Book cover suitable for different thicknesses

Abstract

The utility model relates to the technical field of book covers, in particular to a book cover adapting to different thicknesses, which comprises an outer book cover, a paper clip wrapped on the inner side of a book ridge, thickness expansion areas symmetrically arranged on two sides of the wrapped book ridge, each wrapping thickness expansion area comprises a plurality of dents, and each dent and the wrapped book ridge are closely arranged in parallel. A foldable safe edge is arranged on the book opening side of the book cover, and the wrapping safe edge can cover the edge of paper at the book opening after being folded. When the thickness of a file is smaller than the width of the paper clip, the expansion area can serve as a part of the outer book cover, the width of the paper clip adapts to the thickness of the file, and when a user uses the paper clip, even if the file is too thin, the gap at the paper clip cannot be too large due to the fact that the width of the paper clip is difficult to avoid; when the thickness of the file is larger than the width of the paper clip, due to the fact that the expansion area has the width and is soft, even if the file is thick, the expansion area can wrap part of the side portion of the file, it is guaranteed that the cover is parallel to the paper face, and therefore the paper clip can be attached to and compatible with files of various thicknesses.

Description

Technical Field

[0001] The invention relates to the technical field of leather, in particular to leather suitable for different thicknesses. Background Art

[0002] Book covers are generally used in learning and office scenes. They are equipped with clamps to tighten document papers and protect them through the book covers. They are a common office supply. Currently, there is a problem with the use of book covers. If the total thickness of the clamped papers is thin, the user will feel empty at the spine of the cover, and there is a large space for movement when holding it tightly. If the total thickness of the clamped papers is thick, the book mouth of the cover will open to the upper and lower sides, and it cannot be closed tightly when placed normally. If it is closed tightly, tension may be applied to the spine or the entire cover, affecting the service life of the cover. The applicable thickness threshold of traditional book covers is relatively small. Utility Model Content

[0003] The present invention provides a cover sheet that is adaptable to different thicknesses, which can expand the thickness that the cover sheet is adaptable to and can effectively adapt to more or less paper.

[0004] The technical solution of the present invention is as follows:

[0005] A cover adapted to different thicknesses comprises an outer cover, wherein a paper clip is arranged on the inner side of a ridge of the outer cover, and thickness expansion areas are symmetrically arranged on both sides of the ridge.

[0006] As a further optimization of this solution, the thickness extension area includes a plurality of indentations, each of which is parallel to and closely arranged with the ridge.

[0007] As a further optimization of the present solution, a foldable edge guard is provided on the book edge side of the cover, and the edge guard can be folded to cover the edge of the paper at the book edge.

[0008] As a further optimization of the present solution, the edge guard includes a soft folding area and a suction area, the soft folding area is connected between the suction area and the outer cover, the soft folding area can flexibly wrap the book edge, and the suction area is used to buckle and suck on the surface of the outer cover on the other side, so that the closed state of the outer cover is stable.

[0009] As a further optimization of this solution, the soft folding area and the suction area are extended outward from the mouth of the leather book.

[0010] As a further optimization of this solution, the soft folding area includes a plurality of closely arranged indentations, each of which is parallel to the plane where the book edge is located.

[0011] As a further optimization of this solution, the width of the soft fold zone is greater than the sum of twice the thickness of the expansion zone and the ridge thickness.

[0012] The working principle and beneficial effects of the present invention are:

[0013] When the number of clamped documents is small and the thickness of the document is smaller than the width of the paper clip, the extension area can be used as a part of the outer cover, and the width of the paper clip can adapt to the thickness of the document. When the user uses it, even if the document is too thin, the gap at the paper clip will not be too large due to the width of the paper clip. When the thickness of the document is greater than the width of the paper clip, since the extension area has a width and is soft, even if the document is thicker, the extension area can wrap part of the side of the document and ensure that the outer cover is parallel to the paper surface, so it can fit and be compatible with documents of various thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is the front view of the application.

[0017] In the figure: 1. outer cover, 2. soft folding area, 3. suction area, 4. expansion area, 5. paper clip. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] As the instruction manual Figure 1 and 2 As shown, a book cover that can adapt to different thicknesses includes an outer book cover, a paper clip is arranged on the inner side of the spine, and thickness expansion zones are symmetrically arranged on both sides of the spine. The thickness expansion zone includes a plurality of indentations, each of which is parallel to the spine and closely arranged. A foldable edge guard is arranged on the book edge side of the book cover, and the edge guard can be folded to block the edge of the paper at the book edge. The edge guard also includes a soft folding area and a suction area, the soft folding area is connected between the suction area and the book cover, the soft folding area can flexibly wrap the book edge, and the suction area is used to buckle and suck on the surface of the book cover on the other side, so that the closed state of the book cover is stable. The soft folding area and the suction area are extended outward from the book edge of the book cover. The soft folding area includes a plurality of closely arranged indentations, each of which is parallel to the plane where the book edge is located, and the width of the soft folding area is greater than twice the sum of the thickness expansion area and the spine thickness.

[0020] When the present solution is applied, the file is first clamped with a paper clip. If the file is too thin and the thickness of the file is less than the width of the folder, the expansion area can be recessed inward, and the leather can press the outermost paper surface of the file. At this time, the soft expansion area can send the leather to the file, thereby pressing the leather and the file tightly to increase the user's grip. When the thickness of the file is similar to that of the paper clip, the expansion area is bent at a position close to the paper clip to tighten the file, and the expansion area, as a part of the outer leather, wraps the file surface. When the file is thicker and larger than the width of the paper clip, the expansion area, as a part of the spine, is bent at the outermost side of the spine, so that the outer leather can fit the file normally. Therefore, by applying the present solution, when the file thickness is between the width of the paper clip and twice the expansion area, the leather can fit the file perfectly. Even if the file is too thin, it can fit to a certain extent, which provides a better grip than ordinary leather. At the same time, while adapting to the effect of documents of different thicknesses, the soft folding area can also adapt to the documents of different thicknesses to wrap the book edge tightly, and the suction area can be adaptively configured with magnetic suction parts or Velcro on the other side of the outer cover, which can play a fixing role.

[0021] When making the cover, the entire spine can be made into an extended area with closely arranged indentations, and the paper clip can be fixed in the middle of the extended area. This design is convenient for cutting the extended area and for mass production.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cover adapted to different thicknesses, comprising an outer cover, wherein a paper clip is arranged on the inner side of the ridge of the outer cover, characterized in that: Thickness extension areas are symmetrically arranged on both sides of the main ridge, and the thickness extension areas include a plurality of indentations, each of which is parallel to and closely arranged with the main ridge.

2. The leather sheet adapted to different thicknesses according to claim 1, characterized in that: A foldable edge guard is arranged on the book edge side of the book cover, and the edge guard can be folded to cover the edge of the paper at the book edge.

3. The leather sheet adapted to different thicknesses according to claim 2, characterized in that: The edge guard also includes a soft folding area and a suction area, the soft folding area is connected between the suction area and the outer cover, the soft folding area can flexibly wrap the book edge, and the suction area is used to buckle and suck on the surface of the outer cover on the other side, so that the closed state of the cover is stable.

4. The cover material adapted to different thicknesses according to claim 3, characterized in that: The soft folding area and the suction area are formed by extending outwards from the mouth of the leather book.

5. The cover material adapted to different thicknesses according to claim 3, characterized in that: The soft folding area includes a plurality of closely arranged indentations, and each indentation is parallel to the plane where the book edge is located.

6. The cover material adapted to different thicknesses according to claim 3, characterized in that: The width of the soft folding zone is greater than the sum of twice the thickness of the expansion zone and the thickness of the ridge.

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