JP2927771B1 - Threadable pipe file - Google Patents

Abstract

An object of the present invention is to provide a file which can easily be threaded when extracting a sheet from a pipe file. A slit (16) having a width capable of pulling out a string (13) from the inside of the pipe (10) is formed over the entire length in the longitudinal direction of the facing surfaces of a pair of pipes (10). When the binding sheet is full, the both ends of the string 13 are inserted into the respective pipes 10 through the elongated holes 9 from the outer surface side of the cover 2 and are inserted from above. Pulling makes it easy to thread the sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe file in which a pipe is inserted into a punch hole formed in a sheet such as a document and bound by the pipe. Can be stored or discarded through a string, and the pipe file is effectively reused.

[0002]

2. Description of the Related Art In a conventional pipe file, when a sheet such as a bound document is full, the bound sheet is extracted from the pipe and stored in another place, or is effectively stored when discarded. As a file for
A technique is known in which a pipe of a pipe file is transferred to a storage file through a binding rod of the storage file (Japanese Utility Model Application Laid-Open No. 4-73585).

[0003]

However, according to the conventional technique, a new storage file is required when transferring to another location, and even if the binding sheet such as a document is discarded, the storage file is not stored. They will be discarded, wasting resources.

[0004] There is also a method of extracting a binding sheet from a pipe file without using a storage file and binding it again through a string through a punch hole of the sheet. However, the binding sheet becomes irregular due to extraction from the pipe file, and The threading work is also complicated.

[0005]

The inventor of the present invention has made intensive studies on such means because if the stringing is possible before the pipe is extracted from the pipe file, the stringing operation can be easily performed. Since the pipes can be threaded, a configuration in which slits are provided in the vertical direction over the entire length of the facing surfaces of the pair of pipes is adopted. If it is inserted in the middle, the sheet can be bound to the pipe while the string is passed through the pipe, and when pulling up both ends of the string at the time of subsequent sheet removal, the string can be passed through the extracted sheet bundle Was found to be easy.

[0006] However, in this configuration, it is necessary to insert the sheet between pipes in advance, and if this is forgotten, it is necessary to remove all the binding sheets and set the string again, which is troublesome and further improvement is required. There is a need.

The inventor of the present invention has conducted further studies to improve this point. As a result, a slot for string passing through the cover is formed so as to communicate with the slit between the slits of the pair of pipes. It is not necessary to put a string between pipes in advance, and when the binding sheet is full, insert both ends of the string into the respective pipes through the long holes from the outer surface side of the cover and pull from above to pull the string. The center portion of the cover slips through the slit of the pipe from the long hole of the cover and comes off the pipe together with the binding sheet, and it has been found that the string can be easily passed through the full sheet bundle, and the present invention has been completed. Was.

In this case, since the elongated hole penetrates the cover of the file, it is preferable to form a lid that can be opened and closed from the outer surface side via a hinge in the elongated hole in consideration of appearance. It is.

[0009] The present invention can be applied to the binding device regardless of whether it is made of metal or synthetic resin, and the cover can be made of paper or synthetic resin.
It is preferred that the binding device and the cover be made of a homogeneous material, especially a synthetic resin, for example, polypropylene.

The lower end of the binding pipe may be directly fixed to the inner surface of the cover. However, when the cover has low rigidity, for example, when the cover is thin or flexible. As a function of the binding device, there is a possibility that the distance between the pipes may fluctuate, and it is desirable to reinforce the fixing strength of the lower end of the pipe. As such a reinforcing means, the above object can be achieved by adopting a configuration in which a pedestal on which a pair of pipes is erected is fixed to the inner surface side of the cover.
Of course, in this case, a pedestal slit is formed in the pedestal so as to communicate with the elongated hole on the front cover side between the pair of slits.

When the pedestal is fixed to the cover, a method such as a screw, a rivet, adhesion, welding, or the like can be employed. In particular, when the binding device and the cover are made of synthetic resin such as polypropylene, a plurality of ribs are protruded from the lower surface of the pedestal, and if the lower end of the rib is heat-welded to the cover, the entire surface of the pedestal can be formed. Compared to the case of welding to the cover, twisting due to heat shrinkage is less likely to occur, and a file with excellent quality can be provided.

Note that the string for binding the sheet is a concept including a fiber string, an iron wire, and a narrow band made of resin.
Generally, fiber strings are frequently used.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an inner surface side of a pipe file according to the present embodiment, FIG. 2 is a perspective view showing an outer surface side of the same file, and FIG. 3 is a sectional view of a pipe portion.

As shown in the figure, the pipe file 1 is composed of a cover 2 and a binding device 3. The cover 2 is formed as a thin hinge 7 by forming two notch streaks having a V-shaped cross section in the center of a single cover material made of polypropylene by a hot press. The cover 4 and the back cover 5 and the spine 6 between the thin hinges 7 are integrally connected.

The back cover 5 is formed with an elongated hole 9 extending between slits 16 of a pipe 10 to be described later, and the elongated hole 9 is formed on a side wall of the elongated hole 9 through a thin hinge 21.
A cover 22 is formed to open and close freely. The cover 22 cuts the back cover 6 at the same time as forming two notch streaks in the center of one cover material to form the hinges 7 on both sides of the back cover 6 (the cover is pressed by the cutting blade). Notches similar to the thin hinges described above and the lid 2
2 and its hinge 21 can be formed. The long hole 9 is formed to have a width that allows the fiber braided string 13 to pass therethrough.

The binding device 3 is made of polypropylene similarly to the cover 2, and is provided with a pedestal 8 which is heat-welded on the inner surface side of the back cover 5 and near the spine, and stands upright on the pedestal 8. It comprises a pair of pipes 10 which are inserted into the punched holes of the binding sheet and bind them, and a sheet retainer 11 which fits into the pipe 10 and holds down the binding sheet.

Each of the pair of pipes 10 has a center hole 14 through which a cord 13 can pass, and the center hole 1 extends in the longitudinal direction (the length direction of the pipe) on the opposing surfaces of the two pipes 10 over the entire length.
A slit 16 communicating with the slit 4 is formed.
6 is also formed in a width from which the string 13 can be extracted.

The pedestal 8 has a rectangular parallelepiped box shape with an open lower surface, and a pedestal slit 18 communicating with the slit 16 extending between the pair of pipes 10 is formed on the upper surface thereof. As shown in FIG.
9 are formed in a plurality of rows. The height of the rib 19 and the peripheral side wall portion 8a of the pedestal 8 are the same, and the lower end thereof is welded to the inner surface 5a of the back cover 5. The pipe 10
Can adopt a configuration in which the lower end is integrated with the upper surface of the pedestal 8, but in the present embodiment, the lower end of the pipe is made to penetrate the upper surface of the pedestal 8 to approach the back cover 5, and the portion is guided by the string 13. I use it as a guide.

The sheet retainer 11 has a length that can be inserted into the upper ends of the two pipes 10 and is formed in a plate shape, and has a pair of fitting holes 20 that are removably fitted to the pipes 10. Is formed.

When the pipe file having the above configuration is used, it is not necessary to insert a string between pipes in advance.
When the binding sheet is fully loaded on the pipe and is transferred, the cover 22 on the outer surface side of the cover is opened, and both ends of the string 13 are inserted into the respective pipes 10 through the elongated holes 9 to penetrate the pipe. When both ends were pulled upward, the central portion 13a of the string 13 came out of the elongate hole 9 of the back cover 5 through the pedestal slit 18 and the slit 16 of the pipe 10, and came off the pipe 10 together with the binding sheet, and became full. Seat can be easily threaded. Therefore, even when the transferred documents are discarded, only the string 13 is consumed, and the pipe file can be reused as it is.

FIG. 4 is a front view showing a second embodiment of the binding device. In the second embodiment, in order to prevent the sheet holder 11 from being lost, a flexible connecting cord 24 for connecting the end of the sheet holder 11 and the pedestal 8 is integrally formed. Can be integrally molded with a synthetic resin such as polypropylene.

FIG. 5 is a front view showing a third embodiment of the binding device. In the third embodiment, a pair of insertion pins 23 are integrally formed on the lower surface of a plate using the center hole 14 of the pipe 10 instead of the fitting hole 20 of the sheet holder 11. Further, in order to enhance the insertion holding ability of the insertion pin 23, the engagement projection 26 is provided in the middle of the insertion pin 23.
On the other hand, a configuration is employed in which an engaging concave portion 27 is formed on the inner wall of the center hole 14 of the pipe 10 so as to be detachable from the engaging convex portion 26.

FIG. 6 is a perspective view showing a fourth embodiment of the binding device. In the fourth embodiment, the lower end of the pipe 10 is integrated with the disk-shaped pedestal 8, respectively. When the cover 2 has high rigidity, the fixing strength of the pipe 10 is determined only by the disk-shaped pedestal 8. Can be secured sufficiently.

In the embodiment shown in FIGS. 4 to 6, the other components which are not described are the same as those of the first embodiment shown in FIGS. 1 to 3. In each of the above-described embodiments, the binding device 3 is attached to the back cover side. However, the present invention is not limited to this, and it goes without saying that the binding device 3 may be attached to the front cover side.

[0025]

As is apparent from the above description, according to the present invention, since the long hole communicating with the slit of the pipe of the pipe file is also formed on the cover side, when the binding sheet becomes full, the cover sheet is closed. If both ends of the string are inserted through the long holes on the outer surface and inserted into each pipe and pulled from above, the central part of the string will pass through the slit of the pipe from the long hole on the cover and will come off the pipe with the binding sheet, Can be easily connected and the pipe file can be reused.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an inner surface side of a pipe file according to an embodiment.

FIG. 2 is a perspective view showing the outer surface of the file.

FIG. 3 is a sectional view of a pipe portion.

FIG. 4 is a front view showing a second embodiment of the binding device.

FIG. 5 is a front view showing a third embodiment of the binding device.

FIG. 6 is a perspective view showing a fourth embodiment of the binding device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 pipe file 2 cover 3 binding tool 4 cover 5 back cover 6 back cover 7 hinge 8 pedestal 9 long hole 10 pipe 11 sheet retainer 13 string 14 center hole 16 slit 18 pedestal slit 19 rib 22 lid

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B42F 13/04 B42F 13/14 B42F 13/30

Claims (5)

(57) [Claims] 1. A binding device including a pair of pipes that can be threaded through the inner surface of a cover and a sheet retainer that is fitted to the pipe and presses a binding sheet is provided. over the longitudinal entire length, strap slits of drawable width are formed from the inner pipe, the long holes for cord insertion through said cover so as to communicate with the slit is formed between the opposing slits, the In a long hole
Has a hinge that can be opened and closed from the outside of the cover via a hinge.
A pipe file that is physically formed and can be threaded. 2. The binding device according to claim 1, wherein the binding device includes a pair of pipes.
A pedestal, wherein the pedestal is secured to an inner surface of the cover;
Between the pair of slits and the slot on the cover side.
2. The pipe file according to claim 1, wherein a pedestal slit is formed . 3. A plurality of ribs protrude from a lower surface of the pedestal.
Wherein the lower end of the rib is fixed to the inner surface of the cover.
Item 2. The pipe file according to Item 2 . 4. The pedestal is formed in a box shape.
A pair of pipes erected on the
3. The string guide guide penetrating the upper surface of the seat.
Or 3 pipe file. 5. The sheet retainer is connected to a pedestal via a connecting cord.
5. The pipe file according to claim 2 , wherein the pipe file is integrally formed .