JPH11115363A - Resin file - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the degree of freedoms of a pattern or design by providing excellent external appearance, strength, handleability, wastability, recylability and easy manufacture, and a low cost. SOLUTION: The resin file comprises filing pieces 22, 26 formed at cover and rear cover parts 12A, 12B corresponding parts of a file body 10 substantially at a center near a backbone separately from the other cover parts 12B, 12A so that filing inserting members 24 are formed at the one piece 22 and engaging protrusions 28 are formed at the other piece 26 integrally with resin. After the members 24 are inserted into holes opened at sheets, an engaging member 32 of an auxiliary filing member 30 is inserted into the members 24, and the protrusions 28 of the cover part 12B is engaged with an engaging grove 33 of the member 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin file. More specifically, the present invention relates to a resin file including a file main body in which a pair of front mounting portions are connected with a backing portion interposed therebetween, and a binding tool provided in the file main body.

[0002]

2. Description of the Related Art Conventionally, a paper file is often used as a file for binding a large number of sheets. However, paper files have the following disadvantages. Since the metal binding device is fixed to the spine of the thick paper file main body with rivets or the like, an assembling process for fixing the binding device to the file main body is required.
When the binding device is riveted to the spine of the file body, the rivet head appears on the surface of the spine,
Not only does it look bad, but the layout, such as title or design printing, is limited. Furthermore, in sorting and discarding, a metal binding device must be separated from the paper file body and discarded, so that there is a problem that it takes time and effort to discard.

[0003] As a solution to such a problem,
Resin files have been proposed. For example,
JP-A-8-155271 discloses a back wall, a front wall connected to one long side of the back wall via a linear groove, and a front wall connected to the other long side of the back wall via a linear groove. There is shown a resin file (hereinafter, referred to as Conventional Example 1) in which a back wall having a rod-shaped binding tool is provided on the inside, and these are integrally formed of synthetic resin.

Japanese Patent Application Laid-Open No. Hei 6-340195 discloses that a resin file surface material and a resin binding device are separately manufactured, and a predetermined size of continuous or discontinuous is formed on a mounting surface of the binding device. Are formed, and a resin file (hereinafter referred to as Conventional Example 2) is welded in a state where the protrusion of the binding tool is brought into contact with a resin file surface material.

In Japanese Utility Model Laid-Open Publication No. 3-47178,
A resin file (hereinafter referred to as Conventional Example 3) having a structure in which a fixing tool is formed of a PP resin molded product and then the fixing tool is fixed to the back of the cover with eyelets or the like is shown.

[0006]

The resin file of the prior art 1 has a structure in which a rod-like binding tool is directly provided on a thin back wall, so that the appearance such as sinking and whitening on a thin part of the rod-like base is obtained. There is a drawback that deterioration is apt to occur and strength is also weakened. In addition, since the binding device is provided on the back wall, when the back wall and the front wall are opened, the documents bound inside are easily dropped and the handling is inferior.

Conventional resin file 2 and conventional file 3
The resin file requires a post-process in which the binding tool and the fixing tool are welded to the resin file material or fixed with eyelets or the like, which is problematic in terms of manufacturing and cost. Also, since the file material is usually a sheet,
There is no freedom in terms of surface decoration.

An object of the present invention is to eliminate such disadvantages of the prior art, to be excellent in appearance, strength, handleability, disposal and recycling, to be easy to manufacture and to be excellent in cost. Another object is to provide a resin file having a high degree of freedom in pattern and design.

[0009]

According to the present invention, there is provided a resin file comprising: a file main body having a pair of front mounting portions connected to each other with a back mounting portion interposed therebetween; a file main body corresponding to each of the front mounting portions; A binding main portion and a sub-portion formed substantially in a central portion, wherein the file body, the main portion and the sub-portion are integrally formed of resin, and at least one of the main portion and the sub-portion is covered; Parts are separated from each other.

In the above, the resin is not particularly limited, but polyolefin resins, for example, polypropylene, propylene-ethylene random copolymer, propylene-ethylene block copolymer, polyethylene and the like are preferable. Further, fillers such as talc and calcium carbonate, coloring agents such as titanium oxide, other stabilizers, nucleating agents and the like may be added to these. The thickness of the file body is about 0.8 mm to 3.0 mm. Although it may be formed to have a uniform thickness as a whole, it is particularly preferable to form the back part to be thicker than others. Moreover, if the pair of front mounting portions is connected to the back mounting portion via a hinge mechanism, the front mounting portion can be easily opened or closed.

Further, the main part and the sub-part for binding may have any structure as long as they have a function of binding sheets such as documents together. For example,
A tubular or rod-shaped insertion member for inserting a punch hole formed in paper such as a document may be used as a main part, and an engagement member engaging with the tip of the insertion member may be used as a sub-part. In this case, the number of insertion members is arbitrary as long as it is two or more. Examples of the engaging member include a hook-shaped or ring-shaped member that engages with the insertion member, and an engaging portion such as a groove or a hole that elastically engages with or disengages from the tip of the insertion member. And the like. Alternatively, an engaging member having an engaging portion detachably engaging with an auxiliary binding member having a rod-shaped or tubular engaging member fitted to the main member is used as an auxiliary member. The structure with the parts is more preferable. That is, it is more preferable that the main portion and the sub-portion are engaged with each other via the intermediate binding member.

In order to integrally form the file main body, the main part and the sub part with a resin, it is preferable to form them by injection compression molding or injection molding. According to such a molding method, a post-process of assembling the main portion and the sub-portion for binding to the file main body becomes unnecessary, which is advantageous in terms of manufacturing and cost as compared with the related art. In addition, when sorting and recycling,
The file main body and the binding main part and sub-part can be discarded or recycled without being separated.

At this time, the main part and the sub part for binding are
It is formed at a portion corresponding to each of the front mounting portions of the file body and substantially at the center near the back mounting portion, and at least one is separated from the front mounting portion, so that the mold configuration can be simplified. In other words, the main part and the sub-part for binding need to be engaged with each other even when the front cover part is opened, and to keep the paper bound, so that the binding part is conventionally provided on the back part. However, when provided on the backing part, the main part and the auxiliary part for binding (for example, a tubular or rod-shaped insertion member and an engaging member engaging with the same) must be formed in parallel with the backing part. In addition, it is difficult to remove the mold, and the configuration of the mold is complicated.

On the other hand, in the present invention, the binding main portion and sub-portion are formed in portions corresponding to the respective front cover portions of the file main body. Therefore, the main binding portion and sub-portion for binding are attached to the front cover portion. The mold may be formed at a right angle, and therefore, the mold can be configured from two split dies that approach and separate relatively, so that the configuration of the mold can be simplified. In addition, since at least one of the main part and the sub-part for binding is separated from the front cover part, the sheet can be kept in a bound state even when the front cover part is opened. Therefore, since the paper does not fall off, the handleability is excellent. In this case, at least one of the main part and the sub part may be separated from the front part, preferably the sub part is separated from the front part, and more preferably the sub part Both the main part and the main part are preferably separated from the front part.

[0015] The binding main part and the sub-part are formed by binding pieces whose periphery except for the side adjacent to the backing part of the file main body is cut off from the front mounting part and which is substantially flush with the front mounting part. It is desirable to have a configuration having each. With this configuration, the insertion member of the main portion and the engagement portion of the sub-portion can be easily formed, and the sheet can be bound in a state where the sheet is sandwiched by the pair of binding pieces.
In addition, the paper can be stably held in the upright posture.

In this case, if at least one of the binding pieces, preferably on the main part side, is connected to the backing part via a hinge mechanism, opening and closing of the binding pieces, that is, binding and detaching of the sheet is easy. is there. If the thickness of the backing part and each binding piece is formed to be thicker than the other front parts, each binding piece can be attached to the backing part of the file body, or the insertion member of the main part can be attached to the binding piece. It can be molded firmly without deterioration. Therefore, the appearance and the strength are excellent, and the degree of freedom of the pattern and the design can be increased. For example, the shape of the binding piece can be a rectangle, a semicircle, a semiellipse, a semiellipse, or the like.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is an exploded perspective view of a resin file according to a first embodiment. As shown in the figure, the resin file 1 of the present embodiment includes a file body 10 and a binding tool 20.

The file main body 10 includes a vertically-long rectangular backing portion 11, and vertically-long rectangular facing portions 12A and 12B connected to both sides of the long side across the backing portion 11.
It is formed of a synthetic resin having a thickness of 0.8 mm to 3.0 mm. Here, the backing part 11 is different from the other front part 12.
It is formed thicker than the thicknesses of A and 12B. Back part 11
And the front cover parts 12A and 12B, the file body 1
The hinge mechanisms 13A and 13B are respectively formed by two V-grooves whose thickness is smaller than the thickness of the front mounting portions 12A and 12B. This makes it easy to raise and lower the front mounting portions 12A and 12B with respect to the back mounting portion 11, that is, the front mounting portion 1
2A and 12B can be easily opened and closed. The number of V grooves may be one or two or more.

The binding device 20 includes a main part 21 and a sub part 2.
5 and an auxiliary binding member 30. The main portion 21 and the sub-portion 25 are formed in portions corresponding to the front-mounting portions 12A and 12B of the file main body 10 and in a substantially central portion near the backing portion 11. That is, the file body 10 has rectangular plate-shaped binding pieces 22 and 26 that are cut off from the exterior parts 12A and 12B on three sides except the side adjacent to the backing part 11 respectively. For this reason, the front cover 1
Openings 14A and 14B are formed in portions corresponding to the binding pieces 22 and 26 of 2A and 12B. A hinge mechanism 23 composed of one V-groove is formed between the binding piece 22 and the backing part 11. This allows
The binding piece 22 can be erected in a posture perpendicular to the backing part 11 and can fall down on the substantially same plane as the front mounting part 12A. The number of V-grooves constituting the hinge mechanism 23 may be two or more. On the other hand, the binding piece 26
Is upright with respect to the backing portion 11, but can be easily bound by elastic deformation without a hinge mechanism.
In this case, the binding piece 26 may be provided with a hinge mechanism. However, when the hinge mechanism is provided only on the binding piece 22 on the main part 21 side as in this embodiment, when the binding pieces 22 and 26 are combined, the hinge mechanism stands upright with respect to the backing part 11 and is stable. preferable.

In the binding piece 22 of the main part 21, two tubular insertion members 24, 24 for inserting a punch hole formed in a sheet (not shown) to be bound are formed at right angles and spaced from each other. It is protruding. The number of insertion members may be three or more. An engagement protrusion 28 as an engagement portion is integrally formed on the binding piece 26 of the sub-part 25. Reference numeral 29 denotes a hole formed for providing a slide core for removing the engagement protrusion 28 during molding. The auxiliary binding member 30 is formed by pressing a metal. The auxiliary binding member 30 has a plate-like plate 31 having substantially the same shape as the binding pieces 22 and 26, and the insertion member 24 protruding from the plate 31 is provided in the insertion member 24. The two rod-shaped fitting members 32, 32 to be inserted, and the engagement groove 33 formed between the two fitting members 32, 32 and engaged with the engagement projection 28 of the binding piece 26 are formed. Have.

In manufacturing these, the main part 21 and the sub part 25 of the file body 10 and the binding tool 20 are used.
Are integrally formed by injection compression molding, and the auxiliary binding member 30 of the binding tool 20 is manufactured by pressing a metal. In performing injection compression molding of the file main body 10 and the main part 21 and the sub part 25 of the binding tool 20, for example, a mold 40 shown in FIG. 2 is used. This is provided with a fixed mold 41 and a movable mold 42 approaching and separating from the same (moving up and down in FIG. 2), and the file main body 10 (the backing unit 11, the front mounting units 12A and 12B) is provided therein. A cavity 43 for integrally molding the main part 21 and the sub part 25 is formed.

The cavity 43 has a coplanar space A for forming the backing portion 11 and the front mounting portions 12A and 12B, and a space B for forming the binding piece 22 of the main portion 21.
Is provided one step above and parallel to the space A, and the space C forming the insertion member 24 is the space B
The space D that forms the binding piece 26 of the sub-portion 25 is formed at right angles to the space A. Since the space D has a portion where the engagement protrusion 28 is formed, the movable die 42 cannot be die-cut as it is. Therefore, the fixed die 41 is provided with a slide core 44 that is inserted into the cavity 43 and forms the engagement protrusion 28 so as to be slidable (slidable in the vertical direction in FIG. 2).

Accordingly, the movable mold 42 is closed with respect to the fixed mold 41 and the mold 40 is clamped. Then, the molten resin is injected into the cavity 43 of the mold 40 (the injection path is omitted). The mold 40 is compressed, that is, the movable mold 42 is pressed and moved against the fixed mold 41, and after the molten resin in the cavity 43 is cooled and solidified, the movable mold 42 is opened upward with respect to the fixed mold 41, and the slide core 44 is opened. Slide down. Thereby, it is possible to obtain a molded product in which the file body 10 and the main part 21 and the sub part 25 of the binding tool 20 are integrally formed.

In use, the punched holes formed in the paper are inserted into the insertion member 24 of the main part 21 integrally formed with the file body 10, and then the fitting members 32, 32 of the auxiliary binding member 30 are inserted. Here, when the main part 21 is folded toward the front mounting part 12 </ b> B, the engagement protrusion 28 of the sub part 25 is fitted into the engagement groove 33 of the auxiliary binding member 30 and held. That is, the paper is bound by the main part 21 and the sub-part 25 via the auxiliary binding member 30.

FIG. 3 shows a state in which the front cover parts 12A and 12B are closed.
Shown in In this state, the backing unit 11 of the file body 10
On the side, the opening 14 is formed by the main part 21 (and the sub part 25).
Since A (14B) is formed, for example, when the present resin file is stored in a shelf or the like, it is possible to easily take out the file from the shelf by handing on that portion. FIG. 4 shows a state in which one of the front mounting portions 12A is opened from a state in which the front mounting portions 12A and 12B are closed. As can be seen from this state, even when the front cover parts 12A and 12B are opened, the main part 21 (and the sub part 25) separated therefrom presses the sheet, so that the sheet does not fall off and is handled. Cheap.

On the other hand, when sorting and discarding or recycling, the auxiliary binding member 30 of the binding device 20 is removed from the insertion member 24 of the main part. In this state, the file body 1
0, main part 21 and auxiliary part 25, and auxiliary binding member 30
And are separated. Since the file body 10, the main part 21 and the sub part 25 are all integrally formed of the same synthetic resin material, they can be discarded as they are (without separation). Also, if necessary, it can be reused for recycling.

According to the resin file 1 of the first embodiment, the file main body 10 and the main portion 21 and the sub-portion 25 constituting the binding device 20 are integrally formed of synthetic resin. A post-process of assembling the sub part 21 and the sub part 25 to the file main body 10 can be omitted. Therefore, it is advantageous in terms of manufacturing and cost as compared with the related art. Moreover, at the time of separate disposal or recycling, the file main body 10 and the main part 21 and the sub part 25 constituting the binding device 20 can be directly discarded or recycled without being separated.

The main part 21 and the sub part 2 for binding are also provided.
5 is formed at a portion corresponding to each of the front mounting portions 12A and 12B of the file main body 10 and at a substantially central portion near the back mounting portion 11 and is separated from the front mounting portions 12A and 12B. Can be simplified. That is, since the main part 21 and the sub part 25 for binding are formed in portions corresponding to the front cover parts 12A and 12B of the file body 10, the main part 21 and the sub part 25 for binding are attached to the front part 12A and 12B. The mold may be formed at a right angle to the mold. Therefore, basically, the mold can be constituted by the fixed mold 41 and the movable mold 42 approaching and moving away from the fixed mold 41, so that the mold construction can be simplified. .

The main part 21 and the sub part 2 for binding are also provided.
Reference numeral 5 denotes binding pieces 22 and 26 whose periphery except the side adjacent to the backing portion 11 of the file body 10 is separated from the front mounting portion.
, It is easy to form the insertion member 24, the engagement protrusion 28, and the like. In addition, a pair of binding pieces 22, 26
Thus, the sheets can be stapled in a sandwiched state, so that the sheets can be stably held without being damaged and in an upright posture. Moreover, since at least the binding pieces 22 are connected to the backing part 11 via the hinge mechanism 23, opening and closing of the binding pieces 22, 26 can be performed.
That is, it is easy to bind and remove sheets.

Further, with respect to the insertion member 24 of the main portion 21,
After the punch holes formed in the paper are inserted, the fitting member 32 of the auxiliary binding member 30 is inserted, and the engagement protrusion 28 of the sub-part 25 is engaged with the engagement groove of the auxiliary binding member 30. That is, after the sheet is sandwiched between the main part 21 and the auxiliary binding member 30, the engagement protrusion 28 of the sub part 25 is engaged with the engagement groove 33 of the auxiliary binding member 30, and the main part 21 and the sub part Since the paper 25 is engaged with the auxiliary binding member 30, the paper does not shift even when the sub-part 25 is engaged with or released from the auxiliary binding member 30, so that the paper can be easily bound and removed. .

In the above embodiment, the binding device 20
Although the auxiliary binding member 30 is manufactured by pressing a metal, it may be made of resin. Alternatively, the plate 31 may be made of resin, and the fitting member 32 may be made of metal. In the production of the resin file described in the above embodiment, as shown in FIG.
Although the space D forming the sub-portion 25 is arranged at a right angle to the space A, if the space D is laid horizontally and is arranged at the same angle as the space A or at a slight inclination angle, the slide core 44 can be Can be unnecessary.

(Second Embodiment) FIG. 5 is a perspective view of a resin file according to a second embodiment. In the description of the drawing, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted or simplified. The resin file 2 of the present embodiment has a common file body 10 and a different binding tool from the first embodiment. The binding device 50 of the present embodiment includes a main part 51 and a sub part 55. That is, the auxiliary binding member 30 of the first embodiment is omitted. The main part 51
Is different from the main portion 21 of the first embodiment in that the tubular insertion member 24 is replaced by a rod-shaped insertion member 52. The sub-portion 55 is different from the sub-portion 25 of the first embodiment in that the engagement projection 28 and the hole 29 are omitted.
An engagement groove 57 is formed as an engagement portion that elastically engages with and disengages from the insertion member 52.

According to the resin file 2 of the second embodiment, the following effects can be expected in addition to the effects described in the first embodiment. That is, all the constituent requirements 5 of the binding device 50
Since the members 1 and 55 are formed integrally with the file body 10, the manufacturing is simpler and the cost is superior to the first embodiment.

In the first and second embodiments, the hinge mechanisms 13A and 13B are provided between the backing portion 11 of the file main body 10 and each of the front mounting portions 12A and 12B. Alternatively, only one side may be used. Furthermore, although the surface-mounting portions 12A and 12B have been described as being planar, a box-shaped file may be formed by raising the periphery of the surface-mounting portions 12A and 12B. The shape is not limited to a rectangular shape, but is arbitrary.

In the injection compression molding, other members having a pattern, a character, a figure, etc. on the surface of the surface mounting portions 12A and 12B and a display portion in the space forming the backing portion 11 of the cavity 43 are provided. May be pre-inserted to perform injection compression molding. In addition, conditions for injection compression molding can be appropriately selected, such as starting compression before resin injection is completed.

[0036]

According to the resin file of the present invention, a main part and a sub part for binding are formed at the parts corresponding to the front parts of the file body and substantially at the center part near the back part. The sub-portion is formed integrally with the file body and the resin, and at least one of the sub-portions is separated from the front portion, so that the appearance, strength, and handleability are excellent, and
It's easy to manufacture, cost-effective,
The effect that the degree of freedom of patterns and designs is high can be expected. Furthermore, it is suitable for disposal and recycling.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a resin file according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a mold used for manufacturing the resin file of the embodiment.

FIG. 3 is a perspective view showing a closed state of the resin file of the embodiment.

FIG. 4 is a perspective view showing a state in which one front cover of the resin file of the embodiment is opened.

FIG. 5 is a perspective view showing a resin file according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 File main body 11 Back part 12A, 12B Front part 20,50 Binding tool 21,51 Main part 22 Binding piece 23 Hinge mechanism 24,52 Insertion member 25,55 Secondary part 26 Binding piece (engaging member) 28 Engagement protrusion (Engaging portion) 30 auxiliary binding member 32 fitting member 33, 57 engaging groove (engaging portion)

Claims (7)

[Claims] 1. A file main body having a pair of front mounting portions connected to each other with a back mounting portion interposed therebetween, and a main binding portion formed at a portion corresponding to each front mounting portion of the main body and substantially at a central portion near the back mounting portion; And a file part, wherein the file body, the main part and the sub part are integrally formed of resin, and at least one of the main part and the sub part is separated from the front part. Resin file. 2. The resin file according to claim 1, wherein the sub-portion is separated from the front portion. 3. The resin file according to claim 1, wherein both the sub part and the main part are separated from the front part. 4. The resin file according to claim 3, wherein the sub-portion and the main portion are separated from the front-mounting portion except for a side adjacent to the backing portion of the file body, and A resin file having binding pieces having substantially the same planar shape. 5. The resin file according to claim 4, wherein the binding pieces on at least the main part are connected to the backing part via a hinge mechanism. 6. The resin file according to claim 4, wherein the binding piece of the main part has a tubular or rod-shaped insertion member perpendicular to the binding piece. Characterized resin file. 7. The resin file according to claim 6, wherein the binding piece of the sub-portion is attached to an auxiliary binding member having a rod-shaped or tubular fitting member fitted to the insertion member of the main portion. A resin file having an engaging portion for removably engaging.