JP2007098725A - Box file - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the technology of a box file, which enables a lid part to be firmly and temporarily fixed to a file body, and which can effectively exert the shape retention function of the file body by the lid part, the anti-deformation function of the lid body itself, etc. <P>SOLUTION: This box file comprises the box-shaped file body 1 with an opened top surface, the lid part 2 for opening/closing a top opening 11, and a bottom lid 3. The lid part 2 is equipped with a lid body 21 which is provided in the file body 1 via a thin-walled hinge A, a flap part 22 which is provided on the free-end side of the lid body 21 via a thin-walled hinge B, and two engaging tongue pieces 23 and 23 which are provided at an interval in the longitudinal direction of the flap part 22. An edge part of the opening 11 of the file body 1 is provided with engaging ports 12 and 12 into which the engaging tongue pieces 23 and 23 are each inserted in the closed position of the lid part 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a synthetic resin box file in which a box-shaped file main body having an upper surface opened is provided with a lid for opening and closing the upper surface opening.

  This type of box file can be broadly divided into those that can be folded and those that cannot. An example of a foldable box file is described in Patent Document 1. The box file described in the document is configured to be capable of one-touch assembly and one-touch folding using cardboard processed into a shape corresponding to the developed view.

  That is, as shown in FIGS. 8 to 10, the box file is formed by folding a front piece 102, a rear piece 103, a left piece 104, a right piece 105, and a bottom cover 106 to form a box body 101 having an upper surface opening. Yes. Then, a notch 102A is formed at the upper end of the rear piece 102, and a front lid piece 108B, an upper lid piece 108A, and a locking piece are formed on the lower side 102B of the notch 102A via folding lines E, F, G, respectively. 109.

  With this configuration, dust intrusion into the box body 101 is prevented without impairing the functions of one-touch assembly and one-touch folding.

  Furthermore, a hooking tongue piece 181 that abuts on the upper edge of the rear piece 103 in the closed state shown in FIG. 10 is provided at the boundary portion between the upper surface lid piece 108A and the locking piece 109, and the longitudinal direction of the locking piece 109 By providing an insertion tongue piece 109A that can be inserted into the notch 111 provided in the rear piece 103 at the center of the upper part, it is possible to prevent the upper surface cover piece 108A from entering the box file.

When the lid piece 108 is not used as a lid, it can be stored in the box 101 as shown in FIG. When the box 101 is folded, the box 101 can be deformed into a rhombus by pushing up the bottom lid 106 with fingers or the like, and can be folded flat by being deformed as it is.
Japanese Unexamined Patent Publication No. Hei 8-03980

  However, when such a foldable box file is formed by using a flexible thin plate having excellent durability instead of cardboard, the surface is slippery, as described in Patent Document 1, It is difficult to close the lid piece 108 and insert one insertion tongue piece 109A provided at the center of the locking piece 109 in the longitudinal direction into the cut portion 111 to securely fix the lid piece 108 to the box body 101. There is a problem that the lid part is also easily deformed.

  Therefore, the problem of the present invention is that the lid can be firmly fixed to the file body, and the shape maintaining function by the lid of the file body, the deformation preventing function of the lid itself, etc. can be effectively exhibited. It is to provide the technology of the box file that can be done.

In order to solve the above-mentioned problems, the present invention employs the following means.
The present invention is a box file in which a box-shaped file body having an upper surface opened is provided with a lid for opening and closing the upper surface opening, and the lid is provided on the file body via a thin hinge. A file body comprising a lid body, a flap portion provided on the free end side of the lid body via a thin hinge, and two engagement tongue pieces provided at intervals in the longitudinal direction of the flap portion The edge portion of the opening portion is provided with an engagement port into which each engagement tongue piece is inserted at the closed position of the lid portion.

  According to the present invention, two engagement tongue pieces are provided at intervals in the longitudinal direction of the flap portion, and both engagement tongue pieces are respectively inserted into the corresponding engagement ports to be in a closed state. The lid portion can be firmly temporarily fixed to the file body, and thereby, the shape maintaining function by the lid portion of the file body, the deformation preventing function of the lid portion itself, and the like can be effectively exhibited. These functions can be exhibited more effectively in a box file made of a synthetic resin made of a plastic that is slippery, soft, and soft, such as polypropylene resin.

  In the present invention, each engaging tongue side is preferably formed by a notch in the flap portion, and the flap portion preferably has a configuration in which a portion excluding each engaging tongue piece is continuous in a plate shape. In this way, when the portions excluding the engaging tongue pieces of the flap portion are continuously formed in a plate shape and are formed in a so-called connection, if the flap portion is pressed slightly with the fingers when closed, The joint tongue piece is cut and raised relatively from the flap portion. Therefore, the operation of inserting the flap portion into the file body and the operation of inserting each engagement tongue piece into the engagement port can be easily performed.

  In the present invention, the file body is formed in a box shape having an upper surface opening by folding the front material, the rear material, the left and right side materials, and the bottom lid material from the thin hinge portion, and the lid body is the upper side of the rear material. It is desirable that each engagement port is formed by a notch provided on the inner surface near the upper side of the front member. Thus, when each engagement port is formed by cutting, the force of holding the engagement tongue piece in the engagement port can be increased by utilizing the elasticity of the front surface material. Further, by providing each engagement port on the inner surface near the upper side of the front member, an operation of inserting the engagement tongue piece into each engagement port can be facilitated.

  In the present invention, the front member is provided with a handle hole at a position near the upper side thereof, and a portion corresponding to the handle hole in the free end portion of the flap portion is an upper edge portion of the handle hole in the closed state or It is desirable to extend near the upper edge. In this case, when the fingers are put into the handle hole in the closed state and the box file is held, the flap part is held at the same time in the form of being pressed by the fingers on the inner surface side of the front material. It is possible to prevent the lid from coming off during carrying.

  In the present invention, it is desirable that the thin hinge of the flap portion and the thin hinge of each engaging tongue piece are provided in a line along the free end of the lid body. In this case, the thin-walled hinge of the flap portion and the thin-walled hinge of each engaging tongue piece can be formed by a linear thin-walled hinge excellent in workability (moldability). Furthermore, the folding operation can be performed only on the flap portion independently of each engaging tongue piece.

  According to the box file of the present invention, the lid can be firmly fixed to the file body, and the shape maintaining function by the lid of the file body and the deformation preventing function of the lid itself can be effectively exhibited. be able to.

Hereinafter, an embodiment in which the present invention is applied to a synthetic resin box file will be described with reference to the drawings. FIG. 1 is a perspective view of a box file according to an embodiment of the present invention. FIG. 2 is a perspective view of a state in which the lid is bent inward. FIG. 3 is a perspective view showing an operation example for closing the lid. FIG. 4 is a development view.

(Example)
The box file of this embodiment includes a box-shaped file main body 1 having an upper surface opened, a lid portion 2 for opening and closing the upper surface opening portion 11, and a bottom lid 3. The file body 1, the lid 2, and the bottom lid 3 are formed of a thin and weak polypropylene resin plate having a shape corresponding to the development shown in FIG.

  The lid 2 includes a lid main body 21 provided on the file main body 1 via a thin hinge A, a flap portion 22 provided on the free end side of the lid main body 21 via a thin hinge B, and a flap portion 22 thereof. Are provided with two engaging tongues 23, 23 provided at intervals in the longitudinal direction. Engagement ports 12 and 12 (see FIG. 2) into which the engagement tongue pieces 23 and 23 are respectively inserted in the closed position of the lid 2 are provided at the edge portion of the opening 11 of the file body 1.

  In this embodiment, the engaging tongues 23 and 23 of the lid part 2 are formed by U-shaped notches 23a and 23a of the flap part 22, respectively. Thereby, the flap part 22 is formed in what is called the connection with which the part except each engagement tongue piece 23 and 23 continued in plate shape. Further, the thin-walled hinge B of the flap portion 22 and the thin-walled hinges B of the engaging tongue pieces 23 and 23 are provided in a line along the free end of the lid body 21. That is, the thin-walled hinge B of the flap portion 22 and the thin-walled hinges B of the engaging tongues 23 and 23 extend along the free end of the lid body 21 over the entire length of the lid body 21 (in the direction of arrow A). It is formed by one linear thin-walled hinge.

  Further, the front surface member 13 of the file main body 1 is provided with a handle hole 5 at a position near the upper side thereof. And the part corresponding to the handle hole 5 among the free end parts of the flap part 22 is made into the shape extended to the upper edge part of the handle hole 5 or the upper edge part in a closed state. In other words, the height h of the central portion in the longitudinal direction of the flap portion 22 is formed to be substantially equal to the height from the upper side of the front member 13 to the handle hole 5.

  The upper edge of the handle hole 5 is provided with an inwardly bent piece 5a extending elongated along the upper edge. The bent piece 5a functions as an allowance portion for thickening the upper edge of the handle hole so as not to hurt when the finger is put on the handle hole 5 and the file body 1 is held.

  Each engagement port 12, 12 into which each engagement tongue piece 23, 23 is inserted and temporarily fixed is formed by a notch provided on the inner surface side near the upper side of the front member. Further, as shown in FIG. 2, minute engagement pieces 12a and 12a are formed in the respective engagement openings 12 and 12 in a state in which a folded piece 13b described later is fixed inward. Thereby, it is considered that the minute protruding pieces 12a and 12a function as a guide for facilitating insertion of the corresponding engaging tongue pieces 23 and 23.

  On the other hand, the file body 1 includes a front member 13, a rear member 14, a left member 15, a right member 16, and a bottom cover 3 that constitute four side wall parts, as shown in the development view of FIG. The thin hinges C, D, E, F, G, H, I, and J are folded together to form a box shape with an upper surface opening. The lid body 21 of the lid portion 2 is provided on the upper side of the rear member 14 via a thin hinge A.

In this embodiment, the thin-walled hinges C, D, E, and F in which the adjacent face members of the front member 13, the rear member 14, the left side member 15, and the right side member 16 are connected to each other so as to be bent are 5 mm in this embodiment. A pair is provided in parallel with an interval in the front and rear. Thereby, the four corners of the file body 1 are formed into smooth corners. In addition, a semicircular cutout 4 is provided at the center of the upper side of the front member 13 and is used for inserting a fingertip of the thumb when the lid 2 in the closed state is opened.

  On both sides of the upper side of the rear member 14, diagonal notches 14a and 14a extending in an oblique direction approaching each other from the upper side are provided. The rear member 14 is provided with a thin-walled hinge A1 extending in a direction in which the ends of the oblique cuts 14a and 14a are connected to each other. Thereby, between the thin hinge A and the thin hinge A1, the strip | belt-shaped part 14b extended in the longitudinal direction (arrow A direction in FIG. 1) of the cover main body 21 is formed. As shown in FIG. 2, the belt-like portion 14b can be easily put in and out of a document or the like in a state in which the lid 2 is folded into the file main body 1, and the lid 2 can be retrieved as shown in FIG. Is opened to the outside of the rear face member 14 so that documents can be taken in and out and searched easily.

  As shown in FIG. 4, a connection piece 16 a with the front surface member 13 is provided on the right side surface material 16 of the file main body 1 through a thin hinge F. When the file body 1 is folded, the connection piece 16a is folded inside the front member 13 and integrated by ultrasonic welding or the like. Further, on the upper side of the front member 13, the left side member 15, and the right side member 16, folded pieces 13b, 15b, and 16b that are folded back to the inner surface side through thin portions K, L, and M, respectively, are provided. . These folded pieces 13b, 15b, and 16b are similarly ultrasonically welded and integrated. These folded pieces 13b, 15b, and 16b exhibit the reinforcing function of the corresponding portions, and are considered so that the upper side portion of the file body 1 is formed in a smooth R.

  The bottom lid 3 of the file body 1 is composed of four lid members having a first bottom lid member 31, a second bottom lid member 32, a third bottom lid member 33, and a fourth bottom lid member 34, which are one bottom. It is configured to be combined as a lid. That is, the engagement piece 31 a is provided in the first bottom cover member 31, and this engagement piece 31 a is inserted into the slot-shaped cut 32 a formed in the second bottom cover member 32 and combined. The third bottom cover member 33 is provided with an engagement piece 33a, and this engagement piece 33a is inserted into a slot-shaped cut 34a formed in the fourth bottom cover member 34 and combined.

  Further, the first bottom cover member 31 is provided with an insertion piece 31b having a small protruding length, and this insertion piece 31b is inserted into a slot-shaped cut 33c formed in the third bottom cover member 33 and combined. Further, the third bottom cover member 33 is provided with an insertion piece 33b having a small protruding length, and this insertion piece 33b is inserted into a slot-shaped cut 31c formed in the first bottom cover member 31 and combined.

  Therefore, the file main body 1 having the bottom cover 3 to which the engagement piece or the insertion piece is combined in this way is configured to be assembled and folded by a simple operation (see FIG. 6). Thereby, the bottom cover 3 in the assembled state exhibits the action of maintaining the bottom shape of the file body 1. In the figure, reference numeral 6 denotes a finger hole and 7 denotes a mount.

  According to this embodiment, two engagement tongue pieces 23 are provided at intervals in the longitudinal direction of the flap portion 22, and both engagement tongue pieces 23 are respectively inserted into the corresponding engagement openings 12 and closed. Therefore, the lid portion 2 can be firmly and temporarily fixed to the file main body 1. Thereby, the shape maintenance effect | action by the cover part 2 of the file main body 1, the deformation | transformation prevention effect | action of the cover part 2 itself, etc. can be exhibited effectively. Further, since the flap portion 22 is provided so as to reach the entire length of the free end of the lid main body 21, the flap portion 22 exhibits an effect of increasing the rigidity of the lid portion 2 as a whole. These effects can be exhibited more effectively when formed using a polypropylene resin that is slippery, soft, and weak as in the embodiment.

  Further, since the portions excluding the engaging tongue pieces 23, 23 of the flap portion 22 are continuously formed in a plate shape and are formed in a so-called connection, for example, as shown in FIG. If the fingers are pressed with fingers and bent slightly inward, the engaging tongues 23 and 23 are cut from the flap portion 22 relatively. That is, when the flap portion 22 is pushed and bent inward, the free ends of the engaging tongue pieces 23 and 23 are relatively separated from the flap portion 22. Therefore, as shown in FIG. 5, the operation of inserting the flap portion 22 into the file body 1 and the operation of inserting the engagement tongue pieces 23 and 23 into the engagement ports 12 and 12 can be easily performed.

  Further, since each engagement port 12, 12 is formed by cutting into the front member 13, the force of holding the engagement tongue piece 23 in the engagement port 12 is increased by utilizing the elasticity of the front member 13. Can do. At this time, as shown in FIG. 5, each of the engaging tongue pieces 23, 23 is sandwiched between the reinforcing piece 13 b and the front piece 13 which are bent and welded to the inside of the front member 13. The force for holding the engaging tongue piece 23 can be sufficiently increased. Therefore, also from this point, the effect of firmly fixing the lid 2 to the file body 1 can be enhanced. Further, by providing each engagement port 12, 12 on the inner surface near the upper side of the front member 13, the operation of inserting the engagement tongues 23, 23 into each engagement port 12, 12 can be facilitated.

  Moreover, since the part corresponding to the handle hole 5 among the free end parts of the flap part 22 is set to reach the upper edge part of the handle hole 5 or close to the upper edge part in the closed state, the closed state When the user puts a finger into the handle hole 5 and holds the box file, the flap portion 22 is held at the same time in the form of being pressed by the fingers on the inner surface side of the front material 13, so that the lid portion 2 can be used when carrying the box file. Can be prevented from coming off easily.

  Further, since the thin-walled hinge B of the flap portion 22 and the thin-walled hinges B of the engaging tongue pieces 23, 23 are provided in a line along the free end of the lid body 21, the thin-walled hinge B of the flap portion 22 The thin-walled hinge B of the tongue piece can be formed by a linear common thin-walled hinge excellent in workability (moldability). Moreover, only the flap portion 22 can be bent independently of the engaging tongue pieces 23 and 23.

  In the box file of the embodiment, when the lid portion 2 is opened and closed, the lid portion 2 is gripped by pressing the flap portion 22 inward with a thumb or the like as shown in FIG. When closing, the thumb may hit the upper side of the front member 13. Considering this point, for example, as shown in FIG. 7, the semicircular cutout 4 provided on the upper side of the front member 13 is formed large enough for the entire thumb to enter, so that the lid 2 can be opened and closed conveniently. You can also.

It is a perspective view of the open state of the box file concerning the example of the present invention. It is the perspective view of the state which bent the cover part of the box file which concerns on the Example of this invention inside. It is a perspective view which shows the example of operation which makes the cover part of the box file which concerns on the Example of this invention a cover state. It is an expanded view of a box file according to an embodiment of the present invention. It is a partially cutaway perspective view of the box file in a closed state according to the embodiment of the present invention. The box file which concerns on the Example of this invention is shown, The (a) is a rear view, (b) is a front view. It is a perspective view of a box file according to another embodiment of the present invention. It is a perspective view of the open state which shows the conventional box file. It is a perspective view of the state which bent the lid piece of the conventional box file inward. It is a perspective view of the state where the lid piece of the conventional box file was closed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 File main body 11 Upper surface opening part 12 Engagement port 13 Front surface material 14 Rear surface material 15 Left side surface material 16 Right side surface material 2 Lid part 21 Lid main body 22 Flap part 23 Engagement tongue piece AM

Claims (5)

It is a box file made of synthetic resin in which a lid for opening and closing the upper surface opening is provided on the box-shaped file body whose upper surface is opened,
The lid portion includes a lid body provided on the file body via a thin hinge, a flap portion provided on the free end of the lid body via a thin hinge, and an interval in the longitudinal direction of the flap portion. Two engaging tongues provided at the same time,
A box file in which an edge of the opening of the file body is provided with an engagement opening into which each of the engagement tongue pieces is inserted in the closed position of the lid.   2. The box file according to claim 1, wherein each of the engaging tongue pieces is formed by a cutout of the flap portion, and a portion of the flap portion excluding the engaging tongue pieces is continuous in a plate shape.   The file body includes a front member, a rear member, left and right side members, and a bottom cover member, which are folded together from a thin hinge portion to form a box shape having an upper surface opening. The box file according to claim 1, wherein each engagement port is formed by a notch provided on an inner surface side near the upper side of the front material.   The front member is provided with a handle hole at a position near its upper side, and a portion corresponding to the handle hole among the free end portions of the flap portion is an upper edge or upper edge of the handle hole in the closed state. The box file according to claim 3, wherein the box file extends near a section.   The box file according to any one of claims 1 to 4, wherein the thin-walled hinge of the flap portion and the thin-walled hinge of each of the engaging tongue pieces are provided in a line along a free end of the lid body.

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