JP3801244B2 - Hand bag for vertically long article and method for producing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plastic handbag suitable for storing vertically long items.
[0002]
[Prior art]
Traditionally, plastic film handbags have been used in large quantities because they are cheap, lightweight, and simple. For example, potted plants, artificial flowers, vertically long figurines, ornaments, bottles, etc. There is no handbag to use. Conventionally, furoshiki is used exclusively to carry such items, but it is difficult to fix and has the inconvenience of unwinding during carrying. In addition, when a long cylindrical bag is used, it is inconvenient because it is caught on the side film of the bag when a vertically long article is stored.
[0003]
[Problems to be solved by the invention]
The present invention has been made for the purpose of providing a durable bag for vertically long articles suitable for continuous production, which is a bag for vertically long articles made of plastic film.
[0004]
[Means for Solving the Problems]
The present invention provides a hand bag for a vertically long article comprising the following items and a method for producing the bag.
(1) A long strip-shaped thermoplastic film is sent out to the gusset process, folded on both sides parallel lines corresponding to the width of the bottom film 1 of the bag in the direction of the center of the strip at the first folds A and A ′, The first folded films 2 and 2 'folded at A and A' are folded back at the second folds B and B 'near the center, and the second folded films are folded at the second folds B and B'. 3. Fold both sides of 3 and 3 'again with hand-folded folds T and T' to form folding belt-like films as hand-held double film portions D and D 'at positions beyond the first folds A and A', Next, a belt-like film folded by one-pitch movement is sent out with the bottom film 1 facing up in the double edge side punching process for the handbag, and the side edges of the handfold folds T and T ′ of the double film for the handsheet are U-shaped. To the fusing process Similarly, it is sent out by one pitch movement, and the fusing process comprises a first fusing part and a second fusing part, both fusing parts are constituted by a receiving plate and an L-shaped hot blade, and the first fusing part has a first folded film 2, In the central portion of the side edge punched portion which is transferred by one-pitch movement to a state where the receiving plate base is inserted between 2 'and the second folded film 3, 3' to the second fold B, B 'and is stationary. Both hot blades are approximately 45 degrees with respect to the fold line so that the apex angle of the L-shaped fusing blade bent substantially perpendicularly from the top of the bag bottom film surface is in contact with the second fold lines B and B ′. By pressing at an angle, the double part of the bottom film and the first folded film 2, 2 ′ is cut into a substantially right triangle shape and welded, and the cut part is folded at a predetermined interval by one-pitch movement, and the first part of the folded strip film Both sides of the crease Bottom weld line H, to form H 'respectively, while the second fused portion handbag of the double film on a plate table receiving tote a tote for double film in the same position as the fusion portion of the first blowing step From the side edges of the folds T and T ' to the vertical edges 7 and 7' of the second folded film, the L-shaped hot blade is pressed at an angle of 45 degrees, and the welding line is handed to the outside of the bottom welding lines H and H '. Forming E to form a cut-off handle part in a right triangle while welding the double film part, transferring it by a one-pitch movement to the cutting process, and cutting the folded belt-like film at the apex position of the cut-out part A method for manufacturing a handbag for a vertically long article.
(2) At least one of the first fusing part and the second fusing part is formed by L-shaped welding with an L-shaped heat-sealing hot blade having the same shape and mechanical punching and cutting along the vicinity of the L-shaped welding part. Item 2. A method for producing a handbag for a vertically long article according to Item 1, wherein the bag is replaced by a welding cut-off step.
(3) Between the folding process of the second folds B and B ′ and the folding process of the hand folds T and T ′, again on the positions of the first folds A and A ′ and the positions of the second folds B and B ′. 3. A method for producing a hand bag for a vertically long article according to claim 1 or 2, wherein the folding step is repeated 1 to 3 times to form a folded strip film.
(4) In the folded state, the first folded films 2 and 2 ′ folded at the first folds A and A ′ from both sides of the bottom film 1 are the second folds B and B ′ near the center of the bottom film 1. Both sides of the second folded film folded back and folded at the second fold are folded again by hand-folded folds T and T ′ to form hand-held double film portions D and D ′ outside the positions of the first folds A and A ′. From the side edges of the double film hand-fold folds T, T ′ to the vertical edge 7 of the second folded film , welding is performed with two pairs of hand-welding lines E of approximately 45 degrees extending toward the center, The hand folds T and T 'have side edges formed by cutting off the side edges of the hand tapes 5 and 5', and the first fold lines A and A 'to the second fold lines B and B'. At an angle of about 45 degrees to the intersections F, F ′, G, G ′ of the bottom film 1 It has the bag part which consists of the bottom part formed by welding with the four bottom part welding lines H, H ', J, and J' which spread in the center, and the side surface formed with a 2nd folding | turning film. A handbag for vertically long articles.
(5) The handbag for a vertically long article according to item 4, wherein the four bottom welding wires are formed by fusing.
(6) A double film residue R in which at least one of the four bottom weld lines or the two pairs of hand weld lines is welded by heat sealing, and is mechanically cut along the outside of the heat seal welding lines Item 5. The handbag for a vertically long article according to item 4, wherein
(7) The end of at least one of the four bottom weld lines or the two pairs of hand-welded weld lines is curved in the direction of spreading toward the center to increase the strength of the end of the weld. Item 4. A handbag for a vertically long article according to Item 5, Item 5 or Item 6.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The hand bag for vertically long articles of the present invention has the structure shown in FIGS.
FIG. 1 is a plan view of a hand bag for a vertically long article made of plastic film according to the present invention as viewed from the front side, and a portion that cannot be directly seen from above is indicated by a dotted line. The cross-sectional structure when cut along the horizontal cross section X in FIG. 1 is shown by the lines in FIG.
FIG. 3 shows a back view of the same bag. From the back, the octagon of the bottom film 1 is shown, but the first folds A and A ′ are on the back side of the bottom film 1, It is shown in FIG. 4 is a cross-sectional view at the position Y, and the hand-held double film portions D and D ′ are continuous. FIG. 4 also coincides with the cross-sectional structure of the folded strip film formed in the gusset process in the method for manufacturing a hand bag for a vertically long article of the present invention.
Since the plastic film used in the present invention is thin, FIGS. 2 and 3 show the sectional structure of the film as a simple line for the sake of simplicity. As the plastic film used in the present invention, a thermoplastic resin such as polypropylene, polyethylene, nylon, polyester or the like can be used. In particular, a polyolefin resin film is desirable from the viewpoint of heat processability.
By the first folded films 2, 2 'and the bottom film 1 between the first folds A, A' and the second folds B, B 'folded at the first folds A, A' on both sides of the bottom film 1, The bottom of the handbag of the present invention is constructed. 1 coincides with the position of the width of the bottom portion of the bag body of the bottom film 1, and the second folds B and B ′ and the bottom film 1 from the side edges of the first fold A and A ′. The first folded film 2, 2 ′ and the bottom film 1 at four bottom weld lines H, H ′, J, J ′ inclined at about 45 degrees toward the intersections F, F ′, G, G ′ with the edges of To form a square bottom structure. The first folded film 2, 2 ′, the bottom film 1, and the four bottom welding lines form the square bottom portion of the handbag of the present invention. This is apparent when the reference numerals of the respective parts of the perspective view of only the bottom portion of the present invention in FIG.
The shape and depth of the bottom surface of the square bottom structure shown in FIG. 5 are set to the position of the first fold and the vertical length of the bottom film 1 so as to be square or rectangular in accordance with the shape of the bottom of the vertically long article to be stored It can change suitably by selecting.
In the handbag of the present invention, the second folded films 3, 3 'are integrally continuous with the second folds B, B'. The lengths of the second folded films 3, 3 ′ can be made longer corresponding to the height of the article to be stored.
The second folded films 3 and 3 'have a structure that is continuous with the second folds B and B' in FIG. 5, and as shown in FIG. 6, the upper portion of the bottom film 1 lacks a rectangular shape to form a bag. It becomes a structure which formed the slit in the side of a body article. The width of the slit becomes narrower when the second folds B and B ′ are close to the center of the bottom film 1, and when both the second folds B and B ′ are in contact with each other at the center, the width of the slit is eliminated. Depending on the shape of the vertically long article, the position of the second folds B and B ′ can be selected to adjust the width of the slit.
[0006]
The bag portion of the handbag of the present invention has a structure in which the second folded films 3 and 3 ′ of FIG. 6 are connected to the square bottom structure of FIG. The bottom of the vertically long article is stably fixed by the square bottom, and the periphery of the vertically long article except for the slit portion on the bottom film 1 is encased in the second folded film 3, 3 '. The entire vertically long article can be stably packaged and held.
The hand-wrapped double film portions D and D 'provided at the ends of the second folded films 3 and 3' are welded to the four hand-welded welding lines E shown in FIGS. 1 and 3, and further hand-held between the welding lines. The folds T and T ′ are not formed, and the hand tape 5 is formed separately.
These hand-held double film portions D and D ′ can be hung by hand as shown in the perspective view of the entire hand bag shown in FIG. 6 continuously from the ends of the second folded films 3 and 3 ′ in FIG.
At this time, the hand-taped tapes 5 and 5 'can be hung with a finger collectively just above the vertically long article stored therein.
In addition, when the vertically long article is particularly long, any long article can be stored by increasing the length of the second folded film 3, 3 ′. In the case of such a long length, it is convenient for preservation if the second folded film 3, 3 ′ is folded 1-3 times as shown in the sectional view of FIG. Moreover, the cross-sectional structure of FIG. 7 corresponds to the cross section of the folded band film when manufacturing such a long handbag of the second folded film.
The ends of the second folded films 3 and 3 ′ are folded at hand-folded folds T and T ′ to form hand-held double film portions D and D ′. The hand-held double film portions D and D ′ are formed at positions away from the first folds A and A ′. By being outside of the first folds A and A ′, the side portion when the vertically long article is stored is lengthened, and in the manufacturing process, without being disturbed by the first fold portion, This is convenient because the welding process and the punching process of the hand folds T and T ′ can be performed.
The bottom welding wire and the hand-welding wire of the present invention can be a welding wire formed by welding and cutting performed at the same time, but especially when a vertically long article to be stored is heavy, the welding wire does not break by weight. First, after forming a heat seal weld line by pressing a hot blade, the outside is mechanically cut, and a double film residue R is placed outside the heat seal weld line as shown in FIG. It is better to leave. In this case, either or both of the four welded weld lines E of the bottom welded line H, H ′, J, J ′ or the handheld partial welded line can be heat-sealed and mechanically cut outside thereof. . In this case, it is desirable from the viewpoint of strength that heat sealing is performed with a heat sealing width of 1 mm or more, preferably 2 mm or more.
For ease of processing, it is desirable to perform welding and cutting at the same time in the fusing process, but in the present invention, since the stored article is vertically long and the load applied to the bottom or hand tape increases, from the position of the fusing line There is a risk of breaking. In such a case, once heat-sealing and then mechanically cutting the outside, the processing time is doubled, but the strength of the weld line increases dramatically.
Further, the welding line curved end portion P from the central part of the four bottom welding lines H, H ′, J, J ′ or the two pairs of the hand-welded welding lines E has a curved shape that spreads toward the center as shown in FIG. It is desirable to do. By adopting this curved shape, as shown in FIG. 10, it is possible to avoid the force applied to the end portion of the bottom welding wire from being concentrated on the end portion, and the strength of the bag is increased. In addition, the same effect is also present in the hand-welded wire. In addition, due to the curved shape of the end portion, an error of about 2 mm is generated in the cutting process of the manufacture of the hand bag for the vertical product of the present invention, and the shape of the hand bag for the product of the vertical product is not disturbed. Is also effective.
[0007]
The hand bag for vertically long articles of the present invention is a very heavy vertically long article, for example, a heavy one such as a potted earthen plant, due to the double film residue R on the outside of the weld line and the curved structure of the end of the weld line. In addition, it is possible to prevent the risk of breakage from the weld line of the hand bag for vertically long articles of the present invention.
The manufacturing method of the present invention can be performed by, for example, the process diagram of FIG. First, a long belt-like film is fed into a gusset folding process, and a gusset fold having the cross-sectional structure of FIG. 4 (or FIG. 7) is formed by a conventional method.
Next, it is sent out by a one-pitch movement to the notch on the crease side edge of the handbag, and the handfold folds T, T ′ are formed into a U-shape at regular intervals corresponding to the positions of the handbag double film portions D, D ′ in FIG. The hand-taped tape 5, 5 'of FIGS. 1 and 2 is separated from the side edges of the second folded film 3, 3' by punching. Two welding steps are performed simultaneously or sequentially before, after or simultaneously with the notching step.
In the manufacturing method of the present invention, the welding step includes a mode in which welding and cutting are performed simultaneously by the fusing step, and a method of mechanically cutting along the outside of the welding line after simply heat-pressing the heating body. There are two aspects. As the process, the fusing process is simpler. However, when a heavy article is stored and handed, it is desirable to mechanically cut the outside of the welding wire by the latter heat seal.
The manufacturing method of the present invention will be described with respect to the mode of fusing and welding. The first fusing constituted by bottom receiving plate bases M and M ′ and hot blades (not shown) perpendicularly intersecting two upper and lower L shapes. In the section, the bottom receiving plate base M, M ′ is inserted to the second fold B between the first folded film 2, 2 ′ and the second folded film 3, 3 ′ and is moved by one pitch movement and is stationary. The folding belt-like film is placed on both sides of the fold line so that the apex angle of the L-shaped fusing blade bent substantially perpendicularly descending from the upper surface of the bag bottom film is substantially in contact with the second fold lines B and B ′. The hot blade is pressed at an angle of approximately 45 degrees, and the double part of the bottom film and the first folded film 2, 2 'is cut into a substantially right triangle shape and welded to the bottom side at regular intervals by one-pitch movement. Edge cutting parts S, S ' It forms on both sides of the 1st fold of a folding strip | belt-shaped film. In this case, it is desirable that the right-angled apex of the L-shaped fusing blade is curved since the end of the bottom welding line is curved as described above to increase the strength of the bag.
On the other hand, the second fusing part is hand-carrying a double film for hand-carrying at the same position as the fusing part of the first fusing process, and applying a hot blade on the receiving plate bases N and N ′ to weld the double-foil part as well. Cut the double film part to form the hand-carrying part. It is very desirable that the thermal blade of the hand-held portion has a shape in which the weld near the center of the hand-held double film spreads toward the center, since the strength of the hand-welded weld line E increases.
Subsequently, the folded band-like film can be mechanically cut at the position of the apex of the bottom side edge cut-out portion by transferring by one-pitch movement to the cutting step. By this cutting, the vertical edges 6, 6 'of the bottom film and the vertical edges 7, 7' of the second folded film 3, 3 'of the second folded film are mechanically cut.
At least one of the first fusing part and the second fusing part of the two fusing steps of this aspect of the manufacturing method of the present invention is welded by a heat-sealing heat blade having the same shape and mechanically cut along the vicinity of the welding line. It is possible to appropriately adopt a mode in which the process is changed to the step of performing the cutting by the above.
Between the folding process of the second folds B and B ′ and the folding process of the hand folds T and T ′, a process of folding again on the positions of the first folds A and A ′ and the positions of the second folds B and B ′. By repeating the above steps 1 to 3 to form a folded strip film having the cross-sectional structure shown in FIG. 7 and carrying out the same production, a hand bag for a vertically long article having a long second folded film can be produced.
The handbag of the present invention is lifted so that, for example, when the vertically long article is placed upright in the middle of FIG. 1 and the hand tapes 5 and 5 'are pulled up, the second folded films 3 and 3' wrap around both sides of the vertically long article. And can be suspended in the form of FIG. Since the bag body has a slit, it can be smoothly wrapped with the vertically long article.
[0008]
【The invention's effect】
The hand bag for vertically long articles according to the present invention can provide a hand bag that is convenient for storing and carrying vertically long articles such as potted plants and flowers.
In addition, according to the method for manufacturing a hand bag for vertically long articles of the present invention, a hand bag for vertically long articles can be manufactured continuously and efficiently. Furthermore, the strength of the weld line of the corner bottom part and the welded part of the hand tape can be increased by making the weld line a heat seal and mechanical cutting along the outside thereof.
[Brief description of the drawings]
FIG. 1 is a plan view of an embodiment of a hand bag for a vertically long article according to the present invention.
FIG. 2 is a view showing a cross-sectional structure taken along the line XX of an embodiment of a hand bag for a vertically long article according to the present invention.
FIG. 3 is a back view of an embodiment of the hand bag for a vertically long article of the present invention.
FIG. 4 is a cross-sectional view taken along line YY of the rear view of the embodiment of the hand bag for vertically long articles of the present invention.
FIG. 5 is an explanatory perspective view in which only the bottom portion of the embodiment of the hand bag for vertically long articles of the present invention is cut.
FIG. 6 is a perspective view of the shape of the embodiment of the hand bag for vertically long articles of the present invention in use.
[Fig. 7] Fig. 7 is a view showing a cross-sectional structure when the second folded film of the handbag for vertically long articles according to the present invention is lengthened.
FIG. 8 is a back view of an embodiment in which a remaining piece is provided on the outer side of the welded portion of the hand bag for vertically long articles of the present invention.
FIG. 9 is a rear view of an embodiment of an embodiment in which the end portion near the center of the welded portion of the hand bag for vertically long articles according to the present invention has a curved shape.
FIG. 10 is a perspective view of the usage state of the embodiment in which the end portion near the center of the welded portion of the hand bag for vertically long articles of the present invention is curved.
FIG. 11 is an explanatory view showing the steps of the production method of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bottom film 2, 2 '1st folding film 3, 3' 2nd folding film 5, 5 'handbag tape 6, 6' Vertical edge 7 of bottom film, 7 'Vertical edge A, A' 2nd folding film 1 fold B, B '2nd fold D, D' hand carrying double film part E hand welding line H, H 'bottom welding line J, J' bottom welding line M, M 'bottom receiving plate base N, N' hand holding Plate base P Welding wire curved end R Double film residue S, S 'Bottom edge cutout T, T' Hand fold

Claims (7)

A long belt-like thermoplastic film is fed to the gusset process, folded on both parallel lines corresponding to the width of the bottom film 1 of the bag in the direction of the center of the belt at the first folds A and A ′, and the first folds A and A The first folded film 2, 2 ′ folded back at ′ is folded outward at the second fold B, B ′ near the center, and the second folded film 3, 3 folded at the second fold B, B ′. Fold both sides of the fold again at the folds T and T 'to form a folded belt-like film with double folds D and D' at the position beyond the first folds A and A '. For the double film side edge punching process, the belt-like film folded by one-pitch movement is sent out with the bottom film 1 facing up, and the side edges of the handfold folds T, T 'of the double film for handbags are punched into a U-shape. Next, in the fusing process Sending out by one-pitch movement, the fusing process consists of a first fusing part and a second fusing part, both fusing parts are constituted by a receiving plate and an L-shaped hot blade, and the first fusing film 2, 2 in the first fusing part In the central portion of the side edge punched portion which is transferred by one-pitch movement to a state where the receiving plate base is inserted to the second folds B and B 'between' and the second folded films 3 and 3 ' Both hot blades are at an angle of about 45 degrees with respect to the crease line so that the apex angle of the L-shaped fusing blade bent substantially perpendicularly from the surface of the body bottom film is substantially in contact with the second fold lines B and B ′. The two parts of the bottom film and the first folded film 2, 2 'are cut into a substantially right triangle shape and welded, and the cut portion is folded at regular intervals by one-pitch movement to fold the first fold of the belt-like film both sides in the bottom of the Chakusen H, to form H 'respectively, while the second fused portion handbag folds of the double film on a plate table receiving tote a tote for double film in the same position as the fusion portion of the first blowing step From the side edges of T and T ′ to the vertical edges 7 and 7 ′ of the second folded film, the L-shaped hot blade is pressed at an angle of 45 degrees, and the weld line E is handed to the outside of the bottom weld lines H and H ′. Forming a cut-out hand portion in the shape of a right triangle while welding the double film portion, and transferring it by a one-pitch movement to the cutting process to cut the folded strip film at the position of the apex of the cut-out portion A method for manufacturing a handbag for a vertically long article.   At least one of the first fusing part and the second fusing part is welded and cut out by mechanical punching and cutting along an L-shaped weld with an L-shaped heat sealing hot blade having the same shape and the vicinity of the L-shaped welded part. The method for producing a handbag for a vertically long article according to claim 1, wherein   Between the folding process of the second folds B and B ′ and the folding process of the hand folds T and T ′, a process of folding again on the positions of the first folds A and A ′ and the positions of the second folds B and B ′. The method for producing a hand bag for a vertically long article according to claim 1 or 2, wherein the folded belt-like film is formed 1 to 3 times. In the folded state, the first folded film 2, 2 ′ folded at the first fold A, A ′ from both sides of the bottom film 1 is folded at the second fold B, B ′ near the center of the bottom film 1, Both sides of the second folded film folded at the second fold are folded again by hand-folded folds T and T ′, and the hand-held double film portions D and D ′ are formed outside the positions of the first folds A and A ′. From the side edges of the hand-folded folds T, T ′ of the double film to the vertical edge 7 of the second folded film, they are welded by two pairs of hand-welding lines E extending approximately 45 degrees toward the center, , T ', the hand tapes are formed by separating the hand tapes 5 and 5', and the first fold lines A and A 'to the second fold lines B and B' and the bottom film 1 are formed. Centered at an angle of approximately 45 degrees to the intersections F, F ', G, G' A vertically long type characterized by having a bag body portion comprising a bottom portion formed by welding at four spreading bottom portion welding lines H, H ′, J, and J ′ and a lateral side surface formed by a second folded film. Handbag for goods.   The hand bag for a vertically long article according to claim 4, wherein four bottom welding wires are formed by fusing.   At least one of the four bottom weld lines or the two pairs of hand-welded weld lines is a heat-sealed weld line, and a double film residue R mechanically cut along the outside of the heat-sealed weld line remains. The handbag for a vertically long article according to claim 4.   5. The strength of the end portion of the welded portion is increased by bending the end portion from the center of at least one of the four bottom weld lines or the two pairs of hand-welded weld wires in a direction that extends toward the center. A handbag for a vertically long article according to claim 5 or claim 6.

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