spine

The spine cover with expandable and contractible features addresses visibility and strength issues of conventional labels, providing flexible attachment and improved durability for books of varying thicknesses.

JP7867320B1Active Publication Date: 2026-05-29多田 誠仁

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
多田 誠仁
Filing Date
2026-02-21
Publication Date
2026-05-29

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Abstract

This product solves the problem of poor visibility of conventional book spines, while also providing a spine that can flexibly accommodate various thicknesses of books and other materials, and offers improved strength. [Solution] The spine cover 1 according to the present invention consists of two sheet-like plate sections 2, a variable section 6 connected in the gap between the two plate sections 2 arranged on the left and right, and a header section 5 in which the variable section 6 is one piece of a cube 4 with top and bottom openings. The header section 5 has connecting sections 19 where the left and right sides of the variable section 6 connect to the two plate sections 2, and the sheet-like header piece 17 extending forward from the connecting sections 19 and the variable section 6 form a cube 4. The variable section 6 is characterized in that it is formed so that the two plate sections 2 can move closer to and away from each other.
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Description

Technical Field

[0001] The present invention relates to a back cover used by attaching it to a booklet or the like.

Background Art

[0002] Conventionally, a back cover sticker refers to a label or sticker that is pasted on the "back" part visible when books or booklets are lined up on a shelf. It is mainly used to make it easy to quickly determine "what the content is" at a glance.

[0003] For example, in the technology of the title label laminate according to Patent Document 1, in a title label laminate formed by forming adhesive portions of a certain width along opposite sides of the back surface of a label piece having a substantially rectangular shape as a whole and laminating a large number of these label pieces, the adhesive portions are constituted by a re-peelable adhesive, and one end portion in the longitudinal direction of each of the adhesive portions is positioned at a certain distance inside from the edge of the label piece sandwiched between these adhesive portions.

[0004] According to this technology, since the adhesive portions of the label pieces are directly adhered to the lower label pieces to form the laminate, there is no need for release paper to cover the adhesive portions, and thus it can be produced at a lower cost. Also, since the edges of the label pieces are made easy to roll up one by one, the handling of the label pieces becomes easy, and the label pieces can also be used as ordinary adhesive memo labels that can be adhered and peeled off at a predetermined location, so that the range of uses of the label pieces is said to be expanded.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The laminated heading labels described in Patent Document 1, as well as conventional spine labels, are attached to books and other items to identify which notebook or other item is which. However, with conventional spine labels, the text written on the label becomes difficult to read when attached to booklets or other items.

[0007] Furthermore, even if a book or booklet can be identified from among those lined up on a shelf by spine labels, it is not easy to manually retrieve the intended book or book. Therefore, one would want to grasp the spine label and pull it out, but conventional spine labels have the drawback of being insufficiently strong and easily deforming.

[0008] This invention was made in view of the circumstances described above, and aims to solve the problem of poor visibility of conventional spines, as well as to provide a spine that can flexibly accommodate various thicknesses of books and other items while also improving strength. [Means for solving the problem]

[0009] To achieve the above objectives, the present invention provides the following technologies.

[0010] The invention according to claim 1 provides a spine cover comprising two sheet-like plate portions, a variable portion connected to the gap between the two plate portions arranged on the left and right, and a label portion in which the variable portion is one piece of a cube with an opening at the top and bottom, wherein the label portion has connecting portions at the connection points between the left and right sides of the variable portion and the two plate portions, and the cube is formed by the sheet-like label piece extending forward from the connecting portions and the variable portion, and the variable portion is formed so that the two plate portions can move closer to and away from each other.

[0011] The invention according to claim 2 provides a spine cover according to claim 1, characterized in that the variable portion has stepped portions that advance forward toward the center on the left and right inner edges of the back surface.

[0012] The invention according to claim 3 provides a spine cover according to claim 2, characterized in that the variable part and both plate parts are formed at the same height and connected in series.

[0013] The invention according to claim 4 provides a spine cover according to claim 3, characterized in that the index portion forms a substantially triangular prism with upper and lower openings using two index pieces and the variable portion.

[0014] The invention according to claim 5 provides a spine cover according to any one of claims 1 to 4, characterized in that the variable part is formed of an expandable and contractible elastic member.

[0015] The invention according to claim 6 provides a spine cover according to any one of claims 1 to 4, characterized in that the variable part is formed with an expandable and contractible telescopic structure.

[0016] The invention according to claim 6 provides a spine cover according to any one of claims 1 to 5, characterized in that a stepped portion is formed on the left and right sides of the back surface of the variable portion, extending forward toward the center. [Effects of the Invention]

[0017] According to the invention described in claim 1, the invention comprises two sheet-like plate portions, a variable portion connected to the gap between the two plate portions arranged on the left and right, and a heading portion in which the variable portion is one piece of a cube with upper and lower openings. The heading portion has connecting portions on the left and right sides of the variable portion and the connecting portions with the two plate portions, and the sheet-like heading piece extending forward from the connecting portions and the variable portion form a cube. Since the variable portion is formed so that the two plate portions can move closer together and further apart, the visibility of the heading of the subject can be improved, and it can flexibly accommodate various thicknesses of books and the like, and the strength of the heading portion can also be improved.

[0018] According to the invention described in claim 2, the variable portion has stepped sections that extend forward toward the center on the left and right inner edges of the back surface, and because the variable portion has a concave groove structure, it can be securely fixed to the corner of the object to be attached.

[0019] According to the invention described in claim 3, since the variable part and the two plate parts are formed at the same height and connected in series, the strength of attaching the back cover is improved.

[0020] According to the invention described in claim 4, the title part forms a substantially triangular prism with an upper and lower opening by two title pieces and the variable part, making it easier to take out a booklet or the like with the back cover attached.

[0021] According to the invention described in claim 5, since the variable part is an elastic member that can expand and contract, it can be used regardless of the thickness or number of the object.

[0022] According to the invention described in claim 6, since the variable part is formed in a telescopic structure, it can be used regardless of the thickness or number of the mounting object, and there is less deterioration over time, and any thickness can be sandwiched for a long time.

Brief Description of the Drawings

[0023] [Figure 1] (a) is a rear perspective view of the back cover according to this embodiment, and (b) is a front perspective view. [Figure 2] (a) is a plan view schematically showing an example of the variable part of the back cover according to this embodiment, (b) is a rear perspective view, and (c) is a front perspective view. [Figure 3] (a) is a simplified perspective plan view showing the state where the variable part of the back cover according to this embodiment is expanded, and (b) is a simplified perspective plan view showing the state where the variable part is contracted. [Figure 4] (a) is a rear perspective view of the back cover according to this embodiment, and (b) is a front perspective view. [Figure 5] (a) is a perspective view showing an example of use where the back cover according to this embodiment is attached to one book or the like, and (b) is a perspective view showing an example of use where it is attached to three books or the like.

Modes for Carrying Out the Invention

[0024] The gist of the spine according to an embodiment of the present invention is that it comprises two sheet-like plate sections, a variable section connected in the gap between the two plate sections arranged on the left and right, and a header section in which the variable section is one piece of a cube with top and bottom openings. The header section has connecting sections on the left and right sides of the variable section and the connecting points with the two plate sections, and the sheet-like header piece extending forward from the connecting sections and the variable section form a cube. The variable section is characterized in that it is formed so that the two plate sections can move closer together and further apart. In other words, the aim is to solve the problem of poor visibility of conventional spines and to provide a spine that can flexibly accommodate various thicknesses of books and other items while also improving strength.

[0025] Hereinafter, embodiments of the spine cover 1 according to the present invention will be described with reference to the drawings. In this description, structures and parts that are identical or symmetrical on the left and right sides will, in principle, be denoted by the same reference numerals, and only one side will be described, with the other side being omitted as appropriate.

[0026] In this invention, the spine of the book will be described with the index section 5 side as the front and the plate section 2 side as the rear, as shown in Figure 1(a).

[0027] An embodiment of the present invention, as shown in Figures 1(a) and 1(b), consists of two sheet-like plate portions 2, a variable portion 6 connected to the gap between the two plate portions 2 which are arranged on the left and right, and a header portion 5 in which the variable portion 6 is one piece of a cube 4 with top and bottom openings. The header portion 5 has connecting portions 19 where the left and right sides of the variable portion 6 connect to the two plate portions 2, and the sheet-like header piece 17 extending forward from the connecting portions 19 and the variable portion 6 form a cube 4, and the variable portion 6 is formed so that the two plate portions 2 can move closer to and away from each other.

[0028] Furthermore, as shown in Figure 4(a), the variable portion 6 forms stepped portions 7 that advance forward toward the center on the left and right inner edges of the back surface, and the variable portion 6 and both plate portions 2 are formed at the same height and connected to each other.

[0029] Furthermore, the heading section 5 forms a roughly triangular prism 4 with upper and lower openings using two heading pieces 17 and a variable section 6.

[0030] Specifically, as shown in Figures 1(a) and 1(b), the plate portion 2 is formed from two identical rectangular sheets of paper, and the left and right sides of the variable portion 6 (described later) are connected to the connecting portion 19, which is the connection point between the two plate portions 2. The ends of the two identical rectangular sheets of paper that extend forward are connected to the end of the label piece 17, and together with the variable portion 6, the label portion 5 is a roughly triangular prism 4 which is a cube with openings at the top and bottom.

[0031] Furthermore, rectangular sheet-shaped connecting parts 3, consisting of connecting materials such as double-sided tape or hook-and-loop fasteners, are attached to the back surfaces of both plate-shaped parts 2 for connecting to booklets, books, etc. that will be attached.

[0032] Furthermore, the index tab 17 may be provided with a recess 18 made of a notch, as shown in Figures 4(a) and 4(b), to facilitate gripping and pulling out the index tab 5 with the fingers, or it may be provided with a through hole to which a clip of a writing instrument can be freely attached, or a bookmark string may be added.

[0033] In this embodiment, the index section 5 is formed into a roughly triangular prism 4 with a triangular shape in plan view by two index pieces 17 of the same shape and size. However, various modifications and changes are possible within the scope of the gist of the present invention, such as forming it into a roughly rectangular prism with top and bottom openings in plan view by forming three index pieces 17.

[0034] In other words, the header piece 17 can be any cube with upper and lower openings, as long as it extends continuously from one connecting portion 19 to the other connecting portion 19, or the header portion 5 can be formed by bending or folding the middle portion to create a cube of any shape.

[0035] Furthermore, the material of the plate portion 2 is not limited to paper; for example, it may be made of synthetic resin or metal. Also, while the material of the index tab 17 is preferably paper for easy writing of memos and supplementary information, it may also be made of synthetic resin or metal. Various modifications are possible within the scope of the gist of the present invention.

[0036] Next, the variable part 6 is formed from an expandable and contractible elastic member or a material and shape that allows for expansion and contraction, such as a telescopic structure, so that it can be used regardless of the thickness or number of books or other items B to be attached, as shown in Figures 5(a) and 5(b).

[0037] Specifically, if the elastic member is made of rubber, the entire variable section 6 is made of a rectangular sheet of rubber, as shown in Figures 1(a) and 1(b), and is connected to the connecting sections 19, which are the ends of the two plate sections 2.

[0038] This variable section 6, made of an elastic material, maintains a minimum width when not in use and extends horizontally according to the thickness of the books, etc. B stored inside.

[0039] Furthermore, if the variable part 6 has a telescopic structure, as simplified in Figures 2(a) to (c), it has a structure in which rigid parts that gradually become smaller towards the center are stacked and slid to adjust the width of the variable part 6. As these parts slide while being housed inside, the width of the variable part 6 can be widened or narrowed, and the shape can be stabilized in the widened position.

[0040] Specifically, the telescopic 10 is made of synthetic resin or metal and, as shown in Figure 3(a) showing the extended state and Figure 3(b) showing the retracted state, consists of a base 11 formed in the center in a roughly rectangular block shape and a first housing section 13 located on the left and right sides of the base 11 that can accommodate the base 11 inside. The base 11 is formed by extending stoppers 12 that protrude forward and backward from both the left and right ends, and the first housing section 13 is formed by creating a space inside consisting of an opening 14 that is just large enough to prevent the base 11 from coming out due to the stoppers 12, and an inner wall 15 with a width that approximates the outer shape of the base 11 on the stopper 12 side. The width of the variable section 6 is stabilized by the frictional force with which the base 11 contacts the opening 14 and the inner wall 15 of the first housing section 13.

[0041] The number of housing sections in the telescopic structure is arbitrary. For example, in the telescopic structure shown in Figures 2(a) to 2(c), a central base 11 and first and second housing sections 13 and 16 are formed. In this case, a stopper 12 similar to that of the base 11 is formed on one end of the first housing section 13, and the second housing section 16 is formed with the same structure as the first housing section 13, allowing for fine control over the extension and retraction of the variable section 6.

[0042] Furthermore, as shown in Figures 2(a)-(c), 3(a)(b), and 4(a)(b), the variable portion 6 can also have stepped portions 7 that extend forward toward the center on the left and right inner edges of the back surface.

[0043] Specifically, when a sheet-like rubber material, which is an elastic member as described above, is used for the variable part 6, stepped sections 7 are connected to the left and right sides of the variable part 6, as shown in Figures 4(a) and 4(b). If it is a telescopic structure, stepped sections 7 are connected to the left and right sides of the variable part 6, as shown in Figures 2(a) to 2(c) and 3(a) and 3(b).

[0044] The stepped portion 7 is made of synthetic resin or metal, and forms a rectangular block-shaped first protrusion 8 and a second protrusion 9 that create a symmetrical, stepped step from the outside. This allows the variable portion 6 to be securely fixed to the corner of the book or other object to be attached, further enhancing its retractable properties.

[0045] The number and shape of the protrusions of the stepped portion 7 are not limited to this embodiment, and various modifications and changes are possible within the scope of the gist of the present invention.

[0046] As described above, the spine cover 1 according to the embodiment of the present invention is composed of two sheet-like plate portions 2, a variable portion 6 connected in the gap between the two plate portions 2 which are arranged on the left and right, and a heading portion 5 in which the variable portion 6 is one piece of a cube 4 with top and bottom openings. The heading portion 5 has connecting portions 19 where the left and right sides of the variable portion 6 are connected to the two plate portions 2, and the sheet-like heading piece 17 extending forward from the connecting portions 19 and the variable portion 6 form a cube 4. Since the variable portion 6 is formed so that the two plate portions 2 can move closer to and further apart, the visibility of the heading of the subject can be improved and the strength of the heading portion 5 can also be improved.

[0047] Furthermore, since the variable part 6 has stepped sections 7 that extend forward toward the center on the left and right inner edges of the back surface, the variable part 6 has a concave groove structure, which allows it to be securely fixed to the corners of the object to be attached.

[0048] Furthermore, since the variable section 6 and both plate sections 2 are formed at the same height and connected in series, the strength of the attachment of the spine 1 is improved.

[0049] Furthermore, the heading section 5 forms a roughly triangular prism 4 with upper and lower openings using two heading pieces 17 and a variable section 6, making it easier to remove booklets, etc., to which the spine 1 has been attached.

[0050] Furthermore, if the variable part 6 is an elastic member that can be stretched or retracted, it can be used regardless of the thickness or number of objects.

[0051] Furthermore, if the variable part 6 is formed with a telescopic structure, it can be used regardless of the thickness or number of objects to be attached, and it will have less deterioration over time, allowing it to clamp objects of any thickness for a long period of time.

[0052] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these specific embodiments, and various modifications and changes are possible within the scope of the gist of the invention as described in the claims. [Explanation of symbols]

[0053] B Books etc. 1. Spine 2 Plate part 3. Connection part 4. Cube (or triangular prism) 5. Heading Section 6 Variable part 7 Stepped section 8 First protrusion 9 Second protrusion 10 Telescopic 11 Base 12 Stopper 13. First Detention Unit 14 Opening 15 Inner wall 16. Second Detention Unit 17 Headline 18 recesses 19 Continuous section

Claims

1. It consists of two sheet-like plate sections, a variable section connected to the gap between the two plate sections positioned on the left and right, and a header section in which the variable section forms one side of a cube with upper and lower openings. The heading section has connecting sections on the left and right sides of the variable section and the two plate sections, and the cube is formed by the sheet-like heading piece extending forward from the connecting sections and the variable section. The variable part is characterized in that both plate portions are formed to be able to move closer together or further apart.

2. The spine of the book according to claim 1, characterized in that the variable portion has stepped portions that advance forward toward the center on the left and right inner edges of the back surface.

3. The spine cover according to claim 2, characterized in that the variable portion and both plate portions are formed at the same height and connected in series.

4. The spine cover according to claim 3, characterized in that the heading portion forms a substantially triangular prism with upper and lower openings using the two heading pieces and the variable portion.

5. The spine cover according to any one of claims 1 to 4, characterized in that the variable portion is formed of an expandable and contractible elastic member.

6. The spine cover according to any one of claims 1 to 4, characterized in that the variable portion is formed with an expandable and contractible telescopic structure.