JP4079982B2 - Carrier tape for storing small items - Google Patents

Description

  The present invention relates to a carrier tape for stably storing articles such as small chip parts such as a chip size package (CSP) of a semiconductor device and small parts such as a microphone of a mobile phone. It is.

  After the chip parts are measured for their electrical characteristics at the final stage and judged as good or bad, only good parts are packaged and shipped in a predetermined packaging form. This work is almost automated. For example, at present, chip parts are packaged by inserting a chip part into each emboss of a so-called embossed tape in which component storage recesses are formed in a line at equal intervals by embossing on a carrier tape, and then encapsulating with a cover tape. Many are used, and automatic packaging equipment is used for this purpose.

FIG. 11 is a view showing a conventional carrier tape in an article storage state, where (A) is a plan view and (B) is a cross-sectional view cut in the width direction at a pocket position. The cover tape is not shown in (A), and the cover tape is also shown in (B).
Reference numeral 2 denotes a flexible resin carrier tape main body, and pockets 4 for storing articles are formed in the longitudinal direction by embossed holes. An article 6 such as CSP is stored in the pocket 4. Here, it is assumed that a CSP is stored as the article 6. The CSP 6 is accommodated in the pocket 4 so that its electrode terminal, for example, a solder terminal is on the lower side.

  The pockets 4 are arranged in a line at equal intervals along the longitudinal direction of the carrier tape body 2. Feed holes 8 for intermittently feeding the carrier tape body 2 are formed at equal intervals on one side of the pocket 4 array.

  In the carrier tape main body 2, the flat surface on the side where the opening of the pocket 4 is provided becomes the flange portion 10, and a resin cover tape 12 is bonded to the part 6 in the pocket 4 to enclose the component 6. Or it attaches by thermocompression bonding.

  The carrier tape in a state where the article 6 is stored in the pocket 4 and enclosed by the cover tape 12 is wound around a reel so that the cover tape 12 is on the outside. FIG. 12 shows a partial cross-sectional view of the overlapping portion of the carrier tape wound around the reel, and shows the location where the pocket 4b of the outer carrier tape just overlaps the position of the pocket 4a of the inner carrier tape. ing. The lower side of the figure represents the center direction of the reel.

  In general, the pocket 4 is formed so that the area of the opening is larger than the area of the inner bottom because of the operability when the article is stored and taken out. Although the carrier tape body 2 has a thickness, the size of the outer bottom surface of the pocket 4 is smaller than the size of the opening even when the thickness is taken into consideration. Therefore, as shown in FIG. 12, when the outer carrier tape pocket 4b just overlaps the position of the inner carrier tape pocket 4a, when the carrier tape is wound around the reel or when it is transported after winding. When a force is applied, a so-called nesting phenomenon occurs in which the bottom of the outer pocket 4b enters the opening of the inner pocket 4a as shown in FIG.

  When the article stored in such a carrier tape is, for example, a CSP having a BGA (Ball Grid Array) type solder terminal, the solder terminal may be deformed by pressure due to nesting. Not only CSP but also other articles may be damaged by nesting.

Thus, in order to avoid such a nesting problem, a carrier tape has been proposed in which nesting is prevented by improving the wall surface structure inside the pocket (see Patent Document 1). In the proposed carrier tape, a rib portion protruding outward is formed on the wall surface portion of the pocket so that the outer dimension of the bottom portion is larger than the opening dimension of the pocket in the cross-sectional shape of the rib portion.
JP 2002-46770 A

In the method of improving the pocket shape itself, there is no problem with a carrier tape that accommodates a large article, but in a pocket that accommodates a small article such as CSP, the pocket itself is small. If the shape other than the above is configured, the function for storing articles may be deteriorated.
Therefore, the present invention aims to prevent nesting in the carrier tape, but not to change the pocket for storing articles as in the proposal, but to prevent nesting by other means. Is.

According to the present invention, an embossed hole having an opening on the surface side of a flexible resin carrier tape main body and having an opening in the longitudinal direction of the carrier tape main body at equal intervals and deeper than the thickness of the carrier tape main body is an article storage pocket. In carrier tapes formed as (hereinafter simply referred to as pockets), there are embossed holes formed between pockets in the same depth direction as the pockets, with at least a part of the depth being the same as or deeper than the pockets. A dummy pocket that does not store articles is arranged, the storage pocket has a through-hole formed in the bottom surface, and the dummy pocket has an outer bottom surface that overlaps the opening of the pocket When placed, the outer bottom surface is formed in a shape that protrudes at least partially from the opening of the pocket, and the bottom surface has a through hole. Not formed, that the plane size of the outer bottom surface of the dummy pockets are larger than the planar size of the opening of dummy pocket accommodating pockets and the dummy pocket of the planar shape of the opening portion are different from each other It is characterized by.

  Since this carrier tape has dummy pockets on both sides of the pocket, when the carrier tape is wound around the reel after the article is stored in the pocket and sealed with the cover tape, the pocket is placed on the inside and outside adjacent to the pocket. Even if the positions overlap, the dummy pocket acts to maintain the distance between the two carrier tapes, making it difficult for the bottom of the outer carrier tape pocket to enter the pocket opening of the inner carrier tape and preventing nesting. be able to.

  In the reference example of the present invention, an embossed hole having an opening on the surface side of a flexible resin carrier tape body and having a depth greater than the thickness of the carrier tape body at equal intervals in the longitudinal direction of the carrier tape body In the carrier tape formed as a pocket, on the back surface of the carrier tape main body, ribs protruding in a plate shape at least partially having the same height as or higher than the pocket are formed integrally with the carrier tape main body. It is characterized by this.

  Since this carrier tape has ribs on both sides of the pocket, when the carrier tape is wound around the reel after the article is stored in the pocket and sealed with the cover tape, Even if the positions overlap, the rib acts to maintain the distance between the two carrier tapes, and the pocket bottom of the outer carrier tape is less likely to enter the pocket opening of the inner carrier tape, preventing nesting. it can.

  In the carrier tape of the present invention in which the dummy pocket is formed, the dummy pocket is formed such that the outer bottom surface shape protrudes at least partially from the opening of the pocket. As a result, when the carrier tape is wound on the reel, the bottom of the dummy pocket may enter the pocket opening even if the positions of the adjacent inner carrier tape pocket and the outer carrier tape dummy pocket overlap. Absent.

  One example of the shape in which the bottom surface shape of the outer side of the dummy pocket is formed so that at least a part thereof protrudes from the planar shape of the opening portion of the pocket is that the bottom surface outside the dummy pocket and the opening portion of the pocket are formed on the carrier tape body. In the longitudinal direction, one has a longer part than the other, and in the direction perpendicular to the other, the other has a longer part.

  Another example of the shape in which the bottom shape of the outer side of the dummy pocket is formed so that at least a part protrudes from the planar shape of the opening of the pocket is another type in which the bottom shape of the outer side of the dummy pocket is different from the shape of the opening of the pocket It is a case where it is formed in the shape of.

  Still another example of the shape in which the bottom shape of the outer side of the dummy pocket is formed so that at least a part thereof protrudes from the planar shape of the opening of the pocket is as follows. Direction), the depth is deeper than the center at both ends, and when the dummy pocket is placed so that the bottom surface on the outside of the dummy pocket overlaps the opening of the pocket, This is a case where at least a part of the bottom surface is formed in a shape protruding from the opening of the pocket.

  Still another example of the shape in which the bottom surface shape of the outer side of the dummy pocket is formed so that at least a part thereof protrudes from the planar shape of the opening of the pocket is the dummy pocket has both end portions in the direction perpendicular to the longitudinal direction of the carrier tape body. Is wider than the central portion, and when the outer bottom surface of the dummy pocket is arranged so as to overlap the opening portion of the pocket, at least a part of the outer bottom surface of the end portion of the dummy pocket extends from the opening portion of the pocket. This is a case where it is formed in a protruding shape.

  A preferable example of the shape of the dummy pocket is such that the wall surface of the dummy pocket is formed in a direction perpendicular to the plane of the surface of the carrier tape body, and the shape of the opening and the shape of the inner bottom surface are the same. Since the carrier tape body is thick, the area of the outer bottom surface of the dummy pocket is larger than the area of the opening of the dummy pocket. When the carrier tape is wound on a reel, when the pocket positions overlap on the inside and outside adjacent to each other, the dummy pockets overlap each other, but the outer bottom area of the dummy pocket is larger than the opening area. The bottom of the dummy pocket does not enter the opening of the inner dummy pocket, and the distance between adjacent carrier tapes can be maintained. Thereby, even if the pocket of the inner carrier tape and the pocket of the outer carrier tape existing between the dummy pockets overlap, the bottom of the outer pocket is prevented from entering the opening of the inner pocket.

  In the carrier tape of the reference example in which the rib is formed, in a preferred form, the rib is formed between the pockets and extends in the longitudinal direction of the carrier tape body.

  More preferably, the rib is divided into a plurality in the longitudinal direction of the carrier tape body. Thereby, when winding a carrier tape around a reel, it becomes easy to bend in a feed direction (longitudinal direction of a carrier tape body).

  The rib may be formed in a region other than between the pockets. When the carrier tape is wound on a reel and the pockets overlap on the inside and outside adjacent to each other, the more ribs, the easier it is to maintain the distance between adjacent carrier tapes, and the bottom of the outside pocket is the inside pocket It is effectively prevented from entering into the opening of the.

  According to the present invention, the dummy pocket prevents the bottom of the outer pocket from entering the opening of the inner pocket regardless of the shape of the pocket for storing the article. Can be designed to be convenient. An example of a preferable pocket shape designed as such is that the planar shape is substantially rectangular, and the inner wall surface has a tapered portion that opens toward the opening, and the opening size at the tapered portion is stored. When the four sides of the article to be supported are in contact with the taper portion, any part on the bottom surface of the article is set to a size that does not contact the bottom surface of the pocket. As described above, if the article is supported on the four sides in the pocket and the bottom portion such as the electrode is not in contact with the bottom surface of the pocket, the portion easily damaged by mechanical damage such as the solder electrode is protected. It is convenient to be able to.

  As a more preferable pocket shape, the taper portion of the inner wall surface of the pocket is provided with a protruding portion that supports the bottom surface of the stored article, and the protruding portion is the article when the stored article is supported by the protruding section. Any part on the bottom surface of the pocket may be provided at a position not in contact with the bottom surface of the pocket. When the size of the article to be stored is reduced by providing the protruding portion in this way and the four sides cannot be supported by contacting the tapered portion, the article is supported on the bottom of the article by supporting the article with the protruding portion. It is possible to prevent a part such as a certain solder terminal from coming into contact with the bottom surface of the pocket.

  A more preferable pocket shape in the case where a tapered portion is provided on the inner wall surface of the pocket, the four corners of the portion where the tapered portion is provided on the inner wall surface of the pocket are recessed outward from the tapered portion. Is. Thereby, since the corner of the article to be stored can be stored without contacting the inner wall surface of the pocket, it can be stored stably.

In order to store the article in the carrier tape, a resin cover sheet is attached to the surface of the carrier tape in order to enclose the article in a pocket. The carrier tape of the present invention and a resin cover sheet attached to the surface of the carrier tape in order to enclose the article in the pocket of the carrier tape may be combined to form a small article storage device.
An article may be stored in such a small article storage device and wound on a reel. That is, the article is stored in the pocket, the resin cover sheet is attached to the surface of the carrier tape, and the carrier tape with the article enclosed in the pocket is wound around the reel with the cover sheet facing outside. Also good.
According to the small article storage device using the carrier tape of the present invention, when the article is stored in the pocket and sealed with the cover tape, when the carrier tape is wound on the reel, the pocket bottom of the outer carrier tape is the inner side. The nesting that enters the pocket opening of the carrier tape can be prevented, and the article stored in the pocket can be prevented from being damaged.

  In the carrier tape of the present invention, an embossed hole having an opening on the surface side of a flexible resin carrier tape main body and formed deeper than the thickness of the carrier tape main body at equal intervals in the longitudinal direction of the carrier tape main body The carrier tape formed as a storage pocket has an embossed hole formed between the pockets in the same depth direction as the pocket and at least partially deeper than the pocket. Since the dummy pocket that is not to be placed is placed, when the carrier tape is wound around the reel after the article is stored in the pocket and sealed with the cover tape, the position of the pocket on the inner side and the outer side is adjacent. Even if they overlap, the dummy pocket acts to maintain the distance between the two carrier tapes and the outer carrier tape pockets. Becomes bottom hardly enter the pocket opening on the inside of the carrier tape, it is possible to prevent nesting.

FIG. 1 represents a first embodiment. (A) is a top view of a carrier tape main body, (B) is sectional drawing in the BB line position of (A), (C) is sectional drawing in the AA line position of (A).
This carrier tape is for housing a BGA type CSP. Reference numeral 20 denotes a flexible carrier tape body made of polycarbonate, and its thickness is 0.18 mm. Reference numeral 22 denotes a rectangular pocket for storing articles, which is formed as an embossed hole having a bottom. A large number of pockets 22 have the same shape and have dents in the same direction, and are arranged at regular intervals in a line at a pitch P1 of 4 mm along the longitudinal direction of the carrier tape body 20. The dimensions of the planar shape of the opening of the pocket 22 are X1 = 1.08 mm and Y1 = 1.58 mm.

  One dummy pocket 24 is formed between the pockets 22. The dummy pocket 24 is an embossed hole having a bottom formed as a recess in the same direction as the pocket 22. The planar shape of the opening of the dummy pocket 24 is an I-type that is narrow at the center and wide at both ends in the direction perpendicular to the longitudinal direction of the carrier tape body 20. The width dimension X2 of the carrier tape main body longitudinal direction in the wide part of both ends is 1.1 mm, and is larger than the width X1 of the pocket 22 in the same direction. The width X2a at the center is narrower than the end and is 0.7 mm. The length Y2 in the direction perpendicular to the longitudinal direction of the carrier tape body in the planar shape of the opening of the dummy pocket 24 is 2.0 mm, which is larger than the length Y1 of the pocket 22 in the same direction.

  On one side of the arrangement of the pocket 22 and the dummy pocket 24, feed holes 26 for intermittently feeding the carrier tape body 20 are formed at equal intervals and arranged in the same arrangement direction as the pocket 22. The feed holes 26 may be provided on both sides of the arrangement of the pockets 22.

  The surface of the main body 20 other than the pocket 22, the dummy pocket 24 and the feed hole 26 (the surface on the side where the opening portions 22 and 24 are provided) is a flat surface, and an article is stored in the pocket 22 and enclosed on the flat surface. Therefore, the cover tape is a flange portion 28 to which the cover tape is attached by thermocompression bonding or adhesion. An area where the cover tape is attached at the flange portion 28 is an area covering the opening portions of the pocket 22 and the dummy pocket 24 without covering the feed hole 26.

A hole 34 is formed in the bottom surface of the pocket 22. The hole 34 is used to confirm the presence of the article after it is sealed in the pocket 22 and to prevent atmospheric pressure fluctuations inside and outside the pocket 22 .

  A part of the cross-sectional shape of the pocket 22 is enlarged and shown in FIG. FIG. 2 is an enlarged view of a portion surrounded by a broken circle C in FIG. Inside the pocket 22, a wall surface 30 from the opening to a predetermined depth is formed in a direction perpendicular to the surface of the flange portion 28, and a wall surface 32 on the bottom side of the wall 30 is a tapered surface that opens in the direction of the opening. It has become. The taper surface 32 is formed with a protrusion 36 for supporting the bottom surface of the article to be stored.

  In FIG. 2, reference numeral 38 denotes a CSP of an article stored in the pocket 22. Solder terminals 40 are formed on the bottom surface of the article 38. The state in which the article 38 is stored can have different forms depending on the size of the article 38.

  In one form, as shown in FIG. 2, the four sides of the article 38 are supported in contact with the tapered portion 32, and the bottom surface of the article 38 and the protruding portion 36 are not in direct contact with each other.

The other form is a state in which the article 38 is small, the four sides of the article 38 do not contact the tapered portion 32, and the bottom surface of the article 38 is in contact with the protruding portion 36 and is supported.
In any case, a portion such as the solder terminal 40 on the bottom surface of the article 38 is supported without contacting the bottom surface of the pocket 22.
However, the present invention includes a case where the protruding portion 36 is not provided and only the tapered portion 32 is provided to support the article 38 as one embodiment.

  At the depth position where the tapered surface 32 is formed, the tapered surface 32 is not formed at the corner portion of the wall surface of the pocket 22, and as shown in FIG. A depression 33 that is recessed outward from 32 is formed. As a result, the corners of the article 38 do not come into contact with the wall surface, the operability when the article 38 is inserted into or taken out from the pocket 22 is improved, and the article 38 can be stably supported by the pocket 22. become able to.

  Although the cover tape is not shown in FIG. 1, after the article 38 is stored in the pocket 22, the cover tape is attached to the flange portion 28 by thermocompression to seal the opening of the pocket 22.

  The dummy pocket 24 includes a central portion 25a and both end portions 25b. The depth of the central portion 25a is shallower than the depths of both end portions 25b. The depth of both end portions 25 b is the same as the depth of the pocket 22. The wall surface of the dummy pocket 24 is formed in a direction perpendicular to the surface of the flange portion 28.

  As the material of the carrier tape main body 20, in addition to the polycarbonate shown above, APET (amorphous polyethylene terephthalate), polystyrene, or the like can be used. Moreover, as a material of the cover tape, polyester or the like can be used.

  The carrier tape containing the article is sealed with a cover tape and wound on a reel. In the wound state, a pocket may overlap between a carrier tape wound on the inside and a carrier tape wound on the outside adjacent thereto, and a dummy pocket may overlap on the pocket.

  FIG. 3 illustrates a case where the pockets 22 overlap each other. (A) represents a portion where the pockets 22 overlap each other. On both sides of the pocket 22, the dummy pockets 24 overlap each other as shown in (B). An article 38 is accommodated in the pocket 22 and sealed with the cover tape 21.

  As shown in FIG. 3B, since the wall surface of the dummy pocket 24 is perpendicular to the surface of the flange portion in the overlapping portion of the dummy pockets 24, the size of the outer bottom surface of the dummy pocket 24 is the size of the opening. Therefore, the bottom of the carrier tape dummy pocket 24 wound outside does not enter the opening of the carrier tape dummy pocket 24 wound inside, A dummy pocket 24 holds the distance between the inner and outer carrier tapes. As a result, in the pocket portion, the size of the outer bottom surface of the pocket 22 of the carrier tape wound on the outside is smaller than the size of the opening portion of the pocket 22 of the carrier tape wound on the inside. Since the gap between the inner and outer carrier tapes is maintained by the pocket 24, the outer bottom of the carrier tape pocket 22 wound outward is prevented from entering the opening of the carrier tape pocket 22 wound inward.

  It is also possible that the carrier tape pocket 22 wound on the inside overlaps with the carrier tape dummy pocket 24 wound on the outside adjacent thereto. FIG. 4 shows this state. (A) is sectional drawing of the state cut | disconnected in the longitudinal direction of the carrier tape main body, (B) is sectional drawing of the state cut | disconnected in the direction orthogonal to it.

  As described with reference to FIG. 1, with respect to the longitudinal direction of the carrier tape body, the dummy pocket 24 has a width X2a smaller than the width X1 of the pocket 22 at the central portion 25a, but is shallower than both ends 25b. Since the width X2 of both end portions 25b of the pocket 24 is larger than the width X1 of the pocket 22, the outer bottom portion of the dummy pocket 24 is prevented from entering the opening of the pocket 22 as shown in FIG. .

  Further, regarding the width direction of the carrier tape main body, the outer bottom portion of the dummy pocket 24 is also shown in FIG. 4B because the length Y2 of the dummy pocket 24 is larger than the length Y1 of the pocket 22. It is prevented from entering the opening of the pocket 22.

  FIG. 5 shows a second embodiment. (A) is a top view, (B) is sectional drawing in the AA line position. FIG. 6 is a view showing the pocket in the embodiment in a state in which an article is stored, (A) is a plan view, (B) is a cross-sectional view seen from one side thereof, and (C) is another view orthogonal thereto. It is sectional drawing seen from the side. When this embodiment is compared with the first embodiment, the dummy pockets 24a are formed in common between the pockets 22a, but the shapes of the pockets 22a and the dummy pockets 24a are different.

  In the pocket 22a, as shown in FIG. 6 and FIG. 7 which is an enlarged view of the wall cross section, the wall surface 30a on the opening side is not perpendicular to the flange surface 28, and has a tapered surface inclined in the opening direction. It differs in that it is. A tapered surface 32 is also provided on the bottom side, but the tapered surface 30a on the opening side is steeper than the tapered surface 32 on the bottom side. The tapered surface 32 on the bottom side and the protrusion 36 provided on the tapered surface 32 are the same as those in the first embodiment.

  In addition, at the depth position where the tapered surface 32 is formed, the tapered surface 32 is not formed at the corner of the wall surface of the pocket 22a. A recess 33 that is recessed outward is also formed.

  6 and 7 show a state where the CSP is stored as the article 38 in the pocket 22a. The size of the article 38 is such that four sides are supported by the tapered surface 32, and is supported with a gap between the bottom surface of the article 38 and the protruding portion 36. When the size of the article 38 is reduced, the bottom surface of the article 38 comes into contact with the protrusion 36 and is supported by the protrusion 36. In either case, the solder terminal 40 does not contact the bottom surface of the pocket 22a.

  The dummy pocket 24a has a wall surface formed in a direction perpendicular to the flange surface 28 and has a uniform depth. The outer size of the dummy pocket 24a is set wider than the opening of the pocket 22a in the longitudinal direction of the carrier tape body 20a, and narrower than the width of the opening of the pocket 22a in the direction orthogonal thereto. ing. The depth of the dummy pocket 24a is equal to or greater than the depth of the pocket 22a.

  FIG. 8A shows a state in which the carrier tape pocket 22a wound on the outside is overlapped with the carrier tape pocket 22a wound on the inside in this embodiment. In that case, the dummy pocket 24a of the carrier tape wound inside is overlapped with the dummy pocket 24a of the carrier tape wound outside as shown in FIG. Therefore, the size of the outer bottom surface is larger than the size of the opening, so that the nesting phenomenon in which the bottom enters the opening at the overlapping portion of the dummy pockets 24a does not occur. Therefore, even in the overlapping portion of the pockets 22a sandwiched between the dummy pockets 24a, the distance between the inner and outer carrier tapes is maintained by the dummy pockets 24a, and the nesting phenomenon between the pockets 22a is prevented.

  FIG. 9 shows a state in which the pocket 22a and the dummy pocket 24a overlap each other. (A) is sectional drawing seen from the direction shown as A direction in FIG. 5, (B) is sectional drawing seen from the direction shown as B direction in FIG.

  Since the width of the dummy pocket 24a in the longitudinal direction of the carrier tape body is wider than the width of the pocket 22a, the nesting phenomenon that the bottom of the dummy pocket 24a enters the opening of the pocket 22a does not occur.

  FIG. 10 shows a reference example, (A) is a plan view, and (B) is a sectional view in the longitudinal direction of the carrier tape body. In the carrier tape main body 20b, a plate-like rib 50 is formed integrally with the carrier tape main body 20b on the back side between the pockets 22 (the flange portion 28 of the carrier tape main body 20b is the front side, and the reverse side is the opposite side). Has been. The rib 50 has a plate-like shape extending in the longitudinal direction of the carrier tape main body 20b, is not integrated with the pocket 22, and is formed in a shape divided into two in the longitudinal direction in the rib 50 itself. The overall length L of the rib 50 is longer than the width W of the opening of the pocket 22, and the height H of the rib 50 is the same as the outer dimension of the pocket 22.

  In this reference example, even when the carrier tape is wound on the reel so that the pocket 22 of the carrier tape wound on the inside is adjacent to the pocket 22 of the carrier tape wound on the inside, Since the ribs 50 maintain the distance between the carrier tape bodies 20b, the bottom of the outer pocket 22 is prevented from entering the opening of the inner pocket 22.

  Further, when the rib 50 comes on the pocket 22, the rib length L is set to be larger than the width W of the opening of the pocket 22, so that the rib 50 does not enter the opening of the pocket 22.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure showing a 1st Example, (A) is a top view of a carrier tape main body, (B) is sectional drawing in the BB line position of (A), (C) is A- of (A). It is sectional drawing in the A line position. It is an expanded sectional view which shows a part of cross-sectional shape of the pocket of the Example. In the same Example, it shows the case where pockets overlap, (A) is a sectional view showing a portion where the pockets overlap, and (B) is a sectional view showing a portion where the dummy pockets overlap. is there. In this embodiment, the pocket and the dummy pocket are overlapped. (A) is a cross-sectional view of the carrier tape body cut in the longitudinal direction, and (B) is a state of being cut in a direction orthogonal thereto. It is sectional drawing. It is a figure showing a 2nd Example, (A) is a top view, (B) is sectional drawing in the AA line position. It is a figure which shows the pocket in the Example in the state which accommodated the articles | goods, (A) is a top view, (B) is sectional drawing seen from the one side, (C) is from the other side orthogonal to it FIG. It is an expanded sectional view which shows a part of cross-sectional shape of the pocket of the Example. In the same Example, it shows the case where pockets overlap, (A) is a sectional view showing a portion where the pockets overlap, and (B) is a sectional view showing a portion where the dummy pockets overlap. is there. FIG. 5 shows a case where a pocket and a dummy pocket overlap in the same embodiment, (A) is a cross-sectional view seen from the direction indicated as A direction in FIG. 5, and (B) is shown as B direction in FIG. It is sectional drawing seen from the direction shown. It is a figure showing a reference example, (A) is a top view, (B) is sectional drawing of the carrier tape main body longitudinal direction. It is a figure which shows the conventional carrier tape in the articles | goods accommodation state, (A) is a top view, (B) is sectional drawing cut | disconnected in the width direction in the pocket position. It is sectional drawing which shows the overlap part of the conventional carrier tape wound up by the reel. It is sectional drawing which shows the nesting which the bottom part of an outer pocket enters into the opening part of an inner pocket in the overlap part of the conventional carrier tape.

Explanation of symbols

20, 20a, 20b Carrier tape body 22, 22a Pocket 24, 24a Dummy pocket 25a Dummy pocket central portion 25b Dummy pocket end 26 Feed hole 28 Flange portion 30, 30a Pocket wall surface 32 Tapered surface 36 Protruding portion 38 In pocket Stored article 40 Solder terminal

Claims (2)

An embossed hole having an opening on the surface side of the flexible resin carrier tape main body and having an opening in the longitudinal direction of the carrier tape main body at equal intervals and deeper than the thickness of the carrier tape main body is formed as an article storage pocket. In carrier tape,
Between the storage pockets, at least a part of the depth is the same as or deeper than the storage pocket in the same depth direction as the storage pocket, and the article is stored. A dummy pocket is arranged,
The storage pocket has a through hole formed on the bottom surface thereof,
The dummy pocket is formed in such a shape that at least a part of the outer bottom surface protrudes from the opening of the storage pocket when the outer bottom surface is arranged to overlap the opening of the storage pocket. And there is no through hole on the bottom,
The plane size of the bottom surface outside the dummy pocket is formed larger than the plane size of the opening of the dummy pocket,
A carrier tape for storing a small article, wherein the storage pocket and the dummy pocket have different planar shapes of openings. An embossed hole having an opening on the surface side of the flexible resin carrier tape main body and having an opening in the longitudinal direction of the carrier tape main body at equal intervals and deeper than the thickness of the carrier tape main body is formed as an article storage pocket. In carrier tape,
Between the storage pockets, at least a part of the depth is the same as or deeper than the storage pocket in the same depth direction as the storage pocket, and the article is stored. A dummy pocket is arranged,
When the carrier tape body is wound on a reel, the dummy pocket acts to maintain a distance between the adjacent inner carrier tape body and the outer carrier tape body, and the inner carrier Even if the storage pockets overlap with each other in the tape body and the outer carrier tape body, the article stored in the storage pocket of the inner carrier tape body is not damaged. Carrier tape for storage.

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