CN116265264A - File holder - Google Patents

Abstract

The utility model provides a folder which is excellent in portability in an unfolded posture and can properly hold sheets such as paper between a cover body and a sheet body. The folder is provided with: a cover body (A) having a front cover (1) and a back cover (2) connected via a first bending portion (M) and configured to be capable of taking an unfolding posture (T) in which the front cover (1) and the back cover (2) are unfolded so as to be substantially coplanar and a folding posture (F) in which the inner surfaces of the cover body (1) and the back cover (2) face each other; and a holder (J) as a sheet body, which is fixed to the cover body (A) and is configured to be capable of performing an unfolding operation with respect to the cover body (A) via the second bending portion (U) only when the cover body (A) is in an unfolded posture (T), and the first bending portion (M) is configured to be capable of protruding outward when the cover body (A) is in the unfolded posture (T).

Description

File holder

Technical Field

The present utility model relates to folders.

Background

Conventionally, various folders configured to be capable of taking an open posture and a closed posture have been known (for example, refer to patent document 1).

In this folder, the entire outer surface side of the cover is substantially flat in the unfolded posture.

However, in the folder having such a structure, the fingers of the user are not easily caught on the outer surface side of the cover in the unfolded posture, and thus there is a problem in that the ease of operation (use) in the unfolded posture is poor.

In addition, for portability, it is desirable that the folder has a structure capable of holding sheets such as paper appropriately.

Prior art literature

Patent literature

Patent document 1: japanese patent application registration No. 3227354

Disclosure of Invention

Problems to be solved by the utility model

The present utility model has been made in view of the above circumstances, and an object thereof is to provide a folder that is excellent in portability (ease of holding) at least in an unfolded posture and that can properly hold sheets such as paper between a cover body and a sheet body.

Means for solving the problems

That is, the present utility model is constituted as follows.

The utility model described in claim 1 is a folder comprising: a cover body having a front cover and a back cover connected via a first fold portion, the cover body being configured to be capable of assuming an unfolded position in which the front cover and the back cover are unfolded so as to be substantially coplanar and a closed position in which inner surfaces of the front cover and the back cover face each other; and a sheet body fixed to the cover body and configured to be capable of performing an unfolding operation with respect to the cover body via a second fold portion only when the folded-out posture is assumed, the first fold portion being capable of assuming a state protruding outward when the folded-out posture is assumed.

The utility model according to claim 1 provides the folder according to claim 2, wherein the cover body includes: a first support sheet that is provided continuously with the front cover via a first bending portion; and a second support piece that is provided continuously with the back cover via a second bending portion, and the sheet body is fixed to the first and second support pieces.

According to the utility model recited in claim 2, in the utility model recited in claim 3, a notch is formed between the first bending portion and the second bending portion.

In the utility model recited in claim 4, in the folder recited in claim 1, 2 or 3, the second bending portion extends in a direction intersecting the first bending portion.

The utility model according to claim 1, 2 or 3 provides the utility model according to claim 5, wherein the first bending portion includes: a pair of outer folding lines formed at boundary portions of the first folding portion and the front and back covers; and a pair of inner folding lines formed inside the pair of outer folding lines in parallel with the pair of outer folding lines, wherein in the unfolded posture, a portion between the outer folding lines and the inner folding lines can take a posture of being raised with respect to the front cover and the back cover.

In the utility model recited in claim 6, the document holder according to claim 2 or 3 is characterized in that the sheet body is welded to the first support piece and the second support piece, respectively, and the document holder is configured such that the base end edge of the front cover and the base end edge of the back cover do not separate from each other when the document holder is shifted from the closed position to the open position.

In the utility model according to claim 2, 3 or 6, in the utility model according to claim 7, the bound material is supported by the first support piece and the second support piece via binding members.

Effects of the utility model

As described above, according to the present utility model, it is possible to provide a folder that is excellent in portability in at least an unfolded posture and that can properly hold sheets such as paper between a cover body and a sheet body.

Drawings

Fig. 1 is a front view showing a folded posture (closed posture) of an embodiment of the present utility model.

Fig. 2 is a front view of the deployment posture in this embodiment (a view of the state in which the holder is in the deployment position).

Fig. 3 is a front view of this embodiment (a view of a state in which the holder is located at the covering position).

Fig. 4 is an exploded perspective view of this embodiment.

Fig. 5 is a partially enlarged perspective view of this embodiment.

Fig. 6 is a schematic cross-sectional view taken along line X-X in fig. 2.

Fig. 7 is a schematic cross-sectional view taken along line Y-Y in fig. 2.

Fig. 8 is a schematic cross-sectional view taken along line Z-Z in fig. 3.

Fig. 9 is a schematic cross-sectional view corresponding to fig. 8 for explaining a state in which the holder in this embodiment is located at the outer position.

Fig. 10 is a front view for explaining the structure of the cover body in this embodiment.

Fig. 11 is a front view for explaining the structure of the transparent pocket (bound body) in this embodiment.

Fig. 12 is a front view for explaining the structure of the holder (cover, sheet) in this embodiment.

Fig. 13 is a schematic cross-sectional view taken along line W-W in fig. 1.

Fig. 14 is an enlarged view of the central portion in the up-down direction in fig. 6.

Fig. 15 is a front view showing a holder (cover, sheet) according to another embodiment.

Description of the reference numerals

A … cover body

1 … front cover

2 … back cover

J … holder (lamellar body)

M … first bending part

U … second bent portion

(T) … deployment posture

(F) … folding posture (closed posture)

Detailed Description

An embodiment of the present utility model will be described below with reference to fig. 1 to 13. In the figure, a welded portion (welded portion) is denoted by reference numeral y.

The present utility model is applied to a folder configured to be able to take an expanded posture (T) and a folded posture (F) which is a folded posture after folding from the state of the expanded posture (T).

The file is provided with: a cover body a having a front cover 1 and a back cover 2 connected via a first fold portion M; a transparent pocket E as a bound body, the transparent pocket E being provided on the inner surface side of the cover body A; and a holder J as a cover body or sheet body, the holder J being disposed so as to span between the front cover 1 and the back cover 2, and being fixed to the cover body a so as to cover substantially the entire transparent pocket E.

The transparent pocket E supported by the cover body a can accommodate sheets such as documents, not shown, therein. The holder J fixed to the cover body a and capable of covering the transparent pocket E can hold a document between the base sheet 3 and the cover sheet 4.

The folder can arbitrarily select a use form for storing the document in the transparent pocket E, a use form for holding the document in the holder J, and a use form for holding the document between the holder J and the cover body a by a user according to a use frequency, use, and the like of the document.

The file is composed of the following components: the folding device comprises a cover body A having a first folding part M and capable of taking an unfolding posture (T) and a folding posture (F), and a holder J having a second folding part U and capable of taking an unfolding position (S) and a covering position (B), wherein the cover body A and the holder J cooperate to be folded into four folds (folded into two and then folded into two).

The folder is configured to be capable of taking a folded posture (F) in which the front cover 1 and the back cover 2 can be unfolded so that the front cover 1 and the back cover 2 are substantially coplanar, that is, so that the front cover 1 and the back cover 2 are positioned on substantially the same virtual plane, and a folded posture (T) in which the inner surfaces of the front cover 1 and the back cover 2 face each other. The first folded portion M of the cover body a can be configured to protrude outward in the unfolded posture (T).

The folder is configured to be capable of integrally folding the cover body a, the transparent pocket E, and the holder J in half so as to be able to take a folded posture (F).

Hereinafter, each structure of the folder will be described in detail.

< cover body A >)

The cover body A comprises: the front cover 1 and the back cover 2 connected via the first bending portion M, the first binding sheet C as a first support sheet provided continuously with the front cover 1 via the first bending portion C2, and the second binding sheet D as a second support sheet provided continuously with the back cover 2 via the second bending portion D2.

The cover body a is configured to be capable of taking a folded posture (F) in which the front cover 1 and the back cover 2 can be unfolded so as to be positioned on substantially the same virtual plane, and in which the inner surfaces of the front cover 1 and the back cover 2 can face each other with the transparent pocket E and the holder J interposed therebetween.

Front cover 1

The front cover 1 has a substantially rectangular cross-section that forms the upper half of the folded-out position (T). The front cover 1 is of substantially the same size as the back cover 2. A recess 11 is provided at the right edge of the front cover 1, which engages with the strapping rubber band Q attached to the back cover 2 in the folded posture (F).

[ Back cover 2]

The back cover 2 has a substantially rectangular cross-section that forms the lower half in the unfolded position (T). The back cover 2 is of substantially the same size as the front cover 1. A rubber tape Q for binding the front cover 1 and the back cover 2 in the folded posture (F) is attached to the back cover 2. A recess 21 that engages with the rubber tape Q in the folded posture (F) is provided at the right side edge of the back cover 2.

[ first bending portion M ]

The first bending part M is interposed between the front cover 1 and the back cover 2. The first fold M connects the front cover 1 with the back cover 2. In the present embodiment, the front cover 1 and the back cover 2 are connected only by the first fold M. The first bending portion M constitutes a hinge portion as a whole. The first bending portion M can also function as a seal ridge.

The first bending portion M includes: an upper and lower pair of outer folding lines M1 formed at the boundary portion between the first folding portion M and the front and rear covers 1 and 2 and extending in the left-right direction, and a pair of inner folding lines M2 formed inside the pair of outer folding lines M1 and extending in the left-right direction and substantially parallel to the outer folding lines M1.

That is, the first bending portion M includes a central plate-like portion M3 provided between the pair of upper and lower inner folding lines M2, and upper and lower plate-like portions M4 and M5 provided above and below the central plate-like portion M3 and between the outer folding line M1 and the inner folding line M2, respectively.

The first bending portion M is configured such that, in the unfolded posture (T), the upper plate-like portion M4 and the lower plate-like portion M5, which are portions between the outer fold line M1 and the inner fold line M2, can take a posture of standing in a direction substantially orthogonal to the front cover 1 and the back cover 2. In addition, the first bending portion M is configured such that, in the unfolded posture (T), the central plate-like portion M3, which is a portion between the pair of inner folding lines M2, can take a posture of extending in a direction intersecting the upper plate-like portion M4 and the lower plate-like portion M5.

In other words, the first folded portion M of the cover body a in the unfolded posture (T) is substantially in the shape of a letter コ in side view, and protrudes toward the outer surface side than the front cover 1 and the back cover 2.

[ first binding sheet C ]

The first binding sheet C is integrally extended from the left side edge of the front cover 1 as the binding root side edge. The first binding sheet C extends from a portion of the left end edge of the front cover 1 in the unfolded position (T) except for the lower portion. That is, the first binding sheet C is provided to protrude from a part of the left side edge of the front cover 1.

The first binding sheet C has a longitudinal strip shape. The first binding sheet C includes: a first binding sheet main body c1, the first binding sheet main body c1 being provided with a pair of upper and lower binding leg insertion holes c11 through which the first binding legs G are inserted; and a first bending portion c2, wherein the first bending portion c2 is a bendable portion provided at one side edge of the first binding sheet main body c1 and connecting the first binding sheet main body c1 and the front cover 1.

The first binding sheet C is configured to be capable of folding back the first binding sheet main body C1 toward the inner surface side of the front cover 1. The first binding sheet main body c1 is provided continuously with the front cover 1 via the first bending portion c2, and a portion other than the first bending portion c2 is not restrained with respect to the front cover 1.

The first binding sheet C is bent by the first bending portion C2, and the first binding sheet main body C1 is set to a basic posture in which it is folded back toward the inner surface side of the front cover 1. The upper and lower drop-off preventing portions G2 supported by the first binding legs G of the first binding sheet C in the basic posture are located between the first binding sheet main body C1 and the inner surface of the front cover 1.

The cover body a can temporarily hold a document by sandwiching the document between the front cover 1 and the first binding sheet C.

The first binding sheet main body c1 includes: a welded surface c12, wherein the welded surface c12 faces the transparent pocket E side and is welded by the first extending portion t1 of the retainer J; and a cover facing surface c13, the cover facing surface c13 facing the inner surface side of the front cover 1.

The first bending portion c2 includes a folding line c21 extending in the up-down direction and provided in pairs left and right. The first bending portion c2 extends in a direction intersecting the first bending portion M.

Second binding sheet D

The second binding sheet D is integrally extended from the left side edge of the back cover 2 as the binding root side edge. The second binding sheet D extends from a portion of the left end edge of the back cover 2 in the unfolded position (T) except for the upper portion. That is, the second binding sheet D protrudes from a part of the left side edge of the back cover 2.

The second binding sheet D has a longitudinal strip shape. The second binding sheet D includes: a second binding sheet main body d1, the second binding sheet main body d1 being provided with a pair of upper and lower binding leg insertion holes d11 through which the second binding legs H are inserted; and a second bending portion d2, wherein the second bending portion d2 is a bendable portion provided at one side edge of the second binding sheet main body d1 and connecting the second binding sheet main body d1 and the back cover 2.

The second binding sheet D is configured to be capable of folding back the second binding sheet main body D1 toward the inner surface side of the back cover 2. The second binding sheet main body d1 is provided continuously with the back cover 2 via the second bending portion d2, and a portion other than the second bending portion d2 is not restrained with respect to the back cover 2.

The second binding sheet D is bent by the second bending portion D2, and the second binding sheet main body D1 is set to a basic posture in which it is folded back toward the inner surface side of the back cover 2. The upper and lower drop-off preventing portions H2 supported by the second binding legs H of the second binding sheet D in the basic posture are located between the second binding sheet main body D1 and the inner surface of the back cover 2.

The cover body a can temporarily hold a document by sandwiching the document between the back cover 2 and the second binding sheet D.

The second binding sheet main body d1 includes: a welded surface d12, wherein the welded surface d12 faces the transparent pocket E side and is welded by the second extension part t2 in the retainer J; and a cover facing surface d13, the cover facing surface d13 facing the inner surface side of the back cover 2.

The second bending portion d2 includes a fold line d21 extending in the up-down direction and provided in pairs in the left-right direction. The second bending portion d2 extends in a direction intersecting the first bending portion M.

[ relation with respect to separation of the first binding sheet C and the second binding sheet D ]

The first binding sheet C is provided continuously with only the front cover 1. On the other hand, the second binding sheet D is provided continuously with only the back cover 2. That is, the first binding sheet C and the second binding sheet D are in a relationship not continuously provided to each other, that is, in a relationship in which they are separately provided.

A holder J is provided between the first binding sheet main body c1 and the second binding sheet main body d1 separated from each other so as to span (span) the first folded portion M.

In the cover body a, a notch k1 is formed between a first binding sheet main body C1 and a first bending portion C2 that constitute the first binding sheet C, and a second binding sheet main body D1 and a second bending portion D2 that constitute the second binding sheet D. That is, in the unfolded state, the cover body a having a substantially rectangular shape as a whole is provided with the notch k1 so as to separate the first binding sheet C from the second binding sheet D.

First binding leg G, second binding leg H

The transparent pocket E is bound by the first and second binding legs G, H as binding members supported by the first and second binding sheets C, D.

The first and second binding legs G, H include: binding leg bodies g1, h1, the binding leg bodies g1, h1 extending in the up-down direction and having a strip shape, respectively; and anti-drop portions g2, h2, wherein the anti-drop portions g2, h2 are cover body engaging portions provided at the upper and lower end portions of the binding leg bodies g1, h1, respectively, and having a width set wider than the binding leg bodies g1, h 1.

The staple leg bodies g1, h1 are set to have upper and lower dimensions and width dimensions that can be inserted through the first and second staple leg insertion holes E21, E22 provided in the transparent pocket E.

The drop-off preventing portions g2 and h2 are set to have a width larger than the width of the leg insertion holes c11 and d11 provided in the first and second binding sheets C, D.

The fold line sn is provided on either or both of the vertically provided retaining portions g2 and h 2. Further, by temporarily bending the fold line sn, the drop-off preventing portions g2 and h2 can be inserted into the staple leg insertion holes c11 and d11 formed in the first and second staple sheets C, D and the first and second staple leg insertion holes E21 and E22 provided in the transparent pocket E.

The retaining portions g2 and h2 temporarily bent by the fold line sn return to the original substantially flat posture by elastic deformation of the members, and can be locked to the cover facing surfaces c13 and d13 of the first and second binding sheets C, D to exhibit a predetermined retaining function.

The upper and lower retaining portions G2 of the first binding leg G are disposed between the cover facing surface c13 of the first binding sheet main body c1 and the inner surface of the front cover 1. The upper and lower retaining portions H2 of the second binding leg H are disposed between the cover facing surface d13 of the second binding sheet main body d1 and the inner surface of the back cover 2.

Transparent pocket E >

The transparent pocket E is supported by the first binding sheet C via the first binding leg G and by the second binding sheet D via the second binding leg H. The transparent pocket E is bound by the first and second binding legs G, H provided to the first and second binding sheets C, D.

The transparent pocket E includes: a pocket body e1, wherein the pocket body e1 can accommodate documents through an opening e 11; and a held end e2, wherein the held end e2 is provided along a left end portion which is one end portion of the pocket body e1, and is provided with a first binding leg insertion hole e21 and a second binding leg insertion hole e22 through which the first and second binding legs G, H are inserted. In the present embodiment, the opening e11 is provided in the pocket body e1 so as to extend along the held end e 2.

The transparent pocket E can change its posture in accordance with the posture change of the cover body a. In other words, the transparent pocket E is configured to be folded in half so as to follow the folding of the cover body a and to be folded in the center in the up-down direction after the folding of the cover body a.

The held end e2 extends in the up-down direction and has a band shape. A pair of upper and lower first staple leg insertion holes e21 through which the first staple legs G are inserted are provided in the upper half of the held end e 2. A pair of upper and lower second staple leg insertion holes e22 through which the second staple legs H are inserted are provided in the lower half of the held end portion e 2.

The second binding leg insertion hole E22 has a long hole shape extending in the up-down direction, and is configured such that the lower half of the transparent pocket E can be moved downward relative to the back cover 2 after the cover body a is folded in half.

That is, the transparent pocket E in this embodiment can move relative to the back cover 2 in the up-down direction in accordance with the posture change between the unfolded posture (T) and the folded posture (F) of the cover body a.

< retainer J >)

The holder J has a portion disposed above the cover body a and the plurality of transparent pockets E overlapping each other. In this embodiment, the holder J can cover substantially the entire transparent pocket E from the front side. The holder J is fixed to the first binding sheet C and the second binding sheet D only by welding.

The holder J is configured to be capable of performing an unfolding operation with respect to the cover body a and the transparent pocket E via the first folded portion T12 and the second folded portion T22 constituting the second folded portion U provided in the holder J only when the cover body a assumes the unfolded posture (T).

That is, the holder J is configured to be rotatable about a second bending portion U provided between the extending portions t1 and t2 as the base end portion and the holder body JH so as to be able to take a covering position (B) where the holder body JH as the body portion covers the transparent pocket E, an unfolding position (S) where the holder body JH does not cover the transparent pocket E, and an outer position (P) where the holder body JH is located on the outer surface side of the cover body a.

In the folder in the expanded posture (T), the holder main body JH is located at the uppermost portion (foremost portion) in the folder with the holder main body JH in the covering position (B). That is, the holder main body JH is positioned at the uppermost portion (foremost portion) in the covering position (B), and when the folder takes the open posture (T), the function of covering the plurality of transparent pockets E from the upper side (front side) can be exhibited as a cover substitute.

The holder J is configured to hold a document by itself with ease. The holder J is formed with a storage space sp capable of storing a document between the base sheet 3 and the cover sheet 4. That is, the cover sheet 4 of the holder J can cooperate with the base sheet 3 to form a pocket capable of accommodating a document.

The holder J includes: a base sheet 3, wherein the base sheet 3 is in a continuous sheet shape and is respectively welded with the first binding sheet C and the second binding sheet D in the cover body A; and a cover sheet 4, the cover sheet 4 covering the front surface side of the base sheet 3.

[ substrate 3]

The substrate 3 includes: a substrate body 31, the substrate body 31 having a longitudinal rectangular shape in an unfolded posture (T); a first extending portion t1, the first extending portion t1 extending to an upper portion of a left end portion, which is a binding root portion side of the substrate main body 31; and a second extending portion t2 extending from a lower portion of a left end portion, which is a binding root portion side, of the substrate main body 31.

The substrate 3 is provided with a central bending portion N extending in the left-right direction at a central portion in the up-down direction in the developed posture (T). The central bending portion N includes a straight central folding line N1 extending in the left-right direction, and a straight upper and lower folding line N2 extending in the left-right direction and disposed above and below the central folding line N1.

The central bending portion N is provided at the middle portion in the up-down direction of the substrate main body 31. In the substrate 3, a portion above the central bending portion N in the developed posture (T) is an upper half portion 3a, and a portion below the central bending portion N is a lower half portion 3b.

The substrate main body 31 constitutes a holder main body JH having a storage space sp capable of storing a document in cooperation with the cover sheet 4. The substrate body 31 is provided with a central bending portion N between the upper half 311 and the lower half 312.

A holding piece 313 capable of holding the upper left corner of the cover piece 4 as a free end portion is provided at the upper left corner of the substrate main body 31. The holding piece 313 is a sheet-like member integrally extending from the upper end edge of the substrate main body 31, and is welded to the substrate main body 31 at the left end after being folded back toward the front surface side of the substrate main body 31. The cover sheet 4 is integrally or continuously provided at the right and lower ends of the base sheet body 31 by welding.

A third bending portion V extending in the up-down direction in the unfolded posture (T) is provided at the left side portion of the substrate main body 31. The third bending portion V is disposed substantially parallel to the second bending portion U. The third bending portion V is provided over the entire region in the up-down direction of the substrate main body 31. The third folded portion V is disposed in the middle between the second folded portion U and the left end edge of the cover piece 4. The third bending portion V includes left and right folding lines V1 extending in the vertical direction in parallel with each other and having a straight line shape.

The body end edge 314 formed between the second bent portion U and the third bent portion V can function as a joint when the holder body JH is located at the outer position. That is, when the holder J is at the outer position (P), the body edge 314 can form a certain gap between the cover sheet 4 and the cover body a.

In the present embodiment, when the cover body a is shifted from the folded posture (F) to the unfolded posture (F), one of the outer fold lines m1 as the base end portion of the front cover 1 and the other outer fold line m1 as the base end portion of the back cover are regulated by the substrate main body 31 of the continuous sheet-like substrate 3 so as not to separate from each other.

[ first extension portion t1]

The first extending portion t1 is integrally extended from the left side edge of the base sheet main body 31 as the edge on the binding root side. The first extending portion T1 extends from a portion of the upper half 311 of the substrate main body 31 excluding the lower portion in the extended posture (T). That is, the first extension portion t1 is provided to protrude from a part of the left side edge of the upper half 311 in the substrate main body 31.

The first extension t1 is fixed to the first binding sheet C in the cover body a by welding.

The first extending portion t1 has a vertically long strip shape. The first extension portion t1 includes: a first extension setting part main body t11, wherein the first extension setting part main body t11 has a part welded with the first binding sheet C in the cover body A, and is provided with a pair of upper and lower binding leg passing holes ta through which the first binding legs G can pass; and a first bending portion t12, wherein the first bending portion t12 forms a second bending portion U that is provided at one side edge and connects the first extension portion main body t11 and the upper half 311 of the substrate main body 31.

The first extension portion t1 is configured to be capable of folding back the first extension portion main body t11 toward the inner surface side of the substrate main body 31. The first extension portion main body t11 is provided continuously with the substrate main body 31 via the second bending portion U, and a portion other than the second bending portion U is not restrained with respect to the substrate main body 31.

When the holder J is in the covering position (B), the first extending portion t1 is bent by the second bending portion U, and the first extending portion main body t11 takes a folded-back posture toward the inner surface side of the substrate main body 31.

When the holder J is in the extended position (S), the first extended portion t1 is bent by the second bending portion U, and the first extended portion main body t11 takes a posture outside the substrate main body 31.

The first folded portion t12 includes fold lines t12s extending in the up-down direction and provided in pairs left and right. The first folded portion t12 extends in a direction intersecting the first folded portion M.

Second extension t2

The second extension portion t2 is integrally extended from the left side edge of the base sheet main body 31 as the edge on the binding root side. The second extending portion T2 extends from a portion of the lower half 312 of the substrate main body 31 excluding the upper portion in the extended posture (T). That is, the second extension portion t2 is provided to protrude from a part of the left side edge of the lower half portion 312 in the substrate main body 31.

The second extension t2 is fixed to the second binding sheet D in the cover body a by welding.

The second extending portion t2 has a longitudinal strip shape. The second extension portion t2 includes: a second extension setting part body t21, the second extension setting part body t21 having a portion welded to the second binding sheet D in the cover body a and being provided with a pair of upper and lower binding leg passing holes ta through which the second binding legs H can pass; and a second bending portion t22, wherein the second bending portion t22 forms a second bending portion U that is provided at one side edge and connects the second extension portion main body t21 and the lower half 312 of the substrate main body 31.

The second extension t2 is configured to fold back the second extension body t21 toward the inner surface of the substrate body 31. The second extension portion main body t21 is provided continuously with the substrate main body 31 via the second bending portion U, and a portion other than the second bending portion U is not restrained with respect to the substrate main body 31.

When the holder J is in the covering position (B), the second extending portion t2 is bent by the second bending portion U, and the second extending portion main body t21 takes a folded-back posture toward the inner surface side of the substrate main body 31.

When the holder J is in the extended position (S), the second extended portion t2 is bent by the second bending portion U, and the second extended portion main body t21 takes a posture outside the substrate main body 31.

The second folded portion t22 includes fold lines t22s extending in the up-down direction and provided in pairs left and right. The second folded portion t22 extends in a direction intersecting the first folded portion M.

The first and second extension portions t1 and t2 described in detail above constitute a holder body support portion for supporting a holder body JH composed mainly of the base sheet 31 and the cover sheet 4.

A notch k2 is formed between the first extension portion t1 and the second extension portion t 2. That is, the substrate 3 having a substantially rectangular shape as a whole in the developed state is provided with the notch k2 so as to separate the first extension portion t1 from the second extension portion t 2.

[ cover sheet 4]

The cover sheet 4 and the front of the base sheet 3 overlap each other and have a second bending portion R extending in the left-right direction at an intermediate portion in the up-down direction corresponding to the first bending portion N.

The width dimension of the cover sheet 4 is set shorter than the width dimension of the substrate main body 31. The cover sheet 4 can cover a portion other than the left side portion of the substrate main body 31 from the front side. The right end portion and the lower end portion of the cover sheet 4 are integrally provided with the substrate body 31 or are continuously provided by welding.

The cover sheet 4 includes: an upper half 41 having a rectangular cross-section, a lower half 42 having a rectangular cross-section, a second bent portion R disposed between the upper half 41 and the lower half 42, and a continuous notch 43 for avoiding a gap between the right edge of the second bent portion R and the substrate main body 31.

The second bending portion R is provided at the center portion in the up-down direction of the cover sheet 4 in the expanded posture (T). The second bending portion R includes: a central folding line r1, wherein the central folding line r1 extends along the left-right direction and is in a straight line shape; and an upper and lower folding line r2, wherein the upper and lower folding line r2 is arranged above and below the central folding line r1, extends along the left and right direction, and is in a straight line shape.

The second bending portion R is configured to bend in a direction away from the first bending portion N in the folded posture (F). More specifically, the second bending portion R is formed in a mountain-fold shape in which the central folding line R1 is located inside the left and right folding lines R2 in the folded posture (F).

The holder main body JH of the holder J having the above-described configuration is folded by the first folded portion t12 and the second folded portion t22 as the second folded portion U only when the holder main body takes the unfolded posture, and is operable to be unfolded from the covering position (B) to the unfolded position (S). The second bending portion U and the third bending portion V are bent to be able to be positioned at the outer position (P).

The base sheet 3 and the cover sheet 4 of the holder J can take a folded posture (F) and an unfolded posture (T) with the first and second bending portions N, R as rotation centers. That is, the holder J can change its posture in accordance with the posture change of the cover body a. In other words, the holder J is configured to be folded in half so as to follow the cover body a after the cover body a is folded in half, and is folded in half by being folded at the first and second folding portions N, R provided at the central portion in the up-down direction.

Next, with reference to fig. 13 and 14, the operation of the first fold portion M when the folder is shifted from the folded posture (F) to the unfolded posture (T) will be described.

As shown in fig. 13, when the folder is in the folded posture (F), the inner surfaces of the front cover 1 and the back cover 2 face each other with the transparent pocket E and the holder J folded in half therebetween. At this time, regarding the first bending portion M, the center plate-like portion M3 located between the pair of inner folding lines M2 assumes a posture intersecting the front cover 1 and the back cover 2, and the upper plate-like portion M4 and the lower plate-like portion M5 located between the outer folding line M1 and the inner folding line M2 assume a posture extending coplanar with the front cover 1 and the back cover 2.

Next, when the folder is changed from the folded position (F) of fig. 13 to the unfolded position (T) of fig. 14, the front cover 1 and the back cover 2 are brought into a position that coincides with each other on the virtual same plane. Similarly, the transparent pocket E and the holder J are also changed from the folded state to be overlapped with each other in a state where the front cover 1 and the back cover 2 are spread on the inner surface side.

In the unfolded posture (T), the first folded portion M takes a shape of a letter コ protruding from the front cover 1 and the back cover 2.

That is, the center plate-like portion M3 of the first folded portion M is in a posture substantially parallel to the front cover 1 and the back cover 2. On the other hand, the upper plate-like portion M4 and the lower plate-like portion M5 in the first bending portion M are in a posture substantially orthogonal to the front cover 1, the back cover 2, and the central plate-like portion M3.

The first extending portion t1 provided continuously with the base sheet main body 31 is welded to the first binding sheet C provided continuously with the front cover 1, and the second extending portion t2 provided continuously with the base sheet main body 31 is welded to the second binding sheet D provided continuously with the back cover 2. Therefore, the distance of separation between the front cover 1 and the back cover 2 in the unfolded posture (T) is limited by the substrate main body 31 so as not to be separated.

As a result, the document holder can be changed in posture by the deformation of the first bending portion M protruding outward, that is, by the upper plate-like portion M4 and the lower plate-like portion M5 standing up with respect to the front cover 1 and the back cover 2, and the concentration of stress that may occur in the portion between the front cover 1 and the back cover 2 in the unfolded posture (T) can be appropriately released.

As described in detail above, the folder of the present embodiment includes: a cover body a having a front cover 1 and a back cover 2 connected via a first fold portion M and configured to be capable of assuming an unfolded posture (T) in which the front cover 1 and the back cover 2 are unfolded so as to be substantially coplanar and a folded posture (F) as a closed posture in which the inner surfaces of the front cover 1 and the back cover 2 face each other; and a holder J as a sheet body, the holder J being fixed to the cover body a and configured to be capable of performing an unfolding operation with respect to the cover body a via the second fold portion U only when the cover body a is in the unfolded posture (T). The first folded portion M can be protruded outward in the unfolded posture (T).

Therefore, in the case of the folder according to the present embodiment, the first bending portion M is configured to be capable of protruding outward in the unfolded posture (T), and therefore, the first bending portion M in the form of protruding outward in the unfolded posture (T) can be made to function as a finger catching portion of the user during use, and the portability of the user can be facilitated.

Further, since the holder J is provided so as to be capable of performing the unfolding operation with respect to the cover body a via the second bending portion U only when the unfolded posture (T) is assumed, it is possible to provide a folder capable of properly holding sheets such as paper between the cover body a and the holder J.

The cover body A comprises: a first binding sheet C as a first supporting sheet provided continuously with the front cover 1 via a first bending portion C2, and a second binding sheet D as a second supporting sheet provided continuously with the back cover 2 via a second bending portion D2. The holder J is fixed to the first and second binding sheets C, D.

Therefore, the holder J is appropriately supported by the cover body a.

A notch k1 is formed between the first bent portion c2 and the second bent portion d 2. Therefore, the operation of the first bending portion M provided between the front cover 1 and the back cover 2 can be smoothly performed without being hindered by the first and second binding sheets C, D.

The second bending portion U extends in a direction crossing the first bending portion M.

Therefore, the holder J can perform the unfolding operation appropriately at the second fold U when the cover body a assumes the unfolded posture (T). In other words, the folder has: a cover body a having a first folded portion M and capable of taking an unfolded posture (T) and a folded posture (F); and a holder J having a second bending portion U and capable of taking a spread position (S) and a cover position (B), wherein the cover body A and the holder J cooperate to form a structure capable of being folded into four. Therefore, the folder can properly hold sheets such as paper between the cover body a and the holder J.

The first bending portion M includes: a pair of outer folding lines M1, wherein the outer folding lines M1 are formed at the boundary parts of the first bending part M, the front cover 1 and the back cover 2; and a pair of inner folding lines m2, wherein the pair of inner folding lines m2 are parallel to the pair of outer folding lines m1 and are formed on the inner sides of the pair of outer folding lines m 1. In the unfolded posture (T), the upper and lower plate-like portions m4 and m5, which are portions between the outer fold line m1 and the inner fold line m2, can take a posture of standing up with respect to the front and rear covers 1 and 2.

Accordingly, the document holder can be changed in posture in which the upper plate-like portion M4 and the lower plate-like portion M5 stand up with respect to the front cover 1 and the rear cover 2 by the deformation of the first fold portion M, so that the concentration of stress that may occur in the portion between the front cover 1 and the rear cover 2 in the unfolded posture (T) is appropriately released.

That is, in the case of the folder according to the present embodiment, the first bending portion M is provided, so that the posture between the folded posture (F) and the unfolded posture (T) can be changed extremely smoothly.

The holders J as sheet bodies are welded to the first binding sheet C and the second binding sheet D, respectively. When the folding posture (F) is changed to the unfolding posture (T), the base end edge of the front cover 1 and the base end edge of the back cover 2 are not separated from each other.

Thus, the holder J is reliably engaged with the cover body a.

The first and second binding sheets C, D in the cover body a are fixed to the base sheet 3 of the holder J by welding, and the base sheet 3 is disposed so as to span between the first binding sheet C disposed continuously with the front cover 1 and the second binding sheet D disposed continuously with the back cover 2.

Therefore, the folder can be properly configured such that the base end portion of the front cover 1 and the base end portion of the back cover 2 do not separate from each other when the folder is shifted from the folded posture (F) to the unfolded posture (T). That is, in the case of the folder having such a configuration, the first bending portion M can appropriately assume a state of protruding outward in the unfolded posture (T).

The transparent pocket E as a bound body is supported by the first binding sheet C and the second binding sheet D via the first and second binding legs G, H as binding members.

Therefore, sheets such as paper sheets can be accommodated in the transparent pocket E and held appropriately.

Furthermore, the present utility model is not limited to the embodiments described in detail above.

The folder may include at least a cover body and a sheet body fixed to the cover body. That is, the document holder may not be provided with the binding object.

The bookbinding object may be any structure as long as it is provided on the inner surface side of the cover body, and is not limited to the transparent pocket as in the above embodiment. Examples of the other binding object include paper. The bound body is not limited to being supported by the cover body via the binding member, and may be fixed by welding or the like.

The bound body may be configured to be movable relative to the front cover instead of the back cover. The front cover and the back cover may be configured to be movable relative to each other.

The sheet body is not limited to the holder in the above embodiment, as long as the sheet body is fixed to the cover body and can be unfolded with respect to the cover body via the second bending portion only when the sheet body is in the unfolded posture.

The sheet may have at least a sheet-like portion, and a storage space capable of storing paper and the like as in the case of the holder may not be formed.

The sheet body is not limited to the binding base side of the cover body, and may be fixed to the side opposite to the binding base side.

The shape of the first bending portion may take an appropriate shape within a range not departing from the gist of the present utility model. That is, the first bending portion may be in a form protruding outward in the unfolded posture.

The bound body may be configured to be movable relative to the front cover instead of the back cover. The front cover and the back cover may be configured to be movable relative to each other.

In the above embodiment, the configuration in which the holders as sheet members are disposed so as to extend between the front cover and the back cover via the first binding sheet and the second binding sheet has been described, but the present utility model is not limited to this configuration. For example, the sheet body may be directly fixed to the front cover and the back cover without the first and second support sheets, and may be disposed so as to extend between the front cover and the back cover.

The sheet may be configured as follows, for example.

The structure shown in fig. 15 is a structure showing an example of another embodiment of the holder J as a cover or a sheet body fixed to a folder.

With the holder J shown in fig. 15, the lower half 312 in the substrate main body 31 is fixed to the left side end edge of the lower half 42 in the cover sheet 4 by welding and is provided integrally and continuously with the lower end edge of the lower half 42 in the cover sheet 4.

The right edge of the base sheet body 31 and the right edge of the cover sheet 4 are not continuously provided and can be separated from each other when taking out and putting in a document or the like.

The upper half 311 of the substrate main body 31 and the upper half 41 of the cover sheet 4 are configured to be relatively movable in the up-down direction.

More specifically, a guide mechanism GY is provided between the upper half 311 of the substrate main body 31 and the upper half 41 of the cover sheet 4. The guide mechanism GY can guide the upper half 311 of the base sheet main body 31 and the upper half 41 of the cover sheet 4 so as to be movable in the up-down direction in conjunction with the opening/closing operation between the folded posture (F) and the unfolded posture (T) in the cover body a.

The guide mechanism GY includes: a guide rail portion gy1 provided on one side portion (in the example of fig. 15, the left side portion of the upper half 41 of the cover sheet 4) of either the upper half 311 of the base sheet body 31 or the upper half 41 of the cover sheet 4, and extending in the up-down direction; and a rail holding portion gy2 provided on the other side (in the example of fig. 15, the left side portion of the upper half portion 311 of the substrate main body 31) and holding the rail portion gy1 so as to be relatively movable in the up-down direction. With such a configuration, the upper half 41 of the cover sheet 4 can be moved relative to the upper half 311 of the substrate body 31 when the holder J is in the folded-in-half posture, and therefore the cover sheet 4 can be folded smoothly.

The specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present utility model.

Claims (7)

1. A folder, the folder comprising: a cover body having a front cover and a back cover connected via a first fold portion, the cover body being configured to be capable of assuming an unfolded position in which the front cover and the back cover are unfolded so as to be substantially coplanar and a closed position in which inner surfaces of the front cover and the back cover face each other; and a sheet body fixed to the cover body and configured to be capable of performing an unfolding operation with respect to the cover body via the second bending portion only when the folded-out posture is assumed,

the first bending portion can be configured to protrude outward in the unfolded posture.

2. The document according to claim 1,

the cover body is provided with: a first support sheet that is provided continuously with the front cover via a first bending portion; and a second support piece that is provided continuously with the back cover via a second bending portion, and the sheet body is fixed to the first support piece and the second support piece.

3. The file according to claim 2,

a notch is formed between the first bending part and the second bending part.

4. The document according to claim 1,

the second bending portion extends in a direction intersecting the first bending portion.

5. The document according to claim 1,

the first bending portion includes: a pair of outer folding lines formed at boundary portions of the first folding portion and the front and back covers; and a pair of inner folding lines parallel to and formed inside the pair of outer folding lines,

in the unfolded position, a portion between the outer fold line and the inner fold line can take a position of being raised with respect to the front cover and the back cover.

6. The file according to claim 2,

the sheet bodies are respectively welded to the first supporting sheet and the second supporting sheet,

the folder is configured such that a base end edge of the front cover and a base end edge of the back cover do not separate from each other when the folder is shifted from the closed position to the open position.

7. The file according to claim 2,

the bound body is supported by the first support sheet and the second support sheet via a binding member.

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