JP3227256U - Folding bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding bag which is rolled up in a rectangular flat shape only by tensioning both side portions from a use state. SOLUTION: A handle opening D including a standing portion f formed along a pair of short sides of a rectangular sheet material and a vertical bisector of a long side of the sheet material as a symmetry axis CL are opposed to each other. Folding ends 6 formed on both sides and folded back from each other at equal intervals from the axis of symmetry CL so that the opening D of the handle abuts or comes close to the axis of symmetry CL, and the opening of the handle 6 from both sides. Condensing end that is sealed in a state in which a storage portion B formed by winding a plurality of winding folding lines RL1 and RL2 toward the portion D and both side portions in the longitudinal direction of the stored storage portion B are overlapped with each other. And a portion C, and the storage end portion B is wound into a rectangular flat shape and folded by tensioning the focusing end portion C in a direction of pulling it away from the use state. [Selection diagram] Figure 1

Description

The present invention relates to a folding bag that is convenient to carry, and more particularly to a folding bag that can be formed into a rectangular flat shape only by tensioning the two sides in a direction away from the state of use.

Various proposals have been made for a folding bag which is made of a sheet material and can be folded into a small size in consideration of carrying when not in use.

As an example of such a bag, it is made of a sheet material, and can be folded into a predetermined rectangular flat band shape with both ends in the longitudinal direction closed by simply pulling in the direction of separating both ends after use. An enclosure, in which the enclosure has a strip shape, a widthwise central portion or one side edge extending linearly from one end to the other end, and an opening for inserting and removing an object. And an envelop body having a bellows structure, which is located in one half and the other half of the opening with the opening sandwiched therebetween, and is formed of a plurality of pleats formed by repeating mountain folds and valley folds with a predetermined width. An enclosure including a main body has been conventionally known (see Patent Document 1).

Also, a belt having a small, expandable, single pocket pouch, the pouch having fabric and pleats that expand asymmetrically according to the contents, such that when the pouch is empty, the pleats are configured to fold the fabric in an overlapping configuration. Secured against the belt using a pouch that can stay snug against the wearer's body when in use and securely holds small objects and can be expanded to hold larger objects A belt having a is also conventionally known (see Patent Document 2).

International Publication No. 2017/033902 Pamphlet Japanese Patent Publication No. 2010-517724

In the foldable enclosure described in Patent Document 1, although both ends in the longitudinal direction can be closed by simply pulling the both ends in a direction of separating after use, when the enclosure body having a bellows structure is produced. In addition, it is necessary to heat press the pleats so that the pleats do not disappear, and there is a problem in that it costs a lot to create a foldable envelope.

Further, in the belt having the pouch described in the above-mentioned Patent Document 2, when the pouch is made, a heat press is not required for the pleats, but as a material for making the pouch, a fabric having elasticity in a direction intersecting the direction of the belt. Therefore, there is a problem in that it costs much to manufacture a belt having a pouch, as in Patent Document 1 above.

The present invention has an object to solve the above problems, and a single rectangular sheet material is rolled up from a folded end, is made without using a heat press, and is tensioned in a direction in which both sides are separated from a use state. Aiming to provide a folding bag that is simply rolled into a rectangular flat shape.

In order to solve the above problems, the present invention is a folding bag that is rolled up into a rectangular flat shape as a folding bag, and is formed by folding a pair of short sides of a rectangular sheet material in parallel at a predetermined interval. So that the handle opening including the raised portion and the opposite handle opening that are opposed to each other with the vertical bisector of the long side of the sheet material as the axis of symmetry contact or come close to each other on the axis of symmetry. A folding end formed on both sides and folded back at equal intervals from the axis of symmetry, and a storage formed by winding the folding ends from both sides toward the handle opening while forming a plurality of winding folding lines. And a converging end that is sealed in a state where both sides in the longitudinal direction of the rolled-in accommodating part are overlapped with each other. The part is rolled up and folded.

Further, as an embodiment of a folding bag, the handle opening has a configuration having a handle portion formed along the pair of short sides, and the handle portion has the pair of short sides. A configuration having a cutout opening formed nearer is adopted, and the storage section has an internal pocket formed in parallel with the handle opening.

The folding bag of the present invention uses a heat press by preparing one rectangular sheet material by adopting the above configuration and sequentially winding it from the left and right folding ends around the axis of symmetry. It can be created without folds, and the storage part can be rolled up and folded into a rectangular flat shape simply by tensioning the focusing end part away from the use state.

It is a figure which shows the folded state of the folding bag|bag of the 1st Example which concerns on embodiment of this invention, (a) is a front view, (b) is an XX direction arrow sectional schematic view of (a). is there. It is a top view showing the development state of the sheet material which creates the folding bag of the 1st example concerning an embodiment. It is a perspective view which shows the process of folding the sheet|seat material of FIG. It is a figure which shows the state which winds up the sheet|seat material folded from the process of FIG. 3, (a) is a perspective view which shows the state which was wound twice, (b) is a perspective view which shows the state which was wound 3 times. It is a perspective view which shows the finishing process of the folding bag|bag of the 1st Example which concerns on embodiment, (a) is a perspective view which shows the state which sewn the side edge part, (b) is a tape-shaped material at a side edge part. It is a perspective view showing a state of sewing. It is a perspective view which shows the use condition which expanded the folding bag|bag of the 1st Example which concerns on embodiment. It is explanatory drawing which shows the procedure at the time of folding the folding bag|bag of the 1st Example which concerns on embodiment, (a) is a figure which shows the state which tension|tensiles in the direction which pulls apart the convergence end part of both ends, (b) is a two-fold It is a figure which shows the state which winds up the storage part made into. It is a top view showing the development state of the sheet material which creates the folding bag of the 2nd example concerning an embodiment. It is a top view showing the development state of the sheet material which creates the folding bag of the 3rd example concerning an embodiment. It is a figure which shows the folding bag of the 3rd Example which concerns on embodiment, (a) is a front view which shows a folded state, (b) is a perspective view which shows the expanded use state.

Next, a folding bag according to an embodiment of the present invention will be described with reference to the drawings.
In the following description, when viewed from the front view of FIG. 1A, the vertical direction is “up/down”, the horizontal direction is “left/right”, and the front-back direction is “front/back”.

In FIG. 1, A is a folding bag in a folded state, B is a storage unit folded into a rectangular flat shape, and C is a converging bundle in which both sides in the longitudinal direction of the storage unit B are stacked. An end portion, D, is provided at the innermost side of the storage portion B, and a handle opening portion for inserting/removing storage articles, and E is a binding portion for binding the storage portion B in a state of being folded in a small size in the longitudinal direction.

As shown in FIG. 2, the storage portion B and the handle opening D are made of one rectangular sheet material 1 having long sides 2 and short sides 3. In the present embodiment, the material of the sheet material 1 is used. As the fabric, a non-stretchable fabric of polyester is used as the fabric. However, the required strength such as a fabric made of synthetic fiber such as nylon or cotton or natural fiber, or a laminated material obtained by coating the fabric with a synthetic resin is required. Any flexible sheet material having flexibility can be selected.

The unfolded sheet material 1 is held by being folded (mountain fold) downward along mountain fold lines ML that are parallel to the pair of short sides 3 and have a predetermined space S1 required to form the upright portions f. Hand openings D are formed respectively.

In this embodiment, a V-shaped cut portion 4 is formed in each of the handle openings D from the short side 3 toward the inner side, and the short side 3 side of the cut portion 4 is closer than the space S1. The handle portion 5 made of a tape material having a small width is formed (sewn). However, as long as the handle opening D is formed by bending the sheet material 1 in parallel with the short side 3 at the required interval S1 to form the upright portion f, as in the present embodiment, other than the sheet material 1. It is not necessary to sew the material of the sheet material, and instead, as shown in a second embodiment described later, the handle portion is formed by performing necessary processing on the portion forming the handle opening portion D of the sheet material 1. May be formed.

Next, in order to form the storage portion B in line symmetry with the sheet material 1 being line-symmetrical with respect to the symmetry axis CL that is a vertical bisector of the long side 2, the upright portion f of the mountain-folded handle opening D is formed. So as to face each other on the symmetry axis CL, are folded back (folded) in the arrow direction (upward) along the fold line FL from the symmetry axis CL and the mountain fold line ML at equal intervals S2, as shown in FIG. Folding ends 6 parallel to the symmetry axis CL are formed on both sides of the sheet material 1. At this time, the handle openings D facing each other on the symmetry axis CL are preferably in contact with each other, but may be close to each other.

Next, the sheet material 1 on which the folding end 6 is formed is arranged such that the folding end 6 is directed from both sides toward the handle opening D as indicated by the arrow in FIG. It is sequentially wound along the winding folding line RL2.

In this embodiment, the sheet material 1 on which the folding end 6 is formed has a first winding folding line RL1 with a winding width R1 from the folding end 6 and a winding width R2 from the first winding folding line RL1. A second winding folding line RL2 having a winding width R3 from the folding line ML is formed, and each winding width is set to gradually increase so as to satisfy the relationship of R1<R2<R3.

Here, the winding process of the sheet material 1 on which the folded end 6 is formed will be described. From the state shown in FIG. 3, as shown by the arrow in FIG. When sequentially wound along the first winding fold line RL1 and the second winding fold line RL2, each winding width is R3 with the symmetry axis CL as a boundary.

Further, when the sheet material 1 rolled up in the state shown in FIG. 4A is folded upward along the mountain fold line ML from both sides, as shown in FIG. 4B, the handle opening is opened inward. A storage part B is formed which is folded with the part D sandwiched. At this time, the folded storage portion B has a bottom surface 7 formed along the axis of symmetry CL, a pair of folding upper sides 8 formed along the second winding fold line RL2, and a longitudinal direction in a state of being overlapped with each other. It has a rectangular flat shape composed of side end portions 9 formed on both side portions.

In the present embodiment, in order to form the storage portion B, the folding end 6 formed on the sheet material 1 has the first winding fold line RL1 and the first winding fold line RL1 as shown in the schematic cross-sectional view shown in FIG. Although it is wound three times along the two-fold fold line RL2 and the mountain fold line ML, the number of times of wrapping may be increased or decreased in the winding process of the sheet material 1 depending on the size of the folding bag A.

Next, as shown in FIG. 5(a), the storage part B folded in the state shown in FIG. 4(b) has seams 10 along side edges 9 formed on both sides in the longitudinal direction. One end of the ring-shaped rubber bundling portion E is formed on one side end portion 9 in order to fold and bind the storage portion B in the longitudinal direction from the vicinity of the center outward while Is sewn on.

In this embodiment, a ring-shaped rubber member is used as the binding portion E, but the binding portion E is not limited to this type, and for example, a band-shaped band extending from the side end portion 9 is used. It is also possible to attach a button to the end portion of and to attach the receiving portion that cooperates with the button to the surface of the storage portion B.

As shown in FIG. 5(b), the focusing end portion C is composed of a pair of tape-shaped materials 11 having a total length set to slightly more than twice the winding width R3 which is the width of the folded storage portion B, In order to seal the side end portions 9 formed in the storage portion B in an overlapped state, each tape-shaped material 11 is folded back from the fold line 12 and the side end portion 9 of the folded storage portion B is sandwiched. It is sutured to.

As described above, since the folding bag A is created in a folded state, the appearance of the folding bag A in use will be described with reference to FIG.

The folding bag A that has been expanded to a use state has a shape like a shoulder bag as a whole, and has a bottom surface 7 having a width of about twice the winding width R3 (between the symmetry axis CL and the folding upper side 8), A cut portion 4 is formed so as to be continuous with a body portion 13 having a front and rear folded end 6 rising from the front and rear sides of the bottom surface 7 as an intermediate line, and a handle opening D to which the handle portion 5 above the body portion 13 is connected. It is composed of a flat gusset portion 14.

Next, a use mode and an operation effect of the present embodiment will be described with reference to the drawings.
As described above, the folding bag A according to the present embodiment is formed in the folded state as shown in FIG. 1 by winding the rectangular sheet material 1 shown in FIG. A procedure for making the folding bag A in the open state ready for use will be described.

First, the binding portion E is removed from the storage portion B that is bound by the rubber binding portion E, and is expanded in the left-right direction with the bottom surface 7 facing down as shown in FIG. 1(a). As shown in the schematic cross-sectional view of FIG. 1B, in FIG. 1B, the bottom surface 7 is in the closed state, while the folding upper side 8 is in the front and rear separable state.

Then, the folding upper side 8 is opened back and forth, and the handle portion 5 sewn in the handle opening D is pulled up from the storage portion B and the bottom surface 7 is pulled down, as shown in FIG. Since the folding bag A is ready for use, after the storage item is put in through the handle opening D, the handle 5 can be held by hand or hung on the shoulder for use. At this time, in the folding bag A, the focusing end portion C is hidden by the body portion 13 such as the folding upper side 8, so that the appearance as a bag can be adjusted.

Next, with reference to FIG. 7, the procedure for folding the folding bag A after use into a small size will be described. From the state shown in FIG. 6, the handle opening D of the folding bag A is fully opened, and the stored article is taken out. , Holding the focusing ends C provided on both sides of the storage section B with both hands, and pulling with both hands in the direction (arrow method) of separating the focusing ends C on both sides, as shown in FIG. When it does not fold up cleanly at one time, the storage end B can be folded into a rectangular flat shape by pulling the focusing end C again in the direction of the arrow.

After that, as shown in FIG. 7B, the storage portion B is folded in two in the longitudinal direction at the fold line 15 and then folded so that the fold line 15 becomes smaller, and finally, is bound by the rubber binding portion E. As a result, the folding of the folding bag A is completed.

As described above, the folding bag A according to the present embodiment is prepared by preparing one rectangular sheet material 1 and sequentially winding it from the folding ends 6 formed on the left and right around the symmetry axis CL as a heat press. The storage portion B can be easily created without performing pleating using.

Next, a second embodiment in which the configuration of the handle portion 5 in the first embodiment is changed will be described.
Hereinafter, the same components as those in the first embodiment will be designated by the same reference numerals, and only different components will be designated by different reference numerals, and the description will focus on the differences.

In FIG. 8, reference numeral 21 denotes a rectangular sheet material having long sides 22 and short sides 23, and constitutes a storage portion B and a handle opening portion D of the folding bag A shown in FIG. Compared to the sheet material 1 of the first embodiment, the sheet material 21 has the same short side 23 as the sheet material 1, but the long side 22 is a sheet with an interval S3 set in the upper and lower portions, respectively. It is longer than the long side 2 of the material 1.

The unfolded sheet material 21 is formed with semi-elliptical hollowed-out openings 24 near the pair of short sides 23. The sheet material 21 is parallel-folded with the short side 23 and is valley-folded along the valley fold line VL at a predetermined interval S3, so that the short side 23 is aligned with the superimposition line OL that is in contact with the straight line portion of the cutout opening 24. The handle portion 25 is formed by stitching two pieces in a stack. In the present embodiment, the hollowed-out opening 24 is sewn with a reinforcing tape 26 around the periphery for reinforcement.

Next, a use mode and an operation effect of the present embodiment will be described with reference to the drawings.
In this embodiment, similarly to the first embodiment, the rectangular sheet material 21 shown in FIG. 8 is unfolded and rolled up to form the folding bag A shown in FIG. 1 in a folded state. The handle portion 25 formed in the opening D is different from the handle portion 5 of the first embodiment, and will be described.

In the present embodiment, as described above, the expanded sheet material 21 having a rectangular shape shown in FIG. 8 is formed by hollowing out the hollowed-out openings 24 near the pair of short sides 23 and then separating the short side 23 by the distance S3. By folding along the valley fold line VL, the short side 23 is aligned with the overlapping line OL and two sheets are sewn together to form the handle portion 25.

After the sheet material 21 is formed with the handle portion 25, the sheet material 21 is folded downward along the mountain fold lines ML parallel to the pair of short sides 23 and separated by the predetermined interval S1. Similarly to the above, the upright portions f are formed. After that, the folding bag A is produced by the same process as that of the first embodiment shown in FIGS.

As described above, in the present embodiment, by preparing one rectangular sheet material 21, it is possible to form the cutout opening 24 on each short side 23 side of the sheet material 21 and to sew two sheets in layers. Thus, the handle portion 25 can be formed in the portion that becomes the handle opening portion D.

Next, a third embodiment in which the configurations of the storage portion B and the binding portion E in the first embodiment are changed will be described.
Hereinafter, the same components as those in the first embodiment will be designated by the same reference numerals, and only different components will be designated by different reference numerals, and the description will focus on the differences.

In FIG. 10(a), A is a folding bag in a folded state, Ba is a storage unit folded in a rectangular flat shape, and C is a state in which both sides in the longitudinal direction of the storage unit Ba are overlapped and sealed. The converging end portion D is provided on the innermost side of the storage portion Ba, a handle opening portion (see FIG. 10(b)) for inserting/removing the storage article 29, and Ea is a small storage portion Ba in the longitudinal direction. It is a binding unit that binds in a folded state. In the present embodiment, the binding portion Ea is provided on the storage portion Ba side of the focusing end portion C unlike the first embodiment, but the binding portion Ea is a state in which the storage portion Ba is folded in the longitudinal direction. It can be installed anywhere as long as it can be bound with.

In FIG. 9, reference numeral 1 is a rectangular sheet material having long sides 2 and short sides 3 and constitutes the storage portion Ba and the handle opening portion D of the folding bag A shown in FIG. In this embodiment, a V-shaped cut portion 4 is formed in each of the handle opening portions D from the short side 3 toward the inner side, and on the short side 3 side of the cut portion 4 is smaller than the interval S1. A handle portion 5 made of a tape material having a width is sewn on.

An inner pocket P is formed in the unfolded sheet material 1 by stitching with the seam 28 so that the upper end of the additional sheet material 27 contacts the tip of the cut portion 4. In this embodiment, in order to form the inner pocket P, the additional sheet material 27 having the same lateral dimension as the short side 3 and a longitudinal dimension larger than the depth d of the inner pocket P by the seam allowance is used. The size of the additional sheet material 27 forming the inner pocket P can be appropriately selected according to the required width w and depth d of the inner pocket P.

Next, a use mode and an operation effect of the present embodiment will be described with reference to the drawings.
In the present embodiment, similar to the first embodiment, the folding bag A shown in FIG. 10(a) is created in a folded state by winding the rectangular expanded sheet material 1 shown in FIG. This is different from the storage portion B of the first embodiment in that the inner pocket P is formed inside the storage portion Ba, and will be described.

In the present embodiment, as shown in FIG. 9, the additional sheet material 27 is placed at a position where the upper end is in contact with the tip of the cut portion 4 formed in the rectangular expanded sheet material 1, and then the additional sheet material 27 is placed. By stitching 27 to the sheet material 1 at the seam 28, the inner pocket P is formed inside the storage portion Ba. At this time, the width w of the inner pocket P can be appropriately set by changing the position of the seam 28 to be sewn.

After forming the inner pocket P, the sheet material 1 is folded downward at mountain fold lines ML that are parallel to the pair of short sides 3 and are separated by a predetermined distance S1 to form the handle opening D shown in FIG. Similarly, the standing portions f are formed. After that, the folding bag A is produced by the same process as that of the first embodiment shown in FIGS.

Since the folding bag A is created in a folded state, the external appearance of the folding bag A in the used state will be described with reference to FIG. 10(b). A storage item 29 such as a lunch box is stored in the storage part Ba through the opening D, and an inner pocket P formed inside the storage part Ba is located at a position away from the storage item 29 such as a bottle 30 of beverage. Thus, it can be stored as if it were placed on a hammock.

As described above, in the present embodiment, the additional sheet material 27 is sewn to one rectangular sheet material 1 that constitutes the storage portion Ba of the folding bag A and the handle opening D, and is placed inside the storage portion Ba. By forming the inner pocket P, a beverage bottle 30 and the like can be stored separately from the storage article 29 such as the lunch box stored at the bottom of the storage portion Ba in the inner pocket P, which is warm. The stored article 29 and the cold bottle 30 do not come into contact with each other, and the bottle 30 does not crush the stored article 29.

As for the folding bag of the present invention, as the appearance when in use, the focusing end is hidden by the body, so the appearance as a bag can be adjusted and it can be stored by simply pulling the focusing end away from the use state. Since the part can be folded and folded into a rectangular flat shape, the folding bag of the present invention can be easily folded when carrying it, and is particularly suitable as a reusable bag for storing purchased items at the time of shopping. Is.

A Folding bag B, Ba Storage part C Converging end part D Handle opening part E, Ea Binding part CL Symmetric axis (center line)
FL folding line ML mountain folding line OL stacking line P inner pocket RL1, RL2 winding folding lines R1, R2, R3 winding width S1, S2, S3 spacing VL valley folding line d depth f standing portion w width 1, 21 sheet material 2,22 Long side 3,23 Short side 4 Cut section 5,25 Handle section 6 Folding edge 7 Bottom surface 8 Folding upper side 9 Side edge section 10, 28 Seam 11 Tape material 12, 15 Folding section 13 Body section 14 Top gusset section 24 Hollowing Opening 26 Reinforcing Tape 27 Additional Sheet Material 29 Storage Items 30 Bottle

Claims (4)

A folding bag that is rolled into a rectangular flat shape,
In parallel with a pair of short sides of the rectangular sheet material, a handle opening including a standing portion formed by bending at a predetermined interval,
With the vertical bisector of the long side of the sheet material as the axis of symmetry, the handle openings facing each other are folded back at equal intervals from the axis of symmetry so that they abut or come close to each other on the axis of symmetry. Fold edges formed on both sides,
A storage portion formed by winding the folding end from both sides toward the handle opening while forming a plurality of winding folding lines,
A converging end that is sealed in a state in which both sides in the longitudinal direction of the rolled-in storage part are overlapped,
A folding bag in which the storage portion is rolled up and folded by pulling the focusing end portion away from the use state. The folding bag according to claim 1, wherein the handle opening has a handle portion formed along the pair of short sides. The folding bag according to claim 2, wherein the handle portion has a cutout opening portion formed near the pair of short sides. The folding bag according to any one of claims 1 to 3, wherein the storage portion has an inner pocket formed in parallel with the handle opening portion.

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