JP3315669B2 - Method of manufacturing holder for storing documents etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a holder for storing documents and business cards so as to sandwich the documents and business cards.

[0002]

2. Description of the Related Art As a conventionally known document storage holder, for example, as shown in FIGS.
A two-dimensional synthetic resin tape 5 is interposed between two synthetic resin sheets 3 and 4 which have a rectangular planar shape and form a document storage part 2 along one side of the document storage holder 1. In the range of the reinforcing portion, a locking portion 6 cut into a substantially T-shape as a file means is formed at an appropriate interval along the one side portion, and the document storage holder 1 is mounted. The document 7 is placed in the document storage unit 2 on the upper side in the upright state.
There is one in which an opening 8 for taking in and out is formed.

However, in order to reinforce the locking portion 6, a reinforcing synthetic resin tape 5 is interposed between two synthetic resin sheets 3 and 4 along one side. 5 has to be prepared, and this tape 5 has to be held between two synthetic resin sheets 3 and 4 so that the cost is increased.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a holder for storing inexpensive documents which can easily reinforce the formation of the file means. It is intended for.

[0005]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention relates to a method of manufacturing a holder for storing documents and the like made of synthetic resin, comprising a tube-shaped flat main body. The main part is cut along the longitudinal direction, and a long part having a substantially U-shaped cross section cut off from the main part is put on one side of the main part. Forming an infinite number of spot-shaped fused portions along one side of the main body portion on the portion covered with the shaped portion, of the opposing sides orthogonal to the longitudinal direction of the main body portion formed in a tube shape, One side is left open, and the other side is closed by heat-sealing the two sheet portions together, and at an appropriate interval along the one side within the range of the spot-shaped fused portion. It is necessary to form file means that can be It is an. The present invention also provides
The gist is that the file means is a locking portion cut into a substantially T shape. Further, according to the present invention, the file means is a hole. The gist of the present invention is that the file means is a locking portion having a circular hole and a cut formed in a tangential direction of the hole.

According to this structure, the innumerable spot-like fusion parts are formed along one side of the storage holder in which the file means is formed, so that the file means is reinforced. Compared with the case of interposing a reinforcing synthetic resin tape as in the conventional example, the formation of the file means can be easily reinforced and the cost can be reduced. In particular, the storage holder manufactured according to the present invention is made of synthetic resin, uses a tube as a material, and has a substantially U-shaped cross section that covers one side of the main body and the main body is made of the same material. Therefore, there is no difference in heat shrinkage between the main body portion and the elongated portion at the reinforcing portion formed by spot fusion.
Further, it is not necessary to separately prepare a long portion for reinforcement by spot fusion, and a long portion cut off from one side of the main body is used, so that cost can be reduced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment will be described with reference to FIGS. 1 to 11. The method for manufacturing a document storage holder according to the first embodiment of the present invention is made of synthetic resin and formed into a tube, that is, a tube. One side portion of the main body 11 in which the cut film is flattened is cut along the longitudinal direction, and the elongated portion 12 having a substantially U-shaped cross section cut off from the main body 11 by this cutting is formed. On one side of the main body 11 and an elongated portion 12
An infinite number of spot-like fusion parts 13 are formed along one side of the main body 11 on the portion covered with the main body 11, and the inside of the opposing sides orthogonal to the longitudinal direction of the main body 11 made in the shape of a tube. ,
One side is kept open, and the other side is closed by heat-sealing the two sheet portions 14, 14 constituting the main body 11, and within the range of the spot-shaped fused portion 13. The file means 1 is detachable from the file locking member 15 at appropriate intervals along the one side.
6 is formed.

More specifically, the main body 11 uses a tube made in a continuous state as a material, and cuts one side of a long tube connected in a continuous state along a longitudinal direction,
The cross section substantially U separated from the main body 11 by this cutting
The elongate portion 12 in the shape of a letter is placed on one side of the main body 11, and this portion is spot-welded along one side of the main body 11 by ultrasonic welding. This spot-like fused portion has a four-layer structure. Thereafter, the tube is cut to the size of one document storage holder 17, and one side of the opposing sides orthogonal to the longitudinal direction of the main body 11 is kept open while the other side is open. Two sheet portions 14, 14 constituting the body portion 11 on the sides
They are closed by heat fusion. Reference numeral 18 denotes a heat-sealed portion on the other side. One side in the open state is an opening 21 through which a document 20 is put in and taken out of a document storage portion 19 formed between the two sheet portions 14.

FIG. 5 shows a completed document storage holder 17. One side of the document storage holder 17 is covered with the elongated portion 12 and is reinforced by spot-like fusion, and the file means 16 is provided. The other side of the document storage holder 17 is a fold, and the lower end of the document storage holder 17 in the upright state is closed by heat fusion, and two sheets are provided at the upper end. An opening 21 through which a document 20 is put in and taken out of a document storage portion 19 formed between the sheet portions 14 is formed.

The file means 16 formed in the area of the spot-like fusion portion 13 is a locking portion cut in a substantially T-shape, and this locking portion has a circular shape and is stretched on both sides on the outer periphery. The plurality of document storage holders 17 are detachably bound by being locked to the flange 22 of the locking device 15 having the flange 22 to be protruded (see FIG. 11). In FIG. 11, reference numeral 23 denotes a cover of the file. As shown in FIG. 11, the document 20 is inserted into and removed from the document storage section 19 of the document storage holder 17 bound to the locking member 15.
1 can be performed.

As described in the above embodiment, the locking portion serving as the file means 16 of the document storage holder 17 is detachably locked to the flange portion 22 of the locking member 15. If the locking portion as the means 16 does not have appropriate hardness, the locking portion can easily come off from the flange portion 22 of the locking tool 15, so that the ultrasonic fusion along the position where the locking portion is formed can be performed. An infinite number of spot-shaped fused portions 13 were formed by the attachment to reinforce the locking portions. The size of the spot-like fusion portion 13 is appropriately adjusted according to the size of the document storage holder 17 and the type of synthetic resin used as the material of the document storage holder 17. On the other hand, it is necessary to form the entire spot-shaped fused portion 13 so that the density of the entire spot-shaped fused portion 13 is in the range of 10 to 40% in view of the hardness of the reinforcing portion and the strength of the waist. It is said. If the density of all the spot-like fused portions 13 is less than 10%, the hardness of the reinforcing portion cannot be maintained, and the stiffness becomes weak. If it exceeds 40%, the reinforcing portion becomes too hard and the synthetic resin becomes too hard. There is a problem that the deterioration of the metal occurs. In the present embodiment, the document storage holder 17 is formed using a sheet made of polypropylene as a material.

Further, in the embodiment described above, the locking portion cut into a substantially T-shape is formed as the file means 16, however, as in the second embodiment shown in FIG. It is also possible to form a circular hole 24 as the means 16 and to form a locking portion having a cut 25 in the tangential direction of the hole 24, and the structure of the locking portion is limited to the embodiment shown in the drawings. It is not done.

Further, in the above-described embodiment, the document 20 is stored in the document storage holder 17, but other business cards and photographs may be stored. Furthermore, in the above description, the spot-like fusion portion 13
Is formed by ultrasonic welding, but may be formed by other means such as heat welding. Further, the spot-shaped fusion bonding portion 13 can be formed by using both ultrasonic fusion and heat fusion. For example, the spot-shaped fused portion 13
Is formed by ultrasonic fusion, the frequency is 15 KHz
By making it possible to adjust in the range of ５０50 KHz and to be able to hit 15,000 to 50,000 times per second, it is possible to arbitrarily change the fusing speed. Further, in the heat fusion, a roll provided with countless needle-like projections on the peripheral surface is heated to a temperature at which the synthetic resin material constituting the document storage holder 17 is not completely melted. This is performed by passing a portion of the main body 11 on one side portion of which the elongate portion 12 covers between the other roll.

[0014]

As described above, according to the present invention, an infinite number of spot-like fusion parts are formed along one side of the storage holder in which the file means is formed. Since the reinforcing member is reinforced, the formation of the file means can be reinforced more easily and the cost can be reduced as compared with the case where the reinforcing synthetic resin tape is interposed as in the conventional example. In particular, the storage holder manufactured according to the present invention is made of synthetic resin, uses a tube as a material, and has a substantially U-shaped cross section that covers one side of the main body and the main body is made of the same material. Therefore, there is no difference in heat shrinkage between the main body portion and the elongated portion at the reinforcing portion formed by spot fusion. Further, it is not necessary to separately prepare a long portion for reinforcement by spot fusion, and a long portion cut off from one side of the main body is used, so that cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which one side of a tubular main body is cut along a longitudinal direction in a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which one side of the tubular main body is cut along a longitudinal direction.

FIG. 3 is a plan view showing a state in which one side of the tubular main body is cut along a longitudinal direction.

FIG. 4 is a cross-sectional view showing a state in which one side of the tubular main body is cut along a longitudinal direction.

FIG. 5 is a plan view showing a state in which an elongate portion formed by cutting one side of the tubular main body along the longitudinal direction is placed on one side of the main body.

FIG. 6 is a cross-sectional view showing a state in which an elongated portion formed by cutting one side of the tubular main body along the longitudinal direction is placed on one side of the main body.

FIG. 7 is a plan view showing a state in which a spot-shaped fused portion is formed on one side portion of the main body portion, and then a file means is formed.

FIG. 8 is a perspective view of the completed document storage holder.

FIG. 9 is an enlarged sectional view of a main part of the completed document storage holder.

FIG. 10 is an enlarged plan view of a main part of the completed document storage holder.

FIG. 11 is a perspective view showing a relationship between the document storage holder and a file.

FIG. 12 is an enlarged plan view of a main part of the document storage holder according to the second embodiment of the present invention.

FIG. 13 is a perspective view of a conventional document storage holder.

FIG. 14 is an enlarged cross-sectional view of a main part of the document storage holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Main part 12 Long part 13 Spot fusion part 14 Sheet part 15 Locking device 16 File means 17 Document storage holder 18 Thermal fusion part 19 Document storage part 20 Document 21 Opening 22 Flange 24 Hole 25 Cut

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B42F 7/00 B42F 5/04 B42F 13/00

Claims (4)

(57) [Claims] 1. A method for manufacturing a holder for storing documents or the like made of synthetic resin, comprising cutting a side portion of a flat main body portion formed in a tube shape along a longitudinal direction, and cutting the main body portion by cutting. A long portion having a substantially U-shaped cross section cut off from the main body portion is placed on one side portion of the main body portion, and the long portion is placed on one side portion of the main body portion along one side portion of the main body portion. Of the main body formed into a tube shape, one of the opposing sides orthogonal to the longitudinal direction remains open, and the other side has an open state. The sheet means is closed by heat-sealing the sheet parts together, and a file means which can be detachably attached to the file fastener at appropriate intervals along the one side within the range of the spot-shaped fused part. A method for manufacturing a holder for storing documents and the like, characterized by being formed. 2. The method according to claim 1, wherein the file means is a locking portion cut into a substantially T-shape. 3. The method according to claim 1, wherein the file means is a hole. 4. The holder according to claim 1, wherein the file means is a locking portion having a circular hole and a cut formed in a tangential direction of the hole. Production method.