JP2015226700A - Paper storage case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper storage case in which a cover body is never separated from a box body even if the unexpected impact force is applied to the paper storage case in a closing state of the paper storage case, and the cover body can easily be separated from the box body during the opening and closing thereof.SOLUTION: A paper storage case 1 is configured from a cover body 2 and a box body 3, and has a substantially slim frame of a substantially inverted square frustum. The cover body 2 is formed in a tray structure having a lid flange part 7 of a length of 1/8-1/12 of the short side in the whole circumference. In the lid flange part 7 in the longitudinal direction on the short side, V-shaped lid recessed grooves 9, 9' crosses the lid flange part 7. The box body 3 is provided with a box cradle and the box recessed grooves abutted with the lid flange part 7 and the lid recessed grooves 9, 9'. The short sides of the front and back thereof are attached with elastic strings 4 in the position perpendicular to the box recessed grooves. Further, a curved concave for connecting the short sides of the front and back thereof in a bottom are provided on the extension. Multiple concave rectangular pieces connected with the concave are provided in the bottom.

Description

  The present invention relates to a separable storage case in which a paper lid and a box are connected with an elastic string, and in particular, accessories such as pens, seals, clips, business cards or SD cards, memory cards such as USB memory, etc. The present invention relates to a storage case to be stored.

  Conventionally, various storage cases in which a lid and a box are separable have been proposed. For example, Japanese Utility Model Publication No. 40-32913 (Patent Document 1 to be described later) states that “both side walls are inclined inward and the tangent to the bottom surface of the side wall where the pencil enters is rounded. In addition, a pencil packaging box is disclosed in which a rib housing projecting a rib near the upper ends of both side wall inner surfaces is fitted with a hollow recess lid fitted into the body portion. This pencil wrapping box is a pencil case that is "molded with a transparent plastic ... and shaped like a brush plate, and the body part is also molded with amber plastic (left column on page 1 of the same publication)." is there. This pen case is: “When the lid is tightened, the lid is pressed from both sides by the ribs on the inner wall of the body, and the lid does not easily come off from the body. Because it is recessed in the lower part, it will hold down the naturally contained pencil from the top, so the pencil will not be messy in the box, and the inside of the box will become narrower and the top will be wider The lid can be pressed well because it has a rounded part that touches the bottom bottom of the inner walls on both sides of the body, so it can be easily lifted when taking out the lower pencil. It can also be used as a pocket (right column on page 1 of the publication).

This prior art utilizes precise injection molding of plastic, and the “rib” corresponds to the lid collar portion of the present application. However, when an elastic string is applied to such a pen case, the elastic string slides down from the plastic lid. Also, if the elastic string is to be bent, the elastic string is broken by the plastic edge. On the other hand, when trying to make such a pen case with cardboard, the box itself is not strong enough, and precise injection molding like plastic is not possible, so the lid and box are closed with an elastic string. There is a drawback that the lid and the box are easily detached.

On the other hand, in order to prevent the lid and box from separating, “fix both ends of the elastic band to the middle part on both sides of the lid and rotate the elastic band to the outer bottom side of the container body to wind the lid and the container body together. A drawing material container lid fixing device (Japanese Utility Model Laid-Open Publication No. 62-27021 (Patent Document 2 described later)) which is pressure-bonded is well known. However, when a strong elastic band is used, a cardboard with low strength is easily deformed, and once deformed, there is a problem that the wrinkle does not easily return to its original state. On the other hand, when a weak elastic band is used, there is a problem that the lid and the box are separated and the writing instrument inside is spilled off.

Japanese Utility Model Publication No. 40-32913 Full text of Japanese Utility Model Publication No. 62-27021

  The present invention has been made in view of the above problems, and even when an impact force is applied to the paper storage case in the closed state of the paper storage case, the lid and the box are separated by the strong elastic force of the elastic string. Provided is a paper storage case in which the elastic force of the elastic string is weak at the time of opening and closing, and the two long side portions on the outside of the box can be easily pinched with fingers to easily separate the lid from the box For the purpose.

  As means for solving the above problems, the invention according to claim 1 is a substantially rectangular parallelepiped paper storage case (1) composed of a lid (2), a box (3), and an elastic string (4). ), The lid body (2) has a tray structure having a lid collar portion (7) having a length of 1/8 to 1/12 of the short side on the entire circumference, and is in the front-rear direction on the short side. The lid collar portion (7) has a V-shaped lid groove (9, 9 ') across the lid collar portion (7), and the box includes the lid collar portion (7) and the lid groove (9, 9). 9 ') is provided with a box pedestal (12) and a box groove (13, 13'), and an elastic string is attached to the front and rear short sides thereof in a direction perpendicular to the box groove, Further, a curved groove (17) for connecting the front and rear short sides (5, 5 ') at the bottom (15) is provided on the extension, and the bottom (15) is provided on the groove (17). A plurality of tied rectangular pieces (16, 16 ') are provided, and the elastic string (4) is fastened to the front and rear short sides (5, 5') at both ends, and the front short side (5 ) To the rear short side portion (5 ′) via the upper surface of the lid body, and is connected to the lid body (2).

In the invention according to claim 2, the elastic cord (4) of the short side portion (5, 5 ') of the box (3) is bent at an angle of a right angle or more and connected to the lid (2). The paper storage case according to claim 1.

The invention according to claim 3 is the paper storage case according to claim 1, characterized in that the paper storage case (1) is a substantially inverted quadrangular pyramid.

The invention according to claim 4 is the paper storage case according to claim 1, wherein the box has a thickness of 1.5 to 2.5 mm.

The invention according to claim 5 is characterized in that the elastic string (4) is attached to the center height of the short side portion (5, 5 '). It is a storage case.

The invention according to claim 6 is characterized in that the reverse apex angle of the short side part (5, 5 ') of the box (3) is 5 to 15 °. A storage case.

The invention according to claim 7 is the paper storage case according to claim 1, characterized in that the box (3) has a laminated structure.

The invention according to claim 8 is the paper storage case according to claim 1, wherein the number of the concave rectangular pieces (16, 16 ′) is three, five, or seven. is there.

The invention according to claim 9 is the paper storage case according to claim 1, characterized in that the depth of the tray portion (8) of the lid (2) is deeper than the depth of the lid groove. .

The invention according to claim 10 is the paper storage case according to claim 1, characterized in that the depth of the concave strip (17) is deeper than the depth of the concave rectangular piece (16, 16 '). It is.

In the present invention, the elastic cord is bent from the front short side portion to the rear short side portion through the upper surface of the lid body and connected to the lid body. It is to divide into. That is, even if the height of the V-shaped lid concave groove in the lid is small, when the distance is converted into the elongation rate for a short portion of the elastic cord, the elongation rate is large. Therefore, if an impact force is applied to the paper storage case in a state where the elastic string is bent, since the friction coefficient between the cardboard and the elastic string is large, the elastic part in the short part is difficult to extend, and the elastic string is extended in a short part and long. Can be divided into parts. Further, the elastic string can firmly press the lid groove by the extension of the short part. On the other hand, since the long elastic string on the tray is easy to stretch, it can be easily pinched with fingers. And when pulling slowly, since the elastic part of a short part is extended in conjunction with the elastic part of a long part, a lid can be opened easily. The paper storage case of the present invention is made by utilizing such a difference in elongation of elastic strings.

In the present invention, when the elastic cord on the short side portion of the box body is bent at an angle of a right angle or more and connected to the lid body, it is further possible to prevent the influence of the elongation of the short portion of the elastic cord on the long portion. I can do it well. In particular, it is particularly preferable that the paper storage case is a substantially inverted truncated pyramid because the lid can be easily separated from the box when there is no elastic string.

In addition, the lid has a tray structure with a lid collar on the entire circumference, as in the prior art, from a box to a pen, seal, clip, business card, SD card, memory card such as a USB memory, etc. This is to make it available as a tray for placing small items when they are taken out. Further, the lid collar portion preferably has a length of 1/8 to 1/12 of the short side. The reason why the length is within this range is to hold the lid in the horizontal direction by the elastic string. That is, the length of 1/12 of the short side is preferable so that small items are not spilled from the gap between the lid and the box by the receiving table that comes into contact with the outer side of the flange of the box when integrated with the box. . However, if the brim portion is too long, the storage case becomes bulky, so that the length is preferably 1/8 of the short side. Moreover, in order to give rigidity to the lid, the thickness of the lid is preferably 1.5 to 2.5 mm in the present invention.

Further, in the present invention, the reason why the V-shaped lid groove crosses the lid collar portion is to press the lid collar portion with a short elastic string. In this case, since the elastic cord has a large coefficient of friction with the paper, it is difficult to slip on the lid collar, and a large spring compression force acts in the vertical direction of the lid so that the elastic cord can close the lid firmly. .

In the present invention, the box support and the box groove that are in contact with the lid collar and the cover groove are provided in the box in order to fit together the cover and the box. Thereby, it is possible to prevent small items from spilling out from the gap between the lid and the box even at the two lid collars. At this time, if the depth of the lid tray is deeper than the depth of the lid groove, the elastic string floats on the tray at the end of the box groove, making it easy to remove it. preferable. Furthermore, this case is preferable because it can be simply fixed with a writing instrument or the like sandwiched between elastic strings in a floating state.

Further, in the present invention, since the curved short streak connected at the bottom is provided on the short side part of the front and back of the box body, when the elastic string is removed and the box body is separated from the lid body, The elastic cord is attached to the concave strip with a weak elastic force, so when closing the lid to the box, the elastic cord can be easily recessed. And can be fitted into the lid groove of the lid. The bottom ridges become ridges inside the box, and when the depth of the ridges is deeper than the depth of the concave rectangular pieces, the bottom ridges may become partition plates that bisect the small items inside. it can. The curved shape of the concave stripe is preferably a semicircular shape.

In the present invention, since the bottom is provided with a plurality of concave rectangular pieces connected to the recess, the bottom can be reinforced with the recess. This concave rectangular piece forms irregularities on the bottom surface, so it provides a space that is easy to remove when storing writing instruments such as pencils and ballpoint pens in the box, and when storing small accessories such as clips and button batteries It becomes a partition plate which further subdivides the groove. Further, if the width of the three concave rectangular pieces is adjusted to the size of a business card, the paper storage case can be a business card box that can be easily taken out. In the present invention, if the number of concave rectangular pieces is an odd number of three, five, or seven, the position where the finger is sandwiched is almost at the center, so the lid is lifted upward and separated with a small force. It can be made easier. Moreover, if the left and right long side concave pieces are a rough texture with a horizontal pattern, it is easier to pick and hold.

In the present invention, 3 to 6 trapezoidal concave pieces, which are shallowly embossed inwardly on the outer sides of the left and right long sides, are provided at equal intervals. This is to reinforce the long side part. Further, if the thickness is 1 to 3 mm, the box can be made rigid even if it is recycled paper. Preferably, the thickness of the box is 1.5 to 2.5 mm. Also, if the box has a laminated structure with compressed recycled paper, the operation of pressing the left and right long sides of the box from the outside to the inside and removing the lid is repeated thousands to tens of thousands of times. Even so, the rigidity of the box can be maintained. Since the deformation due to repeated bending of the box body inwards, the gap between the box body and the lid body remains small even if the box body is twisted. Furthermore, in the case of a laminated structure, the mechanical strength can be increased, and aesthetic effects such as paper texture and texture can be changed between the inside and the outside. In addition, when the concave piece is trapezoidal, it is easy to put a finger on it, making it easier to pick the box with one thumb and forefinger or middle finger, and pressing with the thumb and forefinger etc., the lid rises and takes out the lid It becomes easy.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, preferred embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

  1 to 3 are views showing an embodiment of a paper storage case (1) according to the present invention. FIGS. 1 and 2 show a writing instrument case, and FIG. 3 shows a business card case. FIG. 1 is a perspective view of a paper storage case (1), and FIGS. 1 (a) and 1 (b) show states before and after the lid and box are closed. FIG. 2 shows a front view of the bottom of the box. A description will be given based on these drawings.

The paper storage case (1) is composed of a lid (2) with a thickness of 2 mm and a box (3) with a thickness of 2 mm. 5, 5 ′) via fasteners (6, 6 ′).

The lid (2) is a 65 mm × 185 mm × 6 mm rectangle with rounded corners, and a lid collar (7) having a width of 6 mm on the front side is provided on the entire circumference. The inside of the lid collar portion (7) is a smooth tray portion (8) recessed by 5 mm. A lid groove (9, 9 ') is provided outside the central portion of the lid collar (7) on the front and rear short sides (5, 5') of the box (3). Corresponding to 9 and 9 '), a pressed lid protrusion (10, 10') is formed on the inner side.

The box (3) is a substantially inverted quadrangular frustum whose left and right long sides (11, 11 ') have an apex angle of 12 °, the top surface is a 65 mm × 184 mm rectangle with rounded corners, and the bottom surface also has rounded corners. It is a 53mm x 172mm rectangle with a height of 33mm. A box holder (12) having a width of 5 mm that abuts on the lid collar (7) is provided on the upper surface, and a box groove (13, 13) into which the lid groove (9, 9 ') is fitted into the box holder (12). 13 ′). On the outside of the left and right long sides (11, 11 '), five trapezoidal concave pieces (14, 14') are provided at equal intervals, symmetrically left and right, and shallowly embossed to the inside by 2mm. It has been. The top sides of the concave pieces (14, 14 ') are all 8 mm, and the bottom sides are both 12 mm.

This base is directly connected to five 12 mm rectangular concave rectangular pieces (16, 16 ') which are shallowly embossed outside the bottom (15). Further, all of the five concave rectangular pieces (16, 16 ') are connected to a single deeply embossed 8-mm concave strip (17) that crosses the center of the bottom portion (15). Both ends of the recess (17) extend in a curved shape up to the front and rear short sides (5, 5 ').

Next, the usage method or operation of the present invention will be described.
First, a case where the lid (2) is separated from the box (3) will be described.
The elastic string (4) on the lid (2) is hooked on the concave line (17) of the box bottom (15). The elastic string (4) has a low tension and can be easily hooked. Next, when the trapezoidal recessed base piece (14, 14 ') at the center of the left and right long sides (11, 11') is pinched with the thumb and middle finger of one hand, the lid (2) is moved upward. And can be slid down from the box (3). Thereafter, necessary small items inside the box (3) can be taken out and placed on the tray portion (8) of the lid (2).

Next, the case where the lid (2) is closed to the box (3) will be described.
Basically, the reverse operation is performed when the lid (2) is separated from the box (3). That is, the elastic string (4) in the concave strip (17) of the box bottom (15) is fitted in the lid concave groove (9, 9 ') of the lid (2). At this time, since the elastic string (4) is fixed in a curved shape, its tensile force is weak, and the elastic string (4) can be easily removed from the recess (17) of the box bottom (15). . Further, since the distance between the fasteners (6, 6 ') of the elastic cord (4) and the lid collar portion (7) is short, the removed elastic cord (4) has a weak tensile force, so that the lid collar can be comfortably used. Part (7).

  As mentioned above, although one suitable embodiment of the present invention was described in detail, it cannot be overemphasized that the present invention is not limited to the above-mentioned embodiment.

The paper storage case according to the present invention has the following effects.
When the lid is closed, even if an elastic string with weak tensile force is used, the elastic string is bent at the connecting part between the box and the lid, so the strong pressing force of the elastic string of the box with a short length The lid can be pressed well. For this reason, even if the storage case falls down unexpectedly in the bag, small items do not spill out from the gap between the lid and the box.
In addition, since the elastic cord holding the lid is longer and the pressing force is weak, the writing instrument or the like can be sandwiched between the tray of the lid and the elastic cord with the lid closed.
Further, when the operation of separating the lid from the box is repeated, the stacked paper in the trapezoidal concave piece at the center of the box becomes soft and the life of the box is reached. However, since the long side portion of the box body is deformed inward, it can be covered with a lid body that does not deform, and the life of the box body can be extended.
In addition, since all the parts are made of paper such as recycled paper, it is possible to provide a paper storage case that is inexpensive and environmentally friendly.
Further, when the lid is separated from the box, the lid can be used as a tray for storing small items.

It is a perspective view of the paper storage case which concerns on this invention. It is a front view of the box bottom part concerning the present invention. It is a perspective view of the business card case which concerns on this invention.

DESCRIPTION OF SYMBOLS 1 ... Paper storage case 2 ... Lid 3 ... Box 4 ... Elastic string 5, 5 '... Short side part 6, 6' ... Fastener 7 ... Lid lid part 8 ... Tray part 9, 9 '...... Love groove 10, 10' ... Long protrusion 11,11 '... Long side portion 14,14' ... Recess piece 15 ... Bottom portion 16, 16 '... Recessed rectangular piece 17 ... concave

Claims (10)

In a substantially rectangular parallelepiped paper storage case (1) composed of a lid (2), a box (3) and an elastic string (4), the lid (2) is 1/8 to 1/1 of the short side. 12 is a tray structure having a lid collar portion (7) having a length of 12 on the entire circumference, and the lid collar portion (7) in the front-rear direction on the short side thereof has a V-shaped lid groove (9, 9 '). ) Crosses the lid collar portion (7), and the box body comes into contact with the lid collar portion (7) and the lid concave groove (9, 9 ') and the box concave groove (13, 13). ') Is provided, and an elastic string is attached to the short side portion before and after the front side in a direction perpendicular to the box groove, and the short side portion (5, 5') before and after the extension is extended to the bottom portion ( 15), a curved recess (17) connected to the recess (17) is provided, and a plurality of concave rectangular pieces (16, 16 ′) connected to the recess (17) are provided on the bottom (15). string( ), Both ends thereof are fastened to the front and rear short sides (5, 5 '), bent from the front short side (5) to the rear short side (5') via the top of the lid, and the lid ( 2) A paper storage case which is connected to the paper storage case. The elastic cord (4) of the short side part (5, 5 ') of the box (3) is bent at an angle of a right angle or more and connected to the lid (2). Paper storage case. The paper storage case (1) according to claim 1, wherein the paper storage case (1) is a substantially inverted square frustum. 2. The paper storage case according to claim 1, wherein the box (3) has a thickness of 1.5 to 2.5 mm. The paper storage case according to claim 1, characterized in that the elastic string (4) is attached to the central height of the short side part (5, 5 '). 2. The paper storage case according to claim 1, wherein a reverse apex angle of the short side portion (5, 5 ′) of the box (3) is 5 to 15 °. 2. The paper storage case according to claim 1, wherein the box (3) has a laminated structure. The paper storage case according to claim 1, wherein the number of the concave rectangular pieces (16, 16 ') is three, five, or seven. The paper storage case according to claim 1, wherein the depth of the tray portion (8) of the lid (2) is deeper than the depth of the lid concave groove. 2. The paper storage case according to claim 1, wherein the depth of the concave stripes (17) is deeper than the depth of the concave rectangular pieces (16, 16 ′).

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