JP2826507B2 - Management form - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a form used by folding a single sheet of paper, and more particularly to a management form used for process management or the like by stacking long and short pages.

[0002]

2. Description of the Related Art The structure of a conventional management form is shown in FIG.
As shown in the perspective view of FIG. 2B and the developed plan view of FIG. 2C, the heading portion 12 of the first form 10 is higher than that of the other forms 11, and the width of each page is the same. It has a structure. The forms 10, 11 can be entered on the front and back. The heading portion 12 has a product name and a number for identifying a lot, and only the first sheet is longer in order to confirm the portion 12.

[0003] This is because the management table is used, for example, there are about 450 semiconductor device manufacturing steps, and standard paper is large or large in number, making it difficult to manage. This is because it was necessary to attach this management table to the product, so that it was necessary to make it smaller than the A4 size.

[0004] This management form is used to record the history of each manufacturing process, and is attached to the product. The management form is taken every time the product is processed, and the process history is entered. Normally, this form is completely closed as shown in FIG. 2 (a). However, when the form is used, it can be opened and closed not only to fill in this history but also to confirm the work order and investigate various improvement activities. Is done.

[0005]

When the conventional management form described above has been used for a long time, a crack is formed at the corner of the boundary between the first form and the second form having a long length. The form may be torn. If this form is torn, garbage will enter from that part, and garbage generated from the management form will adhere to semiconductor products etc. that are stored and transported together with this management form, and the production yield of semiconductor products will decrease. Problem arises.

The manufacturing process of this semiconductor product involves a large number of steps, and the management form must be opened and closed many times in the product. Therefore, a boundary between a long page and a short page is required. This is because stress concentrates on the edge, the strength decreases along the boundary line, and if there is a cut after cutting in the longitudinal direction, the weakened portion and the cut direction overlap, and a crack is easily formed from that portion.

Accordingly, an object of the present invention is to open a form,
An object of the present invention is to provide a management report in which a crack is not loved at a corner between a long page and a short page even when closed.

[0008]

According to the structure of the present invention, in a management form in which pages having different lengths and the same width are formed on one thick sheet of paper, and the pages are folded at the boundaries of these pages, It is characterized in that a corner of a connecting portion between a long page and a short page in each page has an arc shape from the outside of the form surface, and the arc corner is 90 degrees from the center of the arc. Or about 270 °.

According to the configuration of the present invention, since the corners formed by the long and short pages of the form are formed in an arc shape, the form is opened or closed, and the strength of the boundary of each page is reduced. Even so, since the strength of the cut surface is different from the direction in which the strength is weakened, no crack is formed from that portion, and the service period can be extended.

[0010]

1A and 1B are perspective views illustrating an embodiment of the present invention. In the present embodiment, FIG.
(A), the corner portions make a long page and short pages,
The cutout portion 13 has an arc shape from the outside of the form surface .

In the cutting method in this case, the shape of a die for cutting each page may be as shown in FIG.
After cutting the corner at a right angle like a conventional management form,
As shown in (b), the corner portion 14 may be formed by punching out with an arc-shaped punch.

[0012] Even if the arc shape is not an accurate arc, the direction in which the paper is cut may be shifted with respect to the boundary line of the page where the strength is weakened by opening and closing.
Therefore, any shape may be used as long as the tangent line when cutting the boundary line does not overlap at least the boundary line. However, if there is a corner in the shape to be cut in order to eliminate the corner, the corner is weakened, so that an arc shape is preferable.

This management form is placed on a semiconductor product or the like in the state shown in FIG. 2A, and when one operation is started and completed, it is opened and confirmed as shown in FIG. 2B. Perform the recording. In this case, a lateral force is applied to the management form.

[0014]

As described above, according to the present invention, no matter how many times the management form is opened and closed and opened and closed, a crack is formed from the corner of the boundary between the long and short pages. Will not enter. That is, even if the boundary of each page is weakened, the tangents of the corner cuts made by the long and short pages of the form are not in the same direction as the weakened boundary, so cracks will form from there Is gone.

[Brief description of the drawings]

FIG. 1 is a perspective view of a management form explaining an embodiment of the present invention.

FIG. 2 is a plan view, a perspective view, and a developed plan view showing a conventional management form.

[Explanation of symbols]

 10 Form (first sheet) 11 Form 12 Heading part 13, 14 Arc-shaped corner

Claims (2)

(57) [Claims] 1. A management form used to form pages having different lengths and the same width on one thick sheet of paper, and to fold them at the boundaries of these pages, and The corner of the connecting part with the short page is an arc from the outside of the form surface
A management form characterized by having a form. 2. An arc-shaped corner portion is located 9 mm from the center of the arc.
2. The management form according to claim 1, comprising a portion of about 0 degrees or about 270 degrees.