JP6587726B1 - Folding vertical bag - Google Patents

Abstract

A folding vertical bag that can be easily folded is provided. The sheet material is folded along a fold line parallel to the vertical bisector so that the second sides facing each other about the vertical bisector of the first side are close to each other. A bag body B having a folding surface 5 formed on the folding surface and a plurality of pleats 4 formed on both sides of the folding surface, and an incision along the vertical bisector formed at the center of the bag body A handle opening 6 to be formed, and a handle portion B1 formed on the folded portion side of the bag body folded back so that the folding surface faces outward along a folding line that bisects the bag body in the longitudinal direction; In a state in which the storage portion B2 formed by joining the second sides of the folded pleats overlapping the bag body only on the side end side and the side ends of the overlapping pleats of the folded bag body are overlapped. Sealing Characterized in that it comprises a focusing bottom C formed Te. [Selection] Figure 1

Description

  The present invention relates to a folding vertical bag, and more particularly to a folding vertical bag that is convenient to carry by being folded small when not in use.

There have been various proposals for a vertical bag that is made of a sheet material and can be folded in consideration of carrying when not in use.
As an example of such a vertical bag, a sheet having flexibility such as a cloth is provided with an accordion fold in at least one mountain fold portion and a valley fold portion in the vertical direction, such as cloth, paper, vinyl, etc. Both ends of the flexible sheet are stitched into a cylindrical shape, the mountain fold and valley folds are sorted and folded, the upper part is an opening, and the lower part is stitched with the mountain fold and valley folds overlapped and folded. Construct the bottom, provide a string through hole in the middle of each mountain fold part and each valley fold part of the opening, pass the string, pull the string and the bottom part, so that it does not wrinkle easily and compactly 2. Description of the Related Art A shopping bag that can be folded in a conventional manner is known (for example, see Patent Document 1).

  Further, as a foldable bag that is made of a sheet material and can be formed into a predetermined rectangular flat band shape in which both ends in the longitudinal direction are closed by simply pulling both ends in a direction after use, the bag is A central portion in the width direction or one side edge in a belt-like form extends linearly from one end portion to the other end portion, and an opening portion 100a for taking in and out an object, and sandwiching the opening portion 100a A bag body having a bellows structure, which is formed of a plurality of pleats 12 formed by repeating a mountain fold and a valley fold at a predetermined width, located on one half 10a and the other half 10b, A bag body that is closed in a state where the ends of the plurality of pleats 12 are overlapped, and the first and second halves 10a and 10b that extend along the opening 100a. Tunnel Flat first strap ST1 having a width and passing through the first tunnel portion 18a, and a flat second strap ST2 having a width and passing through the second tunnel portion 18b. And pulling out part of the first and second straps ST1 and ST2 from both ends of the first and second tunnel portions to make the opening 100a small, and the first and second straps ST1. , ST2 is also known in the past (see, for example, Patent Document 2).

JP-A-2015-58343 International Publication No. 2017/033902

In the shopping bag described in Patent Document 1, the string and the bottom part can be easily folded compactly, but it is necessary to prepare the string separately as a handle and attach it to the opening. There was a problem that it took time to produce.
Further, in the foldable bag described in Patent Document 2, it is possible to make the both ends in the longitudinal direction closed by pulling in the direction in which both ends are separated after use, but as a handle, the strap is separated from the sheet material. There is a problem that it takes time to produce a foldable bag, as in the above-mentioned Patent Document 1.

  An object of the present invention is to solve the above-mentioned problem, and it is manufactured integrally with a handle portion by folding a single sheet material, and after use, it is merely tensioned in the direction of separating both ends in the longitudinal direction. The purpose is to provide a folding vertical bag that can be folded easily.

In order to solve the above-described problem, the present invention provides a folding vertical bag that is folded by being tensioned in the longitudinal direction from the use state as a folding vertical bag, and includes a first side and a second side adjacent to each other. The rectangular sheet material is folded along a fold line parallel to the vertical bisector so that the second sides facing each other about the vertical bisector of the first side are close to each other. a folding surface formed on, the folding and bag body having a pair of bellows-like pleats are formed on both sides of the surface, the vertical bisector predetermined opening the central portion along the folding surface a handle opening formed by incision in size, by folding surface is folded so as to face outward along the folding line which bisects the bag body in the longitudinal direction, bag body A handle portion formed on the pair of folded-back portion separated by the handle opening, the second side between the bellows-like pleats overlapping the folded bag body formed by joining only the side end portion side And a converging bottom formed by sealing in a state where the side end portions of the folded bellows-like pleats overlapped with each other.

As a specific embodiment of the sheet material constituting the bag body, the sheet material has a handle opening line formed in a central portion on the vertical bisector of the first side, and the opposite from the vertical bisector A pair of first mountain fold lines formed with the width S1 of the folding surface toward the second side, and a distance less than ½ of the width S1 from the first mountain fold line toward the second side A plurality of sets of valley fold lines and mountain fold lines formed at S2, a pair of fold lines formed at an interval S2 from a pair of mountain fold lines closer to the second side, and a perpendicular bisector of the second side The structure characterized by providing the folding line | wire formed in this.
As a specific embodiment of the handle portion, the handle portion includes a narrow width portion formed by folding both sides of the pair of folded portions on the back side.

The folding vertical bag according to the present invention adopts the above-described configuration, so that a folding vertical bag integrated with the handle portion can be produced by folding one sheet material, and after use, It is possible to easily fold it by simply tensioning both ends of the direction.
In addition, the folding vertical bag of the present invention can be simplified in the manufacturing process because the handle portion and the storage portion of the bag body are made of one rectangular sheet material.
Furthermore, since the folding vertical bag of the present invention has a narrow portion in the handle portion, the folding vertical bag can be easily held by hand and can be easily hung on the shoulder.

It is a perspective view which shows the folded state of the folding vertical bag which is an Example of this invention. It is a figure which shows the state which expand | deployed the sheet material which manufactures the folding vertical bag of an Example. It is a schematic diagram which shows the folding state of the sheet material of FIG. It is a schematic diagram which shows the state which turned up the folded sheet | seat material of FIG. It is a schematic diagram which shows the cross section of FIG. 1, (a) is a X1-X1 direction arrow cross-sectional schematic diagram, (b) is a X2-X2 direction arrow cross-sectional schematic diagram. It is a perspective view which shows the use condition of the folding vertical bag of an Example. It is a figure which shows the use condition of the folding vertical bag of an Example, (a) is a top view, (b) is a front view, (c) is a side view.

Next, the folding vertical bag of the present invention will be described with reference to the drawings showing examples.
In the following description, referring to the perspective view of FIG. 1, the vertical direction is “up and down”, the upper left to the lower right direction is “left and right”, and the lower left to upper right direction is “front and rear”.

  In FIG. 1, A is a folding vertical bag and shows a folded state, B is a bag body folded into a flat shape by forming pleats 4 on both sides, and B1 is formed on the upper part of the bag body B. The handle portion, B2 is a storage portion formed continuously from the lower end portion of the handle portion B1, and C is formed by sealing the side end portions 7 of the pleats 4 formed on the bag body B in an overlapped state. The converging bottom portion D, which is provided near the converging bottom portion C of the bag body B, is a fastening band that binds the folding vertical bag A in a folded state in the longitudinal direction.

As shown in FIG. 2, the bag body B is composed of a rectangular sheet material 3. In this embodiment, for convenience of explanation, the sheet material 3 has a short side 2 on the first side and a long side on the second side. Although the rectangle is 1, the first side may be the long side 1 and the second side may be the short side 2. Further, the sheet material 3 may be a square in which the first side and the second side are equilateral.
In the present embodiment, a polyester fabric is used as the material of the sheet material 3, but a fabric made of synthetic fibers such as nylon or natural fibers such as cotton, a laminated material obtained by coating the fabric with a synthetic resin, and the like, Any flexible sheet material having the required strength and flexibility can be selected.

In order to form a plurality of pleats 4 shown in FIG. 3, the sheet material 3 is symmetrical with respect to the long side 1 (center line CL) with respect to the center line CL that is a perpendicular bisector of the short side 2. A pair of first mountain fold lines M1 formed at a distance S1 and a pair of first mountain fold lines formed at a distance S2 less than ½ of the distance S1 from the first mountain fold line M1 toward the long side 1 side. A valley fold line V1, a pair of second mountain fold lines M2 formed at an interval S2 from the first valley fold line V1 toward the long side 1 side, and from the second mountain fold line M2 to the long side 1 side A pair of second valley fold lines V2 formed at an interval S2 and a pair of third mountain fold lines M3 formed at an interval S2 from the second valley fold line V2 toward the long side 1; A pair of folding lines T formed at an interval S2 from the third mountain fold line M3 toward the long side 1, and the width from the folding line T to the long side 1 is an interval S. It is set to be narrower intervals S3 than.
In the present embodiment, the sheet material 3 is formed up to the third fold line M3 and the fold line T (corresponding to the third valley fold line), but the mountain fold line and the valley fold line corresponding to the number of pleats 4 are formed. The interval S2 corresponding to the number and the pleat width can be arbitrarily set according to the shape of the folding vertical bag.

As shown in FIG. 3, the bag body B folds the sheet material 3 along the mountain fold lines M1 to 3, the valley fold lines V1 and 2 and the fold line T, respectively, so that the folding surface sandwiches the center line CL. A pair of bellows-like pleats 4 are formed on both sides of 5.
Further, the bag body B is formed with a handle opening 6 by cutting the opening line OL (see FIG. 2) having an opening dimension L1 at the center along the center line CL of the folding surface 5 with a cutter or the like. .

Next, the bag body B in which the pleats 4 are formed is along the folding line FL that is a perpendicular bisector of the long side 1 in the sheet material 3 so that the third fold lines M3 of the pleats 4 face each other. As shown in FIG. 4, the side end portions 7 on the short side 2 side of the folding surface 5 face each other.
As described above, the bag body B is folded along the folding line FL so that the folding surface 5 faces outward, whereby the bag body B is separated by the handle opening 6 on the side of the pair of folded parts 8 ( A handle B1 is formed on the side opposite to the side end 7.

As shown in FIG. 5, the handle B <b> 1 is formed on the front and back sides of the opening edge 11 as shown in FIG. 5A in order to reinforce the entire handle opening 6 formed on the folding surface 5. A reinforcing tape 12 such as a grosgrain tape is sewed over, and a reinforcing tape 13 is sewed to reinforce the opening end 6a of the handle opening 6.
Furthermore, since the handle portion B1 is difficult to hold by hand or difficult to hang on the shoulder when the folded portion 8 is wide, the handle portion B1 folds both sides of the folded portion 8 to the back side and sews it. Thus, the narrow width portion 14 is formed.
Further, as shown in FIG. 6, each handle B1 is folded on the back side as shown in FIG. 5 (a) in order to separate the folds T of the pleats 4, as shown in FIG. The pleated opening 15 is formed by sewing in the state.

  Next, as shown in FIG. 1, the folded bag main body B has a storage portion B2 formed continuously from the lower end portion of the handle portion B1. As shown in FIG. 5 (b), the storage portion B <b> 2 is formed by sewing the sides that overlap adjacent to the folding line T of the pleat 4 in a state where the sides are folded back.

  As shown in FIG. 1, the converging bottom portion C is composed of a reinforcing tape 17 having a total length corresponding to slightly more than twice the interval S1 which is the width of the folding surface 5 of the bag body B, and is formed on the bag body B. In order to seal the four side end portions 7 in an overlapped state, the reinforcing tape 17 is folded back on both sides of the folding surface 5 and is sewn so as to sandwich the side end portion 7 of the bag body B.

Further, as shown in FIG. 1, in order to fold and bind the bag body B in the longitudinal direction from the both sides of the folding surface 5 toward the front, near the converging bottom C of the bag body B, FIG. ), A tape-like rubber retaining band D is sewn.
In the present embodiment, the fastening band D is made of a tape-shaped rubber, but is not limited to this type, and any band can be used as long as the bag body B can be folded in the longitudinal direction.

As described above, the folding vertical bag A is manufactured in a folded state. Next, the appearance of the folding vertical bag A in use will be described with reference to FIG.
As shown in the top view of FIG. 7 (a), the folding vertical bag A expanded in use is a pleat formed on both sides of the front folding surface 5 and the front folding surface 5 of the bag body B. 4 and a pair of lateral gussets 19 (side surfaces) having a curved surface, a rear folding surface 5 continuing rearward from the pair of lateral gussets 19, and a bottom gusset 20 (bottom surface) composed of pleats 4 extended from the focusing bottom C ).

Next, usage modes and operational effects of the present embodiment will be described with reference to the drawings.
As shown in FIG. 3, the folding vertical bag A according to the present embodiment is configured such that the sheet material 3 constituting the bag body B is along the mountain fold lines M <b> 1 to 3, the valley fold lines V <b> 1 to 2, and the folding line T After folding, the handle opening 6 is incised in the center of the folding surface 5, and as shown in FIG. 4, the bag body B is folded along the folding line FL so that the folding surface 5 faces outward. .
Reinforcement tapes 12 and 13 are sewn to the handle opening 6 formed in the handle portion B1 of the folded bag body B, and the handle portion B1 is folded on both sides of the folded portion 8 on the back side. The narrow portion 14 is formed by sewing.

  Thereafter, the storage portion B2 of the bag main body B is sewn in a state where the overlapping sides adjacent to the folding line T of the pleat 4 are folded back to each other as shown in FIG. As shown in FIG. 1, a folding vertical bag is sewed by sewing a reinforcing tape 17 forming a converging bottom C on the side end 7 and sewing a fastening band D near the converging bottom C of the folding surface 5. A is manufactured in a folded state.

Next, a procedure for making the folded folded bag A in a usable state will be described with reference to FIG.
First, the fastening band D is removed from the bundled folding vertical bag A, and as shown in FIG. 1, it is expanded in the longitudinal direction with the converging bottom C facing down.
Thereafter, when the handle opening 6 of the handle B1 is opened, the folding vertical bag A can be used as shown in FIG. The hand opening 6 can be closed and the handle portion B1 can be used with a hand.

  As described above, the folding vertical bag A expanded in use is formed between the front folding surface 5 and the rear folding surface 5 of the bag body B as shown in FIG. The pleat 4 is expanded to increase the volume of the storage portion B2 as the horizontal gusset 19, and the handle opening portion 6 and the pleat opening portion 15 of the handle portion B1 are opened to facilitate access to the storage portion B2. be able to.

Next, a procedure for folding the folded vertical bag A after use in small size will be described with reference to FIG.
First, after opening the handle opening 6 of the bag main body B, taking out the stored article, pulling the folded portion 8 and the focusing bottom C of the handle B1 with both hands, as shown in FIG. The folding bag A can be formed into a flat shape with the folding surface 5 on the front and back.
Thereafter, the bag main body B is folded in the longitudinal direction, and finally, the bag is bound by a rubber fastening band D to complete the folding.

  The folding vertical bag of the present invention can produce a folding vertical bag integrated with the handle by folding one sheet of material, and after use, it is tensioned in the direction of separating both ends in the longitudinal direction. Since it can be easily folded, it can be easily folded when carrying, and is particularly suitable as a shoulder bag to be carried when going out.

A Folding vertical bag B Bag body B1 Handle part B2 Storage part C Focusing bottom part D Fastening band CL Center line FL Folding line OL Opening line L1 Opening dimensions M1, M2, M3 Mountain folding line V1, V2 Valley folding line T Folding curve S1, S2, S3 Interval 1 Long side 2 Short side 3 Sheet material 4 Pleated 5 Folding surface 6 Handle opening 6a Open end 7 Side end 8 Folded portion 11 Open edge 12, 13, 17 Reinforcement tape 14 Narrow width Part 15 Pleated opening 19 Horizontal gusset 20 Bottom gusset

Claims (3)

A folding vertical bag that becomes a folded state by being tensioned in the longitudinal direction from the use state,
A rectangular sheet material composed of adjacent first and second sides is parallel to the perpendicular bisector so that the second sides facing each other centering on the perpendicular bisector of the first side are close to each other. folded along a fold line, the folding surface to be formed in the center, the bag body having a pair of bellows-like pleats are formed on both sides of the folding surfaces,
A handle opening formed by incising a central portion with a predetermined opening dimension along the vertical bisector of the folding surface;
A handle part formed on the side of the pair of folded parts separated by the handle opening of the bag body by folding back so that the folding surface faces outward along a folding line that bisects the bag body in the longitudinal direction. When,
A storage part formed by joining the second sides of the accordion-shaped pleats of the folded bag main body only on the side end part side;
A folding vertical bag comprising a converging bottom formed by sealing the folded bag main body with side ends of overlapping bellows-like pleats being overlapped.   The sheet material has a handle opening line formed at a central portion on a vertical bisector of a first side and a width S1 of a folding surface toward a second side opposite to the vertical bisector. And a plurality of sets of valley fold lines and mountain folds formed at an interval S2 less than ½ of the width S1 from the first mountain fold line toward the second side. A pair of folding lines formed at a distance S2 from a pair of mountain fold lines closer to the second side, and a folding line formed on a perpendicular bisector of the second side. The folding vertical bag according to claim 1.   3. The folding vertical bag according to claim 1, wherein the handle portion includes a narrow width portion formed by folding both sides of the pair of folded portions on the back side. 4.

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