Cover and folder

Abstract

Provided is a cover body that can stand on its own in a state where two pages of a double-bound page can be easily visually identified. The cover body comprises: a cover portion having a first cover and a second cover that can be bent to open and close, the first cover and the second cover each including a dual structure portion that forms a dual structure; and a foot portion having a first cover side sliding portion that can be slidably accommodated in the dual structure portion of the first cover, and a second cover side sliding portion that can be slidably accommodated in the dual structure portion of the second cover, the foot portion being connected to the cover portion so as to be pulled out from the first cover and the second cover. In addition, the foot portion is pulled out from the first cover and the second cover, and supports the cover portion to stand on its own when the cover portion is opened.

Description

Technical Field

[0001] The invention relates to a cover body and a folder. Background Art

[0002] In addition, a filing tool has been proposed (for example, patent document 1), which is configured so that the front cover, back cover and central band of a document binding member can be bent toward the outer surface at a certain angle through horizontal folds when the document binding member is opened, and the entire device can be erected and placed in the shape of a reading table by bending the lower edge and the lower end of the document binding member.

[0003] Previously, a file folder has been proposed in which a cutout is formed on the free end side of the back cover and a string-like member is provided on the front cover (for example, Patent Document 2), and the string-like member has a snap-fitting member that can be detached from the cutout. In this technology, if the snap-fitting member is snapped into the cutout in a state where the cover body is closed, the opening of the cover body can be restricted. On the other hand, if the snap-fitting member is snapped into the state where the cover body is opened in the mating direction, the free end edges of the cover body can be grounded and stand on their own.

[0004] In addition, a system notebook (for example, Patent Document 3) has been proposed, in which one end of a band attached to the front cover or the back cover is provided with one part of a fastening member consisting of a fastening member and a fastening member at the other end side, and another part of the fastening member that can be detached from the one part of the fastening member is provided on the outer side of the back cover or the front cover. The notebook can be used in a state where the desired page is opened while standing upright on a table, etc., so that the reservation for the week can be confirmed without opening the book one by one.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent document 1: Japanese Utility Model Application Publication No. 63-170270;

[0008] Patent document 2: Japanese Patent Application Publication No. 2001-18566;

[0009] Patent document 3: Japanese Patent Application Publication No. 2001-277755. Summary of the invention

[0010] Problems to be solved by the invention

[0011] The file folder disclosed in Patent Document 1 can stand on its own in a double-paged manner, but since the lower parts of the front cover and the back cover are bent toward the outer surface, the lower part of the file P is not supported by the cover, and there is a risk of not being able to maintain a stable posture. In addition, the file folder disclosed in Patent Document 2 cannot stand on its own in a double-paged manner, and the classified notebook disclosed in Patent Document 3 further has a small-sized classified notebook in a double-paged manner on one side of the overall double-paged manner.

[0012] Therefore, an object of the present invention is to provide a cover body that can stand on its own in a state where two pages of a double-page spread can be easily visually recognized.

[0013] Solutions to Solve Problems

[0014] The cover body of the present invention comprises: a cover portion having a first cover and a second cover that can be bent to open and close, the first cover and the second cover each including a dual structure portion forming a dual structure; and a foot portion having a first cover side sliding portion that can be slidably accommodated in the dual structure portion of the first cover, and a second cover side sliding portion that can be slidably accommodated in the dual structure portion of the second cover, the foot portion being connected to the cover portion so as to be pulled out from the first cover and the second cover. In addition, the foot portion is pulled out from the first cover and the second cover, and supports the cover portion to be self-supporting when the cover portion is opened.

[0015] The foot part that can be pulled out from the cover part is provided separately from the cover part, so that the foot part can maintain the double-page state of the cover part and support the cover part as a whole. Therefore, it can stand independently in a state where the two pages of the double-page can be easily visually identified.

[0016] Alternatively, the foot portion may include a first foot plate connected to the first cover side sliding portion via a first fold and a second foot plate connected to the second cover side sliding portion via a second fold, and when the foot portion is pulled out from the first cover and the second cover and the cover portion is opened, the first fold and the second fold are respectively bent, and the first foot plate, the second foot plate, and a portion of the cover portion form a side surface in an approximately conical shape. With such an approximately conical shape, the cover body is stable and self-supporting.

[0017] Alternatively, the foot portion may have a slit extending over the first foot plate and the second foot plate, forming a tongue portion that is folded inward at the center by bending a fold extending from the approximate end of the slit into a convex fold and a fold extending from the middle of the slit into a concave fold. The tongue portion folded inward at the center resists the external force acting in the closing direction of the first foot plate and the second foot plate, and can maintain the above-mentioned approximately conical shape.

[0018] Alternatively, the cover portion may include a spine disposed between the first cover and the second cover, and the foot portion may include a third foot plate connected between the first foot plate and the second foot plate, and a connecting portion rotatably connecting the third foot plate relative to the spine. In this way, the direction in which the foot portion should be pulled out from the cover portion is guided, making it easier to use.

[0019] In addition, when the tongue portion is folded inwardly, the end edge of the tongue portion on the slit side can abut against a corresponding position in the cover portion, and in particular, if the cover body has a spine, it can also abut against the spine. In this way, the tongue portion can reinforce the above-mentioned approximately cone-shaped structure.

[0020] Alternatively, the first cover may include a first limiting portion in the double structure portion of the first cover that engages with the first cover side sliding portion to limit the sliding range, and the second cover may include a second limiting portion in the double structure portion of the second cover that engages with the second cover side sliding portion to limit the sliding range. In this way, the size of the leg portion to be pulled out from the cover portion can be appropriately determined, making it easy to use.

[0021] In addition, a file folder having the cover body may be provided. The cover body may be applied to, for example, a file folder. In addition, a book, a book cover, a photo frame, a mobile phone case, a tablet computer case, etc. having the cover body may be provided.

[0022] The above-mentioned configurations can be combined as much as possible without departing from the technical concept of the present invention.

[0023] Effects of the Invention

[0024] According to the present invention, it is possible to provide a cover body that can stand on its own in a state where the two pages of a double-page spread can be easily visually recognized. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a diagram showing a state where a folder is opened to stand on its own.

[0026] Figure 2 This is a diagram for explaining the structure of the cover body.

[0027] Figure 3 It is a perspective view showing a state where the file folder is closed.

[0028] Figure 4 It is a perspective view showing a state where the leg portion is pulled out from the cover portion.

[0029] Figure 5 It is a perspective view showing a state where the cover body is opened.

[0030] Figure 6 This is a perspective view of a self-standing file folder in a double-page state viewed from the inside.

[0031] Figure 7 This is a perspective view showing an example of a self-standing ring binder cover. Detailed implementation

[0032] The present invention will be described based on the drawings. In addition, the embodiments described below are examples of the present invention, and the present invention is not limited to the embodiments.

[0033] Figure 1 This is a view showing a state where the folder according to the embodiment is opened and made self-standing. The folder 1 is a transparent folder (transparent book) in which, for example, a plurality of pockets are bound between the cover bodies 2. The cover body 2 is formed of, for example, resin. In addition, the cover body 2 includes a cover portion 21 corresponding to the cover of the folder 1 and a leg portion 22 that supports the folder 1 in a self-standing state in a double-page manner.

[0034] The cover portion 21 includes a first cover 211 as a front cover, a second cover 212 as a back cover, and a spine 213. In addition, the cover portion 21 has a double structure in which, for example, the edges of two stacked plates are welded and joined. Between the two plates, the leg portion 22 pulled out from the cover portion 21 and used to support the cover portion 21 in a self-standing state can be folded and accommodated.

[0035] The leg portion 22 includes a first leg plate 221 that is stacked on the first cover 211 in a folded state, a second leg plate 222 that is stacked on the second cover 212 in a folded state, and a third leg plate 223 that is stacked on the spine 213 in a folded state. In addition, if the leg portion 22 is pulled out from the cover body 2 and the folder 1 is opened, a part of the first cover 211 and the second cover 212 that are opened into a flat shape, the first leg plate 221 and the second leg plate 222 form three surfaces of an approximate cone shape (for example, a triangular pyramid). And, through this cone shape, the folder 1 can be stably self-standing. In addition, an inverted V-shaped slit is provided throughout the first leg plate 221, the third leg plate 223, and the second leg plate 222. And, the tongue portion 224 formed by this slit is folded inwards at the center like an origami (center cut fold), the center is folded inwards as a concave fold, and the outside is folded inwards as a convex fold, thereby strengthening the above cone shape. In addition, in the present embodiment, the following will be referred to as "center cut fold": As shown, one or more concave folds are provided between the convex folds provided in each of the first leg plate 221 and the second leg plate 222 that are bent and angled, and the tongue portion 224 is folded in in a squeezing manner. Figure 1 As shown, one or more concave folds are provided between the convex folds provided in each of the bent and angled first leg plate 221 and second leg plate 222, and the tongue portion 224 is folded in in a squeezing manner.

[0036] Figure 2 This is a view for explaining the configuration of the cover body. Figure 2 This shows an example of a top view of the state where the folder 1 is opened. Figure 2In the figure, the internal structure of the cover body 2 as a double structure is indicated by the dotted line. In addition, the folds that are convex folds in the self-supporting state are indicated by the one-dot chain line, and the folds that are concave folds are indicated by the two-dot chain line. The folds indicated by the one-dot chain line and the two-dot chain line are thinned in a straight line, making bending easier. In addition, the parts joined by welding, for example, are indicated by thin dots.

[0037] The cover portion 21 includes a first cover 211, a second cover 212, and a spine 213 formed by welding the edges of an inner plate 214 and an outer plate 215. In addition, a leg portion 22 is sandwiched between the inner plate 214 and the outer plate 215. Figure 2 , a shadow is given to the foot 22. As described above, the foot 22 includes a first foot plate 221 stacked on the first cover 211, a second foot plate 222 stacked on the second cover 212, and a third foot plate 223 stacked on the spine 213. In addition, the outer plate 215 has cutouts from the middle of the spine 213 to the vicinity of the lower center of the first cover 211 and the vicinity of the lower center of the second cover 212, and is open. In addition, the foot 22 is exposed from the opening of the outer plate 215. In addition, the third foot plate 223 has an extension portion (also referred to as a "connection portion") 2231 extending in a short strip toward the upper portion of the spine 213, and the edge of the extension portion 2231 is welded to the inner plate 214 portion of the spine 213. The portion other than the extension portion 2231 of the foot portion 22 is not joined to the cover portion 21, and a thin-walled hinge portion 2232 is formed between the extension portion 2231 and the other portion (i.e., the end edge of the extension portion 2231). Therefore, when the folder 1 is closed, the foot portion 22 can slide (rotate) around the hinge portion 2232, and the user can pull the foot portion 22 out from the cover portion 21.

[0038] In addition, the first foot plate 221 is connected to the first cover side sliding part 2212 via the concave fold line 2211, and the first cover side sliding part 2212 is held between the inner plate 214 and the outer plate 215 even when it is pulled out from the cover part 21. A restriction portion 2213 as a convex portion for limiting the range of rotation is provided at the free end side of the first cover side sliding part 2212, which corresponds to the outer peripheral side of the rotation with the hinge part 2232 as the fixed end. Similarly, the second foot plate 222 is connected to the second cover side sliding part 2222 via the concave fold line 2221, and the second cover side sliding part 2222 is held between the inner plate 214 and the outer plate 215 even when it is pulled out from the cover part 21. A restriction portion 2223 as a convex portion for limiting the range of rotation is provided at the free end side of the second cover side sliding part 2222, which corresponds to the outer peripheral side of the rotation with the hinge part 2232 as the fixed end.

[0039] In addition, the cover body 2 includes limiting members 231 and 232 between the inner plate 214 and the outer plate 215 for limiting the range in which the leg portion 22 slides. Figure 2 In the figure, the limiting parts 231 and 232 are indicated by thin dotted lines. In addition, the limiting part 231 is set at a predetermined position in the first cover 211, for example, welded to the inner plate 214. The limiting part 232 is set at a predetermined position in the second cover 212, for example, welded to the inner plate 214. In addition, the limiting parts 2213 and 2223 of the foot 22 are accommodated between the inner plate 214 and the limiting part 231 or 232. Moreover, regarding the limiting parts 231 and 232, the edges of the joint parts with the inner plate 214 form a concave shape, respectively including limiting parts 2311 and 2321 that engage with the limiting parts 2213 and 2223 of the foot 22 to limit sliding.

[0040] In addition, the foot portion 22 is provided with an inverted V-shaped slit 225 throughout the first foot plate 221, the third foot plate 223, and the second foot plate 222. In addition, the area surrounded by the convex fold line from the end of the slit toward the third foot plate 223 and the slit 225 is also referred to as the tongue portion 224. When the cover body 2 is opened, the tongue portion 224 can be folded inwardly at the center, folded into a concave fold along the boundary between the third foot plate 223 and the first foot plate 221 and the boundary between the third foot plate 223 and the second foot plate 222, and the outer edge of the tongue portion 224 can be folded into a convex fold.

[0041] <How to use>

[0042] exist Figures 3 to 5 Shows the sequence for transforming a folder. Figure 3 2 is a perspective view showing a closed file folder. When the file folder 1 and the cover body 2 are closed, the foot 22 is accommodated in the cover 21, and the file folder 1 as a whole becomes a substantially rectangular book shape. In addition, a part of the foot 22 is exposed from the opening of the outer plate 215 of the cover 21, and the user can hold the foot 22.

[0043] Figure 4 2 is a perspective view showing the state where the leg is pulled out from the cover. If the user grips and pulls out the leg 22, the leg 22 (third leg plate 223) rotates around the hinge 2232. Figure 2 The limiting parts 2311 and 2321 of the limiting members 231 and 232 shown in the figure are engaged with the limiting parts 2213 and 2223 of the foot 22, and the rotation of the foot 22 is restricted, as shown in FIG. Figure 4 Such a pulled-out state is shown.

[0044] Figure 52 is a perspective view showing the state of opening the cover body. When the first cover 211 and the second cover 212 are opened, the first foot plate 221 and the second foot plate 222 of the foot portion 22 are bent into concave folds at the concave fold lines 2211 and 2221, respectively, and the foot portion 22 protrudes toward the spine direction of the folder 1. At this time, by placing the lower ends of the first foot plate 221, the second foot plate 222 and the third foot plate 223 on a plane, the folder 1 stands on its own in a double-bound state with a predetermined angle on the cover portion 21.

[0045] Furthermore, the user can fold the center inward, fold along the boundary between the third leg plate 223 and the first leg plate 221 and the boundary between the third leg plate 223 and the second leg plate 222 into a concave fold, and fold the outer edge of the tongue portion 224 connecting the third leg plate 223 and the end of the slit 225 into a convex fold. Figure 1 In addition, the upper end of the tongue portion 224 defined by the slit 225 abuts against a relative position in the cover portion 21 (i.e., the target spine 213 toward which the upper end of the tongue portion 224 folded inwardly toward the inner center of the above-mentioned cone shape is directed), and the tongue portion 224 resists the external force acting in the direction of the closing foot portion 22, thereby being able to stably maintain the folder 1 in an open state.

[0046] Figure 6 This is a three-dimensional view of a self-supporting double-page file folder viewed from the inside. Figure 6 In the example of FIG. 1 , a plurality of pockets 3 are bound between the first cover 211 and the second cover 212. In addition, when the first cover 211 and the second cover 212 are opened in directions substantially 180 degrees opposite to each other, the file folder 1 stands on its own. Such a file folder 1 is easy to see for the user, especially when the user is writing or cooking while opening documents, or when the user is using the file folder 1 as a music stand during the performance of a musical instrument.

[0047] In closed Figure 1 and Figure 6 When the folder 1 is in the state shown, the user folds the first cover 211 and the second cover 212 with the pocket 3 as the inner side. At this time, the first foot plate 221 engaged with the limiting member 231 is pulled to the first cover 211, and the second foot plate 222 engaged with the limiting member 232 is pulled to the second cover 212, and the central inward fold of the tongue portion 224 is released, so that the folder returns to the original state. Figure 4 Thereafter, the user pushes the pulled-out foot 22 back between the inner plate 214 and the outer plate 215 of the cover 21, and the folder 1 returns to the state in which it was. Figure 3 Thus, the file folder 1 can be folded into the same size as a general file folder, and is also easy to carry.

[0048] <Modification>

[0049] The cover body 2 may also be a cover body without the spine 213, and the first cover 211 and the second cover 212 are connected. In this case, the foot portion 22 does not have the third foot plate 223 or the extension portion 2231, and the hinge portion 2232. Figure 2 The upper part of the foot 22 is engaged along the outer edge of the foot 22, and the sliding range is limited so that the foot 22 does not slide to an unintended position between the inner plate 214 and the outer plate 215 of the cover 21. The double-structured cover 21 is engaged in a manner that guides the foot 22 between the accommodated state and the pulled-out state, thereby making it easy for the user to operate. In addition, in this case, the upper end of the tongue portion 224 folded inward by the center abuts against the relative position of the cover 21 (specifically, the fold between the first cover 211 and the second cover 212). In this case, the tongue portion 224 also resists the external force acting in the direction of closing the foot 22, thereby being able to maintain the folder 1 in an open state.

[0050] In addition, the cover body 2 can also be used as a cover other than a transparent file folder. Figure 7 1 is a perspective view showing an example of a self-supporting ring-bound loose-leaf cover. The ring-bound loose-leaf cover 10 includes the above-mentioned cover body 2 and a plurality of rings 4. In addition, the number of rings 4 is not particularly limited. In addition, the above-mentioned cover body 2 (not shown) can also be applied to various binding parts such as rod-bound folders or tube folders, or books, book covers, photo frames, mobile phone cases, tablet computer cases, etc. For example, the mobile phone case can also be a mobile phone case that holds a mobile phone in one of the first cover 211 and the second cover 212 of the cover body 2, and the other serves as a cover.

[0051] Furthermore, the above contents can be combined as much as possible within the scope not departing from the technical idea of ​​the present invention.

[0052] Explanation of symbols

[0053] 1 Folder

[0054] 2 Cover

[0055] 21 Cover

[0056] 211 First Cover

[0057] 212 Second Cover

[0058] 213 Spine

[0059] 214 inner plate

[0060] 215 Outer plate

[0061] 22 Feet

[0062] 221 First Foot

[0063] 2211 Concave fold line (crease)

[0064] 2212 First cover side sliding part

[0065] 2213 Restriction Department

[0066] 222 Second foot board

[0067] 2221 Concave fold line (crease)

[0068] 2222 Second cover side sliding part

[0069] 2223 Restriction Department

[0070] 223 The third foot

[0071] 2231 Extension (connection)

[0072] 231, 232 Restricted parts

[0073] 2311, 2321 Restricted Department.

Claims

1. A cover body, comprising: A cover portion including a first cover and a second cover that can be bent to open and close, wherein the first cover and the second cover each include a dual structure portion forming a dual structure; and The foot portion includes a first cover side sliding portion that can be slidably accommodated in the dual structure portion of the first cover, and a second cover side sliding portion that can be slidably accommodated in the dual structure portion of the second cover, and the foot portion is connected to the cover portion so as to be pulled out from the first cover and the second cover. The legs are pulled out from the first cover and the second cover to support the cover to be self-supporting when the cover is opened. The foot portion comprises a first foot plate connected to the first cover side sliding portion via a first fold and a second foot plate connected to the second cover side sliding portion via a second fold; When the foot portion is pulled out from the first cover and the second cover and the cover portion is opened, the first fold and the second fold are bent respectively, and the first foot plate, the second foot plate and a part of the cover portion form a side surface of an approximately cone shape. The foot has a slit extending from the first foot plate to the second foot plate; A tongue piece portion is formed in which a fold extending from the end of the slit is convexly folded, a fold extending from the middle of the slit is concavely folded, and the center is folded inwardly.

2. The cover body according to claim 1, wherein: The cover portion has a spine connected and arranged between the first cover and the second cover; The leg portion includes a third leg plate connected between the first leg plate and the second leg plate, and a connection portion that rotatably connects the third leg plate to the book spine.

3. The cover body according to claim 1 or 2, wherein: When the tongue portion is folded inwardly at its center, the end edge of the tongue portion on the slit side abuts against an opposing position in the cover portion.

4. The cover body according to claim 1 or 2, wherein: The first cover has a first limiting portion in the double structure portion of the first cover, which is engaged with the first cover side sliding portion to limit the sliding range; The second cover includes a second restriction portion in the dual structure portion of the second cover, the second restriction portion engaging with the second cover side sliding portion to restrict the sliding range. 5 . A file folder comprising the cover body according to claim 1 .

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