JP2019108154A - Cover for flower pot - Google Patents

Abstract

To provide a cover for a flower pot that is difficult to tear.SOLUTION: A flower pot cover 7 in which a notch 31 is formed on a lower bottom 24 side between a central part 243 and the legs 21 and 22 welded together when belt-like films 11 and 12 in which two sheets are stacked are thermally fused at an angle in the width direction to form a trapezoidal shape at the time of the fusion, and the lower bottom 24 of a trapezoid is shorter than an upper bottom 23.SELECTED DRAWING: Figure 5

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a flower pot cover which is produced by surrounding and melting a flower pot and thermally cutting two stacked films in a trapezoidal shape.

  Flower pot covers are used for shipping potted plants, etc., and the plants are protected by packaging covered with pots and flower pot covers. The flower pot cover is formed according to the shape of the pot, and the inverted truncated cone shape pot is formed with the flower pot cover in the shape of an inverted cone which matches the shape of the pot. Such flower pot covers include, for example, those produced by heat fusion cutting of two stacked films, which have a planar shape at the time of manufacture, and which are spread at the time of packaging of the flower pot and three-dimensional reverse. It becomes a truncated cone shape. Patent Document 1 below discloses a method of manufacturing such a flower pot cover.

  In the method of manufacturing the flower pot cover, a film roll on which the first film and the second film are respectively wound is prepared. Then, the two film rolls are disposed one above the other and supported rotatably. From the two film rolls, the first film and the second film are respectively fed in a tensioned state. During the delivery, the first film and the second film are stacked one on top of the other, and the first film and the second film in the stacked state are simultaneously cut by the heat cutter. At this time, the first film and the second film are cut so that the shape is an isosceles trapezoid, the leg portions on both sides are welded, and the upper cover and the lower base are opened to make a flower pot cover. Ru.

JP-A-7-195586

  The flower pot cover created by heat melting is inserted into the flower pot in a three-dimensionally expanded state. At this time, since the flower pot cover is an inverted truncated cone whose diameter decreases in the insertion direction, the flower pot inserted is stored so as to be caught on the narrowest lower end portion, and the weight of the flower pot and the momentum at the time of insertion Is added to the lower end portion of the flower pot cover. And when the power at that time was large, the lower end of the welding line of the cover for flower pots might tear. In order to wrap many flower pots with a cover for flower pots, for example, in order to increase the working efficiency, the support for flower pots as it is in a flat state is suspended by hanging two support rods through the upper bottom side. The bottom side is spread in the state and the flower pot is put inside. At that time, the worker releases the flower pot halfway, so the flower pot cover receives the floured flower pot and the welding line may be split. Then, when the welding line is torn, if the torn area is large, the inserted flower pot is dropped.

  Then, this invention aims at providing the cover for flower pots which is hard to tear, in order to solve this subject.

The flower-bowl cover according to the present invention is formed by heat-melting cutting a belt-like film formed by overlapping two sheets at an angle in the width direction so that the shape at the time of the melting cutting becomes a trapezoid. In the case where the length is shorter than the bottom, a notch is formed on the lower bottom side between the central portion and the legs on both sides welded.
Further, according to another aspect of the invention, the top of the notch portion facing the upper bottom side is formed in an arc shape.
In the cover for flower pots of the other invention, the notch is formed in the vicinity of the leg.

Further, according to another aspect of the invention, the notch cover is formed so as to cut the leg portion obliquely.
In the cover for flower bowls of the other invention, in the notch portion, a plurality of cut portions directed to the upper bottom side are continuous, and the cut depth to the upper bottom side is the central portion of the lower bottom It is formed to become deeper in order toward the legs.
Further, according to another aspect of the present invention, there is provided a flower pot cover according to the present invention, in which a plurality of cut portions whose notch portions face the upper bottom side are continuously formed on the entire lower bottom.

According to the flower pot cover according to the present invention, two belt-like films can be stacked, heat-melted in a trapezoidal shape, and spread to form an inverted truncated cone shape so as to surround the flower pot in it. . At that time, even if the flower pot cover is to receive the flower pot, the notch is welded so that the force does not act on the lower end of the portion (welding line) or does not act easily, Makes it difficult to tear the end of the welding line.
Further, by forming the top portion toward the upper bottom side of the notch portion in an arc shape, even if the notch portion is pulled, the portion is not easily torn.
Further, by forming the notched portion in the vicinity of the leg portion, that is, in the vicinity of the welding line, it becomes difficult for the force to act on the welding line end.

In addition, by cutting the notched part diagonally into the leg part, that is, the welding line, the welding line end part which becomes acute angle is not restrained from the surrounding part, and it escapes so that the load of the flower pot is not applied. Make it hard to tear.
In addition, by successively deepening the notched portion toward the leg portion, that is, the welding line, the stress applied to the notched portion is reduced, and it becomes difficult to tear even if it is pulled strongly.
In addition, by forming the notch portion on the entire lower base side, the location where stress concentration of the force applied by the flower pot is dispersed is made to make it difficult to tear the end portion of the welding line.

It is the figure which showed the state at the time of use of the cover for flower pots simply. It is the figure which showed notionally the state at the time of manufacture of the cover for flower pots. It is the perspective view which showed concretely the shape at the time of three-dimensionally unfolding about the cover for flower pots of an isosceles trapezoidal shape in a planar state. It is the perspective view which showed one Embodiment of the cover for flower pots which put the pot. It is the figure which showed one Embodiment of the cover for flower pots in the planar state. It is the figure which showed the other example of the notch part formed in the cover for flower pots. It is the figure which showed a part of cover for flower pots provided with the notch part which was cut in diagonally with respect to the welding line. It is the figure which showed the notch part of three patterns formed in the cover for flower pots.

  Next, an embodiment of a flower pot cover according to the present invention will be described below with reference to the drawings. FIG. 1 is a view simply showing the state of the flower pot cover in use. In the shipping of potted flowers and the like, a cover for flower pot is used, and as shown in FIG. 1, the pot 3 and the flower 5 are packaged so as to be surrounded by the cover 1 for flower pot. The present embodiment mainly corresponds to the bowl 3 in the shape of an inverted truncated cone, and the flower pot cover 1 is formed to have the same shape of the inverted cone according to the size of the bowl 3. The flower pot cover 1 is in a flat state at the time of manufacture, transport and storage, but at the time of use, it has a three-dimensional shape as illustrated.

  On the other hand, the shape at the time of use is a cylindrical shape opened up and down, and it has an inverted truncated cone shape in which the upper side is wider than the lower side. The flower pot cover 1 is stopped at a position where the side portion and the lower end opening portion 101 of the pot 3 have the same diameter as shown, and spreads upward along the pot 3 to enclose the flower 5. It will be. The lower end opening portion 101 of the flower pot cover 1 is attached in close contact with the pot 3 in a slightly pulled state.

  Next, the shape and structure of the flower pot cover 1 will be described in detail. FIG. 2: is the figure which showed notionally the state at the time of manufacture of the cover 1 for flower pots. The flower pot cover 1 uses two film rolls in which a first film 11 and a second film 12 having the same width dimension are wound in substantially the same manner as the conventional example. The first and second films 11 and 12 are transparent synthetic resin films such as polyethylene and polypropylene having a thickness of about 0.02 to 0.03 mm. Such a film may be such that it is finely perforated throughout.

  The first film 11 and the second film 12 are delivered from each film roll with tension applied, and the widths are aligned to be overlapped vertically as shown in FIG. 2 (the second film 12 positioned below is Does not appear). And the 1st film and the 2nd film which were piled up simultaneously are fused by heat cutter.

  A heat cutter (not shown) is disposed at an angle in the width direction of the first and second films 11 and 12. In particular, the two heat cutters are disposed at predetermined intervals in the traveling direction indicated by the arrows at symmetrical angles. The first and second films 11 and 12 thermally fused at the same time by the heat cutter are cut in the width direction and at the same time the cut portions are welded. By heat fusion cutting at two points in the direction of travel, the flower pot cover 1 having an isosceles trapezoidal shape is formed in a planar state. With respect to the flat cover 1, the welded portions (welding lines) 21 and 22 are trapezoidal legs. Further, in the present embodiment, among the width direction end portions of the first and second films 11 and 12, the longer one is a trapezoidal upper base 23 and the shorter one is a trapezoidal lower base 24.

  Since the first and second films 11 and 12 are separated at the upper bottom 23 and the lower bottom 24 of the flower pot cover 1, as shown in FIG. 3, the three-dimensional spread is the same as FIG. Inverted truncated cone shape. However, in reality, the upper bottom 23 and lower bottom 24 do not all have the same height at the same height, and when the center line is vertically aligned and expanded in a cylindrical shape, the positions of the welding lines 21 and 22 are high. It gets lower as you move away from it. In the case of the lower base 24 shown in FIG. 2, the welding line lower ends 241 on both the left and right sides are higher than the lower base central portion 243. That is, the flower pot cover 1 does not have an accurate inverted truncated cone as shown in FIG. And if the pot 3 which planted the flower 5 etc. as shown in FIG. 1 is put into such a cover 1 for flower pots, as described in the above-mentioned conventional example, by the weight and the momentum at the time of insertion. The welding line lower end 241 may be torn.

  About the cause which the cover 1 for flower pots tears, the following is considered. As shown in FIG. 3, the side of the pot 3 does not overlap well, as shown in FIG. 3, and the lower bottom line 245 is caught on the side of the pot 3. Therefore, when the flower pot is inserted from the top as shown by the dashed dotted arrow with respect to the cover 1 for flower pots, if the flower pot is released halfway by the worker, a large load may be caused by the weight of the pot 3 or the like. Act along the lower base line 245. In particular, since a large load is applied to the lower bottom central portion 243 at the lowest position, it is considered that a force F1 in both the left and right directions acts on the welding line lower end 241 so as to be pulled in that direction.

  The fact that the welding line lower end 241 is torn is considered to be caused when the force F1 is large and when other conditions are met. However, it is difficult to find the root cause because the flower pot cover 1 tears at a rate of one in several thousand in practice, but in this embodiment, a large force is applied to the lower end 241 of the welding line that is most easily torn. We propose a flower pot cover that does not work or does not work well. Here, FIG. 4 is a perspective view showing the flower pot cover of the present embodiment in which the pot 3 is placed. As shown in FIG. 2, the flower pot cover 7 is formed such that the first and second films 11 and 12 stacked on each other are thermally cut in the width direction to have an isosceles trapezoidal shape in a planar state. Therefore, since it is formed by the same manufacturing method as the cover 1 for flower bowls shown in FIG. 3, it attaches | subjects and demonstrates the same code | symbol about the same component.

  In the manufacture of the flower pot cover 7, a notch 31 as shown in FIG. 5 is further formed on the lower bottom 24 side, and in use, the notch 31 sandwiches the welding line 21 as shown in FIG. It arranges (same as welding line 22 side). FIG. 5 is a view at the time of non-use showing the flower pot cover 7 in a planar state. The flower pot cover 7 is formed in an isosceles trapezoidal shape in a flat state as described above, but a plurality of sheets are stacked in the flat state, and the notch 31 is cut on the lower base 24 side by die cutting. Be done. Such a notch 31 is formed in at least one place between the lower bottom central portion 243 and the welding line lower end 241 on the left and right sides, and depending on the cutting depth, the welding line lower end 241 as illustrated. Is preferably in the vicinity of And it is preferable that the top part of the notch | incision side facing the upper bottom 23 side is formed in circular arc shape so that it may not tear from the notch part 31. As shown in FIG.

  When the flower pot is inserted from above into the flower pot cover 7 as shown in FIG. 3, the pot 3 is stored so as to be hooked on the lower bottom line 245 as shown in FIG. Then, it is considered that a large load is applied to the lower bottom central portion 243 at the lowest position, and a force F2 acts on the lower bottom line 245 so as to be pulled in that direction. However, in the present embodiment, since the notch 31 is present in the lower base line 245, the force F2 is not directly applied to the lower end 241 of the welding line. That is, the transmission of the force to the lower end 241 of the welding line is interrupted by the notch 31, and a tension point of the force F 3 is generated at the point 25 near the top of the notch 31. This applies not only when the flower pot is inserted, but also when the pot 3 is pushed into the lower base line 245 so as to be in the state of FIG.

  Therefore, in the present embodiment, the notch 31 is formed in the lower bottom line 245, so that the welding line lower end 241 is not pulled by a large load acting on the lower bottom central portion 243, or the pulling force becomes weak. Therefore, even if the flower pot is vigorously inserted into the flower pot cover 7, the welding line lower end 241 is less likely to be torn. Such a thing can acquire the same effect also in the notch parts 32 and 33 shown in FIG. FIG. 6 is a view showing another example of the notch. In FIG. 6A, a plurality of notches 33 having the same shape as the flower pot cover 7 are formed in the lower base line 245. The presence of a plurality of notches 33 causes stress concentration at each location, so that the lower end of the welding line 241 is less likely to be torn even when the load when the flower pot is inserted is dispersed.

  On the other hand, the notch 32 shown in FIG. 6 (B) is formed to be obliquely cut into the welding lines 21 and 22. As a result, the force applied to the welding line lower end 241 can be more easily released. FIG. 7 is a view showing a part of the flower pot cover provided with the notch portion 34 formed by paying attention to such a point, and the welding line lower end 241 is shown from the front by changing the direction in the round frame. ing. The notch 34 has a deeper cut toward the upper bottom 23 side, and a triangular portion 26 with the welding line lower end 241 formed at an acute angle is formed at a location between the left and right notches 34. There is. The flower pot cover 8 of the present embodiment is the same as the flower pot cover 7 shown in FIG. 4 except for the notch 34.

  When the flower pot is inserted from above into the flower pot cover 8, the pot 3 is stored so as to be hooked on the lower bottom line 245 (see FIG. 4). A large load is applied to the lower bottom central portion 243 at the lowest position, and a force F5 acts on the lower bottom line 245 so as to be pulled in that direction, and a force F6 is generated at the point 27 around the notch 31. It will be. Furthermore, since the tip end portion of the triangular portion 26 has freedom without being constrained from the surrounding portion, for example, as illustrated, the triangular portion 26 can be bent outward by the resistance of the pot 3. In this manner, the welding line lower end 241 is less likely to be torn by the end portion of the triangular portion 26 escaping from the load of the flower pot. In addition, even if it is the notch part distant from the welding line lower end 241 like the notch part 31 shown in FIG. 5, the same effect can be anticipated by making the cutting depth deep.

  FIG. 8 is a view showing three patterns of an example of a notch formed in the flat cover for a flower bowl in a flat state. FIG. 8 (A) shows the notch 34 of the flower bowl cover 8 shown in FIG. 7, and FIGS. 8 (B) and 8 (C) show its modification. In any case, the triangular portion 26 in which the welding line lower end 241 has an acute angle is formed. FIG. 8 (B) is a flower pot cover 8b in which a shallow large notch 35 is continuously formed on the lower bottom central portion 243 side toward the deeply cut notch 34. As shown in FIG. Further, FIG. 8C shows a flower pot cover 8 c in which a notch 36 is formed in the lower bottom central portion 243 in addition to the notch 34 and the notch 35.

  The flower pot cover 8 b shown in FIG. 8B can increase the stress also in the portion by the addition of the notch portion 35 and can reduce the stress applied to the notch portion 34. Further, the flower pot cover 8b has a load such that the side surface of the pot 3 is hooked on the lower bottom central portion 243, and a tongue 28 projecting on the lower bottom 24 side between the notches 34 and 35 It is thought that the load also acts. Therefore, also in the flower pot cover 8b, the lower end of the welding line 241 is less likely to be torn by the triangular portion 26 escaping from the load of the flower pot.

  The flower-pot cover 8c shown in FIG. 8C has a lower-bottom central portion 243 which intensively receives the load when the flower-pot is inserted by adding the cutouts 35 and 36 in addition to the cutout 34. Is eliminated, and the load is dispersed by the new waveform bottom line 29. Thereby, the stress applied to the notch 34 can be reduced. And in this flower pot cover 8c, the triangular portion 26 escapes from the load of the flower pot to make it difficult for the welding line lower end 241 to tear.

  As described above, according to the flower pot cover of the present embodiment, the worker is more likely to avoid the welding line lower end 241 being much more difficult to avoid than before, and the worker performs the packaging operation in which the flower pot is released halfway and inserted. You can do it at ease. This means that even if the flower pot cover tears at a rate of several thousand pieces, the worker must be cautious in view of the damage to the flower pot if it is torn. On the other hand, although it is conceivable that there is a cause for the welding failure at the lower end of the welding line 241, there is a cause for tearing the welding line lower end 241 to points 25 and 27 according to the flower pot cover of this embodiment. I am trying to move. Therefore, even if there is a defect in welding, it is possible to make it difficult to tear, the worker can perform the packaging work with ease, and the work efficiency is also improved.

Although one embodiment of the present invention has been described, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.
For example, the formation of the notched portion is an example, and the shape, the depth of cut, the position, the number, and the like are not limited to the embodiment of the present invention.
Moreover, since the cover for flower pots which is the title of the invention is based on the fact that flowers are symbolic as an object to be packaged, the cover for flower pots is not limited to the flowers to be packaged, and Plants other than flowers may be planted.

1, 7, 8: Cover for flower pot 3 ... Pot 5 ... Flower 11 ... 1st film 12 ... 2nd film 21, 22 ... Welding line 23 ... Top bottom 24 ... Bottom bottom 26 ... Triangular section 31, 32, 33, 34, 35, 36 ... Notched portion 241 ... Welding line lower end 243 ... Lower bottom central portion 245 ... Lower bottom line

Claims (6)

It is a cover for flower pots formed so that the shape at the time of the said fusion cutting becomes a trapezoid by heat-melting cutting the belt-like film which piled up two sheets in the width direction at an angle,
In the case where the lower base of the trapezoid is shorter than the upper base, the lower base is provided with a notch portion formed between the central portion thereof and the legs welded on both sides.   The flower-pot cover according to claim 1, wherein the notch portion is formed such that a top portion facing the upper bottom side is formed in an arc shape.   The flower pot cover according to claim 1 or 2, wherein the notch is formed in the vicinity of the leg.   The flower-pot cover according to any one of claims 1 to 3, wherein the notch portion is formed so as to cut the leg portion obliquely.   The notch portion is formed such that a plurality of cut portions directed to the upper bottom side are continuous, and the depth of the cut to the upper bottom side becomes deeper in order from the central portion of the lower bottom to the leg portion A flower pot cover according to any one of claims 1 to 4. The cover for a flower according to any one of claims 1 to 5, wherein the notch portion is formed on the entire lower base continuously with a plurality of cut portions directed to the upper base side.

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