JP2019081345A - Holder and method of using holder - Google Patents

Abstract

To provide a holder capable of taking out an article easily, and a method of using the holder.SOLUTION: There is provided a holder 1 with a cover capable of storing a rectangular article having a predetermined sheet size of a predetermined specification, the holder 1 comprising a rectangular back sheet 11 having a size corresponding to the predetermined sheet size, a rectangular front sheet 12 facing the back sheet 11, a bottom part and both-side parts of the front sheet 12 being coupled to a bottom part and both-side parts of the back sheet 11, an extension sheet 13 provided extending upward from a top part of the front sheet 12, an opening formed between the back sheet 11 and front sheet 12, and a sheet-like hinge cover 14 that opens and closes the opening with the top part of the back sheet 11 being taken as a base end part, the length from an opening/closing end part of the hinge cover 14 to the top part of the back sheet 11 is longer than the length of the extension sheet 13 in its extending direction, and a sum of the length of the front sheet 12 in its vertical direction and the length of the extension sheet 13 in its extending direction is shorter than the length of a stored article 2 in its vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a holder with a lid and a method of using the holder.

Conventionally, a holder with a lid is used.
The holder comprises each rectangular back sheet and front sheet. The back sheet and the front sheet have the same size as each other, and face each other. The bottom and both sides of the back sheet and the front sheet are connected to each other. As a result, the holder has a bag shape.

The holder further comprises a hinge lid. The hinge lid rotates about the top of the back sheet to open and close the opening of the bag (see Patent Document 1).
In the case of the holder described in Patent Document 1, the hinge lid is provided with a locking piece, and the front sheet is provided with a locking hole. The hinge lid can be kept closed by inserting the locking piece of the hinge lid into the locking hole of the front sheet.

  The holder is configured to be able to store, for example, an A4-sized article according to the JIS standard. In the case of a holder corresponding to the A4 size, since the back sheet and the front sheet are respectively larger than the A4 size rectangle, the entire A4 size article accommodated in the holder is covered. Therefore, even if the hinge lid is opened, the article is not exposed from the holder.

  In the case of the holder described in Patent Document 1, the middle to the top of each side of the back sheet and the front sheet are not connected anywhere. When the hinge lid is open, the user may select a portion from the middle of the back sheet in the vertical direction to the top and a portion from the middle of the front sheet to the middle in the vertical direction (“flap” in Patent Document 1) It can be flexed to tip outwards. Then, since the articles contained in the holder are exposed from the holder, the user can easily take out the articles from the holder. The bent back sheet and front sheet each return to their original shape by elasticity.

JP 2001-63721 A

When the article is taken out of the holder without bending any of the back sheet and the front sheet, the user needs to insert a hand inside the holder, so it is difficult to take out the article from the holder. In other words, in order to easily remove the article from the holder, the user needs to bend the front sheet or the back sheet of the holder one by one.
In the holder described in Patent Document 1, the top side portion of the front sheet is provided with a notch for partially exposing the articles contained in the holder, but it is insufficient for improvement of usability. is there.

  The present invention has been made in view of such circumstances, and a main object of the present invention is to provide a holder and a use method of the holder which can easily take out an article.

  The holder according to the present embodiment is a holder with a lid capable of containing a rectangular article having a predetermined paper size according to a predetermined standard, wherein the rectangular back sheet having a size corresponding to the predetermined paper size, and the back surface A rectangular front sheet facing the sheet, the bottom side and the both sides connected to the bottom side and the both sides of the back sheet, and the extension extending toward the top side from the top side of the front sheet An opening formed between the back sheet and the front sheet, and a sheet-like hinge lid which opens and closes the opening with the top side of the back sheet as a base end portion; The length from the end to the top side of the back sheet is longer than the length in the extending direction of the extended sheet, and the length of the front sheet in the upper direction and the length in the extending direction of the extended sheet Sum was housed Characterized in that less than said circumferential direction length of the serial article.

  In the holder according to the present embodiment, the bottom side portion and the both side portions of the front sheet are integrally provided on the bottom side portion and the both side portions of the back sheet, and both sides of the back sheet are provided. Each of the sections is characterized in that a notch is provided adjacent to the top end of the side portion of the front sheet.

  In the method of using a holder with a lid according to the present embodiment, in the method of using a holder with a lid, the holder faces a rectangular back sheet and the back sheet, and the bottom side and both side parts are the bottom side of the back sheet. And a rectangular front sheet connected to both side parts, an extending sheet extended from the top side of the front sheet to the top side, and an opening formed between the back sheet and the front sheet And a sheet-like hinge lid which opens and closes the opening with the top side of the back sheet as a base end, and the length from the open and close end of the hinge lid to the top side of the back sheet is the extension When the opening is closed by the hinge lid longer than the length in the extension direction of the sheet, the outer surface of the hinge lid is brought into contact with the inner surface of the extension sheet.

  In the present embodiment, when an article having a predetermined sheet size is accommodated in the holder, the back sheet covers the entire article. On the other hand, the front sheet and the extension sheet partially cover the article and do not cover one side of the article. That is, when the hinge lid is opened, one side of the article is exposed from the holder. Therefore, the user can easily take out the article without bending the extended sheet or the back sheet. Therefore, the holder is easy to use.

  When an article smaller than a predetermined paper size is accommodated in the holder, the front sheet and the extension sheet may entirely cover the article. When the article is not exposed from the holder even if the hinge lid is opened, the user can easily take out the article by bending the extended sheet or the back sheet so as to fall outward.

  In the present embodiment, both side portions of the front sheet are integrally provided on both side portions of the back sheet. Therefore, it is possible to realize a holder with a short (so-called thin) length in the opposite direction of the back sheet and the front sheet.

  Each side of the back sheet is provided with a notch. The notches provided on each side of the back sheet improve the flexibility of the back sheet in the vicinity of the imaginary line connecting the notches. Therefore, the user can easily bend the back sheet.

In the present embodiment, the length of the extending sheet in the extending direction is shorter than the length from the open / close end of the hinge lid to the top side of the back sheet.
The bottom side and both sides of the front sheet are connected to the bottom and both sides of the back sheet. On the other hand, there is no connection from the middle to each side of each side of the back sheet.
The length of the unconnected portion of each side portion of the back sheet is never shorter than the length in the extending direction of the extending sheet.

Thus, if the back sheet, the extension sheet and the hinge lid each consist of, for example, the same sheet, the flexibility of the extension sheet is lower than the flexibility of the back sheet and the hinge lid.
The user can easily close the hinge lid while bringing the outer surface of the hinge lid into contact with the inner surface of the extending sheet by appropriately bending the highly flexible back sheet or hinge lid.
Since the flexibility of the extension sheet is low, it is possible to prevent the contact between the hinge lid and the extension sheet from being released by bending the extension sheet unnecessarily. Therefore, the hinge lid can be maintained in the closed state, for example, without providing the locking pieces and the locking holes in the hinge lid and the extension sheet.

  The outer surface of the open / close end of the hinge lid is covered by the extension sheet. Therefore, for example, when the bottom of the holder with the hinge lid closed is directed to the bottom of the crucible and the holder is put in the crucible, there is a risk that the open / close end of the hinge lid may catch on other objects housed in the crucible or crucible. Absent. Therefore, it is easy to accommodate the holder in the bag. Furthermore, it is possible to prevent the hinge lid from being unnecessarily opened by hooking the open / close end of the hinge lid to the rod or another object contained in the rod.

  Further, the user can easily release the contact between the hinge lid and the extension sheet by appropriately bending the highly flexible back sheet or the hinge lid. That is, the hinge lid can be easily opened. Therefore, the user can easily take out the article.

  According to the holder of the present embodiment and the method of using the holder, the article can be easily taken out.

It is a front view showing a holder (hinge lid and open) concerning an embodiment. It is a front view which shows the holder (hinge lid and closure) which concerns on embodiment. It is a rear view showing a holder. It is an expanded view of a holder. It is a perspective view showing a holder.

  Hereinafter, the present invention will be described in detail based on the drawings showing the embodiments.

FIG. 1 is a front view showing a holder according to the embodiment.
In the drawings, reference numeral 1 denotes a holder, and the holder 1 is a holder with a lid capable of containing an article 2.
The article 2 has a rectangular shape having a predetermined sheet size according to a predetermined standard. Below, A4 size of JIS standard is illustrated as a predetermined paper size of a predetermined standard. Specific examples of the article 2 include, for example, a sheet of A4 size, a bundle of a plurality of sheets of A4 size, or a thin booklet of A4 size.

The holder 1 includes a back sheet 11, a front sheet 12, an extending sheet 13, and a hinge lid 14.
FIG. 2 is a front view showing the holder 1. FIG. 3 is a rear view showing the holder 1. The holder 1 shown in each of FIGS. 1 and 3 has the hinge lid 14 open, and the holder 1 shown in FIG. 2 has the hinge lid 14 closed.

The back sheet 11 has a rectangular shape. The longitudinal length of the back sheet 11 is longer than the longitudinal length of the A4 size sheet. The short side length L11 of the back sheet 11 is longer than the short side length of the A4 size sheet. In the present embodiment, the longitudinal and lateral lengths of the back sheet 11 are about 5% more than the A4 size.
The front sheet 12 has a rectangular shape. The length of the front sheet 12 in the longitudinal direction is the same as the length of the back sheet 11 in the longitudinal direction. The length L12 in the short direction of the front sheet 12 is shorter than the length L11 of the back sheet 11, and is about 60% of the length L11 of the back sheet 11 in the present embodiment.

The front sheet 12 faces the back sheet 11. One long side of the front sheet 12 is connected to one long side of the back sheet 11. The two short sides of the front sheet 12 are connected to the two short sides of the back sheet 11. As a result, the back sheet 11 and the front sheet 12 form a rectangular bag 10 in which three sides are connected.
The long sides of the back sheet 11 and the front sheet 12 connected to each other are the bottom of the bag 10. Each short side portion of each of the back sheet 11 and the front sheet 12 is a side portion of the bag 10.
The bag 10 has an opening 100 (see FIG. 5 described later). The opening 100 is formed between the back sheet 11 and the front sheet 12.

In the present embodiment, the bottom portions of the back sheet 11 and the front sheet 12 are integrally provided to each other. Further, both side portions of the back sheet 11 and the front sheet 12 are provided integrally with each other. Hence, the bag 10 has no gusset.
In the case of the bag 10 without the gusset, it is desirable that the notches 111 and 111 are provided on both sides of the back sheet 11. Further, it is desirable that notches 121 and 121 are provided at both ends of the bottom side of the front sheet 12.
The notch 111 is adjacent to the top end of the side of the front sheet 12.
The notches 111 and 121 are respectively provided in an arc shape.

  Below, the long side part which opposes the bottom side part of each of the back sheet 11 and the front sheet 12 is called a top side part. The length of the front sheet 12 in the vertical direction is the length L12 of the front sheet 12.

  The extended sheet 13 has a rectangular shape. The length in the longitudinal direction of the extension sheet 13 is generally the same as the length in the longitudinal direction of the back sheet 11, but is somewhat short. The length L13 in the short direction of the extended sheet 13 is shorter than the length L11 of the back sheet 11, and is about 15% of the length L11 of the back sheet 11 in the present embodiment.

The extending sheet 13 extends from the top side of the front sheet 12 toward the top side, with the long sides of the extending sheet 13 oriented along the top side of the front sheet 12. The length in the extending direction of the extending sheet 13 is the length L13 of the extending sheet 13.
The sum of the length L12 of the front sheet 12 and the length L13 of the extended sheet 13 is shorter than the length in the short direction of the A4 size sheet, and in the present embodiment, the width direction of the A4 size sheet It is about 80% of the length.

The hinge lid 14 has a rectangular sheet shape. The longitudinal length of the hinge lid 14 is the same as the longitudinal length of the back sheet 11. The length L14 in the short direction of the hinge lid 14 is shorter than the length L11 of the back sheet 11, and longer than the length L13 of the extended sheet 13. In the present embodiment, the length L14 of the hinge lid 14 is about 35% of the length L11 of the back sheet 11.
The length L14 of the hinge lid 14 is preferably 30 mm or more.

  The hinge lid 14 opens and closes the opening 100 of the bag 10 with the top side of the back sheet 11 as the base end. For this purpose, one long side of the hinge lid 14 is connected to the top side of the back sheet 11 so that the hinge lid 14 can be pivoted about the top of the back sheet 11. The other long side of the hinge lid 14 is the open / close end of the hinge lid 14.

FIG. 4 is a development view of the holder 1.
The holder 1 is formed by bending the sheet 3 shown in FIG. 4 at an appropriate position.
The sheet 3 has appropriate flexibility and elasticity, and is made of, for example, a synthetic resin.
The sheet 3 has a rectangular shape. The sheet 3 is provided with folds 31 to 33. In FIG. 4, folds 31 to 33 are indicated by mountain fold lines (dotted line). In FIG. 1, the folds 32, 33 are shown by valley fold lines (broken lines). In FIG. 3, the folds 32, 33 are indicated by mountain fold lines.
Each of the folds 31 to 33 is parallel to the short side of the sheet 3. The folds 31 and 32 are provided at positions where the sheet 3 is divided into three.

  An area surrounded by the folds 31 and 32 and the two long sides of the sheet 3 becomes the back sheet 11 by the sheet 3 being folded at the folds 31 and 32. Further, the area surrounded by the fold 31 on the right side, the short side on the right side of the sheet 3 and the two long sides of the sheet 3 in FIG. 4 becomes the front sheet 12 and the extended sheet 13. Furthermore, a region surrounded by the fold 32 on the left side, the short side on the left side of the sheet 3 and the two long sides on the sheet 3 in FIG.

The sheet 3 in the present embodiment is provided with sticking pieces 122, 122. Each pasting piece 122 has a rectangular shape, and the long side of the pasting piece 122 extends from the side of the front sheet 12 in a direction along the side of the front sheet 12. As shown in FIG. 4, a fold 34 is provided at the boundary between the front sheet 12 and the sticking piece 122. Fold line 34 is indicated by a mountain fold line.
The sticking pieces 122 and 122 contact the back sheet 11 by folding the sheet 3 at the fold lines 31, 34 and 34. The sticking piece 122 is stuck to the back sheet 11 by, for example, welding. As a result, the side portions of the back sheet 11 and the front sheet 12 are connected to each other.
Note that both side portions of the back sheet 11 and the front sheet 12 may be directly attached to each other.

A fold 33 is provided on the hinge lid 14. By the hinge lid 14 being bent at the fold 33, the area between the folds 32, 33 of the hinge lid 14 functions as a gusset.
The fold 33 may not be provided, and a plurality of folds 33, 33,... May be provided. When the folds 33, 33,... Are provided, the width of the gusset can be changed by bending the different folds 33.

The sheet 3 is flexible. However, since the extension sheet 13 has a short length L13 of the extension sheet 13, the extension sheet 13 is not easily bent in the direction in which the straightness of the short side portion of the extension sheet 13 changes.
On the other hand, since the length L14 of the hinge lid 14 is L14> L13, the hinge lid 14 is easily bent in the direction in which the straightness of the short side of the hinge lid 14 changes, as compared with the extended sheet 13.

Hereinafter, a portion of the back sheet 11 not facing the front sheet 12 is referred to as a flexible portion of the back sheet 11.
The length L of the flexible portion of the back sheet 11 in the direction along the side portion is represented by L = L11-L12. Since the lengths L11 and L12 of the back sheet 11 and the front sheet 12 are L11> L12 + L13, L11−L12> L13, that is, L> L13. Therefore, the flexible portion of the back sheet 11 is more easily bent in the direction in which the curvature of the side portion of the back sheet 11 changes, as compared with the extension sheet 13.
Moreover, since the back sheet 11 is provided with the notches 111 and 111, the flexibility of the back sheet 11 in the vicinity of the imaginary line connecting the notches 111 and 111 is further high. Therefore, the user can easily bend the back sheet 11.

  The portion where the back sheet 11 and the front sheet 12 are connected has low flexibility. However, since the front sheet 12 is provided with the notches 121 and 121, both ends of the bottom side of the back sheet 11 and the front sheet 12 are not connected to each other. Accordingly, both ends of the bottom of each of the back sheet 11 and the front sheet 12 are relatively flexible.

  When the holder 1 as described above is used, the user opens the hinge lid 14 so that the long side (and short side) of the article 2 is along the bottom side (and both sides) of the bag 10. , Store the item 2 in the bag 10.

FIG. 5 is a perspective view showing the holder 1. The holder 1 shown in FIG. 5 is in a state in which the hinge lid 14 is open and the flexible portion of the back sheet 11 is turned outward.
When the articles 2 are stored in the bag 10, the user may turn the back sheet 11 outward as shown in FIG. When the back sheet 11 falls outward, the hinge lid 14 moves away from the opening 100 of the bag 10, and the position of the opening 100 of the bag 10 can be easily identified, so that the article 2 can be easily stored in the bag 10.
When the back sheet 11 can not be turned outward (for example, when the holder 1 is placed on a desk and used with the back sheet 11 facing down), the user turns the extension sheet 13 outward. May be
The back sheet 11 (or the extension sheet 13) which is bent by being turned outward is naturally returned to the original shape by the elasticity of the back sheet 11 (or the extension sheet 13).

After storing the article 2 in the bag 10, the user brings the outer surface of the hinge lid 14 into contact with the inner surface of the extending sheet 13. As a result, the hinge lid 14 closes the opening 100 of the bag 10. In order for the hinge lid 14 to contact the extension sheet 13, the sheet 3 relates to the back sheet 11, the front sheet 12, the extension sheet 13, and the lengths L11, L12, L13, L14 of the hinge lid 14, L11-( It is designed such that L12 + L13) <L14 holds.
When the hinge lid 14 is closed, the length in the vertical direction of the portion where the extension sheet 13 and the hinge lid 14 overlap is preferably 10 mm or more.

The back sheet 11 and the hinge lid 14 (especially the back sheet 11) have high flexibility. Therefore, the user can easily close the hinge lid 14 while bringing the outer surface of the hinge lid 14 into contact with the inner surface of the extension sheet 13 by appropriately bending the back sheet 11 or the hinge lid 14.
The user may close the hinge lid 14 and then release the extending sheet 13 in a state in which the extending sheet 13 is bent to the outside. Then, the extension sheet 13 returns to its original shape by elasticity, and the inner surface of the extension sheet 13 contacts the outer surface of the hinge lid 14.

The elasticity of the sheet 3 biases the closed hinge lid 14 in the direction in which the hinge lid 14 is opened. However, since the outer surface of the hinge lid 14 is in contact with the inner surface of the extension sheet 13, the hinge lid 14 is pressed against the extension sheet 13 by the elasticity of the sheet 3.
Since the flexibility of the extension sheet 13 is low, it is suppressed that the contact between the hinge lid 14 and the extension sheet 13 is released by unnecessary bending of the extension sheet 13 to which the hinge lid 14 is pressed. Can. Therefore, the hinge lid 14 can be maintained in the closed state without providing, for example, the locking pieces and the locking holes in the hinge lid 14 and the extension sheet 13.

  The outer surface of the open / close end of the hinge lid 14 is covered by the extension sheet 13. Therefore, for example, when the bottom side of the holder 1 with the hinge lid 14 closed is directed to the bottom of the crucible and the holder 1 is put in the crucible, the open end of the hinge lid 14 to the other object housed in the crucible or the cage There is no risk of being caught. Therefore, it is easy to accommodate holder 1 in a bag. Furthermore, it is possible to prevent the hinge lid 14 from being opened unnecessarily by hooking the open / close end of the hinge lid 14 to the rod or to another object contained in the rod.

  When taking out the article 2, the user bends the back sheet 11 so as to fall outward or bends the hinge lid 14 so as to expand outward, so that the hinge lid 14 and the extension sheet 13 are separated. The contact can be easily released (see FIG. 5). That is, the hinge lid 14 can be easily opened. Therefore, removal of the article 2 from the holder 1 is easy.

The user can release the contact between the hinge lid 14 and the extension sheet 13 and open the hinge lid 14 by bending the extension sheet 13 so as to be folded outward.
In this manner, the user does not necessarily have to bend the highly flexible back sheet 11 or the hinge lid 14, and may bend the less flexible extension sheet 13. That is, the degree of freedom in how to use the holder 1 is high.

The back sheet 11 covers the whole of the article 2, but the front sheet 12 and the extension sheet 13 cover other than the long side of the top side of the article 2. That is, when the hinge lid 14 is opened, the long side of the top side of the article 2 is exposed to the outside from the holder 1. The reason is that the sum of the length L12 of the front sheet 12 and the length L13 of the extended sheet 13 is shorter than the length in the vertical direction of the stored article 2 (the length in the short direction of the article 2) It is.
Therefore, the user can easily take out the article 2 from the bag 10 without bending the back sheet 11 or the extension sheet 13 one by one. Therefore, the holder 1 is easy to use.

  When an article smaller than the article 2 is accommodated in the holder 1, the front sheet 12 and the extension sheet 13 may cover the entire article. When the article is not exposed from the holder 1 when the hinge lid 14 is opened, the user can easily take out the article by bending the back sheet 11 or the extension sheet 13 so as to fall outward.

  By the way, since the bag 10 does not have a gusset, the holder 1 is thin. When the article 2 is a thick article (for example, a bundle of a plurality of sheets or a thick booklet) in the opposite direction of the back sheet 11 and the front sheet 12, each of the back sheet 11 and the front sheet 12 is enlarged to bulge outward. Flex.

  Since the front sheet 12 is provided with the notches 121 and 121, the vicinity of the notches 121 and 121 of the bag 10 has high flexibility. Therefore, the vicinity of the notches 121 and 121 of the bag 10 is likely to spread in the opposing direction of the back sheet 11 and the front sheet 12. Therefore, even if the back sheet 11 and the front sheet 12 are largely bent so as to bulge outward, loads are hardly applied to both ends of the bottom side of the back sheet 11 and the front sheet 12 respectively.

  As a result of the above, breakage of the holder 1 caused by housing the thick article 2 in the holder 1 can be suppressed.

The predetermined paper size is not limited to A4 size, and may be, for example, B5 size. Further, the predetermined standard is not limited to the JIS standard, and may be, for example, an international standard.
The bag 10 may have a gusset. In this case, the bottom sides of the back sheet 11 and the front sheet 12 are connected to each other via a gusset. Similarly, both side portions of the back sheet 11 and the front sheet 12 are connected to each other via a gusset. In the case of the bag 10 with a gusset, the notches 121 and 121 of the front sheet 12 may not be provided.
The notches 111 and 111 of the back sheet 11 may not be provided.
The sheet 3 is not limited to synthetic resin, and may be, for example, paper.

  Although the holder 1 in the present embodiment accommodates the article 2 with the long side of the article 2 along the bottom of the bag 10, the present invention is not limited to this. The holder 1 may be configured to accommodate the article 2 such that the short side of the article 2 is along the bottom of the bag 10. In this case, one short side and two long sides of the front sheet 12 are connected to one short side and two long sides of the back sheet 11. Further, the sum of the length in the longitudinal direction of the front sheet 12 and the length in the extending direction of the extending sheet 13 is shorter than the length in the longitudinal direction of the A4 size sheet.

  It should be understood that the embodiment disclosed herein is illustrative in all respects and not restrictive. The scope of the present invention is not the meaning described above, and is intended to include meanings equivalent to the claims and all modifications within the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Holder 100 opening 11 back sheet 111 notch 12 front sheet 13 extension sheet 14 hinge lid 2 articles

Claims (3)

In a holder with a lid capable of containing a rectangular article having a predetermined paper size of a predetermined standard,
A rectangular back sheet having a size corresponding to the predetermined paper size;
A rectangular front sheet facing the back sheet, the bottom side and the both sides connected to the bottom side and the both sides of the back sheet;
An extension sheet extending from the top side of the front sheet to the top side;
An opening formed between the back sheet and the front sheet;
A sheet-like hinge lid for opening and closing the opening with the top side of the back sheet as a base end;
The length from the open / close end of the hinge lid to the top side of the back sheet is longer than the length in the extending direction of the extended sheet,
A holder, wherein the sum of the length in the vertical direction of the front sheet and the length in the extending direction of the extended sheet is shorter than the length in the vertical direction of the stored article. The bottom side portion and the both side portions of the front sheet are integrally provided on the bottom side portion and the both side portions of the back sheet,
The holder according to claim 1, wherein each side portion of the back sheet is provided with a notch so as to be adjacent to the top end of the side portion of the front sheet. . In the method of using a holder with a lid,
The holder is
A rectangular back sheet,
A rectangular front sheet facing the back sheet, the bottom side and the both sides connected to the bottom side and the both sides of the back sheet;
An extension sheet extending from the top side of the front sheet to the top side;
An opening formed between the back sheet and the front sheet;
A sheet-like hinge lid for opening and closing the opening with the top side of the back sheet as a base end;
The length from the open / close end of the hinge lid to the top side of the back sheet is longer than the length in the extending direction of the extended sheet,
When closing the said opening with the said hinge lid, the outer surface of the said hinge lid is made to contact the inner surface of the said extension sheet, The usage method of the holder characterized by the above-mentioned.

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