JP2014213534A - Fastener and booklet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastener capable of fastening intermediate sheets of various thickness dimensions with a relatively simple structure and to provide a booklet having the fastener.SOLUTION: A fastener 2 used for a booklet 1 having plural intermediate sheets between front pages 3, and holding the intermediate sheets so as to be inserted and released in a state that part of the intermediate sheets is spliced to one front page, comprises: a substrate 7 fixed to an inner face of the one front page; and an intermediate sheet holding body 8 disposed on the substrate in an integrated state, and capable of moving to the substrate.

Description

  The present invention relates to a fastener for detachably holding a booklet in a booklet, and a booklet provided with the fastener.

  Conventionally, in booklets such as books, notebooks, diaries (notebooks), etc., a desired page can be kept open or the desired page can be opened immediately when the booklet is opened from the closed state next time. Various fasteners are known for use in place of bookmarks.

  For example, the fasteners as shown in FIGS. 11 and 12 may cause the cover or inner paper to bend in the thickness direction as shown in FIGS. 13 and 14 when the booklet is closed when too many sheets are to be fastened. On the other hand, if there are too few sheets to be fastened, there is a problem that when the booklet is opened, the inner paper is easily detached from the fastener.

  In order to solve such a problem, various fasteners that can flexibly cope with changes in the number of intermediate sheets to be fastened are known (see, for example, Patent Document 1 below).

  This fastener is provided with an adjustment mechanism for slidingly moving a presser plate that holds the intermediate paper with respect to the fixed plate according to the thickness dimension due to the difference in the number of intermediate papers. Specifically, one end of the holding plate is attached to one end side and the other end side of the holding plate so that the relative positions of the holding plate and the fixing plate can be changed. The other end side is penetrated by each insertion hole provided in the fixed plate.

  However, the thing provided with such an adjustment mechanism had the problem that the whole fastener had become very complicated.

Japanese Utility Model Publication No. 61-112973

  An object of the present invention is to provide a fastener that can fasten a middle sheet of various thicknesses with a relatively simple structure, and a booklet including the fastener.

  The present invention employs the following configuration in order to solve the above-described problems. That is, the fastener according to the present invention is used for a booklet in which a plurality of center sheets are arranged between cover sheets, and holds a part of the center sheet so that it can be inserted and removed while attached to one cover sheet. The substrate includes a substrate fixed to the inner surface of the one cover, and an intermediate paper holder integrally provided on the substrate and movable with respect to the substrate.

  Here, the “booklet” may be anything as long as it includes a cover and a middle paper, and for example, a book, a notebook, a diary, and other various types are conceivable.

  The intermediate paper holder preferably has one end integrally connected to the substrate and the other end movably engaged with the substrate within a certain range.

  As a preferred example of the intermediate paper holder, a holder main body that holds the intermediate paper between the substrate and a first body that is provided continuously at one end of the holder main body and is integrally held on the substrate. A gusset portion, a second gusset portion provided continuously at the other end of the holder body, and a slidable engagement with the substrate provided continuously at the tip of the second gusset portion. The thing provided with the joint part is mentioned.

  A preferred embodiment is one in which the substrate and the inner paper holder are integrally formed of a single synthetic resin sheet material.

  Moreover, as a booklet provided with the fasteners as described above, it is preferable to provide the above-described fasteners on the inner surface of at least one cover.

  The fastener is preferably provided at a position where a retaining gap is formed between the outer edge of the one cover.

  As a specific embodiment of the booklet, a first middle paper group consisting of a plurality of middle sheets and a second middle paper group consisting of a plurality of middle sheets are arranged adjacently in the vertical direction between the covers. Things.

  Since the present invention is configured as described above, it is possible to provide a fastener that can fasten a middle sheet of various thicknesses with a relatively simple structure, and a booklet including the fastener. .

The external view which shows the state which the booklet concerning one Embodiment of this invention opened. The top view which shows the state which the booklet of the embodiment opened. The top view which shows the state which opened the front cover of the booklet of the embodiment. The external view which shows the closed state of the booklet of the embodiment. The external view which shows the closed state of the booklet of the embodiment. Operation | movement explanatory drawing of the fastener of the embodiment. AA line sectional view of Drawing 6. Operation | movement explanatory drawing of the fastener of the embodiment. BB sectional drawing of FIG. The expanded view which shows the fastener formation member of the embodiment. FIG. 6 is a view corresponding to FIG. 6 of a fastener according to a comparative example of the present invention. FIG. 6 is a view corresponding to FIG. 6 of a fastener according to another comparative example of the present invention. FIG. 4 is a view corresponding to FIG. 4 showing a closed state of a booklet provided with the fastener of the comparative example. The front view which shows the closed state of the booklet provided with the fastener of the comparative example.

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

  The booklet 1 of the present embodiment is used as, for example, a diary that can write a schedule, a diary, and the like on the inner paper 5.

  As shown in FIGS. 1 to 9, the booklet 1 is formed by binding a plurality of intermediate sheets 5 between a cardboard front cover 3 and a cardboard back cover 4. Pages are formed on both sides of the paper 5, respectively. In this booklet 1, a first middle paper group 51 composed of a plurality of middle papers 5 and a second middle paper group 52 composed of a plurality of middle papers 5 are arranged adjacently in the vertical direction between the covers 3 and 4. Thus, the first middle paper group 51 and the second middle paper group 52 can be opened and closed independently of each other. The first intermediate paper group 51 and the second intermediate paper group 52 of the present embodiment have different sizes. Specifically, the vertical width dimension of the first middle paper group 51 is set smaller than the vertical width dimension of the second middle paper group 52. The first middle paper group 51 is obtained by printing a monthly schedule field on each middle paper 5, and the second middle paper group 52 is obtained by printing a weekly schedule field on each middle paper 5. Note that the monthly schedule column and weekly schedule column are not shown.

  As shown in FIGS. 1 to 9, a fastener 2 is attached to one cover 3 of the booklet 1. Specifically, the fastener 2 is provided on the inner surface 31 of the front cover 3 that is one of the front covers. In the present embodiment, the fastener 2 is provided at one location of the upper end 11 on the anti-binding source 10 side. ing. The fastener 2 is provided at a position where a retaining gap 6 is formed between the outer cover 33 and the outer cover 33.

  As shown in FIGS. 1 to 9, the fastener 2 is used for a booklet 1 in which a plurality of intermediate sheets 5 are arranged between cover sheets 3 and 4, and a part of the intermediate sheet 5 is attached to the cover sheet 3. It is held so that it can be inserted and removed while in contact. The fastener 2 includes a substrate 7 that is fixed to the inner surface 31 of the front cover 3, and an intermediate paper holder 8 that is provided integrally with the substrate 7 and is movable with respect to the substrate 7. The substrate 7 and the intermediate paper holder 8 are integrally formed of a single synthetic resin sheet material, and for example, the vertical width dimension is set to about 3 cm and the horizontal width dimension is set to about 2 cm. .

  As shown in FIGS. 2, 3, and 6 to 9, the substrate 7 is a portion that is fixed to the booklet 1 so as not to move, and has a substantially U-shape in plan view. Specifically, the substrate 7 includes a pair of attachment portions 71 and 72 bonded to the front cover 3 using the double-sided tape 20 and a bridge portion 73 disposed between the attachment portions 71 and 72. ing. The bridge portion 73 has no double-sided tape attached, and the intermediate paper holder between the lower surface side of the bridge portion 73 and the upper surface side of the cover cover 3 with the substrate 7 attached to the cover cover 3. A space 74 into which a part of 8 can be inserted is formed. The corner portions 70 of the substrate 7 have curved shapes in order to minimize the catching of the inner paper 5 as much as possible. 6 to 9, the substrate 7 is shown with a pattern, and in FIGS. 6 and 8, the double-sided tape 20 disposed between the front cover 3 and the substrate 7 is indicated by a two-dot chain line. ing.

  As shown in FIGS. 1 to 9, the intermediate paper holder 8 is a portion that can slide with respect to the booklet 1 and the substrate 7, and has one end 81 integrally connected to the substrate 7, and the other end side. 82 is engaged with the substrate 7 so as to be movable within a certain range. Specifically, the intermediate paper holder 8 is provided continuously to a holder main body 83 that sandwiches the intermediate paper 5 between the intermediate board 5 and one end 831 of the holder main body 83. The first gusset portion 84 that is integrally held, the second gusset portion 85 that is provided continuously to the other end 832 of the holder body 83, and the tip 851 of the second gusset portion 85 are continuous. And an engaging portion 86 that is slidably engaged with the substrate 7.

  As shown in FIGS. 1 to 3 and FIGS. 6 to 9, the holding body 83 has a substantially trapezoidal shape in plan view, and a first gusset portion 84 and a second gusset portion 85 are provided at both ends. It is integrally formed. The holder body 83 has the first gusset portion 84 and the second gusset portion 85 raised in the thickness direction of the booklet 1 and folded so that the thickness direction of the booklet 1 ( 2, 3, 6, and 8 and the vertical direction in FIGS. 7 and 9, and the booklet 1 is slid in the vertical direction. The front end corner portion 833 of the holder body 83 has a curved shape in order to reduce the catch of the intermediate paper 5 as much as possible.

  As shown in FIGS. 4, 5, and 8, the first gusset portion 84 has a substantially rectangular shape in plan view when the holder body 83 is folded. The first gusset portion 84 has a short side length dimension set to about 3 mm, and has a thickness dimension corresponding to the short side length dimension when the holder body 83 is raised. The intermediate paper 5 can be inserted into the fastener 2.

  As shown in FIGS. 4, 5, and 7 to 9, the second gusset portion 85 has a substantially rectangular shape in plan view when the holder body 83 is folded. In the second gusset portion 85, the length dimension of the long side, that is, the width dimension is set smaller than the width dimension of the other end 832 of the adjacent holding body main body 83 and the base end 860 of the engaging portion 86. . Therefore, the intermediate paper holder 8 has a constricted shape in the second gusset portion 85. The second gusset portion 85 has a short side length dimension set to about 3 mm, and has a thickness dimension corresponding to the short side length dimension when the holder body 83 is raised. The intermediate paper 5 can be inserted into the fastener 2.

  As shown in FIGS. 3 and 6 to 9, the engaging portion 86 has a substantially T shape in plan view, and an engaging portion main body 861 that sinks into the lower surface side of the bridge portion 73 of the substrate 7; A retaining portion 863 that is provided on the distal end side of the engaging portion main body 861 and has a larger width than the engaging portion main body 861 is provided. The base end corner portion 862 of the engaging portion main body 86 has a curved shape in order to reduce the catch of the inner paper 5 as much as possible. A corner portion 864 that forms a pair on the front end side of the retaining portion 863 has a curved shape in order to reduce the catch of the intermediate paper 5 as much as possible.

  The fastener 2 is formed by a fastener forming member 9 as shown in FIG. The fastener forming member 9 is made by punching a synthetic resin sheet material, and includes a substrate forming portion 91 corresponding to the substrate 7 and a holding body corresponding to the intermediate paper holding body 8. And a forming portion 92. That is, the substrate forming part 91 and the holding body forming part 92 are integrally formed.

  With the fastener forming member 9 in a state where the double-sided tape 20 is attached to one surface of the substrate forming portion 91, the first gusset portion 84 comes to the upper edge 32 side of the cover cover 3, and the cover cover 3 Adhere to the corner of the anti-binding source 10 side. More specifically, the fastener forming member 9 causes the upper edge portion of the substrate forming portion 91 to be along the upper edge 32 of the cover cover 3, and the side edge portion of the substrate forming portion 91 is outside the cover cover 3. It arrange | positions so that the said outer edge 33 may be followed in the position which refrained from the edge 33. FIG. Thereafter, the front end side of the holding body forming portion 92 is inserted through the space 74 between the substrate 7 and the cover 3 formed by the substrate forming portion 91, and the engaging portion 86 is placed on the opposite side of the bridge portion 73. By making it protrude, the fastener 2 as shown in FIGS. 1-9 is made.

  As described above, the fastener 2 according to this embodiment is used for the booklet 1 in which a plurality of intermediate sheets 5 are arranged between the cover sheets 3 and 4, and a part of the intermediate sheet 5 is used as one cover sheet 3. The board 7 is fixed to the inner surface 31 of the one cover 3 and is provided integrally with the board 7 and is movable with respect to the board 7. And an intermediate paper holder 8.

  Therefore, a desired page of the booklet 1 can be held in an open state, or when the booklet 1 is opened from the closed state next time, the desired page can be opened immediately and used instead of a bookmark. . Since the intermediate paper holder 8 that holds the intermediate paper 5 can be slid with respect to the substrate 7 in accordance with the thickness dimension due to the difference in the number of intermediate papers 5 and the like, FIGS. As shown in FIG. 5, even when there are a relatively large number of intermediate papers 5 to be held, and as shown in FIGS. 5 corners can be held. 4 shows a state in which the intermediate paper 5 having the same thickness as the gusset portions 84 and 85 is fastened to the fastener 2, and FIG. 5 shows the gusset portions 84 and 85 of the fastener 2. A state in which the middle paper 5 having a thickness smaller than the thickness is fastened is shown.

  In particular, in this embodiment, since the mechanism for moving the intermediate paper holder 8 relative to the substrate 7 has a relatively simple structure, the mounting operation is relatively simple and after the mounting. Is very easy to handle.

  Further, since the inner paper holder 8 has one end 81 integrally connected to the substrate 7 and the other end 82 is engaged with the substrate 7 so as to be movable within a certain range. There is no risk of losing the intermediate paper holder 8 that is not directly attached. Further, since the intermediate paper holder 8 is movable in the direction of opening the page, the fastener 2 is deformed in the direction in which the thickness dimension increases with the operation of inserting the intermediate paper 5 into the fastener 2. be able to. Further, the retaining portion 863 of the engaging portion 86 abuts on the bridge portion 73 of the substrate 7 so that it functions as a stopper so that the engaging state is not released by moving more than a certain amount. .

  The intermediate paper holder 8 is provided continuously with a holder main body 83 that holds the intermediate paper 5 between the intermediate paper 5 and the one end 831 of the holder main body 83, and is integrally held by the substrate 7. The first gusset portion 84, the second gusset portion 85 provided continuously to the other end 832 of the holding body main body 83, and the substrate provided continuously to the tip 851 of the second gusset portion 85. 7 so that the first gusset portion 84 and the second gusset portion 85 are substantially perpendicular to the substrate 7 (with the substrate 7). The first gusset portion 84 and the second gusset portion 85 are raised relative to the substrate 7 so that the angle between the first gusset portion 84 and the second gusset portion 85 is approximately 90 degrees. So that the angle between the substrate 7 and the first gusset portion 84 and the second gusset portion 85 is substantially 0 degree or Even when the sheet is folded (to 180 degrees) and the number of sheets 5 as shown in FIGS. 4, 6 and 7 is large, the sheet 5 as shown in FIGS. Even when the number of cards is small, it can be flexibly handled.

  If the intermediate paper 5 has a thickness corresponding to the rising dimension of the first gusset portion 84 and the second gusset portion 85, the intermediate paper 5 is attached to the fastener 2 as shown in FIGS. When the booklet 1 is closed while being held, the booklet 1 is not curved in the thickness direction. Therefore, the booklet 1 can be made compact.

  That is, this embodiment is compared with the conventional fasteners A2 and B2, more specifically, the intermediate paper holders A8 and B8 exemplified in FIGS. 11 and 12 are fixed to the substrates A7 and B7. The form of the fastener 2 can not only improve the appearance when the booklet 1 is opened, but also can improve the appearance when the booklet 1 is folded.

  More specifically, the fastener A2 as shown in FIG. 11 is formed of a sheet-like synthetic resin sheet material, and for example, a corner portion of a sheet having a thickness of a photo can be inserted and removed. It is to hold. The fastener A2 includes a substrate A7 and an intermediate paper holder A8 that is immovable relative to the substrate A7. The substrate A7 and the intermediate paper holder A8 located at the upper edge A32 and the outer edge A33 of the booklet A1. The gusset part is not formed in the connection part.

  Such a fastener A2 can not only hold the inner paper when the booklet A1 is opened when the number of inner papers to be fastened is relatively large, but even when the number of intermediate papers that can be held is fastened. Will be greatly curved, detracting from aesthetics. On the other hand, even when the booklet A1 is closed by fastening the middle paper to the fastener A2, the cover A3 and the middle paper are greatly curved, the booklet A1 is not compact, and the aesthetic appearance is impaired.

  Further, the fastener B2 provided with the gusset portions B84 and B85, specifically, the fastener B2 as shown in FIG. 12 is formed of a sheet-like synthetic resin sheet material as in FIG. For example, the corner portion of the paper having a thickness larger than that of the fastener A2 shown in FIG. 11 is detachably held. The fastener B2 includes a substrate B7 and an intermediate paper holder B8 that cannot move with respect to the substrate B7. The substrate B7 and the intermediate paper holder B8 that are located at the upper edge B32 and the outer edge B33 of the booklet B1 are provided. The gusset portions B84 and B85 are respectively formed at the connecting portions.

  Such a fastener B2 is not only able to hold the inner paper with the booklet B1 opened when the number of inner papers to be fastened is relatively large, but even when the number of intermediate papers that can be held is fastened. Will be greatly curved, detracting from aesthetics. On the other hand, even when the booklet B1 is closed by fastening the middle paper to the fastener B2, the cover B3 and the middle paper are greatly curved as shown in FIGS. 13 and 14, and the booklet B1 is not compact and has a beautiful appearance. Hurt.

  In the case shown in FIG. 12, since the gusset portions B84 and B85 are raised in the thickness direction of the booklet B1, the state where the inner paper is not fastened to the fastener B2 or the gusset portion B84 to the fastener B2. When the booklet B1 is closed in a state where the middle sheet of the thickness dimension smaller than the thickness dimension of B85 is fastened, the portion provided with the fastener B2 protrudes in the thickness direction by the thickness dimension of the gusset portions B84 and B85. There is.

  However, according to the fastener 2 of the present embodiment, since the intermediate paper holder 8 is movable with respect to the substrate 7, even when the number of intermediate papers 5 to be fastened is relatively small, it is relatively large. Even in such a case, the distance in the thickness direction between the substrate 7 and the intermediate paper holder 8 can be appropriately adjusted by moving the intermediate paper holder 8 relative to the substrate 7. Therefore, as shown in FIGS. 1 and 2, the inner paper 5 can be firmly held with the booklet 1 opened, and on the other hand, even when the booklet 1 is closed, as shown in FIGS. 4 and 5, the cover 3 In addition, the intermediate paper 5 can be appropriately held without being greatly curved.

  Furthermore, since the fastener 2 of the present embodiment includes the first gusset portion 84 and the second gusset portion 85 that can freely change the angle formed with respect to the substrate 7, the substrate 7 and the middle paper It is relatively easy to adjust the distance from the holder 8 in the thickness direction. In addition, when the booklet 1 is closed in a state where the inner paper 5 is not fastened to the fastener 2, the entire booklet 1 can be made compact because the inner paper holder 8 can be moved to a position where it contacts the substrate 7. I can keep it.

  Further, since the substrate 7 and the inner paper holder 8 are integrally formed of a single synthetic resin sheet material, it becomes an obstacle when the booklet 1 is closed due to the thickness of the fastener 2. The problem does not occur. In particular, in the present embodiment, when the substrate forming part 91 and the holding body forming part 92 are made by punching a sheet material, linear folding lines 93, 94, 95, and 96 are formed. Yes. That is, the assembled fastener 2 includes the mounting portion 72 of the substrate 7 and the first gusset portion 84 of the intermediate paper holder 8, the first gusset portion 84 and the holder main body 83 of the intermediate paper holder 8, Between the holding body main body 83 and the second gusset portion 85 of the intermediate paper holding body 8, and between the second gusset portion 85 and the engaging portion 86 of the intermediate paper holding body 8, the folding lines 93, 94, 95, 96 are provided. A crease corresponding to is formed. In FIG. 10, the fold lines 93, 94, 95, and 96 are indicated by alternate long and short dashed lines, and in FIGS. 3 and 8, the fold lines are indicated by alternate long and short dashed lines.

  Furthermore, since the booklet 1 of the present embodiment is provided with the fastener 2 on at least one cover, in particular, the inner surface 31 of the cover 3, the inner cover 5 is held so as to follow the cover 3 side. be able to. In particular, when the booklet 1 is a diary as in the present embodiment, it is possible to hold the intermediate paper 5 on which the monthly schedule column that has been used is printed.

  Further, since the fastener 2 is provided at a position where the holding gap 6 is formed between the outer edge 33 of the one cover, even when the intermediate paper holder 8 slides, The intermediate paper holder 8 does not protrude outward from the outer edge 33 of the booklet 1. Therefore, not only can the aesthetics be improved with the booklet 1 closed, but also problems such as a hand hooking on the fastener 2 from the outside of the booklet 1 can be suppressed.

  Further, the booklet 1 of the present embodiment has a first middle paper group 51 composed of a plurality of middle papers 5 and a second middle paper group 52 composed of a plurality of middle papers 5 vertically adjacent to each other. Since they are arranged, only the first middle paper group 51 can be held on a predetermined page by the fastener 2 and the second middle paper group 52 can be turned freely.

  The booklet 1 according to the present embodiment includes a first middle paper group 51 made up of a plurality of middle papers 5 and a second middle paper group 52 made up of a plurality of middle papers 5 arranged adjacent to each other between the covers. Since the first intermediate paper group 51 and the second intermediate paper group 52 can be opened and closed independently of each other, one intermediate paper group 51 is fixed and the other intermediate paper group 51 The first middle paper group 51 and the second middle paper group 52 can be freely referred to, such as turning the page 52 freely. In other words, conventionally, in the case of the booklet 1 such as a diary, the page of the middle paper 5 on which the monthly schedule field is printed and the page of the middle paper 5 on which the weekly schedule field is printed are bound to predetermined portions. There are many. Therefore, there was a problem that the degree of freedom for referring to the monthly schedule column and the weekly schedule column was low. However, the above can be easily referred to each other.

  In particular, in the present embodiment, the first middle paper group 51 is obtained by printing a monthly schedule field on each middle paper 5, and the second middle paper group 52 is printed by a weekly schedule field on each middle paper 5. Therefore, the intermediate sheet 5 provided with a monthly schedule column in which page turning is relatively not performed can be held on a predetermined page using the fastener 2 and the page turning is relatively frequent. By leaving the middle sheet 5 provided with the weekly schedule column to be performed freely, the upper monthly schedule column and the lower monthly schedule column can be easily referred to each other.

  The present invention is not limited to the embodiment described above.

  The booklet of the present invention may be a diary, a notebook, a book, or the like.

  Further, the material of the cover and the inner paper constituting the booklet may be any material as long as it is in a sheet form, and can be variously changed in addition to paper.

  Furthermore, the cover is not limited to being bound together with the inner sheet. For example, when a cover is provided on the outer side of the cover of a diary or a book, this cover can be regarded as the cover of the present invention. That is, a fastener is attached to the inner surface of the cover, used for a booklet in which a plurality of intermediate sheets are arranged between covers including the cover, and a part of the intermediate sheet is attached to one cover It may be a fastener that can be inserted and removed.

  The booklet of the present invention is not limited to the above-described inner paper divided in the vertical direction, and may be provided with an inner paper having the same or almost the same size as the cover. Further, in addition to the first middle paper group consisting of a plurality of middle sheets and the second middle paper group consisting of a plurality of middle sheets arranged vertically adjacent to each other, A third middle paper group made of middle paper is arranged adjacent to the second middle paper group, and a fourth middle paper group made up of a plurality of middle papers is further provided. It may be arranged adjacent to the third middle paper group.

  Further, if the booklet turns pages in the vertical direction like a report sheet, the first medium sheet group and the second medium sheet group may be arranged adjacent to each other on the left and right.

  The sizes of the first middle paper group and the second middle paper group may be different from each other, or may be the same. In particular, as in the present embodiment, if the vertical width dimension of the first middle paper group is smaller than the vertical width dimension of the second middle paper group, the second middle paper group having a relatively large amount of writing is used. A large writing space can be set.

  In this embodiment, the monthly schedule field is printed on the first middle paper group and the weekly schedule field is printed on the second middle paper group, but the annual schedule field is printed on the first middle paper group. A monthly schedule field printed on the second middle paper group, a weekly schedule field printed on the first middle paper group, and a daily schedule field printed on the second middle paper group, first A monthly schedule column or a weekly schedule column may be printed on the middle paper group, and a memo field may be provided on the second middle paper group.

  In addition, each schedule column is not limited to one printed on both sides of the spread, but may be one in which a schedule column is provided on one page of the spread and a memo column is provided on the other page. In addition, various schedule columns such as a horizontal type in which each column extends in the horizontal direction, a vertical type in which each column extends in the vertical direction, and a block type in which each column forms a block shape can be applied.

  In the above-described embodiment, the fastener is attached only to the front cover of the booklet. However, the fastener may be provided only on the back cover of the booklet or on both sides of the front cover and the back cover. Furthermore, the attachment position of the fastener is not limited to the illustrated one. That is, the attachment position of the fastener may be any part as long as it corresponds to the location where the corner of the inner sheet is located. For example, the lower end of the anti-binding source side or the anti-binding original side It may be an intermediate part. Moreover, you may equip several places of one cover with a fastener.

  In the above-described embodiment, the fastener is provided at a position where a holding clearance is formed between the outer edge of one cover. A reserve gap may be formed between the edges.

  The attachment method of the fastener to the cover is not limited to the double-sided tape, and may be attached by welding depending on the material of the cover and the fastener, in addition to attachment using another adhesive.

  The fasteners are not limited to those made of synthetic resin, but can be made of paper, metal, or other various modifications. A thin sheet made of synthetic resin is relatively lightweight and can withstand repeated insertion and removal of the middle paper.

  Also, the size of the fastener can be variously changed such as larger or smaller than those described above.

  In addition, you may change variously in the range which does not impair the meaning of this invention.

DESCRIPTION OF SYMBOLS 1 ... Booklet 2 ... Fastener 3, 4 ... Cover 31 ... Inner surface 33 ... Outer edge 5 ... Middle paper 51 ... First middle paper group 52 ... Second middle paper group 6 ... Reservation gap 7 ... Substrate 8 ... Middle paper Holding body 81 ... one end 82 ... the other end 83 ... holding body main body 831 ... one end 832 ... the other end 84 ... first gusset part 85 ... second gusset part 851 ... tip 86 ... engagement part

Claims (7)

It is used for a booklet in which a plurality of intermediate sheets are arranged between cover sheets, and is a fastener that holds a part of the intermediate sheet so as to be detachable in a state of being attached to one cover sheet,
A fastener comprising: a substrate fixed to an inner surface of the one front cover; and an intermediate paper holder provided integrally with the substrate and movable with respect to the substrate. 2. The fastener according to claim 1, wherein the intermediate paper holder has one end integrally connected to the substrate and the other end is movably engaged with the substrate within a certain range. A holding body that sandwiches the intermediate paper with the substrate; a first gusset that is provided continuously at one end of the holding body and is held integrally with the substrate; A second gusset portion continuously provided at the other end of the holder body; and an engagement portion provided continuously at the tip of the second gusset portion and slidably engaged with the substrate. The fastener according to claim 1 or 2, wherein The fastener according to claim 1, 2, or 3, wherein the substrate and the intermediate paper holder are integrally formed of a single synthetic resin sheet material. A booklet comprising the fastener according to claim 1, 2, 3, or 4 provided on an inner surface of at least one cover. The booklet according to claim 5, wherein the fastener is provided at a position where a holding clearance is formed between the outer edge of the one cover. The booklet according to claim 5 or 6, wherein a first middle paper group composed of a plurality of middle paper sheets and a second middle paper group composed of a plurality of middle paper sheets are disposed adjacently in the vertical direction between the cover sheets.

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