Stationery Case

Abstract

To provide a stationery case in which stored objects such as pencils are visible from outside and which is excellent in producibility.SOLUTION: A stationery case has: a case body having a pair of recesses on the right side and on the rear side; and a lid member which covers one end surface part in a width direction of the case body, is bonded, and openably / closably closes a pair of recesses in the state that it is folded in the width direction. The lid member is provided with: a core material formed in a planar shape; a face side cloth which is arranged on a distal side of the core material with respect to the recesses, contacts the face surface side of the core material, and covers the core material; an inner cloth which is arranged on a proximal side of the core material with respect to the recesses, contacts a back surface side of the core material, and covers the core material; a back plate which faces one end surface part in the width direction of the case body and is arranged inside the face side cloth; and a reinforcement material which crosses the back plate in a thickness direction of one end surface part in the width direction of the case body, covers thickness direction both end parts of one end surface part in the width direction, and is arranged. The core material, the face side cloth, the inner cloth, the back plate and the reinforcement material are formed transparent or semi-transparent. The reinforcement material is arranged between the core material and the inner cloth.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a stationery case having an openable lid. [Background technology]

[0002] It would be convenient to have a stationery case that allows the contents stored therein, such as pencils, to be visible from the outside. However, in the past, there was only knowledge that it would be convenient to construct a stationery case with only the inner tray made transparent, or that it would be convenient to construct a stationery case from a transparent material, and no stationery case was known that was made with the clear understanding that the contents stored therein would be visible from the outside. Patent Document 1 describes that stationery parts such as pencil cases are made from polyester copolymers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 08-034192 Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 only vaguely describes the general advantage of forming stationery parts such as pencil cases from polyester copolymers, namely that stationery parts with excellent transparency can be obtained, and does not clarify the specific structure of the stationery parts or pencil cases, i.e., which parts of the pencil case are to be made transparent, and how the transparent parts are to be configured when making the stationery case. Therefore, all that can be obtained from Patent Document 1 is information regarding materials that are suitable for use in stationery parts such as pencil cases, and no information regarding the specific configuration of pencil cases or the like is mentioned.

[0005] In view of the above circumstances, the present invention aims to provide a stationery case which allows stored items such as pencils to be visible from the outside, is easy for users to use, has excellent appearance quality, and is also excellent in terms of manufacturing efficiency. [Means for solving the problem]

[0006] The invention described in claim 1 has a case body in the shape of a flat rectangular tray, with a pair of recesses on both sides in the thickness direction in which stationery can be stored, and a lid member that covers and is joined to one end face in the width direction of the case body, and closes the pair of recesses in an openable and closable manner when folded in the width direction, the lid member comprising a core material formed in a planar shape, a surface fabric that is arranged on the distal side of the core material with respect to the recesses and abuts against the front side of the core material to cover the core material, an inner fabric that is arranged on the proximal side of the core material with respect to the recesses and abuts against the back side of the core material to cover the core material, a back panel that is opposed to the one end face in the width direction of the case body and arranged inside the surface fabric, and a back panel that is formed in a planar shape, the back panel that traverses the thickness direction of the case body at the one end face in the width direction of the case body and extends to both ends in the thickness direction. and a reinforcing material arranged to cover the core material, the outer fabric, the inner fabric, the back plate and the reinforcing material are formed to be transparent or translucent, the reinforcing material is arranged between the core material and the inner fabric, the case body is formed in a flat rectangular shape, the lid member is composed of a pair of lid portions respectively covering a pair of recesses of the case body, and a back portion formed between the pair of lid portions and covering and joined to one end face portion in the width direction of the case body, the back plate is arranged on the back portion, and the core material is composed of a pair of rectangular plate materials respectively constituting the pair of lid portions, the front and back portions of each core material are provided with a plurality of convex ridges, and the convex ridges are provided on the front and back portions that abut the front and back fabric.

[0007] The invention described in claim 2 is characterized in that in the back portion, the reinforcing material is disposed between the back panel and the inner fabric.

[0008] In the invention described in claim 3, the reinforcing member has a hole that is opened so that the cover member can be attached to the case body.

[0009] The invention described in claim 4 is characterized in that the inner fabric and the outer fabric are made of polyvinyl chloride ("PVC") resin, and the core material is made of copolyester resin.

[0010] The invention described in claim 5 is characterized in that the protruding ridges are formed along the length direction of the core material.

[0011] The invention described in claim 6 is characterized in that the reinforcing material is made of polyurethane. Effect of the Invention

[0012] According to the invention described in claim 1, the components constituting the lid, i.e., the core material, outer fabric, inner fabric, back panel and reinforcing material, are all transparent or semi-transparent, and the recess inside the case body can be seen from the outside of the stationery case through the lid, so it is possible to check that there are no shortages of pencils and other stored items without opening the lid and with the case closed. As a result, it is possible to prevent school children from "forgetting things." Furthermore, unlike conventional stationery cases, the cover member is formed to be transparent or translucent, so that the stationery case itself has excellent appearance quality, and users tend to use it with preference.

[0013] Furthermore, since the reinforcing material covers both thickness-wise ends of one widthwise end face of the case body, the resistance of the cover member to deformation such as bending that occurs when opening and closing is improved, and since the reinforcing material is positioned between the core material and the inner fabric, it is possible to prevent the reinforcing material from being overly noticeable from the outside of the stationery case.

[0014] Furthermore, according to the invention described in claim 1, the core material is made of a rectangular plate material, and the core material has a plurality of convex ribs on the front and back surfaces that abut the outer and inner fabrics. This makes it possible to view the plurality of convex ribs from the outside through the outer and inner fabrics, thereby improving the aesthetic appearance of the stationery case. In other words, if the core material and the outer fabric and inner fabric all have smooth adhesive surfaces, when they are brought into contact with each other during the manufacturing process, there may be areas where a small amount of air is trapped between the adhesive surfaces, even if the two are brought into contact carefully. If air gets mixed into the adhesive surface in this way, the air bubbles may be visible from the outside as small puddles, which is not good from the standpoint of ensuring the appearance quality. However, in the present invention, multiple ridges are formed, which prevents air from getting into the joint when the core material and the outer fabric are joined, and the multiple ridges act as a design accent, making it possible to improve the appearance quality of the stationery case.

[0015] Furthermore, when polyvinyl chloride (hereinafter abbreviated as "PVC") resin is used as the material for the outer and inner fabrics, the plasticizer contained in the polyvinyl chloride can cause the plastic material to melt. In order to avoid this situation, in the past, outer and inner fabrics were made of PVC resin that had been embossed to give the front and back sides a matte finish, which resulted in a loss of transparency. However, in the present invention, multiple ridges are formed in the core material, which reduces the contact area between the outer and inner fabrics and the core material, thereby preventing the core material from melting and ensuring sufficient transparency of the outer and inner fabrics.

[0016] According to the invention described in claim 2, since the reinforcing material is disposed between the back panel and the inner fabric at the back, when the stationery case is viewed from the outside with the lid member closed, the reinforcing material is hidden behind the back panel, making the reinforcing material less noticeable when viewed from the rear, thereby improving the appearance quality.

[0017] According to the invention described in claim 3, the reinforcing material has a hole portion opened so that the lid member can be attached to the case body. Therefore, even if the reinforcing material is positioned between the back panel and the inner fabric, that is, closer to the case body than the back panel, after the lid member is made, it is possible to easily attach the lid member to the case body, and smoothly complete the manufacture of the stationery case.

[0018] According to the invention described in claim 4, the inner and outer fabrics are made of PVC resin, the core is made of copolyester resin, and since copolyester resin has high chemical resistance, it is possible to prevent the core from melting due to the influence of the plasticizer contained in the PVC resin. As a result, it is possible to ensure good transparency of the entire cover member, and it is possible to improve the appearance quality, and it is possible to provide a stationery case that is also excellent in terms of impact resistance, especially since the core is made of copolyester resin.

[0019] According to the invention described in claim 5, since the convex rib portion is formed along the longitudinal direction of the core material, the convex rib portion extending along almost the entire length of the core material can be seen from the outside through the outer fabric of the cover member, thereby forming a pattern on the stationery case and enabling the aesthetic appearance to be improved.

[0020] According to the invention described in claim 6, since the reinforcing material is made of polyurethane, it is possible to provide a stationery case that can withstand relatively long-term use while ensuring the necessary transparency for the reinforcing material and ensuring the strength of the folding portion or hinge portion of the lid member, specifically the joint between the lid portion and the back portion of the lid member. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a plan view of a stationery case according to one embodiment of the present invention, showing the appearance of the front side of the stationery case. [Diagram 2] FIG. 2 is a plan view of the stationery case according to the embodiment, showing a state in which a front cover portion (a cover portion of a cover member) provided on the front side of the stationery case is open. [Diagram 3] FIG. 3 is a bottom view of the stationery case according to the embodiment, showing a rear cover portion (cover portion of the cover member) provided on the rear side of the stationery case in an open state. [Figure 4] FIG. 4 is an exploded perspective view showing the configuration of a lid member used in the stationery case according to the above embodiment. [Diagram 5] FIG. 5 is a cross-sectional view taken along the line AA shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0023] Fig. 1 is a plan view showing the overall configuration of a stationery case 1 according to one embodiment of the present invention. Fig. 2 is a view of the stationery case 1 seen from above or the front side, and Fig. 3 is a view of the stationery case 1 seen from below or the back side. Fig. 2 shows the stationery case 1 with the front cover 31 open, and Fig. 3 shows the stationery case 1 with the back cover 32 open.

[0024] With reference to Figures 2 and 3, the stationery case 1 according to this embodiment will be described in Figure 1. Here, Figure 1 shows the recess 21 of the case body 2 and the contents accommodated therein by a two-dot chain line, and indicates that the entire cover member 3 of the stationery case 1, particularly the front cover portion 31 and the back cover portion 32, are transparent or semi-transparent, so that the recess 21, i.e., the inside of the stationery case 1, can be seen from the outside through the cover member 3.

[0025] In this embodiment, the stationery case 1 is described as a storage device for storing a stationery set, such as pencils or pens, erasers, and rulers, that children use as teaching materials at school or at home, etc. However, the stationery case 1 is not limited to this, and can be configured as a storage device for age groups other than children, such as adults, and can also be embodied as a storage device for storing specific stationery, such as a storage device for storing only pencils or pens, or a storage device for storing only rulers, rather than a stationery set.

[0026] The stationery case 1 comprises a case body 2 and a cover member 3 attached to the case body 2 and covering a pair of recesses 21 provided on the front and back sides of the case body 2, respectively.

[0027] The case body 2 is shaped like a flat rectangular tray, and has recesses 21 capable of storing stationery on both sides in the thickness direction, i.e., on the front and back sides. The recesses 21 are roughly formed by a flat bottom surface 211 and side surfaces 212 provided on the entire peripheral edge of the bottom surface 211, and stationery can be stored in the recesses 21 through openings formed on the edges by the side surfaces 212.

[0028] In this embodiment, the case body 2 has a thin rectangular parallelepiped shape, and has, as the recess 21, a front recess 21a formed on the front side of the case body 2 and a rear recess 21b formed on the rear side. Specifically, as shown in Fig. 2, the front recess 21a is formed by the bottom portion 211 and a portion of the side portion 212 that extends upward over the entire outer periphery of the bottom portion 211, and a rectangular opening is formed by the upper end of the side portion 212. On the other hand, as shown in Fig. 3, the back recess 21b is formed by the bottom portion 211 and a portion of the side portion 212 that extends downward over the entire outer periphery of the bottom portion 211, and a rectangular opening is also formed by the lower end of the side portion 212.

[0029] In this embodiment, the front recess 21a is divided into a plurality of spaces, and can accommodate different stationery items. Specifically, the front recess 21a is divided into a first space S1 intended mainly for storing pencils, a second space S2 intended mainly for storing erasers, and a third space S3 intended for storing other stationery items. The width and depth of these spaces S1 to S3 are appropriately set according to the size of the stationery to be stored. On the other hand, the back recess 21b is not divided, and is formed as a single space S4 whose main purpose is to store rulers. It is possible to divide not only the front recess 21a, but also both the front recess 21a and the back recess 21b into multiple spaces, or to divide the back recess 21b instead of the front recess 21a.

[0030] The cover member 3 is manufactured separately from the case body 2, and after manufacturing, it is attached to one widthwise end face portion 22 of the case body 2, thereby covering the front side recess 21a and the back side recess 21b of the case body 2 in a bent widthwise state, and closing these recesses 21a, 21b in an openable and closable manner.

[0031] Specifically, the lid member 3 has a front lid portion 31 which extends in a planar direction over the entire case body 2 and covers the front recess 21a, a back lid portion 32 which extends in a planar direction over the entire case body 2 and covers the back recess 21b, and a back portion 33 which is interposed between the front lid portion 31 and the back lid portion 32, connects the front lid portion 31 and the back lid portion 32, and is joined to the case body 2 while covering one end surface portion 22 in the width direction. The lid member 3 is joined to one widthwise end surface 22 of the case body 2 via the back portion 33. In this state, the front lid portion 31 and the back lid portion 32 are both capable of rotating or bending about the joint with the back portion 33.

[0032] FIG. 4 is an exploded oblique view showing the components of the cover member 3 used in the stationery case 1 of this embodiment, and FIG. 5 is a cross-sectional view of the core material 301 (first core material 301a) of the cover member 3 taken along line AA shown in FIG.

[0033] In this embodiment, the lid member 3 is composed of a core material 301, a front cloth 302, an inner cloth 303, a back plate 304, and a reinforcing material 305, and these members 301 to 305 are overlapped in the order shown in Fig. 4 and joined together by applying heat welding at appropriate locations. The locations to be heat-sealed are, for example, the outer peripheral edges of the front cloth 302 and the inner cloth 303, and further, the joining region between the core material (first core material) 301a of the front lid part 31 and the back plate 304, and the joining region between the core material (second core material) 301b of the back lid part 32 and the back plate 304.

[0034] Core material 301 is formed as a single plate-like member having a flat rectangular shape, and is composed of a pair of core materials constituting front lid portion 31 and back lid portion 32, that is, first core material 301a and second core material 301b. The first core 301a extends in a planar direction over the entire front lid portion 31, and constitutes the front lid portion 31 together with the corresponding parts of the front fabric 302 and the inner fabric 303. The second core 301b extends in a planar direction over the entire back lid portion 32, and constitutes the back lid portion 32 together with the corresponding parts of the front fabric 302 and the inner fabric 303. In this embodiment, the first and second cores 301a, 301b are both made of recycled copolyester (trade name: "Peprolene") resin, and have the same planar and cross-sectional shapes.

[0035] The surface fabric 302 is in the form of a sheet having an area covering the entire planar direction of the cover member 3, and is disposed on the distal side of the core material 301 with respect to the recess 21 of the case body 2, and abuts against the front side of the core material 301 to cover the entire core material 301 from the front side. In this embodiment, the surface fabric 302 is made of PVC resin, and forms the outermost layer of the cover member 3.

[0036] The inner fabric 303, like the outer fabric 302, is in the form of a sheet having an area covering the entire planar direction of the cover member 3, and is disposed on the proximal side of the core material 301 with respect to the recess 21 of the case body 2, and abuts against the back side of the core material 301 to cover the entire core material 301 from the back side. In this embodiment, the inner fabric 303 is made of PVC resin, and forms the innermost layer of the cover member 3.

[0037] Here, the core materials 301a, 301b have a front surface portion s1 facing the back surface or lower surface of the outer fabric 302 and a back surface portion s2 facing the back surface or upper surface of the inner fabric 303, and the front surface portion s1 and the back surface portion s2 each have a plurality of protruding portions p1 that are protruding in a direction away from the core materials 301a, 301b. The core materials 301a, 301b come into contact with the outer fabric 302 and the inner fabric 303 via the plurality of protruding portions p1. In other words, in this embodiment, the core materials 301a, 301b are not in contact with the outer fabric 302 and the inner fabric 303 at portions other than the protruding strip portion p1.

[0038] Fig. 5 shows the configuration of the convex rib portion p1 according to this embodiment, taking the convex rib portion p1 provided on the first core material 301a as an example, in a cross section taken along line AA shown in Fig. 4. As described above, the first core material 301a and the second core material 301b have the same cross-sectional shape, and therefore the position of the convex rib portion p1 in the width direction of each of the core materials 301a, 301b is the same in the first core material 301a and the second core material 301b.

[0039] In this embodiment, the convex rib portion p1 is formed as a plurality of ribs extending parallel to each other, and extends over the entire length of the first core material 301a having a rectangular planar shape, as shown in Fig. 4. The convex rib portion p1 is formed on both the front surface portion s1 and the back surface portion s2 of the core material 301a, and the convex rib portion p1 of the front surface portion s1 and the convex rib portion p1 of the back surface portion s2 are located at the same widthwise position and overlap each other in a direction perpendicular to the plane of the first core material 301a. However, the convex rib portion p1 of the front surface portion s1 and the convex rib portion p1 of the back surface portion s2 may be located at positions shifted from each other in the widthwise direction.

[0040] As shown in FIG. 4, the back panel 304 is formed as a thin, elongated rectangular plate and is positioned inside the front fabric 302, at the center of the width of the front fabric 302, sandwiched between the first core material 301a and the second core material 301b, and in this embodiment, is positioned in contact with the back surface of the front fabric 302. As a result, in the stationery case 1, the back panel 304 is disposed opposite one widthwise end surface portion 22 of the case body 2. Here, Fig. 4 shows the front fabric 302 below the inner fabric 303, and therefore the upper side of Fig. 4 is the back side of the cover member 3, that is, the proximal side with respect to the case body 2. In this embodiment, the back panel 304 is made of polypropylene (PP).

[0041] Furthermore, the back plate 304 has holes at predetermined positions in the length direction for attachment to the case body 2.

[0042] The reinforcing material 305 is wider than the back plate 304 and formed in a planar shape, specifically, in the shape of an elongated sheet having approximately the same length as the back plate 304, and is disposed between the back plate 304 and the inner fabric 303 in the back portion 33 of the cover member 3. In this embodiment, the first core material 301a, the second core material 301b, and the back plate 304 are disposed side by side, and therefore the position of the reinforcing material 305 is between the core materials 301a, 301b, and the inner fabric 303. The reinforcing material 305 has a width sufficient to cross the back panel 304 in the width direction, in other words, in the thickness direction of the case body 2 at one end surface 22 in the width direction of the case body 2, and covers both ends 22a, 22b (FIGS. 2 and 3) in the thickness direction of the one end surface 22 in the width direction of the case body 2 after the stationery case 1 is manufactured. This increases the resistance of the cover member 3 to bending caused by opening and closing the front cover 31 and the back cover 32. In this embodiment, the reinforcing material 305 is made of polyurethane.

[0043] Furthermore, the reinforcing member 305 has a plurality of holes h1 at the same longitudinal positions as the holes formed in the back plate 304 for attachment to the case body 2. The holes h1 of the reinforcing member 305, together with the holes in the back plate 304 and the holes in the inner fabric 303, form attachment holes for the one widthwise end surface 22 of the case body 2. A hook portion (not shown) formed on the one widthwise end surface 22 of the case body 2 engages with this attachment hole, so that the back plate 304 with the holes h1 is fixed to the case body 2, thereby joining the case body 2 and the lid member 3.

[0044] The first core 301a, the second core 301b, the back plate 304, and the reinforcing material 305 are sandwiched from above and below by the front fabric 302 and the inner fabric 303, and are joined by heat welding at appropriate locations to form the lid member 3. In this embodiment, the first core 301a, the second core 301b, the front fabric 302, the inner fabric 303, the back plate 304, and the reinforcing material 305 are all transparent or semi-transparent, so the lid member 3 is formed to be transparent or semi-transparent throughout, and has visual transparency in the thickness direction. As a result, the recess 21, i.e., the inside of the stationery case 1, can be seen from the outside through the lid member 3.

[0045] 1, 2 and 3, the case body 2 is provided with a magnet portion 2a on the long side of the side surface portion 212 opposite to the long side portion that is the widthwise end surface portion 22. The configuration of the magnet portion 2a is similar to that employed in conventional magnetic stationery cases or pencil cases, and detailed description thereof will be omitted.

[0046] In contrast, the front cover 31 and the rear cover 32 are provided with magnetic bodies 31a and 32a that can be magnetically attracted to the magnet part 2a at the portions that come into contact with the magnet part 2a when the covers 31 and 32 are closed. The magnetic bodies 31a and 32a can be made of a magnetic material such as metal, and the front cover 31 and the rear cover 32 are fixed to the case body 2 with the recesses 21a and 21b closed because the magnetic bodies 31a and 32a are magnetically attracted to the magnet part 2a of the case body 2. On the other hand, when the magnetic bodies 31a and 32a are separated from the magnet part 2a to cancel the magnetic attraction of the magnetic bodies 31a and 32a to the magnet part 2a, the contact portions of the front cover 31 and the rear cover 32 are separated from the case body 2, the front cover 31 or the rear cover 32 opens, and the recesses 21a and 21b are opened.

[0047] In addition to the above, in this embodiment, the back surface of the front cover portion 31 is further provided with a pocket portion 311 made of a transparent or semi-transparent material, so that while maintaining the superior appearance due to its transparency or semi-transparency, it is possible to place a ruler or timetable, notes, or stickers or the like in the pocket portion 311 and enjoy the decorative effect by viewing it from the outside. The pocket portion 311 may be provided on the back surface of the back cover portion 32 instead of the front cover portion 31, or may be provided on the back surfaces of both the front cover portion 31 and the back cover portion 32. An example of a material that can be used for the pocket portion 311 is PVC resin.

[0048] The stationery case 1 according to this embodiment is configured as described above, and the actions and effects obtained by this embodiment will be described below.

[0049] First, since the components constituting the cover member 3, namely, the core material 301 (301a, 301b), the outer fabric 302, the inner fabric 303, the back panel 304 and the reinforcing material 305, are all transparent or translucent, the recesses 21 (21a, 21b) inside the case body 2 can be seen from the outside of the stationery case 1 through the cover member 3. This makes it possible to check whether any stored items, such as pencils, have been left behind while the lid member 3 is closed, without opening the lid member 3. Since the recess 21 is see-through and the stored items are visible, it is easy to determine whether to open the front lid portion 31 or the back lid portion 32 to take out or put away the stored items.

[0050] Furthermore, reinforcing material 305 made of high-strength polyurethane covers both thickness-wise ends 22a, 22b of width-wise end face portion 22 of case body 2, thereby improving the resistance of cover member 3 to deformation such as bending that accompanies opening and closing. Furthermore, reinforcing material 305 is disposed between core material 301 and inner fabric 303, so that reinforcing material 305 is not noticeable from the outside of stationery case 1.

[0051] Moreover, unlike conventional products, core material 301 is made of a single member, making it easy to process and assemble, and thus making it possible to provide a stationery case 1 that is advantageous in terms of manufacturing efficiency.

[0052] Secondly, since the core material 301 is made of a rectangular plate material, and the core material 301 has a convex rib portion p1 on the front surface s1 and back surface s2 which abut the outer fabric 302 and the inner fabric 303, the convex rib portion p1 can be seen from the outside through the outer fabric 302 and the inner fabric 303, thereby improving the aesthetic appearance of the stationery case 1 and improving the appearance quality, and stimulating demand.

[0053] In addition, the multiple convex rib portions p1 provided on the front portion s1 and back portion s2 of the core material 301 reduce the contact area of ​​the core material 301 with the outer fabric 302 and the inner fabric 303, eliminating the generation of air bubbles due to the infiltration of air between the adhesive surfaces during bonding, thereby improving the appearance quality. In other words, if the core material 301 and the outer fabric 302 and inner fabric 303 all have smooth adhesive surfaces, when the core material 301 and the outer fabric 302 and inner fabric 303 are brought into close contact during the manufacturing process, there may be areas where a small amount of air is trapped between the adhesive surfaces, even if the contact is brought into close contact carefully. When air gets into the adhesive surface in this way, air bubbles may be visible like small puddles through the outer fabric 302 and the inner fabric 303 from the outside of the stationery case 1, which is not good from the perspective of improving the appearance quality. However, in this embodiment, multiple convex rib portions p1 are formed on the core materials 301a, 301b, and the core materials 301a, 301b are configured to be adhered to the inner fabric 303 and the outer fabric 302 by the convex rib portions p1. This prevents air from getting into the joint when the core material 301 is joined to the outer fabric 302 and the inner fabric 303, thereby improving the appearance quality of the stationery case.

[0054] Furthermore, if PVC resin is used as the material for the outer fabric 302 and the inner fabric 303, the plasticizer contained in polyvinyl chloride may cause other plastic materials to melt if they are in continuous contact with each other in an environment with little air. However, in the present embodiment, core materials 301a, 301b are made of recycled copolyester resin (trade name: Peprolene), which has high chemical resistance, and in the present embodiment, core materials 301a, 301b have multiple convex ridges p1 formed therein, which reduces the contact area between outer fabric 302 and inner fabric 303 and core material p1, thereby preventing core material p1 from melting and ensuring sufficient transparency of outer fabric 302 and inner fabric 303. In addition, recycled copolyester (trade name: "Peprolen") resin is highly impact resistant, making it possible to provide a stationery case 1 that can withstand tough use and is more durable. Furthermore, conventional products use PVC resin outer fabric 302 and inner fabric 303 that are embossed to give them a matte surface on the front and back, but this causes a problem of loss of transparency. However, in this embodiment, since a plurality of protruding ridges p1 are formed on the core members 301a and 301b, it is possible to ensure sufficient transparency. Furthermore, the formation of the protruding ridge portion p1 also makes it possible to make scratches and dust that may occur or get caught during the manufacturing process less noticeable.

[0055] Thirdly, since the reinforcing material 305 is disposed between the back panel 304 and the inner fabric 303 in the back portion 33, when the stationery case 1 is viewed from the outside with the lid member 3 closed, the reinforcing material 305 is hidden behind the back panel 304, thereby making it possible to improve the appearance quality. In this regard, conventionally, a mesh-like member made of tarpaulin (a fiber-reinforced polyvinyl chloride sheet) has been used as the reinforcing material 305, and this has been sandwiched between the outer fabric 302, the core material 301, and the back panel 304. However, from an aesthetic point of view, such a member made of a mesh-like material is not suitable for a transparent cover member such as that in this case, and the configuration of this embodiment makes it possible to create a product configuration with good appearance quality.

[0056] Fourthly, since the reinforcing material 305 has a hole h1 opened so that the lid member 3 can be attached to the case body 2, after the lid member 3 is produced with the reinforcing material 305 positioned between the back panel 304 and the inner fabric 303, i.e., with the reinforcing material 305 positioned closer to the case body 2 than the back panel 304, the lid member 3 can be easily attached to the case body 2, and the manufacture of the stationery case 1 can be completed smoothly.

[0057] Fifth, since the outer fabric 302 and the inner fabric 303 are made of PVC resin, and the core material 301 is made of recycled copolyester (trademark: "Peprolen") resin, it has excellent impact resistance, chemical resistance and transparency. Combined with the effect of suppressing melting of the core material 301 due to the influence of the plasticizer contained in the PVC resin, it is possible to ensure good transparency of the entire cover member 3.

[0058] Sixth, since the convex striated portion p1 is formed along the longitudinal direction of the core material 301, the convex striated portion p1 extending along almost the entire length of the core material 301 can be seen from the outside through the outer fabric 302 of the cover member 3, thereby forming a pattern on the stationery case 1 and enabling the aesthetic appearance to be improved.

[0059] Seventh, since the reinforcing material 305 is made of polyurethane, it is possible to provide a stationery case 1 that can withstand relatively long-term use while maintaining transparency and ensuring the necessary strength at the folding or hinge portions of the lid member 3, specifically, at the joint between the front lid portion 31 and the spine 33 and the joint between the back lid portion 32 and the spine 33 of the lid member 3.

[0060] In the above description, as shown in FIG. 5(a), a rib portion is used as the convex rib portion p1 of the core material 301. The convex rib portion p1 is not limited to this, and can have other shapes or cross-sectional shapes. As an example of the convex rib portion p1 that can be substituted for the rib portion, as shown in FIG. 5(b), a concave-convex portion having a triangular cross-sectional shape can be given. In this way, the shape or cross-sectional shape of the convex rib portion p1 can be appropriately changed in consideration of the impression that the convex rib portion p1 gives to the user regarding the appearance of the stationery case 1. [Explanation of symbols]

[0061] 1. Stationery case 2. Case body 2a...Magnet part 3…Cover member 21…Recess 22...One end surface in the width direction 22a, 22b...thickness direction end 311…Pocket 21a…Front recess 21b…Back recess 31…Front side lid part 32…Back cover 33...back 31a...Magnetized object 32a...Magnetized object

Claims

1. A case body having a flat rectangular tray shape and a pair of recesses on both sides in the thickness direction capable of storing stationery; a cover member that covers and is joined to one end surface of the case body in the width direction and closes the pair of recesses in an openable and closable manner when folded in the width direction, The cover member is A core material formed into a planar shape; A surface fabric is disposed on the distal side of the core material with respect to the recess, and is in contact with a surface side of the core material to cover the core material; An inner fabric is disposed proximal to the core material with respect to the recess and abuts against a back surface side of the core material to cover the core material; A back panel arranged on the inside of the outer fabric and facing the one end surface of the case body in the width direction; A stationery case comprising a reinforcing member formed in a plane, extending across the back plate at one end surface in the width direction of the case body in the thickness direction of the case body and covering both ends in the thickness direction, The core material, the outer fabric, the inner fabric, the back panel, and the reinforcing material are formed to be transparent or translucent, The reinforcing material is disposed between the core material and the inner fabric, The case body is formed in a rectangular shape in plan view, the lid member is composed of a pair of lid portions respectively covering a pair of recesses of the case body, and a back portion formed between the pair of lid portions and joined to cover one end surface portion in a width direction of the case body, The back plate is disposed on the back portion, and the core material is made of a pair of rectangular plate materials constituting each of the pair of lid portions, and a plurality of convex strips are provided on the front and back surfaces of each core material, A stationery case characterized in that the multiple convex portions are provided on the front and back portions that abut the outer and inner fabrics.

2. A stationery case as described in Claim 1, characterized in that, in the back portion, the reinforcing material is arranged between the back panel and the inner fabric.

3. A stationery case as described in claim 2, characterized in that the reinforcing material has a hole portion opened so that the cover member can be attached to the case body.

4. The inner fabric and the outer fabric are made of polyvinyl chloride (PVC) resin, The stationery case according to any one of claims 1 to 3, wherein the core material is made of a copolyester resin.

5. A stationery case as described in claim 1, characterized in that the convex rib portion is formed along the longitudinal direction of the core material.

6. A stationery case described in any one of claims 1 to 5, characterized in that the reinforcing material is made of polyurethane.

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