JPH0330258Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a packaging container made of paper such as corrugated paper or carton paper for storing electronic components.

[Conventional technology]

BACKGROUND ART Conventionally, assembly work for semiconductor integrated circuits such as LSIs has generally been carried out in so-called clean rooms, where the amount of dust contained in the indoor air is extremely reduced.

In this case, a so-called tape carrier, in which small electronic components such as resistors and capacitors to be mounted on an integrated circuit are arranged in rows on a strip of plastic tape, is used to make a so-called paper carrier such as corrugated cardboard. The packaging container is stored in a box-shaped packaging container, the packaging container is brought into the clean room, the lid of the packaging container is opened,
One end of the tape carrier is taken out and attached to an automatic parts supply device.

As is well known, the paper packaging containers are generally made of paper pulp made of vegetable fibers as the main raw material.
In particular, on the punched end faces of corrugated paperboard, the front and back flat plates and the end face of the corrugated plate sandwiched between them are exposed to the outside, and during handling, the fibers fall off from the wide front and back sides of the packaging container and the cut end face, and the fibers fall out of the clean room. There was a problem in that the content of dust was significantly increased, and fibers adhered to the surface of semiconductors during assembly, resulting in failures and accidents.

Therefore, Japanese Utility Model Application Publication No. 58-194120 discloses a deployable core plate in which a box-shaped container body and a lid are attached in series by punching out cardboard, etc., and synthetic resin sheets on both the front and back sides of the core plate. It is disclosed that the front and back synthetic resin sheets are polymerized and bonded together using a welder at the peripheral edge of the core plate and at the elongated holes in the folds.

[The problem that the idea attempts to solve]

By the way, in this prior art, a protruding piece made of only synthetic resin (larger in height than the end face) is provided protrudingly at the end of the end face adjacent to the bottom face of the container body,
An adhesive layer with release paper pasted is provided on the inner surface of this protruding piece.

According to this configuration, the end surface is made to stand up against the bottom surface, the folding piece is brought into contact with the inner surface of this end surface, and in this state, the release paper is peeled off and the protruding piece is pasted from the inner surface of the folding piece to the bottom surface. Then, the container body can be assembled.

However, in this configuration, the overlapping portion between the end face and the folding piece, which is one side of the container body, has extremely high rigidity due to the adhesion of the protruding piece, and cannot be bent.

Therefore, in order to take out the items inside the packaging container, the lid must be completely opened from the container body, making the task of taking out the items cumbersome.

Particularly, in the case of a tape carrier in which a strip-shaped tape carrier is sequentially pulled out along its longitudinal direction, there is a problem in that the lid becomes bulky if the lid is left open.

The present invention aims to solve this problem.

[Means to solve the problem]

Therefore, the present invention has developed a box-shaped packaging container for storing a strip-shaped tape carrier that stores electronic components in rows, from paper such as corrugated paper or carton paper.
Consisting of a piece of paper that is cut and formed into a developed shape that is formed in a continuous manner with a predetermined container body and lid, or a developed shape that is formed to take the shape of each of the container body and lid, and Both the front and back sides of the unfolded shape of the paper piece are covered with a pair of front and back thin films made of soft synthetic resin that extend from the outer periphery to the outside, and the pair of front and back thin films are sealed so as to cover the cut periphery of the paper piece. , on one side of the container body and the lid, a linear folding line for forming a take-out opening for pulling out the strip-shaped tape carrier in the longitudinal direction;
It is provided so as to extend in a direction substantially perpendicular to the drawing direction.

[Functions and effects of the invention]

As described above, according to the present invention, both the front and back sides and the outer periphery of the wide paper strip constituting the container body and lid of a packaging container are covered with a pair of front and back thin films made of soft synthetic resin. Since the film is sealed so as to surround the outside of the outer periphery of the unfolded shape of the paper piece and the punched holes such as perforations, when the container main body and the lid are assembled in a continuous manner, or when the container main body When assembling the sheets into the lid body, the folded portions of the sheets of paper are covered with a pair of soft thin synthetic resin films on the front and back sides, so that the folding work is not difficult.

Then, not only the front and back sides of a wide piece of paper such as corrugated paper, but also the outer periphery of the unfolded shape and the cut edges such as punched holes are covered with a pair of thin films made of soft synthetic resin on the front and back. Since the packaging is sealed by heat-sealing a pair of thin films on the front and back so that the entire circumference is covered, even if the packaging container is made of paper, from which fibers tend to fall off from both sides of the wide front and back sides and the cut edges, There is no leakage from the sealed portion of the pair of thin films on the front and back sides.

Further, on one side of the container body and the lid, a linear folding line for forming a take-out opening for pulling out the strip-shaped tape carrier in the longitudinal direction is provided so as to extend in a direction substantially perpendicular to the pull-out direction. If the paper is folded along the folding line while the container body is covered with the lid body, that area will immediately open as the outlet for the tape carrier, and the paper will not be bulky. The tape carrier can be pulled out very easily.

Furthermore, since the wide sides and folding points of the paper strips are covered with a thin film made of soft synthetic resin, when the long tape carriers are continuously removed from the packaging container, the tape carriers are Even if the wide surface and the folded line portion rub against each other, no dust is generated, and the dust content in the air within the clean room does not increase.

Therefore, the interior of the clean room can be maintained in a clean state with less dust at all times, and it is possible to reduce the defective rate associated with semiconductor assembly work.

Furthermore, since thin films made of soft synthetic resin are placed on both the front and back sides of the paper strips and the cut ends are sealed by heat sealing, etc., processing is easy and the paper strips can be easily removed during subsequent container assembly work. While the container can be easily bent flexibly, the cost can be reduced compared to the case where the entire container is made of synthetic resin.

〔Example〕

Next, an embodiment of the present invention will be described. The packaging container 1 of the present invention includes a container body 2 and a lid 3 made of corrugated paper, and both front and back wide surfaces and cut end surfaces of the container body 2 and lid 3. It consists of a pair of front and back thin films 23, 23 made of soft synthetic resin that cover the outside of the outer periphery and are heat-sealed and sealed at a position near the outer periphery.

The packaging container 1 is assembled into a box shape by folding corrugated paper in which the container body 2 and the lid 3 are expanded in a continuous manner as described later.As shown in FIGS. 3 and 4, the packaging container 1 is a corrugated cardboard sheet consisting of a pair of flat cardboard plates 4, 4 on the front and back sides and a corrugated cardboard plate 5 stuck at an appropriate interval between the two plates 4, 4, as shown in the dotted chain line in FIG. It consists of a piece of paper that is punched into a shape.

To explain this piece of paper in more detail with reference to FIG. 3, the bottom piece 6 of the container body 2, and one side of the bottom piece 6,
There is a rear wall piece 7 connected to this, a lid piece 8 that is connected to the rear wall piece 7 and forms the lid 3, and a locking piece 9 for insertion that is connected to the rear side of the lid piece 8, The space between them can be bent along the dashed-dotted line in FIG. 3 (it can be bent along the dashed-dotted line below).

On the front side of the bottom piece 6, there is an inner wall piece 10 connected to the bottom piece 6 and an outer wall piece 1 connected to the inner wall piece 10.
1, and one side of the outer wall piece 11 has a protrusion 12,
12 are integrally formed, and when the outer wall piece 11 is bent in the direction of the bottom piece 6 along the bending point 13 connected to the inner wall piece 10, engagement holes 14, 14 punched in the bottom piece 6 are formed. The protrusion 12 is fitted into the protrusion 12 .

Further, the bending point 13 becomes the upper edge of one side of the container body 2, and by punching and punching a long groove-shaped insertion hole 15 along the bending point 13, the lid piece 8
The locking piece 9 for insertion can be fitted.

On both the left and right sides of the bottom piece 6, there are left and right side wall pieces 1.
6 and 16 are arranged in series, and each side wall piece 16 has an overlapping piece 17 that comes into contact with the inner surface of the rear side wall piece 7 when bent at the dashed-dotted line position, and an overlapping piece 17 that is bent along the bending position 13. Tongue pieces 18 that can be inserted into the gap between the inner wall piece 10 and the outer wall piece 11 when the inner wall piece 10 and the outer wall piece 11 are opened are provided in a row.

Note that the round holes 19 bored in the bottom piece 6 and the left and right side wall pieces 16, 16 are positioning holes when setting it in the supply section of an automatic parts feeder (not shown). , 16 are provided with folding lines 20a, 20b, and the end of the lid piece 8 is also provided with a folding line 21 for taking out the tape carrier 22, which is a stored article.

A pair of thin films 23, 23 made of soft synthetic resin such as polyethylene are disposed on the front and back wide sides of the planar sheet of paper developed in this way. Then, both the front and back sides of the expanded shape of the paper piece are covered so as to extend outward from the outer periphery thereof. Then, the pair of front and back thin films 23, 23 are heat-sealed so as to surround the outer periphery of the unfolded shape of the paper and the edges of the perforated holes and punched holes, thereby sealing 2.
4.

Therefore, in FIG. 3, the solid line locations indicate 24 locations where the front and back pairs of thin films 23, 23 are sealed;
Dotted lines indicate the expanded outer periphery of the paper and punched holes such as the engagement hole 14, the insertion hole 15, and the round hole 19.

In this configuration, when the unfolded sheet of paper sealed 24 with the pair of front and back thin films 23, 23 is folded along a predetermined folding line and assembled, the container body 2 and lid body as shown in FIG. A packaging container 1 is formed in which 3 are integrally arranged in a row, and inside the packaging container 1,
What is necessary is to house a so-called tape carrier 22 in which small electronic components 25 are arranged in a row at regular intervals on a belt-shaped tape made of soft synthetic resin.

When it is desired to take out the tape carrier 22 from the packaging container 1, the end portion of the lid body 3 is bent upward from the folding line 21, and the upper portion of the side wall piece 16 is bent outward from the folding lines 20a and 20b. This creates an outlet for pulling out the strip-shaped tape carrier 22 in the longitudinal direction, or the lid can be opened by pulling out the insertion locking piece 9 of the lid piece 8 from the insertion hole 15, and the tip of the tape carrier 22 can be opened from there. can be extracted.

In other words, the tape carrier 22 can be pulled out very easily while the top surface of the container body 1 is covered with the lid 3, and in that case, the wide side and folded portion of the paper strip are covered with a thin sheet made of soft synthetic resin. Because it is covered with a film, even if the tape carrier rubs against the wide side of the paper strip and the folded line during the process of continuously taking out long tape carriers from inside the packaging container, no dust will be generated and the tape carrier will remain clean. There is no increase in the dust content in the indoor air.

In any case, the inner and outer wide surfaces of the packaging container 1 are
In addition to being covered with the pair of thin films 23, 23 on the front and back sides, the cut ends of paper pieces such as corrugated paper are all surrounded and sealed with the pair of thin films 23, 23 on the front and back sides, so even in a clean room. Dust generation can be eliminated.

It goes without saying that the paper pieces of the present invention can be made of not only corrugated paper but also thick paper such as ordinary carton paper. Furthermore, a thin film that has been treated to prevent static electricity can also be used.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the packaging container with the lid open, FIG. 2 is a perspective view of the packaging container when the tape carrier is pulled out with the lid closed, and FIG.
The figure is a developed plan view of the packaging container, and FIG. 4 is an enlarged sectional view taken along the - line in FIG. 1...Packaging container, 2...Container body, 3...Lid, 23, 23...Thin film, 24...Sealing,
6... Bottom piece, 7... Rear wall piece, 8... Lid piece, 9...
...Locking piece, 10...Inner wall piece, 11...Outer wall piece, 12...Protrusion, 13...Bending portion, 14...
...Engagement hole, 15...Insertion hole, 16, 16...Right and left side wall pieces, 18...Language piece, 20a, 20b, 21
...Folding line, 22...Tape carrier.

Claims (1)

[Scope of utility model registration request] A box-shaped packaging container for storing a strip-shaped tape carrier containing electronic components arranged in rows is formed from paper such as cardboard or carton paper in a continuous manner with a predetermined container body and lid. Consisting of a piece of paper that is cut and formed into a developed shape that is shaped to fit the shape of the container body and the lid,
Both the front and back sides of the unfolded shape of the paper piece are covered with a pair of front and back thin films made of soft synthetic resin that extend from the outer periphery to the outside, and the pair of front and back thin films are sealed so as to cover the cut periphery of the paper piece. A straight folding line for forming a take-out opening for pulling out the strip-shaped tape carrier in the longitudinal direction is provided on one side of the container body and the lid so as to extend in a direction substantially perpendicular to the pull-out direction. A paper packaging container featuring: