JP7459363B2 - Binder with binding device - Google Patents

Description

The present invention relates to a binder with a binding tool.

BACKGROUND ART A binder (file) with a binding device is widely known, in which a binding device is fixed to a cover body to which binding objects such as loose-leaf paper with binding holes punched along one side and loose-leaf pockets can be bound.

This type of binder with a binding device usually arranges the opening/closing ring portions of the binding device along one side extending in the vertical direction of the cover body, and attaches binding holes drilled in loose-leaf paper, etc. to each opening/closing ring portion. It is designed to be bound. In addition, the cover body is known to consist of a front cover part and a back cover part, or to further include a spine part connected between the front cover part and the back cover part via a hinge part. .

In the stationery industry, there is a distinction between files, which are used to bind recorded documents, and binders, which are used to bind and record unrecorded loose leaves, etc., but in this specification, these are collectively referred to as "binders". do.

Japanese Patent Application Publication No. 2018-176607

The cover of a conventional binder with a binding device has the dimensions of the front and back covers slightly larger than the paper size, depending on the size of the paper to be bound (A4 size, A5 size, etc.). It is determined. In other words, the size of conventional binders with binding tools is generally determined by the size of the items to be bound, and the binder tends to be bulky in a bag when carried, so it is not very convenient.

The present invention was made in consideration of the above-mentioned circumstances, and its purpose is to provide a binder with binding devices that is highly convenient both when in use and when not in use, and an object to be bound that is suitable for such a binder with binding devices.

In order to solve the above problems, the present invention employs the following configuration. That is, the present invention provides a binder with a binding device that includes a cover body and a binding device fixed to a binding device fixed edge extending in the vertical direction of the cover body, A cover hinge part that extends across the entire width of the cover body in a direction orthogonal to the fixed edge of the binding device; An upper cover portion and a lower cover portion are connected to each other, and the binding tool includes a binding device fixed edge of at least one of the upper cover portion and the lower cover portion. or a plurality of base parts, and a binding ring part provided on the base part and capable of binding bound articles having binding holes, and the upper cover part with the cover hinge part as a border; By opening and closing the lower cover section, it is possible to switch between an unfolded state and a folded state.

Here, the cover hinge portion may be provided at a central position in the vertical direction of the cover body.

Further, the binder with a binding fastener is connected to a cover mounting portion attached to a binding fastening end edge side of the cover body, and to the cover mounting portion so as to extend in a vertical direction along the binding fastening fastening end edge, The cover body further includes an inner cover body having a cover body part that can be disposed opposite to the cover body, the cover body part extending over the entire width range along the width direction of the cover body part, and the cover body part extending over the entire width range along the width direction of the cover body part. a first cover hinge portion disposed at a position corresponding to the first cover hinge portion; and an upper cover region that is divided into upper and lower sections with the first cover hinge portion as a boundary and is rotatably connected via the first cover hinge portion. and a lower cover area, and can be switched between an unfolded state and a folded state by opening and closing the upper cover area and the lower cover area with the first cover hinge part as a boundary. You can.

The first cover hinge portion may be provided at a central position in the vertical direction of the cover main body portion.

Further, the cover attachment portion is provided independently of a first cover attachment portion that is slidably attached to the upper cover portion in a predetermined range along the binding edge fixed edge, and the first cover attachment portion, It may also include a second cover attachment part that is attached to the lower cover part so as to be slidable within a predetermined range along the binding edge fixed edge.

Here, the first cover attachment part has a first slide elongated hole extending along the binding fastener fixing edge, and is received in the first slide elongated hole and fixed to the upper cover part. The first engaging piece can be slid relative to the upper cover part by relatively displacing the first engaging piece along the first slide elongated hole, and the second cover mounting part can extend along the binding fixing edge. By displacing a second engagement piece received in the second slide slot and fixed to the lower cover part along the second slide slot, It may be slidable relative to the lower cover portion.

Further, the inner cover body has a second upper cover hinge portion that extends along a binding fixing edge of the cover body and rotatably connects the upper cover area portion to the first cover attachment portion. and the lower cover region extends along the binding fixing edge of the cover body and is provided independently of the second upper cover hinge part, and the lower cover area part is connected to the second cover attachment part. It may further include a second lower cover hinge portion that is rotatably connected.

Further, the inner cover body has a binding ring insertion opening into which the binding ring part is inserted, and the binding ring insertion opening is such that the first cover attachment part and the second cover attachment part are connected to the binding tool fixed end. The binder may have a vertical dimension along the binding fixed edge that can suppress interference with the binding ring when sliding along the binding ring.

The binding device includes a first binding device provided on the upper cover portion and a second binding device provided on the lower cover portion, and the binding device is configured to change the cover body from an unfolded state to a folded state. Further comprising an engaging means for maintaining the cover body in a folded state by mutually engaging the binding ring part of the first binding tool and the binding ring part of the second binding tool when switching. You can leave it there. In this case, the engagement means is provided in one of the binding ring portions of the first binding tool and the second binding tool, and is provided to protrude from the binding ring portion toward the extending direction of the fixed edge of the binding device. The engaging portion engages with the back side of the other binding ring portion of the first binding device and the second binding device when the cover body is switched from the unfolded state to the folded state. It may be configured to match.

The binder with the binding tool further includes a plurality of binding long holes formed along a binding hole side edge extending in the vertical direction and an object to be bound that is bound to the binding ring portion, and the object to be bound is
A fold line may extend from a central position in the up-down direction across the entire width in the lateral direction, and the binding slot may extend along a side edge of the binding hole.

Further, the present invention can be specified as a bound object to be bound in any of the above-mentioned binders with binding tools. That is, the present invention provides a bound article to be bound in a binder with a binding tool, in which a plurality of long binding holes are formed along the sides of the binding holes extending in the vertical direction, and the binding slots are formed from the center position in the vertical direction in the width direction. The folding line extends over the entire width range, and the binding elongated hole extends along the binding hole side.

According to the present invention, it is possible to provide a binder with a binding device that is highly convenient both when in use and when not in use, and a bound object suitable for the binder with a binding device.

FIG. 1 is a perspective view of the binder according to the first embodiment in an expanded state. FIG. 2 is a perspective view of the binder according to the first embodiment in a folded state. FIG. 3 is a diagram illustrating the state of the folding operation of the binder according to the first embodiment. FIG. 4 is a front view of the binder according to the first embodiment in an expanded state. FIG. 5 is a rear view of the binder according to the first embodiment in an unfolded state. FIG. 6 is a left side view of the binder according to Embodiment 1 in an expanded state. FIG. 7 is a right side view of the binder according to the first embodiment in an expanded state. FIG. 8 is a plan view of the binder according to the first embodiment in an expanded state. FIG. 9 is a bottom view of the binder according to the first embodiment in an expanded state. FIG. 10 is a front view of the binder when the inner cover body according to the first embodiment is placed in a facing-open position. FIG. 11 is a perspective view of the first binding tool. FIG. 12 is a perspective view of the first binding tool. FIG. 13 is a perspective view of the first binding device. FIG. 14 is an exploded view of the first base portion of the first binding tool. FIG. 15 is a perspective view of the second binding tool. FIG. 16 is a perspective view of the second binding device. FIG. 17 is a perspective view of the second binding device. FIG. 18 is an exploded view of the second base portion of the second binding tool. FIG. 19 is an explanatory diagram illustrating the distance from the height center line of the cover of the binder to each binding ring. FIG. 20 is a diagram illustrating the detailed structure of the second cover hinge part and the cover attachment part in the inner cover body of Embodiment 1. FIG. 21 is a diagram showing the inner cover body of the binder according to the first embodiment in a facing state. FIG. 22 is a diagram of loose-leaf sheets bound with the binding device according to the first embodiment in a two-page spread state. FIG. 23 is a front view of the loose-leaf paper according to the first embodiment. FIG. 24 is a diagram schematically showing the stacked state of the sheet materials stacked on the cover body of the binder in the unfolded state. FIG. 25 is a perspective view of the binder according to the second embodiment in an expanded state. FIG. 26 is a perspective view of the binder according to the second embodiment in a folded state. FIG. 27 is a diagram illustrating the folding operation status of the binder according to the second embodiment. FIG. 28 is a front view of the binder according to the second embodiment in an expanded state. FIG. 29 is a rear view of the binder according to the second embodiment in an expanded state. FIG. 30 is a left side view of the binder according to the second embodiment in an expanded state. FIG. 31 is a right side view of the binder according to the second embodiment in an expanded state. FIG. 32 is a plan view of the binder according to the second embodiment in an expanded state. FIG. 33 is a bottom view of the binder according to the second embodiment in an expanded state. FIG. 34 is a front view of the binder when the inner cover body according to the second embodiment is placed in a facing-open position. FIG. 35 is a front view of the binder when the inner cover body according to the second embodiment is placed in a facing-open position. FIG. 36 is a diagram illustrating a state in which loose-leaf sheets bound by the binding device according to the second embodiment are stacked on the inner cover body in a two-page spread state. FIG. 37 is a front view of loose-leaf paper according to the second embodiment. FIG. 38 is a front view of a binder according to a modified example. FIG. 39 is a front view of an A4 size binder in an expanded state. FIG. 40 is a rear view of an A4 size binder in an expanded state. FIG. 41 is a plan view of an A4 size binder in an expanded state. FIG. 42 is a bottom view of an A4 size binder in an expanded state. FIG. 43 is a left side view of an A4 size binder in an expanded state. FIG. 44 is a right side view of an A4 size binder in an expanded state. FIG. 45 is a perspective view of an A4 size binder in an expanded state. FIG. 46 is a perspective view showing a state in which an A4 size binder is being switched from an unfolded state to a folded state. FIG. 47 is a perspective view of an A4 size binder in a folded state. FIG. 48 is a front view of an inner cover body of an A4 size binder in an open position. FIG. 49 is a front view of an A4 size binder in which the inner cover body is in a facing-open position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet. FIG. 50 is a front view of an A4 size binder in a bifold state. FIG. 51 is a rear view of an A4 size binder in a two-folded state. FIG. 52 is a plan view of an A4 size binder folded in two. FIG. 53 is a bottom view of an A4 size binder in a folded state. FIG. 54 is a left side view of an A4 size binder in a two-folded state. FIG. 55 is a right side view of an A4 size binder in a bifold state. FIG. 56 is a front view of an A5 size binder in an unfolded state. FIG. 57 is a rear view of an A5 size binder in an expanded state. FIG. 58 is a plan view of an A5 size binder in an expanded state. FIG. 59 is a bottom view of an A5 size binder in an expanded state. FIG. 60 is a left side view of an A5 size binder in an expanded state. FIG. 61 is a right side view of an A5 size binder in an expanded state. FIG. 62 is a perspective view of an A5 size binder in an expanded state. FIG. 63 is a perspective view showing a state in which an A5 size binder is being switched from an unfolded state to a folded state. FIG. 64 is a perspective view of an A5 size binder in a folded state. FIG. 65 is a front view of the inner cover body of an A5 size binder in a facing-open position. FIG. 66 is a front view of an A5 size binder in which the inner cover body is in a facing-open position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet. FIG. 67 is a front view of an A5 size binder folded in half. FIG. 68 is a rear view of an A5 size binder folded in half. FIG. 69 is a plan view of an A5 size binder folded in half. FIG. 70 is a bottom view of an A5 size binder in a folded state. FIG. 71 is a left side view of an A5 size binder folded in half. FIG. 72 is a right side view of an A5 size binder folded in half. FIG. 73 is a front view of an A4 size binder in an expanded state. FIG. 74 is a rear view of an A4 size binder in an unfolded state. FIG. 75 is a plan view of an A4 size binder in an unfolded state. FIG. 76 is a bottom view of an A4 size binder in an unfolded state. FIG. 77 is a left side view of an A4 size binder in an expanded state. FIG. 78 is a right side view of an A4 size binder in an expanded state. FIG. 79 is a perspective view of an A4 size binder in an expanded state. FIG. 80 is a perspective view showing a state in which an A4 size binder is being switched from an unfolded state to a folded state. FIG. 81 is a perspective view of an A4 size binder in a folded state. FIG. 82 is a front view of an inner cover body of an A4 size binder in an open position. FIG. 83 is a front view of an A4 size binder in which the inner cover body is in a facing position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet. FIG. 84 is a front view of an A4 size binder folded in two. FIG. 85 is a rear view of an A4 size binder in a folded state. FIG. 86 is a plan view of an A4 size binder folded in half. FIG. 87 is a bottom view of an A4 size binder in a folded state. FIG. 88 is a left side view of an A4 size binder folded in half. FIG. 89 is a right side view of an A4 size binder in a folded state. FIG. 90 is a front view of an A5 size binder in an unfolded state. FIG. 91 is a rear view of an A5 size binder in an expanded state. FIG. 92 is a plan view of an A5 size binder in an expanded state. FIG. 93 is a bottom view of an A5 size binder in an unfolded state. FIG. 94 is a left side view of an A5 size binder in an expanded state. FIG. 95 is a right side view of an A5 size binder in an expanded state. FIG. 96 is a perspective view of an A5 size binder in an expanded state. FIG. 97 is a perspective view showing a state in which an A5 size binder is being switched from an unfolded state to a folded state. FIG. 98 is a perspective view of an A5 size binder folded in half. FIG. 99 is a front view of the inner cover body of an A5 size binder in a facing position. FIG. 100 is a front view of an A5 size binder in which the inner cover body is in a facing position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet. FIG. 101 is a front view of an A5 size binder folded in two. FIG. 102 is a rear view of an A5 size binder in a folded state. FIG. 103 is a plan view of an A5 size binder folded in two. FIG. 104 is a bottom view of an A5 size binder folded in half. FIG. 105 is a left side view of an A5 size binder in a folded state. FIG. 106 is a right side view of an A5 size binder in a two-folded state.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a binder (file) with a binding device according to the present invention will be described below with reference to the drawings. Note that the following embodiments are illustrative. In addition, in this specification, unless otherwise specified, the top and bottom that are visible in FIG. 4 are the "top and bottom (height)" of the file, and the left and right that are similarly visible are the "left and right (width)" of the file.

<Embodiment 1>
1 and 2 are perspective views of a binder with binding device (hereinafter simply referred to as a "binder") 1 according to a first embodiment. FIG. 1 is a perspective view of the binder 1 in an expanded state. FIG. 2 is a perspective view of the binder 1 in a two-fold state. Although details will be described later, the binder 1 in this embodiment can be switched between an unfolded state shown in FIG. 1 and a folded state shown in FIG. 2. Moreover, FIG. 3 is a diagram showing a folding operation state in the middle of switching the binder 1 according to the first embodiment between the unfolded state and the folded state.

Fig. 4 is a front view of the binder 1 according to the first embodiment in an unfolded state. Fig. 5 is a rear view of the binder 1 according to the first embodiment in an unfolded state. Fig. 6 is a left side view of the binder 1 according to the first embodiment in an unfolded state. Fig. 7 is a right side view of the binder 1 according to the first embodiment in an unfolded state. Fig. 8 is a plan view of the binder 1 according to the first embodiment in an unfolded state. Fig. 9 is a bottom view of the binder 1 according to the first embodiment in an unfolded state.

The binder 1 mainly includes a cover body 10, a ring-type binding device 20 fixed to the cover body 10, an inner cover body 30 attached to the cover body 10, and the like. The cover body 10 functions as an outer cover body provided on the back surface of the binder 1.

The binder 1 is configured as a so-called loose-leaf binder that can bind objects (refills) such as loose-leaf sheets with binding holes punched along one side and loose-leaf pockets using a binding tool 20. In the example shown in FIGS. 1, 3, etc., a loose-leaf paper S1 and an insole sheet S2 are sandwiched between the cover body 10 and the inner cover body 30, and are bound in the binding tool 20, as examples of objects to be bound. There is. In this embodiment, the binder 1 is a so-called A4 size binder suitable for binding A4 size loose-leaf sheets S1 and insert sheets S2, and the sizes of the cover body 10, inner cover body 30, etc. are determined. .

Further, although the details will be described later, the inner cover body 30 is attached to the cover body 10 so as to be openable and closable, and can be placed in a closed state (closed position) overlaid on the cover body 10 and in a closed state (closed position) overlaid on the cover body 10. It is possible to freely switch between the two-page spread state (two-page spread position) in which the two pages are not overlapped. 1 to 9, the inner cover body 30 is shown in a closed position. Furthermore, in FIGS. 4 to 9, illustrations of the loose-leaf paper S1 and the insert sheet S2 are omitted. The binder 1 is used in an unfolded state, for example, when writing on the loose-leaf paper S1 bound to the binding tool 20 or when attaching/detaching the loose-leaf paper S1. Furthermore, when the binder 1 is not in use, the size of the binder 1 in plan view can be halved by folding it into the two-fold state shown in FIG. In this way, by making the binder 1 compact when not in use, the convenience of carrying the binder 1 is improved. Further, even when the binder 1 is stored in a bag or the like, it is possible to suppress the inside of the bag from becoming bulky, so that it is easy to use.

[Cover body]
FIG. 10 is a front view of the binder 1 when the inner cover body 30 according to the first embodiment is placed in a facing-open position. In FIG. 10, illustrations of the loose-leaf paper S1 and the insert sheet S2 are omitted. As shown in FIG. 10, the cover body 10 has a generally rectangular shape as a whole, with an upper edge 11 and a lower edge 12 extending in the width direction of the cover body 10, and a binding tool extending in the vertical direction (height direction). A fixed edge 13 and a free edge 14 define the outer shape. The binding device fixed edge 13 of the cover body 10 is the edge (side) to which the binding device 20 is fixed, and the inner cover body 30 is attached near the binding device fixed edge 13. Further, the free end edge 14 of the cover body 10 is formed as a free end located on the opposite side to the binding tool fixed end edge 13. Note that the material used for the cover body 10 is not particularly limited, but a relatively hard resin such as polypropylene may be used, for example.

The upper edge 11 and lower edge 12 of the cover body 10 extend parallel to each other and have equal dimensions. The binding fixture fixed edge 13 and free edge 14 of the cover body 10 extend parallel to each other and have equal dimensions. The binding fixture fixed edge 13 and free edge 14 of the cover body 10 define the vertical dimension (height dimension) of the cover body 10, and the upper edge 11 and lower edge 12 define the horizontal dimension of the cover body 10. The symbol 10a indicates the inner surface (front) of the cover body 10, and the symbol 10b indicates the outer surface (back) of the cover body 10.

The cover body 10 is composed of an upper cover portion 15, a lower cover portion 16, and a cover hinge portion 17 connected to the upper cover portion 15 and the lower cover portion 16. The cover hinge portion 17 is a narrow rectangular area located at the center position in the vertical direction of the cover body 10, and divides the area of the cover body 10 into upper and lower parts. The cover hinge portion 17 extends in the horizontal direction over the entire width range of the cover body 10, and the cover hinge portion 17 is interposed between the upper cover portion 15 and the lower cover portion 16. The reference character L1 shown in FIG. 10 is a height center line indicating the center position in the vertical direction (height direction) of the cover body 10. The height center line L1 extends in a direction perpendicular to the binding fixing edge 13 and the free edge 14, and extends parallel to the upper edge 11 and the lower edge 12. 10, a first hinge line 171 is formed across the entire width of the cover hinge part 17 at the boundary between the cover hinge part 17 and the upper cover part 15, and the upper cover part 15 is rotatably connected to the cover hinge part 17 via the first hinge line 171. A second hinge line 172 is formed across the entire width of the cover hinge part 17 at the boundary between the cover hinge part 17 and the lower cover part 16, and the lower cover part 16 is rotatably connected to the cover hinge part 17 via the second hinge line 172. The first hinge line 171 and the second hinge line 172 of the cover hinge part 17 extend parallel to the height center line L1. In addition, in the vertical direction of the cover body 10, the distance from the height center line L1 of the cover body 10 to the first hinge line 171 is equal to the distance from the height center line L1 to the second hinge line 172.

The cover body 10 configured as described above has a cover hinge structure by rotating the upper cover part 15 and the lower cover part 16 with the first hinge line 171 and the second hinge line 172 of the cover hinge part 17 as boundaries. The upper cover part 15 and the lower cover part 16 are separated from each other with the section 17 as a boundary, thereby enabling opening and closing operations thereof. That is, by opening and closing the upper cover part 15 and the lower cover part 16 via the first hinge line 171 and the second hinge line 172 of the cover hinge part 17, the upper cover part 15, the cover hinge part 17, and the lower cover part 15 can be opened and closed. The posture can be freely switched between a unfolded state in which the cover part 16 is unfolded so as to be substantially on the same plane, and a folded state in which the inner surfaces of the upper cover part 15 and the lower cover part 16 face each other and are folded over each other. I can do it.

In addition, the cover body 10 is provided with a writing instrument holder 18, a first fastener 4, a second fastener 5, and the like. The writing instrument holder 18 is a holding member that can hold a writing instrument such as a fountain pen or a ballpoint pen by inserting it therein. As shown in FIGS. 1, 3, 9, etc., the first fastener 4 is disposed near the lower edge 12 of the lower cover portion 16 of the cover body 10, and the second fastener 5 is disposed near the lower edge 12 of the lower cover portion 16 of the cover body 10. It is arranged near the upper edge 11 of the upper cover part 15.

The first fastener 4 has an insertion piece 41, and the second fastener 5 has a locking opening 51 for locking the insertion piece 41 of the first fastener 4. The first fastener 4 and the second fastener 5 on the cover body 10 are provided at corresponding positions in the width direction of the cover body 10, and as shown in FIG. By inserting the insertion piece 41 of the first fastener 4 into the locking opening 51 of the second fastener 5, the insertion piece 41 is locked. Thereby, the binder 1 can be maintained in a folded state. Moreover, by pulling out the insertion piece 41 of the first fastener 4 from the locking opening 51 of the second fastener 5, these engagement states are released, and the binder 1 can be switched from the folded state to the unfolded state. can.

[Binding]
Next, a detailed structure of the binding device 20 fixed to the binding device fixing edge 13 side of the cover body 10 in the binder 1 will be described. As shown in Figs. 1 to 3, the binding device 20 in the binder 1 is configured to include a first binding device 20A and a second binding device 20B, each of which is provided on the lower cover portion 16 and the upper cover portion 15 of the cover body 10. The first binding device 20A has a first base portion 21 extending in one direction along the binding device fixing edge 13 in the lower cover portion 16 of the cover body 10, and a plurality of binding ring portions 23 that are annular opening and closing ring bodies arranged at equal intervals along the extension direction of the first base portion 21. The second binding device 20B has a second base portion 22 extending in one direction along the binding device fixing edge 13 in the upper cover portion 15 of the cover body 10, and a plurality of binding ring portions 24 that are annular opening and closing ring bodies arranged at equal intervals along the extension direction of the second base portion 22. The first base portion 21 of the first binding device 20A and the second base portion 22 of the second binding device 20B are formed of a relatively hard resin or the like. As described above, the binder 1 in this embodiment is configured to be foldable by opening and closing the upper cover portion 15 and the lower cover portion 16 at the cover hinge portion 17, so that the first base portion 21 and the second base portion 22 in the binding device 20 are arranged along the binding device fixed edge 13 of the cover body 10 so as not to straddle the cover hinge portion 17. Here, "not straddling the cover hinge portion 17" means that neither the first base portion 21 nor the second base portion 22 is formed to straddle both the areas of the upper cover portion 15 and the lower cover portion 16.

The first base portion 21 of the first binding device 20A and the second base portion 22 of the second binding device 20B are connected to the outer surface 10b of the lower cover portion 16 of the cover body 10, the upper surface They are each fixed to the outer surface 10b of the cover section 15. In the example shown in FIGS. 1 to 3 and the like, four binding ring portions 23 and 24 are arranged on the first base portion 21 and the second base portion 22, respectively. Below, when distinguishing the four binding ring parts 23 arranged on the first base part 21 of the first binding tool 20A, the four binding ring parts 23 disposed on the first base part 21 of the first binding tool 20A will be described in order from the outer side in the arrangement direction (separate from the cover hinge part 17). In order from the top), they are referred to as a first binding ring part 23A, a second binding ring part 23B, a third binding ring part 23C, and a fourth binding ring part 23D. In addition, when distinguishing the four binding ring parts 24 arranged on the second base part 22 of the second binding tool 20B, sequentially from the outside in the arrangement direction (the one farthest from the cover hinge part 17 ), the first binding ring part 24A, the second binding ring part 24B, the third binding ring part 24C, and the fourth binding ring part 24D. However, the number of binding ring parts 23 provided in the first base part 21 of the first binding tool 20A is not particularly limited. Similarly, the number of binding ring parts 24 provided on the second base part 22 of the second binding tool 20B is not particularly limited.

Here, FIGS. 11 to 13 are perspective views of the first binding tool 20A. A first binding ring part 23A to a fourth binding ring part 23D are provided at equal intervals from the first end Pe1 side to the second end Pe2 side of the first base part 21 of the first binding tool 20A. . The first base portion 21 includes a first base portion 25 extending in one direction and a second base portion 26. The second base 26 extends in one direction, is arranged parallel to and adjacent to the first base 25, and is integrally attached to the first base 25. The first base portion 25 and the second base portion 26 in the first binding device 20A are formed, for example, by resin molding.

FIG. 14 is an exploded view of the first base portion 21 in the first binding tool 20A. FIG. 14 shows a perspective view of the first base 25 and the second base 26. The first base portion 25 in the first base portion 21 is a holding member for holding the plurality of half ring portions 231, and has a substrate shape extending in one direction. Reference numeral 25a shown in FIG. 14 is the upper surface of the first base 25. As shown in FIG. A rivet 25c is protruded from the upper surface 25a of the first base portion 25 at a proper position. The first base portion 21 of the first binding tool 20A is constructed by inserting a rivet 25c provided on the upper surface 25a of the first base portion 25 into a through hole provided in the lower cover portion 16 of the cover body 10. , the upper surface 25a of the first base 25 is fixed in contact with the outer surface 10b of the cover body.

As shown in FIG. 14, the first base portion 25 of the first base portion 21 has four half ring portions 231 having a half ring shape at equal intervals along the longitudinal direction (axial direction) of the first base portion 25. It is set in. Each half-ring portion 231 has its base end connected to the outer surface 25b (see FIG. 11) of the first base portion 25, and extends in a substantially semicircular shape toward the upper surface 25a side of the first base portion 25. are doing. In addition, when distinguishing each half ring part 231 from each other, in order from the first end Pe1 side of the first base 25, the first half ring part 231A, the second half ring part 231B, and the third half ring part They are called ring portion 231C and fourth half ring portion 231D. Further, an engaging pawl 2310 is formed at the tip of each of the first half ring portion 231A and the fourth half ring portion 231D, which are arranged on the outer end side in the longitudinal direction (axial direction) of the first base portion 25. has been done. In addition, a fitting hole 2311 is formed at the tip of each of the second half ring portion 231B and the third half ring portion 231C, which are arranged inside the first base 25 in the longitudinal direction (axial direction). There is.

Further, as shown in FIG. 14, bearing portions 250 are provided in the vicinity of the first end Pe1, the second end Pe2, and the central portion of the first base 25 in the longitudinal direction. Each bearing portion 250 has a sliding surface 251 having a substantially cylindrical shape. Hereinafter, the bearing part 250 disposed near the first end Pe1 of the first base 25 will be referred to as the "first end bearing part 250A", and the bearing part 250 disposed near the second end Pe2 will be referred to as "the first end bearing part 250A". The bearing portion 250 disposed near the center portion is referred to as a “second end bearing portion 250B”, and the bearing portion 250 located near the center portion is referred to as a “center bearing portion 250C”.

The second base portion 26 in the first base portion 21 is a holding member for holding the plurality of half ring portions 232, and has a substrate shape extending in one direction. Reference numeral 26a shown in FIG. 14 is the upper surface of the second base 26, and reference numeral 26b is the outer surface of the second base 26. Moreover, the code|symbol Pe3 shown in FIG. 14 is the 1st end part in the longitudinal direction of the 2nd base part 26, and the code|symbol Pe4 is a 2nd end part located on the opposite side to the said 1st end part Pe3. The second base portion 26 is provided with four half ring portions 232 having a half ring shape at equal intervals along the longitudinal direction (axial direction) of the second base portion 26 . Each half ring portion 232 has its base end connected to the outer surface 26b of the second base 26, and extends substantially in a semicircular shape toward the upper surface 26a of the second base 26. In addition, when distinguishing each half ring part 232 from each other, in order from the first end Pe3 side of the second base 26, the first half ring part 232A, the second half ring part 232B, and the third half ring part They are called ring portion 232C and fourth half ring portion 232D. Further, an engaging pawl 2320 is formed at the tip of each of the first half-ring portion 232A and the fourth half-ring portion 232D, which are disposed on the outer end side in the longitudinal direction (axial direction) of the second base portion 26. The first half ring portion 231A and the fourth half ring portion 231D of the first base portion 25 can be engaged with engagement claws 2310 formed at the tips thereof. Further, the second half ring portion 232B and the third half ring portion 232C, which are disposed inside the second base portion 26 in the longitudinal direction (axial direction), have a second A protrusion (not shown) that can fit into a fitting hole 2311 formed at the tip of the half-ring portion 231B and the third half-ring portion 231C is formed.

Furthermore, the second base 26 has a shaft portion 260 extending along the longitudinal direction of the second base 26 . The shaft portion 260 of the second base portion 26 is a shaft member having a circular cross section, and is supported by bearings in each bearing portion 250 in the first base portion 25 . Reference numeral 260a shown in FIG. 14 is a first end region located at one end of the shaft 260, reference numeral 260b is a second end region located at the other end of the shaft 260, and reference numeral 260c is a first end region located at the other end of the shaft 260. This is the central area located in the center of the area. A first end region 260a, a second end region 260b, and a central region 260c of the shaft portion 260 correspond to a first end bearing portion 250A, a second end bearing portion 250B, and a central bearing portion 250C in the first base portion 25, respectively. Each is supported by a bearing.

The first base 25 and the second base 26 configured as described above have a second base portion 250A, a second end bearing portion 250B, and a center bearing portion 250C in the first base portion 25. The second base portion 26 is attached to the first base portion 25 with the first end region 260a, second end region 260b, and center region 260c of the shaft portion 260 of the second base portion 26 being respectively supported. As a result, as shown in FIGS. 11 to 13, a first base portion 21 is formed in which the first base portion 25 and the second base portion 26 are integrally combined.

Note that, as shown in FIGS. 11 to 13, when the second base 26 is attached to the first base 25, each of the half ring parts 231A to 231D in the first base 25 and each half of the second base 26 are connected to each other. The split ring portions 232A to 232D are arranged at corresponding positions in the longitudinal direction of the first base portion 21, respectively. Each half ring portion 231 in the first base portion 25 and each half ring portion 232 in the second base portion 26 form a pair to form each binding ring portion 23 of the first binding tool 20A. In FIGS. 11 to 13, the distal ends of each half ring part 231 of the first base 25 and each half ring part 232 of the second base 26 that form a pair engage with each other, so that each binding ring part 23 is in a closed position (closed state). In this state, the engaging claws 2310 formed at the tips of the first half-ring portion 231A and the fourth half-ring portion 231D of the first base 25 and the first half-ring portion 232A and the fourth half-ring portion 232A of the second base 26 Engagement claws 2320 formed at the tips of the quarter ring portions 232D engage with each other. Further, the second half ring portion 232B and the third half ring portion of the second base portion 26 are inserted into the fitting holes 2311 formed at the tips of the second half ring portion 231B and the third half ring portion 231C of the first base portion 25. A protrusion formed at the tip of the split ring portion 232C is fitted.

On the other hand, from the state where each binding ring part 23 in the first binding tool 20A is in the closed position (closed state), for example, the user The second part, which is rotatably supported by the bearing part 250 of the first base part 25, is released from the engagement between the engaging claws 2310 and 2320 by grasping it from both sides with fingers or the like and bending it inwardly and laterally. The shaft portion 260 of the base portion 26 is rotated in the first direction D1 shown in FIG. As a result, the first base 25 and the second base 26 undergo a relative rotational displacement, and each half ring 231 in the first base 25 and each half ring 232 in the second base 26, which form a pair, The tips move to an open position where they are separated from each other. Thereby, each binding ring portion 23 in the first binding tool 20A is switched from the closed position (closed state) to the open position (opened state). On the other hand, the shaft portion 260 of the second base portion 26 rotatably supported by the bearing portion 250 of the first base portion 25 from the state in which each binding ring portion 23 in the first binding device 20A is in the open position (open state). By rotating in the opposite direction to the first direction D1 shown in FIG. 12, the first base 25 and the second base 26 undergo a relative rotational displacement. As a result, each half ring part 231 in the first base part 25 and each half ring part 232 in the second base part 26 move to the closed position where their tips come close to each other and form an annular shape. Thereby, each binding ring portion 23 in the first binding tool 20A is switched from the open position (open state) to the closed position (closed state).

Further, as shown in FIG. 14, an engagement protrusion 233A that protrudes toward the adjacent fourth half ring 231D is provided at the tip of the third half ring 231C in the first base 25. It is being Furthermore, an engagement protrusion 233B that protrudes toward the adjacent fourth half ring 232D is provided at the tip of the third half ring 232C in the second base 26. When each binding ring portion 23 in the first binding device 20A is in the closed position (closed state), the engagement protrusion 233A located on the tip side of the third half ring portion 231C in the first base portion 25 and the second base portion The engaging protrusion 233B located on the distal end side of the third half ring portion 232C in 26 is combined to form the engaging portion 233.

Next, the second binding device 20B will be described. Figures 15 to 17 are perspective views of the second binding device 20B. The first binding ring portion 24A to the fourth binding ring portion 24D are provided at equal intervals from the first end Pe1 side to the second end Pe2 side of the second base portion 22 of the second binding device 20B. The second base portion 22 is configured to include a first base portion 25 extending in one direction and a second base portion 26. The second base portion 26 extends in one direction and is arranged parallel to and adjacent to the first base portion 25, and is attached integrally to the first base portion 25. The first base portion 25 and the second base portion 26 in the second base portion 22 basically have the same structure as the first base portion 25 and the second base portion 26 in the first base portion 21, and detailed description of the configuration common to the first base portion 21 will be omitted by assigning the same reference numerals.

FIG. 18 is an exploded view of the second base portion 22 in the second binding tool 20B. FIG. 18 shows a perspective view of the first base portion 25 and the second base portion 26 in the second base portion 22. As shown in FIG. The first base portion 25 of the second base portion 22 shown in FIG. 18 is a holding member for holding the plurality of half ring portions 241, and has a substrate shape extending in one direction. The second base portion 22 of the second binding tool 20B is constructed by inserting a rivet 25c provided on the upper surface 25a of the first base portion 25 into a through hole provided in the upper cover portion 15 of the cover body 10. The first base 25 is fixed with the upper surface 25a in contact with the outer surface 10b of the cover body.

As shown in FIG. 18, the first base portion 25 of the second base portion 22 has four half ring portions 241 having a half ring shape at equal intervals along the longitudinal direction (axial direction) of the first base portion 25. It is set in. Each half ring portion 241 has its base end connected to the outer surface 25b of the first base portion 25, and extends in a substantially semicircular shape toward the upper surface 25a side of the first base portion 25. In addition, when distinguishing each half ring part 241 from each other, in order from the first end Pe1 side of the first base 25, the first half ring part 241A, the second half ring part 241B, and the third half ring part 241A, the second half ring part 241B, and the third half ring part They are called ring portion 241C and fourth half ring portion 241D. Also in the second base part 22, the tips of each of the first half ring part 241A and the fourth half ring part 241D, which are arranged on the outer end side in the longitudinal direction (axial direction) of the first base part 25, are An engaging claw 2410 is formed. In addition, a fitting hole 2411 is formed at the tip of each of the second half-ring portion 241B and the third half-ring portion 241C, which are arranged inside the first base 25 in the longitudinal direction (axial direction). There is. Further, the first base portion 25 of the second base portion 22 is also provided with a first end bearing portion 250A, a second end bearing portion 250B, and a center bearing portion 250C.

The second base portion 26 of the second base portion 22 is a holding member for holding the plurality of half ring portions 242, and has a substrate shape extending in one direction. As shown in FIG. 18, the second base part 26 of the second base part 22 has four half ring parts 242 having a half ring shape at equal intervals along the longitudinal direction (axial direction) of the second base part 26. It is set in. Each half ring portion 242 has its base end connected to the outer surface 26b of the second base 26, and extends substantially in a semicircular shape toward the upper surface 26a of the second base 26. In addition, when distinguishing each half ring part 242 from each other, the first half ring part 242A, the second half ring part 242B, a third half ring portion 242C, and a fourth half ring portion 242D. Also in the second base part 22, the tips of each of the first half ring part 242A and the fourth half ring part 242D, which are arranged on the outer end side in the longitudinal direction (axial direction) of the second base part 26, are Engagement claws 2420 are formed, and can be engaged with engagement claws 2410 formed at the tips of the first half ring portion 241A and the fourth half ring portion 241D of the first base 25. . Further, the second half ring portion 242B and the third half ring portion 242C, which are disposed inside the second base 26 in the longitudinal direction (axial direction), have a second A protrusion (not shown) that can be fitted into a fitting hole 2411 formed at the tip of the half ring portion 241B and the third half ring portion 241C is formed. In addition, in each half ring part 241,242 in the 2nd binding-fastener 20B, the engagement protrusion part 233A, 233B is not provided.

Similar to the first base part 21 , the second base part 26 of the second base part 22 also has a shaft part 260 and is supported by bearings in each bearing part 250 in the first base part 25 of the second base part 22 . The first end region 260a, the second end of the shaft portion 260 of the second base portion 26 are As a result, the second base portion 26 is attached to the first base portion 25 while bearing the central region 260b and the central region 260c, thereby forming the second base portion 22 as shown in FIGS. 15 to 17.

Also in the second binding tool 20B, in a state where the second base 26 is attached to the first base 25, each of the half ring parts 241A to 241D in the first base 25 and each half ring part 242A in the second base 26 242D are arranged at corresponding positions in the longitudinal direction of the second base portion 22. Each half ring part 241 in the first base part 25 and each half ring part 242 in the second base part 26 form a pair to form each binding ring part 24 of the second binding fastener 20B. In the states shown in FIGS. 15 to 17, each binding ring portion 24 in the second binding device 20B is in a closed position (closed state). In this state, the engagement claws 2410 formed at the tips of the first half ring part 241A and the fourth half ring part 241D of the first base 25 in the second binding tool 20B and the first half of the second base part 26 are connected to each other. Engagement claws 2420 formed at the tips of the split ring portion 242A and the fourth half ring portion 242D engage with each other. Further, the second half ring portion 242B and the third half ring portion of the second base portion 26 are inserted into the fitting holes 2411 formed at the tips of the second half ring portion 241B and the third half ring portion 241C of the first base portion 25. A protrusion formed at the tip of the split ring portion 242C is fitted. On the other hand, from the state where each binding ring part 24 in the second binding fastener 20B is in the closed position (closed state), for example, the user is held by the bearing part 250 of the first base part 25 in the second base part 22 while releasing the engagement between the engaging claws 2410 and 2420 by grasping it from both sides with fingers or the like and bending it inwardly and laterally. The shaft portion 260 of the second base portion 26 is rotated in the first direction D1 shown in FIG. As a result, the first base 25 and the second base 26 undergo a relative rotational displacement, and each half ring portion 241 of the first base 25 and each half ring portion 242 of the second base 26 are rotated at their tip ends. Move to an open position where they are separated from each other. As a result, each binding ring portion 24 in the second binding device 20B is switched from the closed position (closed state) to the open position (opened state). On the other hand, the shaft portion 260 of the second base portion 26 rotatably supported by the bearing portion 250 of the first base portion 25 from the state where each binding ring portion 23 in the second binding fastener 20B is in the open position (open state). By rotating in the opposite direction to the first direction D1 shown in FIG. 15, the first base 25 and the second base 26 undergo a relative rotational displacement. As a result, each half-ring part 241 of the first base 25 and each half-ring part 242 of the second base 26 forming a pair are in the closed position where their tips are close to each other and form an annular shape. Moving. As a result, each binding ring portion 24 in the second binding device 20B is switched from the open position (open state) to the closed position (closed state).

As shown in FIG. 5 etc., the binding tool 20 configured as described above has the first end Pe1 of the first base part 21 in the first binding tool 20A facing the lower edge 12 side of the cover body 10, and The second end portion Pe2 is fixed to the outer surface 10b along the binding fixing edge 13 of the lower cover portion 16 with the second end portion Pe2 facing the cover hinge portion 17 side. In addition, with the first end Pe1 of the second base portion 22 in the second binding tool 20B facing the upper edge 11 side of the cover body 10 and the second end Pe2 facing the cover hinge portion 17 side, the upper cover It is fixed to the outer surface 10b side along the binding fastener fixed edge 13 of the portion 15. The lower cover part 16 of the cover body 10 is provided with an insertion hole 19A for inserting each half ring part 231 in each binding ring part 23 of the first binding tool 20A. The ring portion 231 extends toward the inner surface 10a of the cover body 10 through the insertion hole 19A. Similarly, the upper cover part 15 of the cover body 10 is provided with an insertion hole 19B for inserting each half ring part 241 in each binding ring part 24 of the second binding fastener 20B, and each half The ring portion 241 extends toward the inner surface 10a of the cover body 10 through the insertion hole 19B.

Here, FIG. 19 is an explanatory diagram illustrating the distance from the height center line L1 of the cover body 10 of the binder 1 to each of the binding rings 23 and 24 of the binding tool 20. FIG. 19 schematically shows a part of the binder 1 when viewed from the front. As mentioned above, the binder 1 can be switched between the unfolded state shown in FIG. 1 and the folded state shown in FIG. 2. Therefore, when the binder 1 is folded in half, each binding ring part 23 of the first binding tool 20A and each binding ring part 24 of the second binding tool 20B do not interfere with each other, and The positional relationship of each binding ring part 23, 24 is adjusted so that each binding ring part 23 and each binding ring part 24 in the second binding fastener 20B are arranged alternately. In addition, the staggered here means that each binding ring part 24 in the 2nd binding fastener 20B is positioned in the gap formed between adjacent binding ring parts 24 comrades in the 1st binding fastener 20A.

Here, the symbol Wr in the figure represents the width dimension (hereinafter referred to as
(referred to as "ring width"). The binding ring width Wr can also be said to be the length of each binding ring portion 23, 24 in the direction along the binding fastener fixed edge 13 of the cover body 10. The binding ring width Wr in each of the binding ring parts 23 and 24 is set to the same dimension except for the third binding ring part 23C of the first binding tool 20A from which the engaging part 233 is protruded. The three binding ring portion 23C has a binding ring width Wr larger than the other binding ring portions 23 and 24 due to the protruding portion of the engaging portion 233.

Symbols Db1 to Db4 shown in FIG. 19 are the distance dimensions in the vertical direction (direction along the binding fastener fixed edge 13) from the height center line L1 of the cover body 10 to the outer surface 234 of each binding ring part 23. , hereinafter referred to as "ring spacing dimension". Db1 is the binding ring separation dimension in the first binding ring part 23A, Db2 is the binding ring separation dimension in the second binding ring part 23B, Db3 is the binding ring separation dimension in the third binding ring part 23C, and Db4 is the binding ring separation dimension in the fourth binding ring part. This is the distance between the binding rings at 23D. Further, symbols Du1 to Du4 are binding ring separation dimensions in the vertical direction (direction along the binding fastener fixed edge 13) from the height center line L1 of the cover body 10 to the outer surface 244 of each binding ring portion 24. . Du1 is the separation dimension of the binding ring in the first binding ring portion 24A, Du2 is the separation dimension of the binding ring in the second binding ring portion 24B, Du3 is the separation dimension of the binding ring in the third binding ring portion 24C, and Du4 is the separation dimension of the binding ring in the fourth binding ring portion. This is the distance between the binding rings at 24D.

Here, the binding ring separation dimension Db1 in the first binding ring part 23A is set to a dimension larger than the binding ring separation dimension Du1 in the first binding ring part 24A by the binding ring width Wr. The binding ring separation dimension Db2 in the second binding ring part 23B is set to a dimension larger than the binding ring separation dimension Du2 in the second binding ring part 24B by the binding ring width Wr. The binding ring separation dimension Db3 in the third binding ring part 23C is set to a dimension larger than the binding ring separation dimension Du3 in the third binding ring part 24C by the binding ring width Wr. Also, the binding ring separation dimension Db4 in the fourth binding ring part 23D is set to a dimension larger than the binding ring separation dimension Du4 in the fourth binding ring part 24D by the binding ring width Wr.

By determining the distance between the binding rings 23 and 24 as described above, when the binder 1 is folded in half, the inner surface 235 of each binding ring part 23A to D in the first binding tool 20A is It comes into contact with the outer surface 244 of each of the binding ring portions 24A to D in the second binding tool 20B. That is, when the binder 1 is folded in half, the upper surface 236 of each binding ring part 23A to D in the first binding tool 20A and the upper surface 246 of each binding ring part 24A to D in the second binding tool 20B collide with each other. things are suppressed. As a result, as shown in FIG. 2, the binder 1 can be firmly folded to a position where the upper cover part 15 and the lower cover part 16 are sufficiently close to each other.

[Inner cover body]
Next, the inner cover body 30 of the binder 1 will be described. As shown in Figures 3, 4, 10, etc., the inner cover body 30 has a cover main body 34 consisting of an upper cover area 31, a lower cover area 32, and a first cover hinge part 33, a cover attachment part 35, and a second cover hinge part 36. The material forming the inner cover body 30 is not particularly limited, but an appropriate resin material can be suitably used.

The cover body 34 in the inner cover body 30 has a substantially rectangular planar shape, and has a width dimension and height dimension (vertical dimension) slightly smaller than the cover body 10. The cover body 34 has an outer shape defined by an upper edge 341 and a lower edge 342 extending in the width direction, and a connecting edge 343 and a free edge 344 extending in the vertical direction (height direction). The upper edge 341 and the lower edge 342 of the cover body 34 extend parallel to each other and have equal dimensions. The connecting edge 343 and the free edge 344 of the cover body 34 extend parallel to each other and have equal dimensions. The connecting edge 343 and the free edge 344 of the cover body 34 define the vertical dimension (height dimension) of the cover body 34, and the upper edge 341 and the lower edge 342 define the width dimension of the cover body 34.

The cover attachment part 35 in the inner cover body 30 is a member that is attached to the inner surface 10a of the cover body 10. The inner cover body 30 is integrated with the cover body 10 via a cover attachment part 35. The cover attachment part 35 is attached to a position near the binding tool fixed edge 13 on the cover body 10. Note that the manner in which the cover attachment portion 35 is attached to the cover body 10 will be described later. Further, the second cover hinge portion 36 in the inner cover body 30 rotatably connects the cover main body portion 34 and the cover attachment portion 35. The connecting edge 343 of the cover main body part 34 is an edge disposed along the binding fastener fixed edge 13 side of the cover body 10 and is connected to the second cover hinge part 36 . The free edge 344 of the cover main body portion 34 is an edge located on the opposite side from the connection edge 343.

The reference numeral 31a shown in FIG. 4 and the like is the front surface of the upper cover area portion 31, and the reference numeral 32a is the front surface of the lower cover area portion 32. Further, the reference numeral 31b shown in FIG. 10 is the back surface of the upper cover area portion 31, and the reference numeral 32b is the back surface of the lower cover area portion 32. The back surfaces 31b and 32b of the upper cover area section 31 and the lower cover area section 32 are connected to each other when the cover body section 34 of the inner cover body 30 is in a closed state (closed position) superimposed on the cover body 10. 10 (if the loose-leaf paper S1 is bound, it faces the loose-leaf paper S1).

The first cover hinge part 33 in the cover body part 34 is a hinge area that divides the cover body part 34 into upper and lower parts, that is, an upper cover area part 31 and a lower cover area part 32. line). The first cover hinge part 33 in the cover body part 34 is arranged at the center position in the vertical direction (height direction) of the cover body part 34, and extends over the entire width range along the width direction of the cover body part 34. are doing. That is, the first cover hinge portion 33 of the cover body portion 34 extends in a direction that is perpendicular to the connecting edge 343 and the free edge 344 of the cover body portion 34 and parallel to the upper edge 341 and the lower edge 342. In the cover main body section 34 configured in this manner, the first cover hinge section 33 substantially vertically overlaps the cover hinge section 17 of the cover body 10 when the inner cover body 30 is in a closed state (closed posture). .

The cover main body part 34 configured as described above has a first cover hinge part 33 formed along the width direction at a central position in the height direction of the cover main body part 34, and an upper cover area part 31 located above and below the first cover hinge part 33 and The lower cover area portion 32 is divided. Therefore, the cover main body part 34 can be switched between the unfolded state and the folded state by opening and closing the upper cover area part 31 and the lower cover area part 32 with the first cover hinge part 33 as a boundary.

Next, details of the second cover hinge part 36 and the cover attachment part 35 in the inner cover body 30 will be explained. FIG. 20 is a diagram illustrating the detailed structure of the second cover hinge portion 36 and the cover attachment portion 35 in the inner cover body 30 of the first embodiment.

The second cover hinge part 36 in the inner cover body 30 includes a second upper cover hinge part 36A connected to the upper cover area part 31 of the cover body part 34, and a second lower cover hinge part 36A connected to the lower cover area part 32 of the cover main body part 34. It has a cover hinge part 36B. The second upper cover hinge part 36A and the second lower cover hinge part 36B are independent from each other and are not connected to each other. In addition, in FIG. 20, for convenience, the second upper cover hinge part 36A and the second lower cover hinge part 36B are marked with dot hatching.

Note that the second upper cover hinge part 36A and the second lower cover hinge part 36B are substantially the same member, and are connected to the first hinge line 361 connected to the cover main body part 34 and the cover attachment part 35. It has a second hinge line 362. The first hinge line 361 and the second hinge line 362 are parallel to each other and extend in a direction perpendicular to the first cover hinge portion 33 . Further, the first hinge line 361 of the second upper cover hinge portion 36A is connected to the connecting edge 343 in the upper cover region portion 31. The first hinge line 361 of the second lower cover hinge portion 36B is connected to the connecting edge 343 in the lower cover region portion 32.

The cover attachment portion 35 in the inner cover body 30 has a pair of first and second cover attachment portions 35A and 35B that are independent of each other. The first cover attachment portion 35A in the inner cover body 30 is slidably attached to the first retaining portion 100A fixed to the inner surface 10a of the upper cover portion 15 in the cover body 10, and is connected to the second upper cover hinge portion 36A. The second cover attachment portion 35B is slidably attached to the second retaining portion 100B fixed to the inner surface 10a of the lower cover portion 16 in the cover body 10, and is connected to the second lower cover hinge portion 36B.

The first cover attachment portion 35A and the second cover attachment portion 35B have a substantially rectangular shape with a height dimension (vertical dimension) larger than a width dimension. The first cover attachment portion 35A and the second cover attachment portion 35B have substantially the same structure, and are arranged line-symmetrically with respect to the first cover hinge portion 33 (hinge line) in the cover body portion 34. Reference numeral 351 is a first edge of the first cover attachment part 35A and second cover attachment part 35B, and reference numeral 352 is a second edge of the first cover attachment part 35A and second cover attachment part 35B. The first end edge 351 and the second end edge 352 are parallel and extend in a direction perpendicular to the first cover hinge section 33 (hinge line) in the cover main body section 34. The first edge 351 of the first cover attachment part 35A and the second cover attachment part 35B is the second hinge line of the second cover hinge part 36 (the second upper cover hinge part 36A and the second lower cover hinge part 36B). 362.

Furthermore, a pair of first slide elongated holes 353A, 353A arranged in a straight line in the vertical direction are bored in the first cover attachment part 35A so as to penetrate through the first cover attachment part 35A. The pair of first slide elongated holes 353A, 353A are rectangular elongated holes extending in the vertical direction of the first cover attachment portion 35A. The pair of first slide elongated holes 353A, 353A are arranged at the same position in the width direction of the first cover attachment part 35A. Similarly, a pair of second slide elongated holes 353B, 353B arranged in a straight line in the vertical direction are also formed in the second cover attachment part 35B so as to pass through the second cover attachment part 35B. The pair of second slide elongated holes 353B, 353B are rectangular elongated holes extending in the vertical direction of the second cover attachment portion 35B. The pair of second slide elongated holes 353B, 353B are arranged at the same position in the width direction of the second cover attachment part 35B.

Next, the first holding section 100A and the second holding section 100B provided on the cover body 10 will be explained. The first holding part 100A and the second holding part 100B have substantially the same structure, and are configured line-symmetrically with respect to the center line L1 of the cover body 10. The first holding portion 100A includes a pair of first engaging pieces 101A, 101A arranged spaced apart in the vertical direction of the upper cover portion 15 of the cover body 10, and an inner side of the pair of first engaging pieces 101A, 101A. It has a guide portion 102A arranged therein, a pair of first engaging pieces 101A, 101A, and a slide suppressing plate 103A spanning over the upper surface of the guide portion 102A.

The pair of first engagement pieces 101A, 101A and the guide portion 102A in the first holding portion 100A are thin strips extending along the vertical direction of the upper cover portion 15 (the extension direction of the binding tool fixing edge 13) and are fixed to the inner surface 10a of the upper cover portion 15. The pair of first engagement pieces 101A, 101A are substantially the same member and are arranged at the same position in the horizontal width direction of the upper cover portion 15. In addition, the longitudinal dimension extending in the vertical direction of each of the first engagement pieces 101A, 101A is set to a dimension smaller than the long axis dimension of each of the first slide long holes 353A, 353A in the first cover mounting portion 35A. In addition, as shown in FIG. 20, each of the first engagement pieces 101A, 101A is arranged in a state of being accommodated in each of the first slide long holes 353A, 353A in the first cover mounting portion 35A. The plate thicknesses of the pair of first engagement pieces 101A, 101A and the guide portion 102A are equal to each other and slightly greater than the plate thickness of the first cover mounting portion 35A. The slide stopper plate 103A in the first holding portion 100A is a flat plate member having a substantially trapezoidal planar shape, and its lower surface is fixed to the pair of first engagement pieces 101A, 101A and the upper surface of the guide portion 102A. The first holding portion 100A configured as described above forms a slide space 104A extending along the up-down direction of the upper cover portion 15 by the lower surface of the slide stopper plate 103A, the inner surface 10a of the upper cover portion 15, the side surfaces of the pair of first engagement pieces 101A, 101A, and the side surface of the guide portion 102A.

Also in the second holding part 100B, a pair of second engagement pieces 101B, 101B arranged apart from each other in the vertical direction of the lower cover part 16 of the cover body 10, and a pair of first engagement pieces 101B, 101B. It has a guide portion 102B disposed inside, a pair of first engaging pieces 101B, 101B, and a slide suppressing plate 103B spanning over the upper surface of the guide portion 102B.

The pair of second engaging pieces 101B, 101B and the guide part 102B in the second holding part 100B are thin strip-shaped pieces extending along the vertical direction of the lower cover part 16 (the direction in which the binding fastener fixing edge 13 extends). This is fixed to the inner surface 10a of the lower cover portion 16. The pair of first engaging pieces 101B, 101B are substantially the same member and are arranged at the same position in the width direction of the lower cover portion 16. Further, the longitudinal dimension of each of the second engagement pieces 101B, 101B extending in the vertical direction is set to be smaller than the longitudinal dimension of each of the second slide elongated holes 353B, 353B in the second cover attachment portion 35B. Further, as shown in FIG. 20, each of the second engagement pieces 101B, 101B is disposed in a state housed in each of the second slide elongated holes 353B, 353B in the second cover attachment portion 35B. Further, the thicknesses of the pair of first engaging pieces 101B, 101B and the guide portion 102B are equal to each other, and are slightly larger than the thickness of the second cover attachment portion 35B. Further, the slide restraining plate 103B in the second holding portion 100B is a flat plate member having a substantially trapezoidal planar shape, and its lower surface is fixed to the upper surface of the pair of first engaging pieces 101B, 101B and the guide portion 102B. . The second holding section 100B configured as described above includes the lower surface of the slide restraining plate 103B, the inner surface 10a of the lower cover section 16, the side surfaces of the pair of first engaging pieces 101B and 101B, and the side surface of the guide section 102B. A slide space 104B extending along the vertical direction of the lower cover portion 16 is formed.

The first cover attachment part 35A of the inner cover body 30 receives each of the first engagement pieces 101A and 101A of the first holding part 100A in each of the first slide elongated holes 353A and 353A, and also receives each of the first engagement pieces 101A and 101A of the first holding part 100A in each of the first slide elongated holes 353A and 353A. , 353A closer to the second edge 352 is held by the first holding portion 100A with the band-shaped region 354A located in the slide space 104A of the first holding portion 100A. Thereby, the first cover attachment part 35A of the inner cover body 30 relatively displaces the first engagement pieces 101A, 101A fixed to the upper cover part 15 along the longitudinal direction of the first slide elongated holes 353A, 353A. This allows vertical sliding within a predetermined range with respect to the upper cover portion 15.

Similarly, the second cover attachment part 35B of the inner cover body 30 receives each second engagement piece 101B, 101B of the second holding part 100B in each second slide elongated hole 353B, 353B, and each second slide It is held by the second holding part 100B with the band-shaped region 354B located closer to the second edge 352 than the elongated holes 353B, 353B arranged in the slide space 104B of the second holding part 100B. As a result, the second cover attachment portion 35B of the inner cover body 30 allows the second engagement pieces 101B, 101B fixed to the lower cover portion 16 of the cover body 10 to move in the longitudinal direction of the second slide elongated holes 353B, 353B. By relatively displacing the cover along the lower cover portion 16, vertical sliding is possible within a predetermined range with respect to the lower cover portion 16.

As shown in FIG. 20, the inner cover body 30 has a binding ring insertion opening 37A for inserting each binding ring part 24 of the binding device 20 and a binding ring insertion opening 37B for inserting each binding ring part 23, which penetrate the inner cover body 30. The binding ring insertion opening 37A of the inner cover body 30 is formed across the area near the connecting edge 343 in the upper cover area 31, the area near the first edge 351 in the second upper cover hinge part 36A and the first cover mounting part 35A. The binding ring insertion opening 37B of the inner cover body 30 is formed across the area near the connecting edge 343 in the lower cover area 32, and the area near the first edge 351 in the second lower cover hinge part 36B and the second cover mounting part 35B.

[Loose-leaf paper]
Next, the loose-leaf paper S1 bound in the binder 1 will be explained. FIG. 21 is a diagram showing the inner cover body 30 of the binder 1 according to the first embodiment in a facing state. FIG. 22 is a diagram illustrating a state in which the loose-leaf sheets S1 bound by the binding device 20 according to the first embodiment are stacked on the inner cover body 30 in a two-page spread state. FIG. 23 is a front view of loose-leaf paper S1 according to the first embodiment. The loose-leaf paper S1 is a paper sheet material having a substantially rectangular shape in plan view, and has a size that fits the binder 1. In this embodiment, the size of the loose-leaf paper S1 is A4 size, but the size is not limited to this. The outer shape of the loose-leaf paper S1 is defined by an upper side 101 and a lower side 102 extending in the width direction, a binding hole side 103 and a free end side 104 extending in the vertical direction (height direction). The upper side 101 and the lower side 102 of the loose-leaf paper S1 extend in parallel and have equal dimensions. Further, the binding hole side 103 and the free end side 104 extend in parallel and have the same dimensions. The reference numeral 105 in the figure is the front side of the loose-leaf paper S1, and the reference numeral 106 is the back side of the loose-leaf paper S1. When the loose leaf paper S1 is viewed from the front 105 side, the binding hole side 103 is arranged on the left side, and the free end side 104 is arranged on the right side. The loose leaf paper S1 has a plurality of binding holes arranged along the binding hole side 103. Further, ruled lines or the like may be printed on the front surface 105 and the back surface 106 of the loose-leaf paper S1.

The loose-leaf paper S1 has a fold line 107 arranged at the center position in the vertical direction of the loose-leaf paper S1. The folding line 107 extends over the entire width of the loose-leaf paper S1 along the width direction, and divides the plane of the loose-leaf paper S1 into an upper region 108 and a lower region 109. The folding line 107 extends in a direction perpendicular to the binding hole side 103 and the free end side 104, and extends parallel to the upper side 101 and the lower side 102. The loose-leaf paper S1 formed in this manner is capable of relative rotation such that the upper region 108 and the lower region 109 face each other with the fold line 107 as a boundary. That is, the loose-leaf paper S1 can be folded in half along the fold line 107.

Next, a plurality of binding holes arranged along the binding hole side 103 of the loose-leaf paper S1 will be described. In the lower region 109 of the loose-leaf paper S1, four binding elongated holes 111 are arranged along the binding hole side 103. Each binding elongated hole 111 is formed in order to insert each binding ring portion 23 of the first binding tool 20A in the binder 1. Four binding elongated holes 112 are arranged along the binding hole side 103 in the upper region 108 of the loose-leaf paper S1. Each binding elongated hole 112 is formed in order to insert each binding ring portion 24 of the second binding tool 20B in the binder 1. In addition, on the binding hole side 103 of the loose-leaf paper S1, seven circular binding holes 113 and 114 each having a circular shape are arranged between the binding long hole 111 group and the binding long hole 112 group. The circular binding holes 113 are arranged in the lower region 109 of the loose-leaf paper S1, and the circular binding holes 114 are arranged in the upper region 108 of the loose-leaf paper S1. However, in the loose-leaf paper S1 of this embodiment, the circular binding holes 113 and 114 may not be provided.

In the loose-leaf paper S1, each binding slot 111 in the lower region 109 and each binding slot 112 in the upper region 108 are arranged line-symmetrically with respect to the folding line 107. Further, each circular binding hole 113 in the lower region 109 and each circular binding hole 114 in the upper region 108 are also arranged symmetrically with respect to the folding line 107. Symbol E1 is the inner end of each binding slot 111, 112 in the vertical direction, and symbol E2 is an outer end of each binding slot 111, 112 in the vertical direction. The inner end E1 of each of the binding slots 111 and 112 is the end closer to the folding line 107. The outer end E2 of each binding elongated hole 111, 112 is the end farthest from the folding line 107. In this embodiment, the long axis L2 of each binding slot 111, 112 is inclined with respect to the binding hole side 103. More specifically, each binding elongated hole 111, 112 has a long axis relative to the binding hole side 103 such that the outer end E2 is located closer to the binding hole side 103 than the inner end E1. L2 is inclined. Note that in this embodiment, loose-leaf paper S1 is disclosed as an example of an object to be bound, but a clear pocket made of resin film having binding slots 111, 112 and folding lines 107 similar to those of loose-leaf paper S1 is used as a binder. 1 may be bound.

[Insole sheet]
Next, with reference to FIG. 22, the insole sheet S2 bound to the binder 1 will be described. The insole sheet S2 is a paper sheet material having a substantially rectangular shape in plan view, and has a size that matches the binder 1. The outer shape of the insole sheet S2 is defined by an upper side 121 and a lower side 122 extending in the width direction, a binding hole side 123 and a free end side 124 extending in the vertical direction (height direction). The upper side 121 and lower side 122 of the insole sheet S2 extend in parallel and have equal dimensions. Further, the binding hole side 123 and the free end side 124 extend in parallel and have the same dimensions. Reference numeral 125 in the figure indicates the front side of the insole sheet S2. When the insole sheet S2 is viewed from the front 125 side, the binding hole side 123 is arranged on the left side, and the free end side 124 is arranged on the right side.

The insole sheet S2 has a fold line 127 arranged at the center position in the vertical direction of the insole sheet S2. The folding line 127 extends across the entire width of the insole sheet S2 in the width direction, and divides the plane of the insole sheet S2 into an upper region 128 and a lower region 129. The folding line 127 extends in a direction perpendicular to the binding hole side 123 and the free end side 124, and extends parallel to the upper side 121 and the lower side 122. The insole sheet S2 formed in this manner is capable of relative rotation such that the upper region 128 and the lower region 129 face each other with the fold line 127 as a boundary. That is, the insole sheet S2 can be folded in half along the folding line 127.

The insole sheet S2 has a plurality of binding holes arranged along the binding hole side 123. In the lower region 129 of the insole sheet S2, four binding elongated holes 131 are arranged along the binding hole side 123. Each binding elongated hole 131 is formed in order to insert each binding ring portion 23 of the first binding tool 20A in the binder 1. In the upper region 128 of the insole sheet S2, four binding elongated holes 132 are arranged along the binding hole side 123. Each binding elongated hole 132 is formed in order to insert each binding ring part 24 of the second binding tool 20B in the binder 1.

In the insole sheet S2, each binding long hole 131 in the lower region 129 and each binding long hole 132 in the upper region 128 are arranged symmetrically with respect to the folding line 127. In addition, the axis of each binding long hole 131, 132 in the insole sheet S2 extends parallel to the binding hole side edge 123. In addition, the symbol E1 is the inner end in the vertical direction of each binding long hole 131, 132, and the symbol E2 is the outer end in the vertical direction of each binding long hole 131, 132. The inner end E1 of each binding long hole 131, 132 is the end closer to the folding line 127. The outer end E2 of each binding long hole 131, 132 is the end farther from the folding line 127. In addition, the symbol L3 is the axis of each binding long hole 131, 132. The long axis L3 of each of the binding elongated holes 131 and 132 extends parallel to the binding hole side edge 123.

The binder 1 configured as described above, the cover body 10, the inner cover body 30, and the loose-leaf paper S1 and the insole sheet S2, which are bound objects bound to the binder 1, can all be folded into two. Thereby, the attitude of the binder 1 can be freely changed between the unfolded state shown in FIG. 1 and the folded state shown in FIG. 2. Therefore, when writing on the loose-leaf paper S1 bound in the binder 1 or when attaching and detaching the loose-leaf paper S1, the binder 1 can be unfolded and used in a state where the size in plan view is large, making it easy to use. . On the other hand, when the binder 1 is not in use, it is folded in half to make the size of the binder 1 compact in plan view, thereby improving convenience when carrying the binder 1. Furthermore, when the binder 1 is stored in a bag or the like, it is possible to prevent the inside of the bag from becoming bulky. That is, the binder 1 in this embodiment is excellent in both convenience in use and convenience when not in use.

In addition, referring to the characteristics of each part constituting the binder 1, the first base part 21 and the second base part 22 of the binding tools 20 (first binding tool 20A, second binding tool 20B) in the binder 1 are The binding device is arranged along the fixed edge 13 of the binding device so as not to straddle the cover hinge portion 17. According to this, when the binder 1 (cover body 10) is folded in half, the first base part 21 and the second base part 22 are prevented from functioning like a splint, and the cover hinge part 17 is used as the center. It becomes possible to fold the binder 1 smoothly.

In addition, the cover hinge portion 17 of the cover body 10, the first cover hinge portion 33 of the inner cover body 30, the fold line 107 of the loose-leaf paper S1, and the fold line 127 of the insert sheet S2 are aligned in the vertical direction (height direction). Since the binder 1 is arranged at the center position, the size of the binder 1 in a plan view can be made most compact when it is folded in half.

In addition, the binding tool 20 of the binder 1 can be used when the binder 1 is folded in half by determining the distance between the binding rings from the height center line L1 of the cover body 10 to each of the binding ring parts 23 and 24 as described above. In addition, it is possible to prevent the upper surface 236 of each binding ring part 23 in the first binding tool 20A and the upper surface 246 of each binding ring part 24 in the second binding tool 20B from colliding with each other. As a result, the binder 1 can be firmly folded to a position where the upper cover part 15 and the lower cover part 16 are sufficiently opposed to each other and close to each other. That is, when the binder 1 is folded in half, each binding ring part 23 of the first binding tool 20A and each binding ring part 24 of the second binding tool 20B are arranged alternately without interfering with each other. be able to. As a result, the binder 1 can be folded securely so that the upper cover part 15 and the lower cover part 16 of the binder 1 overlap.

Furthermore, according to the binding device 20 of the binder 1, when the binder 1 (cover body 10) is switched from the unfolded state to the folded state, the third binding ring portion 23C of the first binding device 20A and the second binding device 20B The binder 1 (cover body 10) is provided with an engaging portion 233 as an engaging means for maintaining the binder 1 (cover body 10) in a folded state by mutually engaging the third binding ring portion 24C. According to this, when the binder 1 is folded in half, the engaging portion 233 protruding from the third binding ring portion 23C of the first binding tool 20A is connected to the third binding ring portion 24C of the second binding tool 20B. The engaging portion 233 can be inserted into the back surface side of the third binding ring portion 23C, and the engaging portion 233 can be engaged with the back surface portion Pb (see FIG. 16) of the third binding ring portion 23C. As a result, the cover body 10 of the binder 1 can be easily locked so as to be maintained in the folded state. Thereby, it becomes possible to maintain the posture of the binder 1 in a folded state, and it is possible to suitably prevent the binder 1 from being unfolded against the will of the user of the binder 1. That is, it is possible to prevent the binder 1 from being unfolded without permission while being carried in a folded state or inside a bag or the like.

In particular, in this embodiment, the engagement means for maintaining the binder 1 (cover body 10) in a folded state are the binding ring portion 23 on the first binding device 20A side and the binding device on the second binding device 2B side. Since this is realized by meshing with the ring portion 24, it is advantageous from the viewpoint of manufacturing cost, and is excellent in cost effectiveness. Further, according to the engaging portion 233, the engaging portion 233 provided on the third binding ring portion 23C automatically opens the back surface portion Pb of the third binding ring portion 24C by simply folding the binder 1 in half. Since the binder 1 can be engaged with the binder 1, the user is not forced to perform any special action just to lock the binder 1 in the folded state, and it is possible to provide the binder 1 which is easy to use for the user. However, the engaging means in this embodiment is not limited to the specific aspect of the engaging portion 233, and various aspects can be adopted.

In addition, in the said embodiment, although the engaging part 233 was formed in the binding ring part 23 of 20 A of 1st binding tools, it is not limited to this. For example, the engaging portion 233 may be provided on the binding ring portion 24 side of the second binding tool 20B. In that case, the engaging portion 233 may be provided on the outer surface 244 side of the binding ring portion 24 in the second binding tool 20B. For example, by forming the engaging part 233 on the outer surface 244 side of the third binding ring part 24C in the second binding tool 20B, when the binder 1 is folded in half, the third binding ring part in the first binding tool 20A The engaging portion 233 can be inserted into the back side of 23C and engaged easily. Of course, the object on which the engaging portion 233 is formed is not limited to the third binding ring portion 23C and the third binding ring portion 24C, and may be formed on other binding ring portions 23 and 24. Also,
The engaging portion 233 may be formed on the plurality of binding ring portions 23 and 24. By forming the engaging portions 233 on the plurality of binding ring portions 23 and 24, the locking function for holding the binder 1 in the folded state can be further enhanced. Furthermore, an engaging part 233 is formed in each of the binding ring part 23 and the binding ring part 24, which are in a positional relationship facing each other when the binder 1 is folded in half, and the other engaging part is formed on the back side of one engaging part 233. 233 may be inserted and engaged.

Further, in the above embodiment, the binding ring separation dimensions Db1 to Db4 of each binding ring part 23 in the first binding fastener 20A are set to be larger than the binding ring separation dimensions Du1 to Du4 of each binding ring part 24 in the second binding fastener 20B. Although an example has been described in which the size is set to be larger by the binding ring width Wr, the binding ring separation dimensions Db1 to Db4 may be made larger than the binding ring separation dimensions Du1 to Du4 by the binding ring width Wr or more. As a result, when the binder 1 is folded in half, collision between the upper surface 236 of each binding ring part 23 in the first binding tool 20A and the upper surface 246 of each binding ring part 24 in the second binding tool 20B is preferably suppressed. However, the binding ring portions 23 and the binding ring portions 24 can be arranged alternately.

By the way, when folding the unfolded binder 1 in half, for example, when the user closes the upper cover part 15 and the lower cover part 16 of the cover body 10, the insole sheet S2 and the loose leaf arranged inside these can be folded. The paper S1, the cover main body part 34, etc. are sequentially folded in conjunction with each other. Here, when the binder 1 is in the unfolded state, as schematically shown in FIG. 24, on the inner surface 10a of the cover body 10, each sheet material such as the insole sheet S2, the loose-leaf paper S1, and the cover main body part 34 is placed. Laminated. FIG. 24 is a diagram schematically showing the stacked state of each sheet material stacked on the cover body 10 of the binder 1 in the unfolded state. As shown in the figure, each of the sheet materials such as the inner sheet S2, the loose-leaf paper S1, and the cover body 34 stacked on the cover body 10 has a folding line 127, which is the center of rotation when these sheets are folded in two, and a folding line 127, The positions of the line 107 and the first cover hinge portion 33 in the sheet stacking direction are sequentially spaced apart from each other upward in the sheet stacking direction by the thickness of each sheet material. In this way, the insert sheet S2, the loose-leaf paper S1, and the cover main body 34 stacked on the inner surface 10a of the cover body 10 are folded into two with the center of rotation separated from the inner surface 10a of the cover body 10 in the stacking direction. When this happens, the relative positional relationship of each of these sheet materials with respect to the cover body 10 will change.

For example, when the insole sheet S2 is folded while the upper region 128 and the lower region 129 rotate relative to each other around the fold line 127, during the folding process, the upper region 128 of the insole sheet S2 tries to slide relative to the upper cover portion 15 of the cover body 10 along the binding fixing edge 13 and in a direction away from the height center line L1 (hereinafter referred to as the "height center line departure direction"), and the lower region 129 of the insole sheet S2 tries to slide relative to the lower cover portion 16 of the cover body 10 in the height center line departure direction.

In contrast, in this embodiment, the binding slots 131, 132 in the insole sheet S2 bound to the binder 1 extend along the binding hole side edge 123. Therefore, even when the binding rings 23, 24 of the binding device 20 are inserted through the binding slots 131, 132, the upper region 128 in the insole sheet S2 is allowed to move relative to the upper cover portion 15 in a direction away from the height center line, and the lower region 129 is allowed to move relative to the lower cover portion 16 in a direction away from the height center line, so that the insole sheet S2 can be smoothly folded in half. In other words, the insole sheet S2 in this embodiment has the binding holes 131, 132 that extend along the binding hole side edge 123, which prevents the binding rings 23, 24 from interfering with the edges of the binding holes 131, 132, and allows the insole sheet S2 to be smoothly folded in half at the fold line 127.

The relationship between each of the binding rings 23, 24 of the binder 1 and each of the binding slots 131, 132 in the insole sheet S2 is preferably such that, when the binder 1 is in an unfolded state, each of the binding rings 23, 24 is disposed close to the outer end E2 side of each of the binding slots 131, 132. By doing so, when the binder 1 is in an unfolded state, the insole sheet S2 has little play in the vertical direction of the binder 1 (cover body 10), and the insole sheet S2 is less likely to rattle along the binding tool fixing edge 13. In addition, even if the binding rings 23, 24 move relative to each other toward the inner end E1 of each binding slot 131, 132 when the insole sheet S2 is folded in two along with the cover body 10 of the binder 1, by setting the above positional relationship in advance, it is easy to ensure a sufficient slide stroke so that the binding rings 23, 24 inserted into each binding slot 131, 132 do not collide with the inner end E1.

Also, when the loose-leaf paper S1 is folded by relative rotation of the upper region 108 and the lower region 109 about the folding line 107, the loose-leaf paper The upper area 108 of S1 tends to slide relatively in the direction away from the height center line, and the lower area 109 of the loose-leaf paper S1 tends to slide in the direction away from the height center line with respect to the lower cover part 16 of the cover body 10. Try to slide relatively towards it. On the other hand, each binding elongated hole 111, 112 in the loose-leaf paper S1 bound to the binder 1 in this embodiment extends along the binding hole side 123. Therefore, even when the binding ring parts 23 and 24 of the binding tool 20 are inserted into the binding slots 111 and 112, the upper area 108 of the loose-leaf paper S1 is in the height center line direction away from the upper cover part 15. The loose-leaf paper S1 can be smoothly folded in two. In other words, the loose-leaf paper S1 in this embodiment has the binding elongated holes 111, 112 extending along the binding hole side 103, so that each binding ring portion 23, 24 The loose-leaf paper S1 can be smoothly folded into two along the folding line 107 while suppressing interference with the edges of the sheet. Note that the loose-leaf paper S1 in this embodiment has a long axis relative to the binding hole side 103 such that the outer end E2 of each binding elongated hole 111, 112 is closer to the binding hole side 103 than the inner end E1. L2 is inclined. According to this, when the loose-leaf paper S1 is smoothly folded in half, interference of the binding ring portions 23 and 24 in the binding tool 20 with the edges of the binding slots 111 and 112 can be further suppressed. can do.

The relationship between the binding rings 23, 24 of the binder 1 and the binding holes 111, 112 of the loose-leaf paper S1 is preferably such that, when the binder 1 is in an unfolded state, the binding rings 23, 24 are disposed close to the outer ends E2 of the binding holes 111, 112. In this way, when the binder 1 is in an unfolded state, the loose-leaf paper S1 has little play in the vertical direction of the binder 1 (cover body 10), and the loose-leaf paper S1 is less likely to rattle along the binding tool fixed edge 13. In addition, even if the binding rings 23, 24 move relative to each other toward the inner end E1 of each binding slot 111, 112 when the loose-leaf paper S1 is folded in two by the cover body 10 of the binder 1, by setting the above positional relationship in advance, it is easy to ensure a sufficient slide stroke so that the binding rings 23, 24 inserted into each binding slot 111, 112 do not collide with the inner end E1.

In addition, when the cover main body part 34 is folded by relative rotation of the upper cover area part 31 and the lower cover area part 32 about the first cover hinge part 33, the upper part of the cover body 10 is folded in the folding process. The upper cover area part 31 tends to slide relative to the cover part 15 in the direction away from the height center line, and the lower cover area part 32 tends to slide relative to the lower cover part 16 of the cover body 10 in the height center line direction. Try to slide relatively in the direction of line separation. In contrast, the inner cover body 30 in this embodiment has a pair of first cover attachment parts 35A and second cover attachment parts 35B that are independent of each other, and the first cover attachment parts 35A are connected to the binding fasteners on the cover body 10. The second cover attachment part 35B is attached to the upper cover part 15 so as to be slidable within a predetermined range along the fixed edge 13, and the second cover attachment part 35B is attached to the lower cover part 16 so as to be slidable within a predetermined range along the fixed edge 13. I made it. More specifically, the first cover attachment portion 35A has a first slide elongated hole 353A extending along the binding fastener fixed edge 13, and is received in the first slide elongated hole 353A and is attached to the upper cover portion 15. By relatively displacing the first engaging piece 101A fixed to the upper cover portion 15 along the first slide elongated hole 353A, the second cover attachment portion 35B is attached to the binding fastener fixed edge. 13, and the second engaging piece 101B, which is received in the second slide slot 353B and fixed to the lower cover part 16, is inserted into the second slide slot 353B. By displacing it along the lower cover part 16, it is possible to slide it.

According to this, while changing the relative position of the first slide elongated hole 353A with respect to the first engaging piece 101A fixed to the upper cover part 15 of the cover body 10, the height center line is moved away from the upper cover area part 31. It is permitted to displace the first cover attachment portion 35A relative to the upper cover portion 15 in a direction in which the upper edge 341 approaches the upper edge 11 of the upper cover portion 15. Thereby, the upper cover area portion 31 of the cover main body portion 34 can be displaced relative to the upper cover portion 15 in the direction away from the center line. Similarly, in the second cover attachment part 35B, the height center line is moved away while changing the relative position of the second slide elongated hole 353B with respect to the second engagement piece 101B fixed to the lower cover part 16 of the cover body 10. The second cover mounting portion 35B is displaced relative to the lower cover portion 16 in the direction in which the lower edge 342 of the lower cover area portion 32 in the cover body portion 34 approaches the lower edge 12 in the lower cover portion 16. It is permissible to do so. Thereby, the lower cover area portion 32 of the cover body portion 34 can be relatively displaced with respect to the lower cover portion 16 in the direction away from the center line. As a result, the user can smoothly fold the cover main body part 34 in half at the first cover hinge part 33 in conjunction with the folding operation of the upper cover part 15 and the lower cover part 16 of the cover body 10. I can do it.

Here, the relationship between the first engaging piece 101A fixed to the upper cover part 15 of the cover body 10 and the first slide elongated hole 353A in the first cover attachment part 35A is as follows when the binder 1 is in the unfolded state. It is preferable that each binding ring part 24 is arranged close to the outer end (the end farthest from the height center line L1) in the vertical direction of the first slide elongated hole 353A. Further, the relationship between the second engaging piece 101B fixed to the lower cover part 16 of the cover body 10 and the second slide elongated hole 353B in the second cover attachment part 35B is as follows when the binder 1 is in the unfolded state. It is preferable that each binding ring part 23 is arranged close to the inner end (the end closer to the height center line L1) of the second slide elongated hole 353B in the vertical direction. By doing this, when the binder 1 is in the unfolded state, the play of the cover main body part 34 in the vertical direction of the binder 1 (cover body 10) is small, and the cover main body part 34 is attached to the binding tool fixed edge 13. It becomes less likely to wobble along the line. Furthermore, when the cover main body portion 34 is folded in two along with the cover body 10 of the binder 1, the slide stroke of the first engaging piece 101A that moves relatively toward the inner end of the first slide elongated hole 353A is sufficiently controlled. can be secured. Similarly, a sufficient slide stroke of the second engagement piece 101B that moves relatively toward the inner end of the second slide elongated hole 353B can be ensured. Thereby, when the user switches the binder 1 from the unfolded state to the folded state, the cover main body section 34 can be smoothly folded in half with the first cover hinge section 33 as a boundary.

Further, the relationship between the binding ring insertion openings 37B, 37A in the inner cover body 30 and each binding ring part 23, 24 is such that when the binder 1 is in the unfolded state, the binding ring insertion openings 37B, 37A are outside in the vertical direction. It is preferable that the binding ring portions 23 and 24 are arranged close to each other on the end (the end farthest from the height center line L1) side. By doing so, when the cover main body part 34 of the inner cover body 30 is folded in two together with the cover body 10 of the binder 1, each binding ring part 23, 24 is inserted into each binding ring insertion opening 37B, 37A. Even if the binding ring portions 23 and 24 inserted into the binding ring insertion openings 37B and 37A move relatively toward the inner end side, a sufficient sliding stroke can be ensured so that the binding ring portions 23 and 24 inserted into the binding ring insertion openings 37B and 37A do not collide with the inner end.

Note that when the cover main body part 34 is folded in half as described above, the first cover attachment part 35A, the second upper cover hinge part 36A, and the upper cover area part 31 of the cover main body part 34 are integrally folded into the cover body 10. It is displaced relative to the upper cover portion 15 in the direction away from the height center line. Further, the second cover mounting portion 35B, the second lower cover hinge portion 36B, and the lower cover region portion 32 of the cover body portion 34 are integrally arranged in the height center line direction away from the upper cover portion 15 of the cover body 10. relative displacement to . On the other hand, since the second upper cover hinge part 36A and the second lower cover hinge part 36B in the inner cover body 30 are provided independently, the height of the upper cover area part 31 and the lower cover area part 32 is Each sliding movement in the direction away from the center line becomes even smoother.

When the cover body 34 of the inner cover body 30 is folded, the upper cover area 31 (first cover mounting portion 35A) is displaced relative to the upper cover portion 15 in the direction away from the height center line, causing a change in the relative positional relationship along the binding device fixed edge 13 between each binding ring portion 24 of the second binding device 20B fixed to the upper cover portion 15 and the binding ring insertion opening 37A. Similarly, the lower cover area 32 (second cover mounting portion 35B) is displaced relative to the lower cover portion 16 in the direction away from the height center line, causing a change in the relative positional relationship along the binding device fixed edge 13 between each binding ring portion 23 of the first binding device 20A fixed to the lower cover portion 16 and the binding ring insertion opening 37B. In contrast, in the inner cover body 30 of this embodiment, the vertical dimension (height dimension) of each binding ring insertion opening 37A, 37B in the direction along the binding tool fixing edge 13 is determined so that the edges of each binding ring insertion opening 37A, 37B do not interfere (clash) with each binding ring portion 23, 24 when the first cover mounting portion 35A and the second cover mounting portion 35B slide along the binding tool fixing edge 13. By adjusting the vertical dimension of each binding ring insertion opening 37A, 37B in this way, when the cover main body portion 34 of the inner cover body 30 is folded in half, the edges of each binding ring insertion opening 37A, 37B are prevented from colliding with each binding ring portion 23, 24, making it possible to perform a smooth folding operation.

<Embodiment 2>
Next, the binder 1 according to the second embodiment will be explained. The basic structure of the binder 1 according to the second embodiment is the same as the binder 1 according to the A4 size described in the first embodiment, except that the binder 1 is A5 size. Hereinafter, the same reference numerals will be given to the same components as in the first embodiment in the binder 1 according to the second embodiment, and the explanation thereof will be omitted.

FIG. 25 is a perspective view of the binder 1 according to the second embodiment in an expanded state.
FIG. 26 is a perspective view of the binder 1 according to the second embodiment in a folded state.
FIG. 27 is a diagram showing the folding operation status of the binder 1 according to the second embodiment.
FIG. 28 is a front view of the binder 1 according to the second embodiment in an expanded state.
FIG. 29 is a rear view of the binder 1 according to the second embodiment in an expanded state.
FIG. 30 is a left side view of the binder 1 according to the second embodiment in an expanded state.
FIG. 31 is a right side view of the binder 1 according to the second embodiment in an expanded state.
FIG. 32 is a plan view of the binder 1 according to the second embodiment in an expanded state.
FIG. 33 is a bottom view of the binder 1 according to the second embodiment in an expanded state.
FIG. 34 is a front view of the binder 1 when the inner cover body 30 according to the second embodiment is placed in a facing-open position.
FIG. 35 is a front view of the binder 1 when the inner cover body 30 according to the second embodiment is placed in a facing-open position.
FIG. 36 is a diagram illustrating a state in which the loose-leaf sheets S1 bound by the binding device 20 according to the second embodiment are stacked on the inner cover body 30 in a two-page spread state.
FIG. 37 is a front view of loose-leaf paper S1 (A5 size) according to the second embodiment.

The binder 1 according to the second embodiment, like the first embodiment, includes a cover body 10, a ring-type binding device 20 fixed to the cover body 10, an inner cover body 30 attached to the cover body 10, and the like. The binding device 20 can bind A5-sized loose-leaf paper S1 and an insole sheet S2 as objects to be bound. The binding device 20 includes the first binding device 20A and the second binding device 20B described in Figs. 11 to 19, like the first embodiment, and these are provided on the cover body 10. In the binder 1 according to the present embodiment, the cover body 10, the binding device 20, the inner cover body 30, the loose-leaf paper S1, and the insole sheet S2 included in the binder 1 have the same technical features as the binder 1 according to the first embodiment. Therefore, according to the binder 1 according to the second embodiment, it is possible to provide the loose-leaf paper S1 and the insole sheet S2 suitable for the binder 1, which are excellent in convenience both when in use and when not in use.

The above describes an embodiment of the binder (file) with binding device according to the present invention, but the present invention is not limited to the above embodiment and can be modified as appropriate without departing from the spirit of the invention. For example, in embodiment 1, an A4-sized binder 1 is described, and in embodiment 2, an A5-sized binder 1 is described, but the present invention can of course be applied to binders of other sizes.

In addition, the binder 1 does not need to be bound with the loose-leaf sheets S1 and the insert sheets S2, which are the bound materials.

Further, the minimum structural unit of the binder 1 only needs to include the cover body 10 and the binding tool 20, and does not need to include the inner cover body 30. Furthermore, in the embodiment described above, an example was explained in which the first binding device 20A and the second binding device 20B are arranged in the upper cover portion 15 and the lower cover portion 16 of the cover body 10, respectively, as the binding device 20 of the binder 1. These numbers are not particularly limited either. That is, the upper cover portion 15 may be provided with a plurality of binding tools, and the lower cover portion 16 may be provided with a plurality of binding tools. That is, the form of the binding tool is not particularly limited as long as the base part on which the binding ring part is installed is arranged so as not to straddle the cover hinge part 17 of the cover body 10. Therefore, for example, a mode in which one or more binding tools are installed only on either the upper cover section 15 or the lower cover section 16 of the cover body 10 of the binder 1 also belongs to the category of the binder according to the present invention. be. FIG. 38 is a front view of a binder 1 according to a modification. The binder 1 shown in FIG. 38 has a binding device 20 (second binding device 20B) arranged only on the upper cover portion 15 of the cover body 10. Similar to the binder 1 according to the first and second embodiments described above, this binder 1 also allows the posture to be switched between the unfolded state and the folded state, and is easy to use both when in use and when not in use. Binder 1 with excellent properties can be realized. On the other hand, if the base part is disposed straddling the cover hinge part 17 of the cover body 10, the base part has a base hinge part (not shown) or a base part at a position corresponding to the cover hinge part 17 of the base part. It may be formed to have a flexible portion (not shown) and to be bent in accordance with the rotation of the cover body 10.

<Explanation regarding the design>
This specification also discloses a design for a binder with a binding device 1 as shown below. This application intends to acquire rights to the entire design or partial design by filing a conversion application to a design application. In addition, in FIGS. 39 to 62, the entire binder 1 is drawn with solid lines, but the drawings include not only the entire design but also the partial design claimed for a part of the binder. In addition, in the design drawings disclosed below, even if loose-leaf paper or insole sheets are not bound in the binder 1, and even if an inner cover body is not provided, the overall appearance of the product implemented in the binder 1 is Aesthetic appearance is not affected. Further, the overall aesthetic appearance of the binder 1 is not affected by the detailed shape of each part constituting the binding tool of the binder 1. The basic configuration, in which a pair of binding tools are arranged along one side of the bifoldable binder 1 so as to face each other when the binder 1 is folded in half, is new to consumers. It can be understood as a novel binder shape, and it creates a sense of beauty through its visual appearance.

Figures 39 to 44 are six-sided views of the A4-sized binder 1 in an unfolded state, as described primarily in embodiment 1. Specifically, the six-sided views are of the A4-sized binder 1 described in embodiment 1 in an unfolded state with the binding device disposed on the left side, as viewed from the inner cover body 30 in a closed state. Figure 39 is a front view, Figure 40 is a rear view, Figure 41 is a plan view, Figure 42 is a bottom view, Figure 43 is a left side view, and Figure 44 is a right side view. Figure 45 is a perspective view of the A4-sized binder 1 in an unfolded state. Figure 46 is a perspective view showing a state in which the A4-sized binder 1 is being switched from an unfolded state to a folded state. Figure 47 is a perspective view of the A4-sized binder 1 in a folded state. Figure 48 is a front view of the A4-sized binder 1 when the inner cover body is in a double-open position. Figure 49 is a front view of an A4-sized binder 1 with the inner cover in an open position, loose-leaf paper placed on the left side of the spread, and an insole sheet placed on the right side of the spread.

Figures 50 to 55 are six-view diagrams of the A4-sized binder 1 described primarily in embodiment 1 in a folded state. Specifically, these are six-view diagrams of the A4-sized binder 1 described in embodiment 1 folded in half with the binding device placed on the upper side, as viewed from the lower cover portion 16 of the cover body 10, as viewed from the front. Figure 50 is a front view, Figure 51 is a rear view, Figure 52 is a plan view, Figure 53 is a bottom view, Figure 54 is a left side view, and Figure 55 is a right side view.

56 to 61 are six-sided views of the A5 size binder 1 mainly described in the second embodiment in the unfolded state. Specifically, in the A5 size binder 1 described in Embodiment 2, the binder 1 in the unfolded state with the binding tool placed on the left side is viewed from the inner cover body 30 side in the closed state. It is a six-sided view when doing so. 56 is a front view, FIG. 57 is a rear view, FIG. 58 is a plan view, FIG. 59 is a bottom view, FIG. 60 is a left side view, and FIG. 61 is a right side view. FIG. 62 is a perspective view of the A5 size binder 1 in the unfolded state. FIG. 63 is a perspective view showing a state in which the A5 size binder 1 is being switched from the unfolded state to the folded state. FIG. 64 is a perspective view of the A5 size binder 1 in a folded state. FIG. 65 is a front view of the inner cover body of the A5 size binder 1 in a facing-open position. FIG. 66 is a front view of an A5 size binder 1 in which the inner cover body is in a facing-open position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet.

67 to 72 are six-sided views of the A5 size binder 1 mainly described in the second embodiment in a folded state. Specifically, in the A5 size binder 1 described in Embodiment 2, the binder 1 is folded in half with the binding tool placed on the upper side, as viewed from the lower cover section 16 side of the cover body 10. FIG. 6 is a six-sided view when viewed from the front. 67 is a front view, FIG. 68 is a rear view, FIG. 69 is a plan view, FIG. 70 is a bottom view, FIG. 71 is a left side view, and FIG. 72 is a right side view.

73 to 89 mainly show partial design drawings of the A4 size binder 1 described in the first embodiment. In FIGS. 73 to 89, parts that can be understood as partial designs are shown by solid lines, and other parts are shown by broken lines. The one-dot chain line indicates the boundary between a portion that can be understood as a partial design and other portions. 73 to 78 are six side views of the A4 size binder 1 in the unfolded state. Specifically, in the A4 size binder 1 described in Embodiment 1, the binder 1 is unfolded with the binding tool placed on the left side and viewed from the inner cover body 30 side in the closed state. It is a six-sided view when doing so. 73 is a front view, FIG. 74 is a rear view, FIG. 75 is a plan view, FIG. 76 is a bottom view, FIG. 77 is a left side view, and FIG. 78 is a right side view. FIG. 79 is a perspective view of the A4 size binder 1 in the unfolded state. FIG. 80 is a perspective view showing a state in which the A4 size binder 1 is being switched from the unfolded state to the folded state. FIG. 81 is a perspective view of the A4 size binder 1 in a folded state. FIG. 82 is a front view of the inner cover body of the A4 size binder 1 in a facing position. FIG. 83 is a front view of an A4 size binder 1 in which the inner cover body is in a facing position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet. 84 to 89 are six views of the A4 size binder 1 in a folded state. Specifically, in the A4 size binder 1 described in Embodiment 1, the binder 1 is folded in half with the binding tool placed on the upper side, as viewed from the lower cover section 16 side of the cover body 10. FIG. 6 is a six-sided view when viewed from the front. 84 is a front view, FIG. 85 is a rear view, FIG. 86 is a plan view, FIG. 87 is a bottom view, FIG. 88 is a left side view, and FIG. 89 is a right side view.

90 to 106 mainly show partial design drawings of the A5 size binder 1 described in the second embodiment. In FIGS. 90 to 106, parts that can be understood as partial designs are shown by solid lines, and other parts are shown by broken lines. The one-dot chain line indicates the boundary between a portion that can be understood as a partial design and other portions. 90 to 95 are six views of the A5 size binder 1 in the unfolded state. Specifically, in the A5 size binder 1 described in Embodiment 2, the binder 1 in the unfolded state with the binding tool placed on the left side is viewed from the inner cover body 30 side in the closed state. It is a six-sided view when doing so. 90 is a front view, FIG. 91 is a rear view, FIG. 92 is a plan view, FIG. 93 is a bottom view, FIG. 94 is a left side view, and FIG. 95 is a right side view. FIG. 96 is a perspective view of the A5 size binder 1 in the unfolded state. FIG. 97 is a perspective view showing a state in which the A5 size binder 1 is being switched from the unfolded state to the folded state. FIG. 98 is a perspective view of the A5 size binder 1 in a folded state. FIG. 99 is a front view of the inner cover body of the A5 size binder 1 in a facing-open position. FIG. 100 is a front view of an A5 size binder 1 in which the inner cover body is in a facing-open position, loose-leaf paper is placed on the left side of the facing sheet, and an insole sheet is placed on the right side of the facing sheet. 101 to 106 are six views of the A5 size binder 1 in a two-folded state. Specifically, in the A5 size binder 1 described in Embodiment 2, the binder 1 is folded in half with the binding tool placed on the upper side, as viewed from the lower cover section 16 side of the cover body 10. FIG. 6 is a six-sided view when viewed from the front. 101 is a front view, FIG. 102 is a rear view, FIG. 103 is a plan view, FIG. 104 is a bottom view, FIG. 105 is a left side view, and FIG. 106 is a right side view.

1... Binder 10... Cover body 20... Binding tool 30... Inner cover body S1... Loose-leaf paper S2... Insole sheet

Claims (4)

a cover body, a binding tool fixed to a binding tool fixing edge extending in a vertical direction of the cover body;
A binder with a binding device comprising:
the cover body includes a cover hinge portion extending across the entire width of the cover body in a direction perpendicular to the binding tool fixing edge, and an upper cover portion and a lower cover portion that are divided into upper and lower portions by the cover hinge portion and are rotatably connected via the cover hinge portion,
The cover hinge portion is a boundary between the upper cover portion and the lower cover portion, and the cover hinge portion is a boundary between the upper cover portion and the lower cover portion, so that the cover can be switched between an unfolded state and a folded state.
The binder includes a first binder provided on the upper cover portion and a second binder provided on the lower cover portion,
The first binding tool and the second binding tool are formed so as to be mutually engageable.
Binder with binding fixture. The first binder and the second binder each have one or more base portions extending along the respective binder fixing edges of the upper cover portion and the lower cover portion, and a binding ring portion provided on the base portion and capable of binding an object to be bound having a binding hole formed therein.
2. The binder with binding device according to claim 1. When the cover body is switched from the unfolded state to the folded state, the cover body is folded in half by mutually engaging the binding ring part of the first binding tool and the binding ring part of the second binding tool. further comprising an engagement means for maintaining the state.
The binder with a binding device according to claim 2. The engagement means is provided in one of the binding ring portions of the first binding tool and the second binding tool, and is an engaging member that protrudes from the binding ring portion toward the extending direction of the fixed edge of the binding device. including joints,
When switching the cover body from an unfolded state to a folded state, the engaging portion engages with a back surface portion of the other binding ring portion of the first binding tool and the second binding tool.
The binder with a binding device according to claim 3.

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