JP2002300912A - File case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a file case facilitating take-in and take-out of housed objects. SOLUTION: This file case is an almost rectangular parallelepiped, and opening/closing side face parts 22 which are side faces of both opening/closing parts 2 are connected to each other so as to open and close one opening/closing part 2 linked with the opening/closing operation of the other opening/closing part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
It relates to a file case used for transportation and the like.

[0002]

2. Description of the Related Art A conventional paper or plastic file case is shown in FIGS. FIG. 18 is an overall view, and FIG. 19 is a side view showing how the file case is opened and closed. FIG. 19a shows the state at the time of opening, and FIG. 19b shows the state at the time of closing. As shown in FIG. 19A, in a conventional file case, when taking out stored items, the lid 101 had to be opened to the extent indicated by the two-dot line. Further, as shown in FIG.
In 1, a force acts in the direction indicated by the arrow (the closing direction) due to the elasticity of the coupling portion 103 between the lid portion and the storage portion 102. For this reason, it is necessary to keep the lid 101 in place during taking in and out of the stored items, and it is not easy to put in and out of the stored items.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it easy to put and take out stored items in a file case. In addition, it aims at appropriate reinforcement taking into account the transportation of the file case.

[0004]

Means and effects for solving the problems and embodiments thereof
[1] Accordingly, the present invention relates to a “substantially rectangular parallelepiped file case. This file case has a storage bottom portion 11, front and rear storage front portions 12, and left and right storage side portions 13 around the storage bottom portion 11. It comprises a box-shaped storage portion 1 that opens, and two front and rear opening / closing portions 2 that are flexibly attached to the upper ends of front and rear storage front portions 12 in the storage portion 1. The opening / closing side portions 22 that are the side surfaces of the two opening / closing portions 2 are connected to each other so that the other opening / closing portion 2 opens and closes in conjunction with the opening / closing operation. "

FIGS. 1 and 2 show an overall view of a file case according to the present invention (FIG. 1 when closed, FIG. 2 when opened).
As shown in FIG. 1, the file case at the time of closing is a flat, substantially rectangular parallelepiped as a whole. As shown in FIG. 2, in the file case according to the present invention, the upper two opening / closing portions 2 open (oscillate) forward and backward, respectively, so that an object can be taken in and out of the file case.

[0006] The storage portion 1 is a storage bottom portion 1 located at the bottom.
1. A storage front part 12 and a storage side part 13 at both ends (right and left) of the storage bottom part 11 at substantially right and front sides around the storage bottom part 11, and the upper part is open.

The opening / closing portion 2 is an upper portion of the file case, and is located at the upper end of the storage front portion 12 of the storage portion 1 and is located at a substantially right angle around the opening / closing front portion 21. It has an opening / closing side surface portion 22 and an opening / closing upper surface portion 23. And the storage front part 12 and the opening / closing front part 21 are bendable, thereby enabling the opening / closing operation of the opening / closing part 2. A portion where the storage portion 1 and the opening / closing portion 2 are flexibly mounted is indicated by a reference numeral 24 as a bent portion.

The opening / closing portions 2 on the left and right sides have a shape in which both the opening / closing upper surface portion 23 and the opening / closing side surface portion 22 are flush with each other so that the entire file case becomes substantially rectangular when closed.

In the present invention, a handle 51 is provided on the open / close upper surface portion 23 in consideration of the convenience of carrying the file case. The handle 51 is an opening / closing upper surface portion 2 of one of the opening / closing portions 2.
3 may be provided, or may be provided on both open / close upper surface portions 23.

The opening / closing portion 2 is formed by connecting the opening / closing side portions 22, which are the side surfaces of the opening / closing portions 2, so that the other opening / closing portion 2 opens and closes in conjunction with the opening / closing operation of one opening / closing portion 2. It is characterized by the following.

[0011] Here, the phrase "in conjunction with the opening / closing operation of one opening / closing section 2 and opening / closing the other opening / closing section" means that the user grips the handle 51 attached to the opening / closing section 2a shown in FIG. When the opening / closing section 2a is opened, the other opening / closing section 2b opens forward in accordance with the opening of the opening / closing section 2a. A specific configuration for connecting the opening / closing section 2a and the opening / closing section 2b will be described later.

(Effect) As described above, according to the present invention, the two opening / closing portions 2 are attached to the upper end of the storage front portion 12 of the storage portion 1 in a bendable state. When the two opening / closing sections 2 are open, the entire upper part of the storage section 1 is open. Thereby, the stored items can be taken in and out of the storage unit 1 directly above, and the operation of storing and taking out becomes easy. In addition, the present invention relates to the movement of one opening / closing section 2 and the other opening / closing section 2
Also open and close. Thereby, the user can easily perform the opening / closing operation of the opening / closing unit 2. This is particularly remarkable in the embodiment in which the handle 51 is attached to the opening / closing upper surface portion 23. Further, even in the embodiment in which the handles 51 are provided on both of the opening / closing portions 2, there is an advantage that the opening / closing operation can be performed quickly and easily because one of the opening / closing portions 2 is opened / closed in accordance with the movement.

In the overall views shown in FIGS. 1 and 2, as a more preferred embodiment, as a member for reinforcing the file case, a main support member 5a and a sub support member 5a are provided around the opening on the side where the opening / closing portions 2 contact each other. The support member 5b is used. Further, a slide-type locking means 6 (its locking tool 61) and a bending member 7 for easy opening and closing are used. Reference numeral 95 shown in the figure is a finger hook for facilitating opening and closing.

The "opening" means an end of the opening / closing section 2 on the side (center side) where the two opening / closing sections 2 are in contact with each other. Means the part formed by Since it is difficult to specify a portion to be an opening by a code, the code is omitted. (Connecting plate) [2] The present invention relates to an opening / closing side portion 2 that opens and closes the other opening / closing portion 2 in conjunction with the opening / closing operation of one opening / closing portion 2.
The two are connected. The preferred form is "a substantially rectangular parallelepiped file case. This file case has a storage bottom surface 11, a front and rear storage front portion 12, and a left and right storage side portion 13 around the storage case portion. A storage part 1 having a rectangular shape, and two front and rear opening / closing parts 2 attached to the upper end of front and rear storage front parts 12 of the storage part 1 so as to be bent. A rotatable connection plate 204 is attached below the two opening / closing side portions 22 on the same side surface, and the connection position of the connection plate 204 is referred to as a connection portion 203. The connecting plates 204 are rotatably mounted at positions appropriately separated according to the degree of opening and closing. "

FIG. 3 shows this embodiment. FIG. 3 shows the side of the file case. Reference numeral 201 denotes a front opening / closing portion of the opening / closing portion 2, reference numeral 202 denotes a rear opening / closing portion of the opening / closing portion 2, and reference numeral 13 denotes a storage side surface portion 13 of the storage portion 1.

Reference numeral 203 denotes a connecting portion, which is a front opening / closing portion 2.
The connecting portion of 01 is denoted by reference numeral 203c, and the connecting portion of the rear opening / closing portion 202 is denoted by reference numeral 203d. Reference numeral 204 denotes this connecting portion 203
A connecting plate rotatably attached to the connecting portion 203
Reference numeral 204c denotes a connecting plate attached to the connecting portion 203c.
The one attached to d is denoted by 204d. The two connecting plates 204 are rotatably mounted at positions appropriately separated from the connecting portion 203 described above. The position where the connecting plates 204 are attached to each other is indicated by reference numeral 207 as a central connecting portion. The distance (mounting distance 209) from the central connecting portion 207 to the connecting portion 203 is determined according to the degree of opening and closing of the opening and closing portion 2.

The manner in which the opening / closing section 2 opens and closes is shown in FIGS. Fig. 3a shows a state in which the door is closed, Fig. 3b shows a state in the middle of opening, and Fig. 3c shows a state in which the door is fully opened. The opening / closing section 2 swings about the bent section 24 at the upper end of the storage section 1. As shown in FIG. 3c, the maximum opened state is the two connecting plates (204c and 2c).
04d) is when it becomes linear. If the attachment distance 209 from the connecting portion 203 to the central connecting portion 207 is large, the maximum opening of the opening / closing portion 2 is large, while if the attaching distance 209 is small, the maximum opening of the opening / closing portion 2 is small.

The opening / closing section 2, the connecting plate 204, and the connecting plate 2
An example of a structure in which the 04s are rotatably mounted can be implemented by using an appropriate hole and screwing with a screw having the same diameter or a slightly smaller diameter than the hole.

In this embodiment, two connecting portions 203 provided at the front and rear opening / closing portions (201, 202) are provided.
Need not be at the same height, and may have a difference in height above and below. As a material of the connecting plate 204, a thin plate is preferable, and a material having high elasticity can be used in addition to a material having no elasticity. (Guide Groove 32) [3] Further, a preferred embodiment of the present invention is a “substantially rectangular parallelepiped file case having the following configuration. A box-shaped storage section 1 having a front and rear storage front section 12 and left and right storage side face sections 13 around it and having an opening at the top, and a bendable upper end of the front and rear storage front section 12 in the storage section 1. It consists of two front and rear opening / closing portions 2. The side surface of the opening / closing portion 2 is referred to as an opening / closing side portion 22, and a part of the opening / closing side portion 22 always overlaps from when the opening / closing portion 2 is closed to when it is opened. The one opening / closing side surface portion 22 has a convex portion 31 in this overlapping range.
And the opening / closing section 2 provided with the projection 31 is connected to the main opening / closing section 2.
a, the opening / closing side portion 22 is a main opening / closing side portion 22a, the other opening / closing portion 2 is a sub opening / closing portion 2b, and the opening / closing side portion 22 is a sub opening / closing side portion 22b. The sub-opening / closing side surface portion 22b has the convex portion 3 when closed.
A guide groove 32 having substantially the same width as the diameter of the convex portion 31 is provided at a position overlapping with the guide groove 1, and the guide groove 32 is extended into a guide groove range 36 from the lower line 35 to the bent portion 24a of the main opening / closing portion 2a. I do. The length of extension of the guide groove 32 is appropriately set according to the degree of opening and closing of the opening / closing section 2. The protrusion 31 is arranged inside the guide groove 32 so as to be movable in the guide groove 32. (Effect) With the form in which the guide groove 32 is provided, the two opening / closing portions 2 can be connected and opened / closed while having a simple structure. In particular, since the side structure is thin, the appearance and the inner appearance are beautiful.

(Side) FIG. 4 shows an embodiment of the present invention. FIG. 4 is a side view when the file case is closed in this embodiment. Above the storage side portion 13 located on the lower side,
The main opening / closing side surface portion 22a is on the left side, and the sub opening / closing side surface portion 22 is on the right side.
b is arranged. In this embodiment, from the time of closing the opening / closing section 2 to the time of opening, a part of the opening / closing side face section 22 is always overlapped. In the figure, the outline of the main opening / closing side surface portion 22a is represented by a solid line with the front side as the near side. The sub-opening / closing side surface portion 22b is on the back side, and the outline of a portion overlapping the main opening / closing side surface portion 22a and the housing side surface portion 13 is indicated by a dotted line. This sub opening and closing side part 2
The portion indicated by the dotted line in 2b is an overlapping portion.

(Protrusion 31: Guide Groove 32) The main opening / closing side surface portion 22a shown in FIG. A guide groove is provided in the sub-opening / closing side surface part 22b at a position overlapping with the convex part 31 when the door is closed, and this is indicated by reference numeral 32. Since this guide groove 32 is located inside the main opening / closing side surface portion 22a and the storage side surface portion 13, it is shown by a dotted line.

The "convex portion 31" is formed by penetrating the side portion from the outside or inside of the file case using a screw or a screw, or the thickness of the main opening / closing side portion 22a is increased only at the portion which becomes the convex portion 31. It can be formed in various forms, for example, by forming the convex portion 31 or by providing the main support member 5a described later with the convex portion 31.

The "guide groove 32" is one in which the above-mentioned convex portion 31 is disposed in the groove, and the convex portion 31 moves in the guide groove 32 in accordance with the opening / closing operation of the opening / closing section 2. Things. In this embodiment, in conjunction with the opening / closing operation of the main opening / closing portion 2a, the convex portion 31 is moved in the guide groove 32,
The sub-opening / closing section 2b also opens and closes.

(Guide Groove Range 36) The guide groove 32 extends into the guide groove range 36 from the position of the convex portion 31 at the time of closing.
The "guide groove range 36" refers to a range from the position of the convex portion 31 shown in FIG. 4 to a bent portion 24a of the main opening / closing portion 2a with reference to a lower line 35 which is a perpendicular line directed downward. In the embodiment in which the convex portion 31 and the bent portion 24a have the same height as shown in FIG. 0
Is the direction of the lower line 35 drawn directly below the convex portion 31. 90 ° is a horizontal line from the position of the convex portion 31 at the time of closing to the direction of the bent portion 24a.

The groove width 37 of the guide groove 32 is
In order to allow the movable member 1 to move in the guide groove 32, the convex portion 3
1 is almost the same as the diameter. Note that the groove width 37 may be slightly larger than the diameter of the convex portion 31 as long as the convex portion 31 can move smoothly, and in this case, the width is substantially the same.

(The shape of the guide groove 32) The position of the opening / closing section 2 when the opening / closing section 2 is fully opened and the extent to which the sub opening / closing section 2b opens / closes with respect to the opening / closing operation of the main opening / closing section 2a are determined by the guide grooves. The length of the guide groove 32 (guide groove length 38) is determined by the angle of 32 (guide groove angle 39 with reference to the lower line 35). As an example, when the guide groove length 38 is large, it opens widely, and when it is small, it opens small. Where A
When the guide groove angle 39 is 45 ° in a four-size file case, the guide groove length 38 is desirably about 15 to 30 mm. Also, if the guide groove angle 39 is small, it opens widely,
When the angle is large, it opens small.

Although the shape of the guide groove 32 is substantially straight, it need not be strictly straight, but may be slightly curved as shown in FIG. 4 or corrugated. Including these, it is a substantially linear guide groove 32 in the present invention. Then, from the viewpoint of smoothly moving the convex portion 31 in the guide groove 32, the guide groove 32 has a side (upper side 40) of the guide groove 32 with which the convex portion 31 contacts when the opening / closing section 2 is opened.
A curved shape having a convex side is desirable.

In order to prevent the openable opening / closing section 2 from being closed naturally, a recess (fixing recess 41) into which the convex portion 31 fits shallowly is provided on the upper side 40 of the guide groove 32. Good. In the guide groove 32 of FIG. 4, the fixing recess 41 is provided at a position where the convex portion 31 is located at the time of the maximum opening. When the protrusion 31 fits into the fixing recess 41, the movement of the protrusion 31 in the guide groove 32 is restricted.
The opening / closing section 2 can be prevented from closing naturally.

(Direction of Guide Groove 32) The guide groove 32 extends in any direction within the guide groove range 36 with reference to the lower line 35 shown in FIG. Here, FIG. 5 shows one obtained by changing the extension angle. FIG. 5 shows the auxiliary opening / closing side surface portion 22b provided with the guide groove 32 by a solid line, and shows the main opening / closing side surface portion 22b.
a and the storage side part 13 are shown by dotted lines. FIG. 5A shows the guide groove 32 extended in the 0 ° direction, FIG. 5B shows the guide groove 32 extended in the 45 ° direction, and FIG.
c. The present invention can be implemented in a form in which the guide groove 32 is extended in a range of 0 to 90 degrees shown in the drawing.

Here, when the guide groove angle 39 is smaller than 0 ° (minus angle) or larger than 90 °, the convex portion 31 cannot move smoothly in the guide groove 32, and the opening / closing portion 2 cannot be sufficiently opened. It is not desirable because it cannot be opened.

The angle at which the guide groove 32 is extended depends on the degree of opening and closing of the main opening / closing portion 2a provided with the convex portion 31.
The opening and closing of the sub-opening / closing portion 2b provided with the guide groove 32 may be determined in consideration of the degree to which the sub-opening / closing portion 2b is opened and closed.
A range of 6060 ° is desirable.

There is no particular limitation on the shape of the entire file case. As shown in FIG. 1, in addition to the horizontally long shape, the shape may be vertically long. Also, there is no particular limitation on the height ratio between the storage section 1 and the opening / closing section 2. In addition to about 1: 1, storage unit 1
Is large, and the opening / closing part 2 is large. Further, both the front and rear opening / closing portions 2 do not need to be the same size. (Side Reinforcement Plate 45: Reinforcement Guide Groove 46) [4] In the above-described invention, the side surface of the file case is configured by the storage side surface portion 13 and the two opening / closing side surface portions 22 (the main opening / closing side surface portion 22a and the sub opening / closing side surface portion 22b). Is done. Here, a preferred embodiment of the present invention is “the above-mentioned file case, characterized by having the following configuration.
1, a side reinforcing plate 45 is provided on the entire moving range of the housing 1 and the storage side surface portion 13. A distance from the bent portion 24a to the convex portion 31 is defined as a convex portion distance 26, an arc shape having a radius corresponding to the convex portion distance 26 around a bending corresponding position 47 corresponding to the bent portion 24a, and A reinforcing guide groove 46 having substantially the same width as the convex portion 31 is provided in the moving range of the convex portion 31 by the side reinforcing plate 45.
To be provided. The protrusion 31 is arranged in the reinforcing guide groove 46 and is movable in the reinforcing guide groove 46. (Effect) In this embodiment, a side reinforcing plate 45 is provided on the side surface of the file case to reinforce the side surface of the file case. Further, a reinforcing guide groove 46 is provided in the side reinforcing plate 45, and the convex portion 31 is arranged in the reinforcing guide groove 46 so as to be movable. This also aims at strengthening the portion (the coupling mechanism 3 portion) composed of the convex portion 31.

(Side reinforcing plate 45)
FIG. 6 is an overall view of a plate-shaped member attached to the side surface of the file case. The side reinforcing plate 45 is a plate attached to the inside of the side surface of the file case, and the lower side thereof has substantially the same shape as the storage side portion 13. Specifically, the width of the reinforcing side plate is substantially the same as the width of the inside of the storage side portion 13. The upper side is a portion that protrudes upward from the storage side surface portion 13 and extends to a range that overlaps with a range in which the convex portion 31 moves. The side reinforcing plate 45 shown in the drawing is attached to the inside of the side surface shown in FIG. 4, and reference numeral 47 in the drawing denotes a bending corresponding position 47 corresponding to the bending portion 24a.
Becomes

The side reinforcing plate 45 is attached to substantially the entire storage side portion 13 for the purpose of reinforcing the side surface of the file case. The shape can be appropriately changed as long as this purpose is achieved, and the storage side portion 13 can be strictly changed.
It does not need to be attached to the whole. (Control of Opening) A reinforcing guide groove 46 is provided above the side reinforcing plate 45. The shape of the reinforcing guide groove 46 is the main opening / closing portion 2a.
Is determined in accordance with the movement locus of the convex portion 31 provided at the time of opening and closing operation. Specifically, the convex portion 31 swings on an arc around the bent portion 24a when the main opening / closing portion 2a is opened and closed.
Accordingly, when the distance from the bent portion 24a to the convex portion 31 shown in FIG. 4 is set to the convex portion distance 26, the reinforcing guide groove 46 is a groove on an arc having the convex portion distance 26 as a radius around the bent corresponding position 47. It is. The width of the groove (the width of the reinforcing guide groove 46) is substantially the same as or slightly larger than that of the projection 31 as in the case of the guide groove 32.

The degree of opening of the opening / closing section 2 depends on the side of the auxiliary opening / closing side section 2.
It can be controlled by the length of the guide groove 32 provided in 2b. In this case, the convex portion 31 hits the end of the guide groove 32, restricting the movement of the convex portion 31 and suppressing the opening and closing portion 2 from opening further.

In the embodiment using the side reinforcing plate 45, the degree of opening can be controlled by the reinforcing guide groove 46. In this case, the movement of the protrusion 31 is controlled not at the end of the guide groove 32 but at the end 48 of the reinforcing guide groove 46. When the degree of opening is controlled by the reinforcing guide groove 46, the setting is made such that the end 48 of the reinforcing guide groove 46 is located at the position of the convex portion 31 at the time of the maximum opening. (Opening / Closing Mode) The manner in which the sub-opening / closing portion 2b opens and closes in conjunction with the movement of the main opening / closing portion 2a by the convex portion 31 and the guide groove 32 will be described with reference to FIGS. Further, the auxiliary guide groove 46
The manner in which the protrusion 31 moves in the auxiliary guide groove 46 will also be described.

FIGS. 7A to 7C show a main opening / closing section 2a and a sub opening / closing section 2b.
7a shows the state of opening and closing, focusing on the convex portion 31 moving in the guide groove 32. FIG. 7a shows the state when the door is closed (position 1), and FIG.
Is in the middle of opening (position 2), and FIG. C is at the time of opening (position 3). In FIG. 7A, the convex portion 31 at the time of closing is shown by a solid line, the guide groove 32 is shown by a chain line, and the auxiliary guide groove 46 is shown by a two-dot chain line. Further, the moving convex portion 31 is indicated by a dotted line. FIGS. 7b and 7c also show the convex portion 3 moving in the same manner.
1 is indicated by a dotted line. The auxiliary guide groove 46 provided in the auxiliary side plate 45 is indicated by a two-dot chain line in all drawings. In this figure, a handle 51 described later is attached to the main opening / closing upper surface 23a of the main opening / closing portion 2a. (Position 1) The convex portion 31 is located at the upper right in the guide groove 32 (FIG. 7A). (Position 2) Next, when the main opening / closing portion 2a is slightly opened (opened to the left), the convex portion 31 moves concentrically around the bent portion 24a of the main opening / closing portion 2a. Due to the movement of the convex portion 31,
The upper side 40 of the guide groove 32 is pushed up by the projection 31. As a result, the sub opening / closing portion 2b is bent around the sub bending portion 24b and opens rightward. At that time, the convex portion 31 moves in the guide groove 32 and moves near the center of the guide groove 32 (FIG. 7B). (Position 3) Further, when the main opening / closing section 2a is opened, the projection 3
1 further pushes up the upper side 40 of the guide groove 32, and
Open b to the right. The protrusion 31 moves to the left end in the guide groove 32 (FIG. 7c). Then, the convex portion 31 fits into the fixing groove 41 provided on the upper side 40 of the guide groove 32, and the open state of the opening / closing section 2 is maintained. (When closing) When closing the opened opening / closing section 2, the above-described movement is reversed. When the main opening / closing section 2 a is closed, the convex portion 31 pushes down the lower side 42 of the guide groove 32 and interlocks with the main opening / closing section 2 a. The sub opening / closing section 2b closes. (Supporting Member + Handle 51) [5] In practicing the present invention, it is preferable that the handle 51 is provided above the file case in consideration of carrying. However, in the embodiment using the handle 51, the weight of the stored items is concentrated on the mounting portion of the handle 51. Therefore, in order to counter the weight of the stored items, it is necessary to disperse the excessive weight concentrated on the attachment portion of the handle 51. In the case of using the handle 51, the weight of the stored items stored in the storage section 1 is all supported by the bent portion 24 of the opening / closing section 2 provided with the handle 51.

Therefore, a preferred embodiment of the present invention is “the file case described above, which is characterized by having the following structure. The structure comprising the guide groove 32 and the convex portion 31 is connected to the connecting mechanism 3. The connecting mechanism 3 is provided on both the left and right opening and closing side portions 22. A portion of the opening and closing portion 2 where the opening and closing portions 2 are in contact with each other is defined as an opening, and the main opening and closing portion 2a is provided around the opening. The main support member 5a, which has an inner shape substantially the same shape as the opening and has a substantially U-shape, and is superior in strength to the case material, which is the main material of the file case, is formed by connecting the one connecting mechanism 3 to the other. The main support member 5a is provided with a portion provided on the opening / closing side surface portion 22 as a main support side surface portion 52, and the convex portion 31 of the connection mechanism 3 is attached to the main support side surface portion 52. A handle 51 for facilitating the carrying of the file case is attached to the main support member 5a. "(Effect) As described above, in the preferred embodiment of the present invention, in order to reinforce the opening / closing section 2, the vicinity of the opening is provided. The main support member 5a is provided, and the handle 51 is attached to the main support member 5a. Thereby, the handle 51 can be attached more firmly. Further, it is possible to prevent the opening / closing upper surface portion 23 to which the handle 51 is attached from being broken. Further, in this embodiment, the main support member 5a is arranged from one connecting mechanism 3 to the other connecting mechanism 3, and the convex portion 31 is attached to the main supporting member 5a. Thus, the weight of the stored object is directly transmitted to the handle 51 via the main support member 5a as well as the bent portion 24. This makes it possible to disperse the weight of the stored items and to carry heavier stored items.

Here, the "case material" is a material constituting the main body of the file case, specifically, plastic or reinforced paper. As the "main support member 5a having higher strength than the case material", it is possible to use ABS, plastic thicker than the file case body, or the like, in addition to metal and hardened rubber material. (Integration of the main support member 5a and the convex portion 31) [6] The convex portion 31 of the connection mechanism 3 according to the present invention can be embodied by using a screw or a screw as described above (using the screw 93). FIG. 20 shows a form of molding using the same. Here, a preferred embodiment using the main support member 5a is “the file case described above. The convex portion 31 and the main support side surface portion 52 are integrally formed. Characterized by being provided with means for penetrating the guide groove 32 provided on the side surface portion 22a and the sub-opening / closing side surface portion 22b, and for preventing the protrusion 31 from coming off from inside the file case. " is there.

(Effect) Since a large load is applied to the convex portion 31, strength is required. In addition, from the viewpoint of improving productivity, it is required to easily assemble the connecting mechanism 3 including the convex portions 31 and the guide grooves 32. Therefore, in this embodiment, the convex portion 31 is integrally formed as a part of the main support side surface portion 52, and the convex portion 31 is made to penetrate the main opening / closing side surface portion 22a and the guide groove 32. Thereby, the convex portion 31 having excellent strength can be manufactured at low cost. In the assembling process of the file case, by attaching the main support member 5a to the main opening / closing portion 2a,
At the same time, the projection 31 is also completed, so that the assembly process is also shortened.

Further, in the case of the embodiment using the above-mentioned side reinforcing plate 45 on the side surface of the file case, a preferable embodiment is “the above-mentioned file case, in which the protruding portion 31 has the main opening / closing side surface portion 22 a and And a means for penetrating the guide groove 32 and the reinforcing guide groove 46 and preventing the convex portion 31 from coming off from the inside of the file case. "

(Main Support Member 5a) FIGS. 2 and 8 show examples of the above [5] and [6]. In this embodiment, a connecting mechanism 3 is provided on both the left and right side surfaces as shown in FIG. The main support member 5a is a substantially U-shaped member that covers the outer periphery of the opening of the main opening / closing section 2a from one connecting mechanism 3 to the other connecting mechanism 3. The main support member 5a is attached to the outside of the opening of the main opening / closing section 2a, and its inner shape is substantially the same as the outer shape of the main opening / closing section 2a.

(How to Attach Main Support Member 5a) There is no particular limitation on the attachment of the main support member 5a, and the main support member 5a may be attached by adhesion, welding, or using screws. In this embodiment, from the viewpoint of not only bonding but also more firm attachment, the main opening / closing upper surface portion 2 is formed by using a back support member 53 described later.
3 is sandwiched between the main support member 5a and the back support member 53, and these are screwed together to penetrate them. In this example,
The case material has a thickness of 1.0 mm. P.
(Polypropylene). On the other hand, ABS is used for the main support member 5a as a material having excellent strength.

FIG. 8 shows an exploded structure of the main opening / closing portion 2a and the main support member 5a. The figure shows the main support member 5 on the outside.
a on the inner side (left side) of the main opening / closing section 2a and the sub opening / closing section 2
b shows a side reinforcing plate 45 and a slip-off prevention ring 55.

As shown in the figure, the convex portion 31 is integrally formed inside the main support side portion 52. A ring groove 54 for preventing slippage is provided on the outer periphery of the convex portion 31.

The projection 31 penetrates through a projection hole 34 provided in the main opening / closing side surface portion 22a and a guide groove 32 provided in the sub opening / closing side surface portion 22b. Further, in this embodiment, since the side reinforcing plate 45 is used, the reinforcing guide groove 46 also penetrates.

The penetrating projection 31 is provided with a slip prevention ring 55 having an inner diameter smaller than the diameter of the projection 31 as a means for preventing slippage. The detachment prevention ring 55 is fixed by a ring groove 54 provided in the convex portion 31.

A screw hole 91 is provided in the main support side surface 52, and a screw 9 is inserted into the hole through a washer 92 from the inside.
FIG. 20 shows a configuration in which the convex portion 31 is formed by 3. (Auxiliary Supporting Member 5b) [7] Further, a preferred embodiment of the present invention is directed to the above-mentioned file case, which has the following configuration. The sub-opening / closing upper surface 23
A sub-supporting member 5b, which is superior in strength to the case material, which is the main material of the file case, is provided on the sub opening / closing upper surface portion 23 and substantially the entire opening. When the opening / closing section 2 is closed, the main support member 5a overlaps with the sub support member 5b facing down. (Effect) As described above, not only is the main opening / closing section 2a provided with the main supporting member 5a, but also the sub opening / closing section 2b is provided with the auxiliary supporting member 5b, and when the door is closed, the auxiliary supporting member 5b is connected to the main supporting member. 5a, the auxiliary opening / closing portion 2b
Is transmitted to the handle 51 via the main support member 5a. As a result, the load on the stored object is
a and the main support member 5a, as well as the handle 51 via the auxiliary support member 5b, so that the strength of the entire file case is improved (heavier storage items can be carried).

FIG. 2 shows the entire sub-support member 5b. The "sub-support member 5b" is a member attached to strengthen the periphery of the opening in the sub-opening / closing portion 2b, and has a plate-like or rod-like length substantially equal to or shorter than the width of the sub-opening / closing portion 2b. It is a member. In the embodiment shown in FIG. 2, the sub-supporting member 5b is attached to the back side of the sub-opening / closing upper surface portion 23, and the outline on the back side of the sub-opening / closing upper surface portion 23 is projected above the sub-opening / closing upper surface portion 23 by a dotted line. Part (sub support upper surface 57
b) is shown by a solid line.

(A-A section) Main support member 5a A-A section of the file case shown in FIG. 2 is shown in FIGS.
Shown in FIG. 9 shows the state at the time of opening. FIG. 10 shows the closed state,
This shows a state in which the sub-support member 5b is overlaid on the main support member 5a.

The main support member 5a is mounted on the main opening / closing upper surface portion 23. Then, a step-like step is provided on the opening side, and the lower extension 56 is protruded toward the sub-opening side. The degree of protrusion may be determined according to the size of the file case. If it is an A4 size file case, project it by about 2 to 6 mm. In this embodiment, the lower extension portion 56 is provided on substantially the entire main opening / closing upper surface portion 23. The tip of the lower extension 56 is chamfered so as not to hit the sub-support member 5b when closing. The lower extension portion 56 may be provided in a manner divided and provided at appropriate positions.

Reference numeral 53 shown in the figure denotes the above-mentioned back support member 53, and the main opening / closing upper surface portion 23 is sandwiched and fixed between the back support member 53 and the main support member 5a.

The sub support member 5 b is attached to the sub opening / closing upper surface 23. In this embodiment, most of them are attached to the lower side of the sub opening / closing upper surface portion 23,
The sub-supporting upper surface portion 57b is provided so as to sandwich the sub-opening / closing upper surface portion 23 on the opening side. A recess 58 that meshes with the above-described lower extension 56 is provided below the sub support upper surface 57b. The attachment of the sub-support member 5b can also be performed in various modes, and can be performed using an adhesive, a screw, or a screw.

In view of the fact that the main support member 5a supports the auxiliary support member 5b, the auxiliary support member 5b is
3 is desirable.

FIG. 10 shows a state in which the opening / closing section 2 using the main support member 5a and the sub support member 5b is closed. As shown in the drawing, in the present invention, the main support member 5a
Are overlapped with each other on the lower side (in this embodiment, the lower extension 56 of the main support member 5a is on the lower side), and the auxiliary support member 5b is on the upper side. Thereby, the sub-opening / closing portion 2b (the sub-opening / closing upper surface portion 23)
The load applied to the b) side can be transmitted to the main support member 5a via the auxiliary support member 5b, and the strength of the entire opening / closing section 2 is improved. In particular, the opening of the sub-opening / closing section 2b is not distorted. Further, in this embodiment, in order to make the appearance when the door is closed beautiful, the main support member 5 positioned on the main opening / closing upper surface portion 23 is provided.
The height of the main support upper surface portion 57a and the height of the sub support upper surface portion 57b of “a” are made equal to each other. (Locking Member) [8] It is desirable to provide locking means 6 at the upper end of the file case (opening / closing upper surface portion 23) so that the opening / closing section 2 does not open without permission during transportation of the file case. Locking means 6
Various conventional locking tools such as a clip type can be used.

Here, a preferred embodiment of the present invention relates to the above-mentioned file case, which is characterized in that it has the following configuration: The main open / close upper surface portion 23a of the main support member 5a. A recess is provided outside the upper main support upper surface portion 57a, and this is used as a main locking recess 63a.A recess is provided outside the sub support upper surface portion 57b, and this is used as a sub locking recess 63b. At the time of closing, the main locking concave portion 63a and the sub locking concave portion 63b are sandwiched integrally, and the locking means 6 for controlling the opening operation of the opening / closing portion 2 is provided on one of the opening / closing upper surface portions 23. " In this embodiment, the main and sub support members 5 (5a, 5b) used for strengthening the opening / closing section 2 are used for locking of opening and closing, and the main support member 5a and the sub support member 5b are integrated. By holding it, the conventional locking tool Rimoyori can be firmly locking the closing part 2. [9] As a preferred embodiment of the present invention (locking means 6), the above-mentioned file case is described as follows. Is a closed position, and a locking tool 61 slidable between the open position and the closed position is provided.- A cross-sectional shape where the main support upper surface portion 57a and the sub-support upper surface portion 57b at the closed position are combined; Locking device 6
1 wherein the cross-sectional shape of the inner wall is substantially the same. This makes it possible to implement the above-described locking means 6 with a very simple structure. Further, the switching between the opening and closing of the opening / closing section 2 can be easily performed.

FIG. 1 shows a sliding-type locking tool 61 as locking means 6 on the upper side of the file case, on the main support member 5a.
What arranged. The position is one on each side of the handle 51. FIG. 11 shows a part where the main support member 5a and the sub-support member 5b are fitted together at a portion where the locking tool 61 is to be attached (the drawing shows the locking tool 61 removed).

At the opening position shown in the figure, only the main support upper surface 57a of the main support member 5a appears. Therefore, the locking device 6
1 sandwiches only the main support member 5a. On the other hand, in the closed position,
Main support upper surface portion 57a of main support member 5a and sub support member 5b
Appears next to the sub-supporting upper surface portion 57b. Locking tool 61
The opening and closing of the main and sub opening / closing portions 2 can be controlled by this.

(Opening Position) FIG. 12 shows a sectional view of the opening position. As shown in the figure, the portion that appears on the open / close upper surface 23 at the opening position is constituted by the main support upper surface 57a, and the sub-support member 5b does not appear on the auxiliary open / close upper surface 23b. The locking tool 61 is attached only by the main support member 5a.

Depressions are provided on both sides of the main support upper surface 57a. The recess is used as a main locking concave portion 63a, and the locking convex portion 62 of the locking device 61 is fitted to this portion, so that the locking device 61 is slidably attached to the opening / closing upper surface portion 23.

(Closed Position) FIG. 13 is a sectional view of the closed position. In the closed position, the main locking recess 63a is provided only outside the main support upper surface 57a. The inside of the main support upper surface portion 57a is a flat surface and is brought into surface contact with a later-described sub support upper surface portion 57b. The sub-support member 5b has its opening side protruding above the sub-opening / closing upper surface portion 23b to form a sub-support upper surface portion 57b. A dent is provided outside the sub-support upper surface portion 57b, and this dent is used as a sub-locking concave portion 63b.

At this closed position, the cross-sectional shape of the main support upper surface portion 57a and the sub-support upper surface portion 57b is made substantially the same as the cross-sectional shape of the inner wall of the locking member 61 (the locking member 61 The spacing between the locking projections 62 and the spacing between the main locking recess 63a and the sub locking recess 63b are substantially the same.

Thus, the main support member 5a and the sub-support member 5b can be firmly sandwiched by the slide-type locking member 61, and the opening of the opening / closing section 2 can be controlled. In this embodiment, the main support upper surface portion 57a at the opening position described above is used.
And the main support upper surface 57a at this closed position.
And the sub-supporting upper surface portion 57b have substantially the same cross-sectional shape. Thereby, the smooth movement of the locking tool 61 is enabled. In the opening position, the locking tool 61
It can prevent wobble.

(Others) As the locking means 6 other than the sliding locking tool 61, the main supporting member 5a provided with the locking recess 63 and the sub-supporting member 5b are combined, and the locking tool 6
It is also possible to implement the embodiment in which the first member 1 is forcibly fitted and locked. (Bending member 7) [10] FIG. 14 shows a state where many items are stored in the file case according to the present invention. FIG. 14A shows a state where the opening / closing section 2 is closed and the storage front section 12 in the storage section 1 and the opening / closing front section 21 in the opening / closing section 2 are expanded. The opening / closing section 2 cannot be opened while the front section and the opening / closing front section 21 are in an expanded state. In order for the expanded file case to open, the front part and the opening / closing front part 21 need to be depressed in the direction of the arrow shown in FIG. 14B.

Here, if the bent portion 24 is merely a hinge mechanism, the depression in the direction of the arrow in FIG. 14B is not easily performed. Therefore, a preferred embodiment of the present invention is the above-mentioned file case, which is characterized by having the following configuration. The bent portion 24 at the upper end of the storage front portion 12 has a width corresponding to the file width W1. A slit 71 having a slit width W2 of about 50 to 100% and a slit height H2 of about 0.5 to 10% with respect to the file height H1 is provided. The member 7 is arranged • The slit lower side 7 which is the lower side 42 in the slit 71.
The bending member 7 is attached to the second member 2. A slit upper side 7 which is the upper side 40 in the slit 71
The bent member 7 is attached to the third member 3. The "slit 71" means a hole provided in the bent portion 24 of the file case, and a front view of the file case provided with the slit 71 is shown in FIG. The file width W1 and the file height H1 mean the width and height of the file case itself according to the present invention, and the slit width W2 and the slit height H2 are the same as the width of the slit 71 provided in the bent portion 24 shown in FIG. Means height.

By providing the slit 71 having a predetermined size in the bent portion 24, the depression in the direction of the arrow in FIG. 14B can be easily performed. As a result, the opening / closing operation of the opening / closing section 2 can be easily performed even if the file case swells by storing many items.

Further, the mere provision of the slit 71 reduces the strength of the file case. For example, a crack is formed around the slit 71. Therefore, in this embodiment, the bending member 7 having excellent flexibility is provided inside the slit 71. This compensates for a decrease in strength due to the slit 71.

The slit 71 enhances the flexibility of the front of the file case, but if it is too small, the effect cannot be obtained. On the other hand, if the slit 71 is too large, the flexibility (particularly the front part) of the file case is increased, but the strength as the file case is excessively reduced. Therefore, the size of the slit 71 in this embodiment is about 50 to 100% with respect to the file width W1 and about 0.5 to 10% with respect to the file height H1, or 1 to 10 m.
m. Note that a slit width W2 that is 100% of the file width W1 means that the entire bent portion 24 is formed of this bent member.

FIG. 16 shows a cross section of the bending member 7 attached to the slit 71. The bending member 7 is excellent in flexibility, and the one shown in the figure has two U-shaped parts 75 for attaching to the slit upper side 73 and the slit lower side 72 and has an intermediate part 76 between them. is there. The bending member 7 may be made of a uniform material, but from the viewpoint of enhancing flexibility and strength, it is desirable that the U-shaped part 75 is made of a hard resin and the intermediate part 76 is made of a soft resin. . Examples of this hard resin include P.I. P. (Polypropylene) can be used. An elastomer or the like can be used as the soft resin.

As the "flexible bending member 7 having excellent flexibility", materials such as resin and rubber, which have excellent flexibility, as well as plastics which are not as flexible as these resins and rubber, may be used. Even if the material is used, a groove (bending groove 74) having a reduced thickness is provided in the direction of the slit width W2.
It may be a form that bends around 4 as a base point. Further, the bending groove 7 is formed on the bending member 7 made of resin or rubber having excellent flexibility.
It is also desirable to provide a mode in which 4 is provided.

More specifically, a plurality of engagement teeth and a slider capable of engaging and disengaging the engagement teeth are provided on the periphery of an opening formed in the cloth, and the opening can be opened and closed by sliding the slider. Such a slide fastener may be used instead of the “flexible bending member 7 having excellent flexibility”. A specific description of this substitute example is a mode in which a slide fastener is provided in the slit 71 so that the opening extends along the file width direction. And
In this case, the effect described above can be similarly exerted on the file case by the flexibility of the fabric,
Articles such as documents can be taken in and out of the opening.

The bending member 7 can be attached to the slit upper side 73 and the slit lower side 72 in various forms such as welding, bonding, fitting, and screwing.
As a preferable mounting method, as shown in FIG. 16, the U-shaped portion 75 sandwiches the slit upper side 73 and the slit lower side 72 and adheres or welds.

The slit 71 can be embodied by providing only one of the front and rear bent portions 24.
From the viewpoint of storing more objects, both bent portions 24
Is preferably provided. Further, the present invention can also be implemented in a mode in which two to four small slits are provided in one bent portion 24. (Expanded View) FIG. 17 shows an expanded view of this file case. The one shown in FIG. 17 is punched out of one plastic sheet, for example. Reference numeral 11 located at the center
Has a storage bottom portion, a storage front portion 12 on the upper and lower sides thereof, and further has an opening / closing front portion 21 and an opening / closing upper surface portion 23 above and below. Of the storage front parts 12, the lower storage front part 12
Are provided on both sides. On the other hand, glue margins 14 are provided on both sides of the upper storage side surface portion 13. A Thomson hinge is provided between the storage front section 12 and the opening / closing front section 21, thereby allowing the opening / closing front section 21 to be bent. In this embodiment, a hole having a width of 90% with respect to the file width and a width of 2% with respect to the file height is provided at the position of the Thomson hinge between the storage front portion 12 and the opening / closing front portion 21. I do. The bending member 7 shown in FIG.

A main opening / closing side surface portion 22a is provided on both sides of the lower opening / closing front portion 21a in the figure, and a projection hole 34 is provided. On the other hand, the opening / closing side portions 22 on both sides of the upper auxiliary opening / closing front portion 21b.
b has a greatly extended shape so that when assembled into a file case, the open / close side portions 22 overlap each other. A guide groove 32 is provided in a portion overlapping with the convex hole 34. The shape of the guide groove 32 depends on the lower line 35.
, And the form is as shown in FIG.

In the developed view shown in FIG. 17, the boundary between the components is a bent portion, and the file case is assembled by bending the bent portion. The main support member 5a is provided in the projection hole 34.
The protrusion 31 provided in the above is penetrated from the outside to form the protrusion 31, and the protrusion 31 is further disposed in the guide groove 32, thereby forming the connection mechanism 3 (see FIG. 8).

Although the present embodiment has been described with specific reference to the materials used, it goes without saying that other materials can be substituted without departing from the spirit of the present invention.

[Brief description of the drawings]

Fig. 1 Overall view of file case (closed)

Fig. 2 Overall view of file case (when opened)

[Figure 3] Connection plate usage example

FIG. 4 is a side view of a file case.

FIG. 5 shows an embodiment of a guide groove angle.

FIG. 6 is an overall view of a side reinforcing plate.

FIG. 7a is an explanatory view of an opening / closing mechanism.

FIG. 7b is an explanatory view of an opening / closing mechanism.

FIG. 7c is an explanatory view of an opening / closing mechanism.

FIG. 8 is an illustration of a connection mechanism and a configuration.

FIG. 9 is a cross-sectional view of the opening / closing upper surface (at the time of opening).

FIG. 10 is a cross-sectional view of the opening / closing upper surface (when closed).

FIG. 11 is a top view of the locking means.

FIG. 12 is a sectional view of the locking means (when opened).

FIG. 13 is a sectional view of the locking means (when locked).

FIG. 14 is an overall view of the file case when stored.

FIG. 15 is a configuration diagram of a slit.

FIG. 16 is a sectional view of a bending member.

FIG. 17 is an expanded view of a file case.

FIG. 18 shows a conventional file case.

FIG. 19 shows a conventional file case (open / close view).

FIG. 20 is an explanatory view of a connection mechanism and a configuration, part 2

[Explanation of symbols]

a: Opening / closing portion 2 side provided with a convex portion b: The other opening / closing portion 2 side 1 Storage portion 11 Storage bottom portion 12 Storage front portion 12 13 Storage side surface portion 14 Glue allowance 2 Opening / closing portion 2 (2a Main opening / closing portion 2b Secondary opening / closing portion Part 2) 21 opening / closing front part 22 opening / closing side face part 23 opening / closing upper surface part 24 bending part 26 convex distance 201 front opening / closing part 2 202 rear opening / closing part 2 203 connecting part 204 connecting plate 207 central connecting part 209 mounting distance 3 connecting mechanism 31 convex Part 32 guide groove 33 fixing groove 34 convex hole 35 downward line 36 guide groove range 37 groove width 38 guide groove length 39 guide groove angle 40 upper side 41 fixing recess 42 lower side 45 side reinforcing plate 46 reinforcing guide groove 47 bending Corresponding position 48 End 5 Support member (5a main support member, 5b sub-support member) 51 Handle 52 Main support side surface 53 Back support member 54 Ring groove 55 Pull-out prevention ring 5 Lower extension portion 57 Support upper surface portion (main support upper surface portion 57a, sub-support upper surface portion 57b) 58 recess 6 locking means 61 locking tool 62 locking convex portion 63 locking concave portion (63a main locking concave portion, 63b sub-locking) (Concave portion) 7 bending member 71 slit 72 slit lower side portion 73 slit upper side portion 74 bending groove 75 U-shaped portion 76 intermediate portion W1 file width W2 slit width H1 file height H2 slit height

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 5/465 B65D 5/66 321C 5/472 43/16 A 5/475 5/46 331Z 5/66 321 43/16 (72) Inventor Yoko Yamashita 1-1-22 Nojinbashi, Chuo-ku, Osaka City F-term in Lihit Lab Co., Ltd. (Reference) 3E060 AA03 BC04 CA01 CA13 CA34 CD02 CD04 CD13 EA08 EA20 3E084 AA05 AA14 AA24 AA34 AB10 BA03 CA03 CB03 CB04 CC01 CC03 DA03 DB18 DC03 FA05 FC04 GA07 GB07 JA20 KA20 LA26 LB02 LB09

Claims (10)

[Claims] 1. A substantially rectangular parallelepiped file case, comprising: a storage bottom portion 11, a front and rear storage front portion 12 and a left and right storage side portion 13 around the storage bottom portion 11, and a box-like shape opening upward. And two front and rear opening / closing sections 2 which are flexibly attached to the upper ends of front and rear storage front sections 12 of the front and rear storage sections 1. The open / close side portions 22, which are the side surfaces of the two open / close portions 2, are connected to each other so that the other open / close portion 2 also opens and closes. 2. A file case having a substantially rectangular parallelepiped shape. The file case has a storage bottom portion 11, and front and rear storage front portions 12 and left and right storage side portions 13 around the storage bottom portion 11, and has a box-like shape with an upper opening. And two front and rear opening / closing portions 2 which are flexibly attached to the upper ends of front and rear storage front portions 12 of the storage portion 1. 22, a rotatable connection plate 204 is attached below the two opening / closing side portions 22 on the same side surface. An attachment position of the connection plate 204 is a connection portion 203, and the opening / closing of the opening / closing portion 2 is performed from the connection portion 203. The connecting plates 204 are rotatably attached to each other at positions appropriately separated depending on the degree of the connection. 3. A substantially rectangular parallelepiped file case having the following configuration. The file case includes a box-shaped storage section 1 having a storage bottom section 11, front and rear storage front sections 12 and left and right storage side sections 13 around the storage section 1, and an upper opening, and front and rear storage sections in the storage section 1. It comprises two front and rear opening / closing parts 2 which are attached to the upper end of the front part 12 so as to be able to bend. The side surface of the opening / closing portion 2 is referred to as an opening / closing side portion 22, and a part of the opening / closing side portion 22 is always overlapped from the time of closing the opening portion to the time of opening. The one opening / closing side surface portion 22 has a convex portion 31 in this overlapping range.
And the opening / closing section 2 provided with the projection 31 is connected to the main opening / closing section 2.
a, the opening / closing side portion 22 is a main opening / closing side portion 22a, the other opening / closing portion 2 is a sub opening / closing portion 2b, and the opening / closing side portion 22 is a sub opening / closing side portion 22b. The sub-opening / closing side surface portion 22b has the convex portion 3 when closed.
A guide groove 32 having substantially the same width as the diameter of the convex portion 31 is provided at a position overlapping with the guide groove 1, and the guide groove 32 is extended into a guide groove range 36 from the lower line 35 to the bent portion 24a of the main opening / closing portion 2a. I do. The length of extension of the guide groove 32 is appropriately set according to the degree of opening and closing of the opening / closing section 2. The protrusion 31 is arranged inside the guide groove 32 so as to be movable in the guide groove 32. 4. The file case according to claim 3, wherein the file case has the following configuration. The protrusion 3 that moves in response to the opening and closing operation of the opening and closing unit 2
1, a side reinforcing plate 45 is provided on the entire moving range of the housing 1 and the storage side surface portion 13. A distance from the bent portion 24a to the convex portion 31 is defined as a convex portion distance 26, an arc shape having a radius corresponding to the convex portion distance 26 around a bending corresponding position 47 corresponding to the bent portion 24a, and A reinforcing guide groove 46 having substantially the same width as the convex portion 31 is provided in the moving range of the convex portion 31 by the side reinforcing plate 45.
To be provided. The protrusion 31 is arranged in the reinforcing guide groove 46 and is movable in the reinforcing guide groove 46. 5. The file case according to claim 3, wherein the file case has the following configuration. A structure including the guide groove 32 and the convex portion 31 is referred to as a connecting mechanism 3, and the connecting mechanism 3 is provided on both the left and right opening / closing side surface parts 22. An opening portion of the opening / closing portion 2 on the side where the opening / closing portions 2 are in contact with each other is provided around the opening portion of the main opening / closing portion 2a. A main support member 5a, which has a U-shape and is stronger than the case material that is the main material of the file case, is provided from one connection mechanism 3 to the other connection mechanism 3. In the main support member 5a, a portion provided on the opening / closing side surface portion 22 is referred to as a main support side surface portion 52, and the convex portion 31 of the connection mechanism 3 is attached to the main support side surface portion 52. A handle 51 for facilitating the carrying of the file case is attached to the main support member 5a. 6. The file case according to claim 5, wherein: the convex portion 31 and the main support side surface portion 52 are integrally formed; and the convex portion 31 is a main open / close side surface portion 22a and a sub open / close side surface. A means for penetrating the guide groove 32 provided in the portion 22b and for preventing the protrusion 31 from coming off from the inside of the file case. 7. The file case according to claim 5, wherein the file case has the following configuration. The upper surface of the sub-opening / closing section 2b is formed by the sub-opening / closing upper surface section
The sub-opening / closing upper surface portion 23 and substantially the entire opening are provided with a sub-supporting member 5b which is superior in strength to the case material which is the main material of the file case. When the opening / closing section 2 is closed, the main support member 5a overlaps with the sub support member 5b facing down. 8. The file case according to claim 7, wherein the file case has the following configuration. A recess is provided outside the main support upper surface portion 57a located on the main opening / closing upper surface portion 23a of the main support member 5a, and this is referred to as a main locking concave portion 63a. A recess is provided outside the sub-support upper surface 57b, and this is referred to as a sub-locking recess 63b. At the time of closing, the main locking concave portion 63a and the sub locking concave portion 63b are sandwiched integrally, and locking means 6 for controlling the opening operation of the opening / closing portion 2 is provided on one of the opening / closing upper surface portions 23. 9. The file case according to claim 8, wherein in the locking means 6, a position where the locking is released is an opening position, a position where the locking is performed is a closing position, and the opening position and the closing position. Between the main support upper surface portion 57a and the sub-support upper surface portion 57b in the closed position, and the locking device 6
1 wherein the cross-sectional shape of the inner wall is substantially the same. 10. The file case according to claim 1, wherein the file case has the following configuration. A slit width W2 of about 50 to 100% with respect to the file width W1 and a slit height H2 of about 0.5 to 10% with respect to the file height H1 are formed in the bent portion 24 at the upper end of the storage front portion 12. Is provided. The bending member 7 having excellent flexibility is arranged in the slit 71. The slit lower side 7 which is the lower side 42 in the slit 71
The bending member 7 is attached to the second member 2. The slit upper side 7 which is the upper side 40 in the slit 71
The bent member 7 is attached to the third member 3.