a dimension of the opening of the emboss and a dimension between the outer faces of the emboss, and a portion protruding from the outer face around the bottom The cross-section in the depth direction is R-shaped, and when the emboss is viewed from the bottom side, the corners of the bottom are R-shaped.

  The take-up reel of the packaging carrier tape of the present invention comprises a core for taking up the carrier tape and a pair of flanges provided at both ends of the core. It is characterized by that. The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

  According to the present invention, in the packaging carrier tape, the embossing capable of storing electronic components is formed on the carrier tape body at predetermined intervals in the length direction, and the top tape is bonded to the upper surface of the carrier tape body. The maximum dimension of the bottom of the emboss is larger than the dimension between the opening and the outer surface of the emboss, and the cross section in the depth direction of the emboss of the portion that is around the bottom and protrudes from the side surface Furthermore, it has an R shape, and when the emboss is viewed from the bottom side, the corner of the bottom portion has an R shape. For this reason, it is possible to prevent the packaging carrier tape from being fitted into the embosses adjacent in the vertical direction while being wound around the reel. Further, even when the packaging carrier tape wound around the reel is displaced in the vertical direction, the corner of the embossed bottom is R-shaped, and the longitudinal section of the peripheral edge of the bottom is R-shaped. As a result, the bottom of the carrier tape pushes down the top tape to avoid contact between the top tape and electronic components, and the pressure that the top tape is pressed against the electronic components is reduced. A reduction in the mounting rate can be suppressed without the components sticking to the top tape.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Example 1 of this invention, (A) is an external appearance perspective view which shows the carrier tape for packaging, (B) is the said (A) cut | disconnected along a # A- # A line, and it sees in the arrow direction. (C) is a cross-sectional view taken along the line # B- # B and viewed in the direction of the arrow. It is sectional drawing which shows the state which wound up the packaging carrier tape on the reel, (A) is a figure which shows Example 1, (B) is a figure which shows the background art of a comparative example. It is a figure which shows the other Example of this invention. It is a figure which shows background art, (A) is a figure which shows a reel, (B) is a figure which expands and shows a part of said (A), (C-1) is a figure which expanded said (B) further FIG. 2C is a diagram showing a state in which the tape is wound well, and FIG. 2C-2 is an enlarged view of the above-described (B), and is a diagram showing a state in which the tape is wound poorly.

  Hereinafter, the best mode for carrying out the present invention will be described in detail based on examples.

  First, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a view showing the present embodiment, (A) is an external perspective view showing a packaging carrier tape, and (B) is a cut along (# A- # A line) in the direction of the arrow (A). Sectional view seen, (C) is a sectional view of (A) taken along line # B- # B and viewed in the direction of the arrow. 2A and 2B are cross-sectional views showing a state in which the packaging carrier tape is wound on a reel. FIG. 2A is a view showing the present embodiment, and FIG. 2B is a view showing the background art of the comparative example. As shown in FIGS. 1 (A) to 1 (C), the packaging carrier tape 10 of this embodiment has a large number of embosses (or pockets) 16 for storing electronic components 14 at predetermined intervals in the length direction. The carrier tape body 12 and the top tape 30 bonded to the upper surface of the carrier tape 12 are configured. The packaging carrier tape 10 is wound around a core 122 of a reel 120 as shown in FIG. 4A as in the background art described above, and is wound by a pair of flanges 124A and 124B at both ends of the core 122. Collapse is prevented. The packaging carrier tape 10 is used by pulling out a length as required.

  In the present embodiment, the maximum bottom width X1 of the bottom 20 of the emboss 16 is wider than the width X2 of the opening (or opening) of the emboss 16 of the carrier tape main body 12 and between the outer surfaces 18 of the emboss 16. It is set to be larger than the width X3, and the bottom surface is formed flat. Accordingly, when the packaging carrier tape 10 is wound around the reel 120 and the upper and lower emboss 16 positions overlap, the bottom 20 of the upper emboss 16 does not enter the opening of the lower emboss 16. . Furthermore, in the present embodiment, the shape of the protruding portion 22 in which the bottom portion 20 protrudes from the outer surface 18 of the emboss 16 is the cross section (longitudinal cross section) along the depth direction of the emboss 16 is an R shape. Furthermore, the corner portion 24 is formed in an R shape when the bottom portion 20 is viewed from the bottom surface side.

  That is, when the corner is removed and the width X5 of the bottom back surface is shorter than the maximum bottom width X1, the arrangement of the emboss 16 after winding on the reel 120 is as shown in FIG. Even if it exists, the distance which the bottom part corner | angular part 24 of the upper embossing 16 is pushed in in the lower embossing 16 can be reduced. Further, the R shape of the protrusion 22 and the corner 24 reduces the pressure with which the top tape 30 is pressed against the electronic component 14 as compared to the case shown in the background art described above (see FIG. 2B). The sticking of the electronic component 14 to the top tape 30 is reduced. For this reason, when the top tape 30 is peeled off (during mounting), it is possible to suppress a reduction in the mounting rate that the electronic component 14 sticks to the top tape 30. The bottom 20 may be formed by a single press simultaneously with the formation of the front edge of the emboss 16 or may be formed by a pressing process different from the front opening formation. FIG. 1 (B) shows a cross section of FIG. 1 (A) along the length direction of the packaging carrier tape 10, but as shown in FIG. 1 (C), FIG. The shape and dimensional relationship in the cross section cut along the line # B- # B and viewed in the direction of the arrow are basically the same as those in FIG.

Thus, according to the first embodiment, there are the following effects.
(1) A packaging tape in which a large number of embosses 16 capable of storing electronic components 14 are formed on the carrier tape body 12 at predetermined intervals in the length direction, and a top tape 30 is bonded to the upper surface of the carrier tape body 12. In the carrier tape 10, the maximum bottom width X <b> 1 of the bottom portion of the emboss 16 is larger than the width X <b> 2 of the front edge of the emboss 16 and the width X <b> 3 between the outer surfaces 18. For this reason, in a state where the packaging carrier tape 10 is wound around the reel 120, it is possible to prevent the embossing adjacent in the vertical direction from being fitted.
(2) A cross section in the depth direction of the embossing of the protrusion 22 that protrudes from the outer surface 18 around the bottom 20 has an R shape, and further, the bottom 20 when the emboss 16 is viewed from the bottom side. The shape of the corner portion 24 was an R shape. Therefore, when the packaging carrier tape 10 is wound around the reel 120, the distance and pressure with which the carrier tape bottom 20 pushes down the adjacent lower top tape 30 is reduced, and the top tape 30 is peeled off (when mounted) ), The electronic component 14 does not stick to the top tape 30, and a reduction in the mounting rate can be suppressed.

In addition, this invention is not limited to the Example mentioned above, A various change can be added in the range which does not deviate from the summary of this invention. For example, the following are also included.
(1) The shapes and dimensions shown in the above-described embodiments are merely examples, and can be appropriately changed within a range where similar effects can be obtained. For example, the bottom shape of the bottom portion 20 and the curvature of the R shape of the protruding portion 22 can be changed as appropriate within a range in which the pushing distance and pressure of the top tape 30 are reduced.
(2) In the above-described embodiment, the bottom 20 is formed by pressing simultaneously with the formation of the front edge of the emboss 16. However, this is also an example, and the bottom 20 may be formed by a press different from the front opening formation.
(3) In the above embodiment, the packaging carrier tape 10 is wound around the reel 120. However, this is also an example, and the winding onto the reel 120 may be performed as necessary.

(4) The maximum bottom width X1, the width X2 of the front edge of the embossing 16 and the width X3 between the outer surfaces 18 of the embossing 16 may be appropriately changed within the range where the same effect is obtained. For example, in the first embodiment, the entire circumference of the bottom 20 of the emboss 16 protrudes from the outer surface 18, and the maximum dimension of the two sets of opposing protrusions 22 is the same bottom width X1. On the other hand, in the packaging carrier tape 10A shown in FIG. 3 (A), the protruding portion 22 is provided only on the opposite outer side surfaces 18A and 18C of the emboss 16 so that the carrier tape main body when viewed from the bottom side. Only the bottom width X1 in the length direction of 12 is configured to be larger than the bottom width X3 between the outer surfaces 18, but the same effect as in the first embodiment can be obtained. Alternatively, as in the packaging carrier tape 10B shown in FIG. 3 (B), the protruding portions 22 are provided only on the opposed outer side surfaces 18B and 18D of the emboss 16 and in a direction orthogonal to the length direction of the carrier tape body 12. Only the bottom width X1 may be configured to be larger than the bottom width X3 between the outer surfaces 18. In either case, the corner 24 has an R shape when viewed from the bottom side. Furthermore, the planar shape itself of the emboss 16 may be a rectangle, and the protruding portion 22 may be provided on the entire periphery of the bottom to form the R-shaped corner 24.
(5) In the above embodiment, the electronic component 14 has been described as an example to be stored in the emboss 16, but this does not preclude the application of the present invention to wrap another packaged body.

  According to the present invention, a large number of embosses are formed at predetermined intervals in the length direction on the carrier tape body, and the maximum dimension of the bottom of the emboss is larger than the dimension between the opening and the outer surface of the emboss. And the cross section in the depth direction of the embossing of the part which is the circumference of the bottom part and protrudes from the outer side surface is an R shape, and when the embossing is seen from the bottom surface side, the corner of the bottom surface Was made R-shaped. For this reason, when a packaging carrier tape having a top tape bonded to the upper surface of the carrier tape body is wound on a reel, it is possible to prevent embossing between adjacent upper and lower embosses, and when displacement occurs However, since the bottom of the upper emboss does not push down the top tape on the lower emboss and sticks to the electronic component stored in the emboss, it can be applied to a carrier tape for storing electronic components.

10, 10A, 10B: Carrier tape for packaging 12: Carrier tape body 14: Electronic component 16: Emboss 18, 18A-18D: Outer surface 20: Bottom portion 22: Protruding portion 24: Corner portion 30: Top tape 100: Carrier for packaging Tape 102: Carrier tape body 104: Electronic component 106: Emboss 108: Bottom surface 110: Top tape 120: Reel 122: Core 124A, 124B: Flange 130: Carrier tape 132 for packaging: Corner portion

Claims (2)

Embossing capable of storing electronic components is formed at predetermined intervals in the length direction of the carrier tape body, and is a carrier tape for packaging in which a top tape is bonded to the upper surface of the carrier tape body,
The maximum dimension of the bottom of the emboss is larger than the dimension of the opening of the emboss and the dimension between the outer faces of the emboss, and
The cross-section in the depth direction of the embossed portion of the portion protruding from the outer surface around the bottom is R-shaped,
A packaging carrier tape, wherein a corner portion of the bottom portion has an R shape when the emboss is viewed from the bottom surface side.   A winding of a carrier tape for packaging, comprising: a core for winding the carrier tape; and a pair of flanges provided at both ends of the core, wherein the packaging carrier tape according to claim 1 is wound. Reel.