JPH0246397B2 - RYOTSUBASASASHIKOMIFUAIRUSHIITONOSEIZOHOHO - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention provides a double-wing insertion file sheet into which, when a file is opened to form a double-page spread, a document of approximately the same size as the entire size of the file can be inserted. This invention relates to a new manufacturing method.

(Prior art) For example, the file sheet that can be inserted into both wings is
59-53981, and as shown in FIGS. 7 and 8, the lateral length of the large synthetic resin mount sheet 1 is slightly shorter than the lateral length, and the longitudinal length of the mount sheet 1. Two wing sheets 2 and 3 made of transparent thin synthetic resin having the same length in the vertical direction,
It is formed by folding it in half in the transverse direction, placing it over the mount sheet 1 from both sides of the mount sheet 1, and welding 4 only the top and bottom edges.

This wing insert file sheet has a gap 5 formed between both wing sheets 2 and 3, so when a file is created by stacking many of these file sheets, it is possible to create a document half the size of the file sheet. Not only can it be inserted into a file, but it is also convenient to be able to insert documents that are approximately the same size as the file sheet.

As mentioned above, this double-wing insert file is convenient, but when manufacturing the file sheet, both wing sheets are cut to match the size of the mount sheet 1, and each of these two wing sheets is folded in half to form the mount sheet 1. The method of over-welding has the problem that the manufacturing stage is time-consuming, inefficient, and cannot be automatically produced.

In order to solve this problem, that is, to enable mass production of the above-mentioned wing file sheets, the inventors
We have developed a new manufacturing method to automatically and continuously produce these file sheets with high efficiency, and have already received a patent application.
It was proposed in No. 59-152235.

This already proposed manufacturing method involves the steps of positioning a continuous sheet for a backing sheet and a continuous sheet for both wing sheets having a width approximately twice the width of the continuous sheet for a backing sheet vertically and feeding them out, and transporting these two continuous sheets. a step of covering the continuous sheet for both wing sheets with the continuous sheet for the backing sheet so that both side edges of the continuous sheet for both wing sheets are opposed along the center line of the continuous sheet for the backing sheet, and It includes a step of cutting out the center portions of both sides of the continuous sheet for both wing sheets with a cutter while the sheet is being transported in a covered state, and a seal cutting step of sealing and cutting both continuous sheets at regular intervals thereafter. It is characterized by this.

(Problems to be Solved by the Invention) In the methods already proposed above, both the continuous sheet for the mount sheet and the continuous sheet for both wing sheets use a single continuous sheet. CPP (Cast Poly Propylene) is used for the continuous sheet for both wing sheets.
A sheet will be used. This CPP sheet is extremely desirable as a material with no thickness deviation and high uniformity, but it has the disadvantage of being expensive, resulting in an increase in the cost of the file sheet. This CP
P. sheets are difficult to obtain in small lots, which is convenient when producing large quantities of file sheets, but not when producing small quantities of file sheets.

Compared to the above CPP sheets, IPP (Inflation Polymer) is cheaper and available in small lots.
By using propylene) sheets, it is possible to produce file sheets relatively cheaply and in small quantities.
However, since this IPP sheet is not a single sheet but a continuous tube, the manufacturing method already proposed above cannot be used unless this continuous tube is cut open and processed into a single sheet.

In view of the above points, this invention uses a continuous tube-like sheet as the material for both wing sheets,
The present invention provides a new manufacturing method for automatically and continuously producing both wing file sheets with high efficiency.

(Means for Solving the Problems) For this purpose, in the present invention, a continuous sheet for the mount sheet and a tube-shaped sheet are crushed to make it flat, and the width of the flattened sheet is the same as the width of the continuous sheet for the mount sheet. A step of positioning the continuous tube sheet for both wing sheets vertically and sending it out; a step of cutting out the center portion of one side of the continuous tube sheet with a cutter after sending out the continuous tube sheet for both wing sheets; During the transfer of the continuous sheet and the continuous sheet for both wing sheets from which the center portion of one side has been cut, the continuous sheet for both wing sheets is unfolded, and the cut edge of the unfolded continuous sheet for both wing sheets becomes the continuous sheet for the mount sheet. In the process of covering the continuous sheet for both wing sheets on the continuous sheet for mount sheet so that they face each other along the center line of This method is characterized by including a step of cutting out the center portion of the opposite surface using a cutter, and a seal cutting step of sealing and cutting both continuous sheets at regular intervals thereafter.

(Example) The details of the method of the present invention will be explained below using preferred examples shown in the drawings.

In the figure, reference numeral 11 denotes a continuous sheet for the mount sheet, which is sent out from the roll 10. Reference numeral 12 denotes a continuous tube sheet for double-winged sheets having the same width as the width of the continuous sheet for the mount sheet in the crushed state, which is fed out from the roll 13 and transported. These rolls 10 and 13
are positioned above and below, and both sheets 11 and 12 are guided and transported by guide rollers 14 and 15, respectively.

Immediately after the continuous tube sheet 12 for both wing sheets is sent out from the roll 13, a cutter portion 1 for cutting the central portion of one side of the tube sheet 12 is provided.
6 is placed.

Details of this cutter portion 16 are shown in FIGS. 3 and 4. That is, a pair of cutters 18, 18 are fixed to the immovable part 17 located above the continuous tube sheet 12 to be transferred, and the cutters 18, 18 are
A guide piece 19 is attached to the tip of the tube sheet 12 to guide the two sides of the tube sheet 12 with a slight distance between them. The distance between the pair of cutters 18, 18 is made equal to the gap 5 between the file sheets shown in FIG. Therefore, the center portion of the upper surface (in the illustrated embodiment, the upper surface may be the lower surface) of the tube sheet 12 is cut off by the cutters 18, 18, and removed as the cutting tape 20.

21 in the figure is the continuous sheet 11 for the mount sheet.
This guide roller 21 is a guide roller that guides and transports the continuous sheet 12' for both wing sheets in an overlapping manner.
Expanding pieces 22, 22 for expanding the continuous sheet 12' with the central portion cut out are provided at a position just before the above-mentioned continuous sheet 12' for both wing sheets is expanded by the expanding pieces 22, 22. be done.

Further, immediately after the guide roller 21, guide members 23, 23 for folding the developed continuous sheet 12' for both wing sheets along the edge of the continuous sheet 11 for mount sheet are provided. , 23, the continuous sheet 12' for both wing sheets is covered with the continuous sheet 11 for mount sheet. Through this coating process, both cut edges 24, 24 of the continuous sheet 12' for both wing sheets are made to face each other along the center line (not shown) of the continuous sheet 11 for mount sheet.

Guide rollers 25 and 26 guide the conveyance of both of the continuous sheets in the coated state, and these continuous sheets are moved further downstream by drive rollers 27 and 27.
It is designed so that it can be pulled and transported by.

A cutter portion 28 is provided between the guide roller 25 and the drive roller 27 for cutting off the center portion of the uncut lower surface of the continuous sheet 12' for both wing sheets with a cutter.

This cutter portion 28 is shown in FIGS. 5 and 6. That is, the bicontinuous sheet 11 to be transported,
A pair of cutters 30, 30 are fixed to the fixed part 29 located below the cutter 12'.
A guide piece 31 is attached to the tip of the sheet 0, which is interposed between the lower surface portions of the continuous sheet 11 for mount sheet and the continuous sheet 12' for both wing sheets, and guides these sheets at a slight distance. The distance between the pair of cutters 30, 30 is made equal to the gap 5 between the file sheets shown in FIG. Therefore, the cutters 30, 30 cut out the central portion of the continuous sheet 12' for both wing sheets, which covered the lower surface of the continuous sheet 11 for mount sheet, and remove it as a cutting tape 32.

In FIGS. 5 and 6, the cutter and guide piece 30 and guide piece 31 are shown in imaginary lines, which are positioned symmetrically above. This device is intended to be used also as the device used in the method of the invention.

In the figure, 33 is a sealing mechanism that seals continuous sheets at regular intervals, and has two sealers that are parallel to each other with a slight interval between them. The continuous sheet for sheets is sealed by two slightly spaced seal lines. A cutter 34 cuts between the two seal lines sealed by the sealing mechanism, and the cutter and sealing mechanism seal and cut the continuous sheet into file sheets one by one. and then send it out.

(Effects of the Invention) As described above, in the method of the present invention, in the process of transporting the continuous sheet for the backing sheet and the continuous tube sheet for both wing sheets, first, the central portion of one side of the continuous sheet for both wing sheets is cut out, and After that, this continuous sheet with the center part cut out is spread out, covered with a continuous sheet for backing paper and transferred, and the center part of the remaining one side of the continuous sheet for both wing sheets is cut out, and then this continuous sheet is spread out at regular intervals. Since the sealing and cutting process is carried out, it is possible to automatically and continuously manufacture file sheets using tube-shaped continuous sheets for both wing sheets, which can be obtained even in small lots and at low cost. It has the advantage of being inexpensive to produce and has the effect of achieving the intended purpose well.

[Brief explanation of drawings]

The drawings show the method of the present invention in which the method of the present invention is carried out. Fig. 1 is a plan view of its flow, Fig. 2 is a front view thereof, and Fig. 3 is a cutter portion for cutting off the center portion of the upper surface of a continuous tube sheet. , FIG. 4 is a side view of the same, FIG. 5 is a front view of the cutter section that cuts out the central part of the lower surface of the continuous sheet, FIG. 6 is a side view thereof, and FIG. 7 is a view showing both wing file sheets. FIG. 8 is an exploded perspective view thereof. DESCRIPTION OF SYMBOLS 11... Continuous sheet for mount sheet, 12... Continuous tube sheet for both wing sheets, 16... Cutter part, 22... Expansion piece, 23... Guide member, 28
... Cutter part, 33 ... Seal mechanism, 34 ...
Cutter.

Claims (1)

[Scope of Claims] 1. A continuous sheet for the mount sheet and a continuous tube sheet for the double wing sheet, which is made of a tube-like sheet that is flattened by crushing it and has the same width as the continuous sheet for the mount sheet in the crushed state, are placed vertically. a step of positioning and feeding out and transporting the continuous tube sheet for both wing sheets; a step of cutting out the center portion of one side of the continuous tube sheet with a cutter after sending out the continuous tube sheet for both wing sheets; and a step of cutting out the center portion of one side of the continuous sheet for the mount sheet. In the middle of transporting the continuous sheet for both wing sheets, the continuous sheet for both wing sheets is unfolded, and the cut edges of the unfolded continuous sheet for both wing sheets are opposed along the center line of the continuous sheet for mount sheet. In the process of covering the continuous sheet for both wing sheets onto the continuous sheet for mount sheet, and during the transfer of both continuous sheets in the coated state, the central part of the opposite side of the continuous sheet for both wing sheets that has not been cut out is cut with a cutter. 1. A method for manufacturing a double-winged file sheet, comprising: a step of cutting the continuous sheet by cutting it; and a seal-cutting step of sealing and cutting both continuous sheets at regular intervals.