JPS61217375A - Packaging box for tabular body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is applicable to Lm! : D, relates to a packaging box for plate-shaped bodies for packaging lead frames and the like used in semiconductor devices such as ICs.

Conventional technology In recent years, with the increase in demand for semiconductor devices, the demand for lead frames used in semiconductor devices has also increased, and the development of packaging boxes to securely package lead frames has become important. I will explain about the packaging box.

Conventionally, packaging was carried out using a packaging box made of expanded polystyrene as shown in FIG. Inside the packaging box, there are a plurality of partitions 11 that rise from the bottom 1o. The lead frame is made of a very thin metal plate that has been precisely machined, and the lead frame is not damaged. In order to securely package the lead frame, it was necessary to protect the side and end surfaces of the lead frame by wrapping them in sheets such as polystyrene.

For this reason, conventionally, a side protection sheet 13 longer than the length of the box is spread along the long side direction of the packaging box as shown in FIG. 6 on the bottom surface of the packaging box, and then Each partition 1
A sheet 14 for end face protection was laid along the partition 11 between the two lead frames 12, and the lead frame 12 was housed thereon along the partition 11. Both ends of the sheet 13 protruding from both ends of the packaging box are folded back to cover the upper surface of the lead frame 12. After the lead frame 12 is placed on the sheet 14 spread along each partition 11, the end portion thereof is folded back to cover the lead frame 12. FIG. 7 is a cross-sectional view of the main part when the packaging box shown in FIG. 6 is cut along the line C-at, and FIG.
,, - is a sectional view showing a state in which the frame is stored.

Problems to be Solved by the Invention However, in the packaging box described above, it is necessary to lay separate sheets 13 and 14 between each partition body 11 in order to protect one end surface of the lead frame 1.2. However, there was a problem in that it required a lot of work to package the product. An object of the present invention is to easily protect one end surface of a plate-shaped body such as a lead frame with a single sheet.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a partition that rises from the bottom inside the packaging box body, and provides a partition between the side edge of the partition and the side wall of the packaging box. This is done by providing a gap between the two.

Effect With the above configuration, when the plate-like bodies are stacked and stored, one end surface can be covered and protected with a single sheet.

EXAMPLE An example of the present invention will be described below. FIG. 4 is a perspective view of a packaging box for a plate-shaped object in this embodiment. 1 is a packaging box body % 2 is a partition provided perpendicularly to the bottom surface 3 of the packaging box body 1, and has gaps 5 and 6' between it and the side walls 4 and 4' inside the packaging box body 1. It is provided. side wall 4
．． 4' is configured to be longer than the length of the plate-like body. Second
The figure is a sectional view taken along line AA' of the packaging box in FIG. 4, and FIG. 1 is an enlarged view of the main part of FIG. 2. In FIGS. 1 and 2, grooves 6 and 6' having the same width as the gap 5 are provided on the side wall side of the bottom portion 3. 7 and 8 are sheets for protecting the end surfaces of the plate-shaped bodies, and are inserted into the gaps 5 and 6' with one end wrapped around plate-shaped spacers 9 and 9';
The leading ends of spacers 9 and 9' are inserted into grooves 6 and 6'. The other ends of the sheets 7 and 8 cover the upper surface of the packaging box body 1 and overlap each other.

FIG. 3 is a sectional view showing a state in which the lead frame is housed in the main packaging box. A sheet 13 similar to the conventional example is laid on a packaging box body 1, a lead frame 12 as a plate-shaped body is housed, and both ends 5-1 of the sheet 130 are folded back to cover the upper surface of the lead frame 12. On the other hand, end face protection sheets 7 and 8 are wrapped around plate spacers 9 and 9' and inserted into the gaps 5 and 5' between the end face portion 121L of the lead frame 12 and the inner wall surface of the packaging box, as shown in FIG. The plate-like spacers 9 and 9' that are
and 5', the end face portion 121L of the lead frame 12 is protected and the lead frame 12 is fixed within the packaging box body.

As described above, in this embodiment, a gap 6.5' is provided between the partition body 2 and the side walls 4 and 4' inside the packaging box.
．． By inserting the end face protection sheets 7 and 8 into the lead frame 5', one end face of the lead frame 12 can be protected by one end face protection sheet 7 or 8. In addition, by wrapping the end face protection sheets 7 and 8 around the plate spacers 9 and 9' and inserting them into the package, it is possible to easily insert the sheet and also to securely fix the lead frame 12 inside the packaging box. .

Effect of the invention 6 ・＼1 The present invention has a partition body that rises from the bottom inside the packaging box body,
By creating a gap between the side wall of the packaging box body and inserting the edge protection sheet into the gap, it is possible to protect one end of the plate with a single sheet. It is possible to reduce the number of steps involved in packaging.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a main part of a packaging box for a plate-shaped object according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the packaging box, and FIG. 3 is a cross-sectional view showing the packaging box in use. Figure 4 is a perspective view of the packaging box body of the packaging box, Figure 5 is a perspective view of the packaging box body of the conventional packaging box, Figure 6 is a sectional view of the packaging box, and Figure 7 is the packaging box. FIG. 8 is a sectional view of the main part of the main body, and FIG. 8 is a sectional view of the main part of the packaging box. 1... Packaging box body, 2... Partition body, 3
...Bottom part, 4...Side wall, 6...
··gap. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3 Figure 5 Figure 6 Figure 1113 If +rxf tQ
tt t, QFigure 7 Figure 8

Claims (1)

[Claims] A packaging box for a plate-shaped object, in which a partition body rising from the bottom is provided inside the packaging box body, and a gap is provided between a side end of the partition body and a side wall of the packaging box body.