JPH05305671A - Method for bonding end sheets and partition sheets - Google Patents

Abstract

PURPOSE:To thermally bond the side edges of a large number of parallelly arranged partition sheets to two end sheets arranged in parallel at the same time. CONSTITUTION:Gauge plates 13 and partition sheets 21 are alternately stacked on a surface plate 1 and the single end adhesive flaps 24 of two end sheets 23 are held between the surface plate and the lowermost gauge plate and downwardly pressed by a press plate 12 and the side edge adhesive flaps of the partition sheets are thermally bonded to the end sheets at the same time by advancing heating press plates 15 to produce a file half-finished product.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of adhering an end sheet of a file for storing documents and the like into a side-by-side pocket and a partition sheet.

[0002]

2. Description of the Related Art As shown in FIGS. 6 and 7, a conventional file includes a pair of cover sheets 2 and 2 which are bent and opposed to each other via a bottom sheet 1 made of a synthetic resin and one cover sheet. 2. A flexible lid sheet 3 is connected to the upper edge of the sheet 2, and two end sheets 4 of synthetic resin are bent in zigzag by the fold lines 5 arranged at equal intervals in parallel with the edges, and both cover sheets are formed. Both edges of the end sheet 4 are heat-bonded to both edges of the facing surfaces of the sheets 2 and 2, and both edges of each partition sheet 6 of synthetic resin are heat-bonded 7 to the surface between the fold lines 5 of the end sheet 4. ..

[0003]

In the file as described above, since the side edge of the partition sheet is heat-bonded (using a hot pressing plate) to the surface between the fold lines of the end sheet, the heat-bonding is done manually one by one. Do in. That is, first, the end sheet is supplied below the heating pressing plate, and the end sheet is positioned using a jig so that the lower edge surface of the heating pressing plate and the bonding edge of the end sheet are aligned with each other.

Next, the side edges of the partition sheet are superposed on the end sheet, and the edge of the partition sheet is aligned with the bonding line of the end sheet by using a jig.

Then, the heating push plate is lowered to thermally bond the side edges of the partition sheet to the end sheet.

For this reason, it takes a great deal of time to heat-bond and cannot be mass-produced, resulting in an increase in cost.

There is also a problem that defective products are produced unless the side edges of the partition sheet are heat-bonded in a uniform size with respect to the broken line and in parallel with the broken line.

Therefore, an object of the present invention is to provide a method in which the side edges of a large number of partition sheets arranged in parallel are heat-bonded to two end sheets arranged in parallel.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is a partition sheet of synthetic resin in which a gauge plate is provided on a surface plate, and the margins of the gauge plate on both side edges overlap each other. And a predetermined number of sheets are stacked, and the adhesive margin that is continuous from one edge of the two synthetic resin end sheets is sandwiched between the surface plate and the lower surface of both side edges of the lowest gauge plate. Overlap both sides of the upper surface of the uppermost gauge plate with an adhesive margin continuous from the edge, and then lower the pressure plate while lowering the pressure plate, the uppermost gauge plate, and the surface plate and the lowermost gauge plate. After sandwiching the adhesive margin of the sheet, and then by advancing each of the heating push plates, press the end sheet and the adhesive margin of the partition sheet against both side surfaces of each gauge plate to heat-bond the overlapping surfaces, and then press the hot push plate. rear And also it increases the press plate is obtained by employing the method of bonding the end sheet and the partition sheet was drawn accordingly later the respective gauge plate.

[0010]

According to the present invention, which is bonded in this manner, the parallel spacing of the partition sheets whose side edges are heat-bonded to both end sheets is made uniform by the respective gauge plates stacked via the partition sheets.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bonding method according to the present invention will be described below with reference to the accompanying drawings.

In the figure, 11 is a surface plate, 12 is a pressure plate arranged above the surface plate 11 so as to move up and down by contraction and extension of a cylinder (not shown), and 13 is a metal gauge plate. .. The width of the gauge plate 13 (the front-back direction in FIG. 1 and the vertical direction in FIG. 3) is equal to the width of the partition sheet 21 made of synthetic resin, and the length between both side edges is the same as the width of the partition sheet 21. It is equal to the dimension between the margins 22 of the edge.

Reference numeral 23 is a synthetic resin end sheet having adhesive margins 24 projecting in one direction (back surface direction) at both edges.

First, as shown in FIG. 1, a required number of gauge plates 13 and partition sheets 21 are alternately stacked on a surface plate 11.

Both the bonding margins 22 of each partition sheet 21 between the gauge plates 13 are all directed toward the surface plate 11, and the bonding margins 22 are superposed on the side edge surfaces of the gauge plate 13.
The partition sheets 21 are not stacked on the uppermost gauge plate 13.

Further, the one end adhesive margin 24 of the two end sheets 23 arranged in parallel is sandwiched between the surface plate 11 and the lowermost gauge plate 13, and the other end adhesive margin 24 is formed on both side edges of the upper surface of the uppermost gauge plate 13. Stack them on the section. Of course, both ends sheet 23
In this case, the slack is prevented, and the surfaces of the end sheets 23 are overlapped with the respective adhesive margins 22.

Then, the pressure plate 12 is lowered and the platen 1
The gauge plate 13, the adhesive margin 24, and the partition sheet 21 are pressed onto the top plate 1, and the top plate 1
The adhesive margin 24 is pressed into 3.

After that, the heating pressing plate 15 which is guided by the guide member 14 in each of the multi-stages and is advanced collectively by the action of the cylinder is pressed against the surface of the end sheet 23 where the bonding margin 22 overlaps, so that the end sheet 23 is pressed. Each bonding margin 22 is heat bonded.

After thermal bonding, first, the heating press plate 15 is retracted, the pressure plate 12 is raised, and then the respective gauge plates 13 are pulled out. Then, the end sheet 23 and the partition sheet 21 as shown in FIG. The semi-finished product A for files having the side edges thereof heat-bonded is manufactured.

The end sheet 23 is bent in a zigzag shape by a large number of fold lines 25 at equal intervals parallel to the edge of the heat-bonded rear end sheet 23 of the partition sheet 21, and is bent through the synthetic resin bottom sheet 1. Adhesive margins 24 are heat-bonded to both side edges of the facing surfaces of the freely facing opposite cover sheets 2 to manufacture a file as shown in FIG.

[0021]

As described above, according to the present invention, the side edges of a large number of partition sheets arranged in parallel with two end sheets can be heat-bonded at the same time. Therefore, mass production is possible, and the price can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional front view of the semi-finished file product manufactured in the same as above.

FIG. 3 is a perspective view of a semi-finished file product.

FIG. 4 is a cross-sectional plan view of the file.

FIG. 5 is a perspective view of a file

FIG. 6 is a perspective view of a conventional file.

FIG. 7 is a perspective view showing the main part of the above.

[Explanation of symbols]

 11 Surface Plate 12 Pressurizing Plate 13 Gauge Plate 14 Guide Member 15 Heating Press Plate 21 Partition Sheet 22 Adhesion Allowance 23 End Sheet 24 Adhesion Allowance 25 Broken Line A File Semi-finished Product

Claims (1)

[Claims] 1. A predetermined number of synthetic resin partition sheets are stacked on a surface plate such that a gauge plate and synthetic resin partition sheets are overlapped on both side edge surfaces of the gauge plate so as to overlap the adhesive margins extending from both side edges. The bonding margin that is continuous from one edge is sandwiched between the surface plate and the bottom surface of both edges of the lowest gauge plate, and
Overlap the adhesive margins from the other edge of both end sheets on both upper edges of the uppermost gauge plate, and then lower the pressing platen while lowering the pressing platen, the uppermost gauge plate and the bottom plate. The adhesive margin of the both-end sheets is sandwiched between the gauge plate and the adhering margins of the end sheet and the partition sheet are pressed against both side surfaces of each gauge plate by the respective heating pressing plates that move forward, and the overlapping surfaces are heat-bonded. After that, the heating pressing plate is retracted and the pressure plate is raised, and then the end sheet from which the respective gauge plates are removed and the partition sheet are bonded.