JP2011131918A - Package, packaging method, and packaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a package, a packaging method, and a packaging apparatus which maintain the safety of a packaged state and provide a unique package form. <P>SOLUTION: The package 10 is constituted by presupposing a packaged article 5, such as a candy, and a cylindrical film 20 in which the packaged article 5 is packaged by sealing together a pair of end-side parts 22a and 22b in the longitudinal direction (vertical direction in the figure) and the lateral direction (lower left and upper right in the figure). The end-side parts 22a and 22b of the film 20 are each turned in the same direction relative to the packaged article 5 to squeeze a gap between each of the end-side parts 22a and 22b and the packaged article 5. As a result, the appearance shape of the package 10 is changed as its sealed condition is maintained. This prevents a person from touching the packaged article 5 from outside, thus maintaining the safety of the packaged state and provideng a unique candy-shaped package form. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a packaging body, a packaging method, and a packaging device, and more particularly to a packaging body, a packaging method, and a packaging device for packaging an article to be packaged such as a bag with a film.

  In a packaging device for packaging an article to be packaged with a film, for example, a packaging device is proposed in which a bag or the like is accommodated in a tubular film and then twisted at both ends (for example, Patent Document 1). The package manufactured using such a packaging apparatus is demonstrated below using figures.

  FIG. 12 is a schematic perspective view showing a conventional package, in which (1) shows a semi-wrapped state before twisting the film, and (2) shows a completed state after twisting the film. It is.

  First, referring to (1), the semi-wrapping body 81 is composed of a cylindrical film 85 whose top and bottom are open, and a package 5 such as a bag housed in the film 85. Then, as shown by the arrows in the figure, when each of the upper and lower end side portions 86a and 86b of the semi-wrapped body 81 is twisted in the same direction with respect to the packaged object 5, a package 80 shown in (2) is obtained. .

Next, referring to (2), in the package 80, the film 85 in which the position between each of the end side portions 86a and 86b and the article 5 to be wrapped is twisted over the entire surface of the article 5 to be wrapped. Packaged to cover. And the to-be-packaged object 5 can be taken out easily by pulling each of the both ends of the film 85 to the outward side (upper and lower sides).
In addition, a packaging method has also been proposed in which what is to be packaged by a so-called horizontal pillow wrapping with a film is square-folded and further twisted (Patent Document 2 or Patent Document 3).

JP 2008-137716 A JP-A 63-281916 JP-A-1-58608

  The package disclosed in Patent Document 1 as described above has a problem in safety because the package is not sealed. Specifically, in the conventional package, the package can be easily taken out, but after the package is taken out, it can be returned to the packaging state shown in FIG. is there.

  As a solution to such a problem, there is a packaging method disclosed in Patent Document 2 or Patent Document 3. However, all of these packaging methods are packaging methods in which the ears on both sides with seals are raised and bent along the upper surface of the object to be packaged, and the ears are overlapped and twisted at the center of the object to be packaged. Therefore, it does not become a peculiar candy type packaging form as shown in FIG.

  The present invention has been made to solve the above-described problems, and has an object to provide a package, a packaging method, and a packaging device having a unique packaging form while maintaining the safety of the packaging state. To do.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a package, in which a package object and a pair of end side parts in a longitudinal direction and a width direction, which contain the package object, are sealed. The film is twisted at a position between at least one of the end side portions and the article to be packaged.

  If comprised in this way, an external appearance shape will change in the state by which the sealing state was ensured.

  According to a second aspect of the present invention, in the configuration of the first aspect of the invention, the film is such that each of the end side portions is twisted in the same direction with respect to the package.

  If comprised in this way, a twist will be eliminated if each end side part is pulled outward.

  According to a third aspect of the present invention, in the configuration of the first or second aspect of the present invention, the pressure of the gas around the package on the inner side of the film is the pressure of the air on the outer side of the film. It ’s bigger.

  If comprised in this way, a film will not be in the close_contact | adherence state with respect to a to-be packaged object.

  According to a fourth aspect of the present invention, in the configuration of the third aspect of the present invention, the gas is an inert gas.

  If comprised in this way, it will be hard to give an influence of oxidation etc. with respect to a to-be-packaged object.

  The invention according to claim 5 is a packaging method for packaging an article to be packaged with a film, wherein the belt-like film is deformed into a cylindrical shape with the longitudinal direction as an axial direction, and the article to be packaged is accommodated therein. In one step, the deformed film is sealed in the longitudinal direction, the outer end portions in the axial direction of the package are sealed in the width direction, and the pressure of the gas around the package is external A second step of adjusting the pressure to be smaller than the pressure of the gas, and a third step of twisting the sealed film at a position between at least one of the both end portions and the article to be packaged.

  If comprised in this way, the pressure of the gas around the to-be-packaged object which raises by twist will not become excessive.

  According to a sixth aspect of the present invention, in the configuration of the fifth aspect of the present invention, in the first step, the article to be packaged is stored in the film while being conveyed at a predetermined interval, and the second step is continuously conveyed. The step of discharging at least part of the gas inside the film between the objects to be packaged, the step of sealing in the longitudinal direction with respect to the film from which the gas has been discharged, and the film sealed in the longitudinal direction And a step of sealing in the width direction and cutting in the width direction at the center thereof.

  If comprised in this way, the space between to-be-packaged objects turns into sealed space.

  According to a seventh aspect of the invention, in the configuration of the fifth or sixth aspect of the invention, the second step further includes a step of replacing the gas around the package with an inert gas.

  If comprised in this way, desired gas will be enclosed around the to-be packaged object.

  The invention according to claim 8 is a packaging device for packaging an article to be packaged with a film, wherein the belt-like film is deformed into a cylindrical shape with the longitudinal direction as an axial direction, and the article to be packaged is accommodated therein. Before the sealing by the packaging storage means, the sealing film that seals the deformed film in the longitudinal direction, and seals the both end portions on the outer side in the axial direction of the package in the width direction, Adjusting means for adjusting the pressure of the gas around the package to be smaller than the pressure of the external gas, and the position of the film sealed by the sealing means between at least one of both end portions and the package And twisting means for twisting.

  If comprised in this way, the pressure of the gas around the to-be-packaged object which raises by twist will not become excessive.

  As described above, the invention according to claim 1 has a unique packaging form while maintaining the safety of the packaging state because the appearance shape changes in a state where the sealing state is ensured.

  In addition to the effect of the invention described in claim 1, the invention described in claim 2 can be easily taken out because the twist is eliminated by pulling each of the end side portions outward.

  In addition to the effects of the invention described in claim 1 or 2, the film according to claim 3 does not come into close contact with the package, so the gas around the package becomes an air cushion. The packaged goods are protected.

  In addition to the effect of the invention described in claim 3, the invention described in claim 4 is less likely to be affected by oxidation or the like on the package, so that the period for maintaining the quality of the package is extended.

  In the invention according to claim 5, since the pressure of the gas around the article to be package that rises by twisting does not become excessive, it is possible to prevent the film from bursting and the like, and thus the reliability at the time of packaging is improved.

  According to the sixth aspect of the invention, in addition to the effect of the fifth aspect of the invention, the space between the items to be packaged becomes a sealed space, so that it is easy to adjust the gas discharge.

  In addition to the effects of the invention described in claim 5 or claim 6, the invention described in claim 7 encloses a desired gas around the package, so an appropriate gas is selected according to the package. it can.

  In the invention according to claim 8, since the gas pressure around the article to be package that rises by twisting does not become excessive, the film can be prevented from being damaged, and the reliability during packaging is improved.

It is a schematic perspective view which shows the package body by 1st Embodiment of this invention. It is a schematic perspective view which shows the semi-wrapping state before twisting the package body shown in FIG. It is a schematic perspective view which shows the packaging apparatus for manufacturing the package shown in FIG. It is a schematic sectional drawing of the longitudinal direction which shows the process of the packaging apparatus shown in FIG. It is a schematic sectional drawing of the width direction which shows the process of the packaging apparatus shown in FIG. It is the expansion perspective view which showed the part of the air exhaust pipe shown in FIG. It is an expanded sectional view of the VII-VII line shown in FIG. It is sectional drawing of the VIII-VIII line shown in FIG. It is an expansion perspective view which shows the part of the end seal block shown in FIG. It is a schematic perspective view which shows the package body by 2nd Embodiment of this invention. It is a schematic perspective view which shows the package body by 3rd Embodiment of this invention. It is a schematic perspective view which shows the conventional package body.

  FIG. 1 is a schematic perspective view showing a packaging body according to the first embodiment of the present invention, and FIG. 2 is a schematic perspective view showing a semi-wrapping state before twisting the packaging body shown in FIG.

  First, referring to FIG. 2, the semi-wrapped body 11 includes a packaged object 5 such as a bag and a packaged object 5 in a longitudinal direction (vertical direction in the figure) and a width direction (diagonal lower left and diagonally in the figure). It is in the state of what is called pillow packaging comprised from the cylindrical film 20 by which a pair of edge part side part 22a, 22b of (upper right direction) was sealed. In addition, a cut 23 is formed on the outer side of the central portion of the portion sealed in the longitudinal direction of the film 20, and both end portions in the longitudinal direction of the film 20 are formed in a plurality of mountain shapes.

  And if each of the edge part side parts 22a and 22b of the film 20 of the semi-wrapping body 11 is rotated in the same direction with respect to the package 5 as shown by the arrows in the figure, each of the edge part side parts 22a and 22b. 1 is twisted to form the package 10 shown in FIG.

  In addition, by twisting the semi-packaging body 11 in this way, the pressure of the air around the package 5 in the film 20 increases. However, in the semi-packaging body 11, the pressure of the air around the package 5 in the film 20 is adjusted to be smaller than the pressure of the external gas. Therefore, even if it deform | transforms into the package 10 shown in FIG. 1, the pressure of the air which raises by twist does not become excessive, and there is no possibility that the film 20 may burst and break.

  Next, with reference to FIG. 1, the external shape of the package 10 is changed in a state in which the sealed state of the film 20 in the semi-package 11 shown in FIG. 2 is ensured. Therefore, in the package 10, since the package 5 cannot be directly contacted from the outside, the safety of the packaged state can be maintained, and a unique candy type packaging form is obtained.

  Further, as described above, since each of the end side portions 22a and 22b of the film 20 is twisted in the same direction with respect to the article 5 to be packaged, each of the end side portions 22a and 22b of the package 10 is outwardly moved. If it pulls to, twist will be eliminated and it will become the half package 11 shown in FIG. Therefore, it becomes easy to take out the package 5 from the film 20. The film 20 can be cut in the width direction from the cut line 23 and in the longitudinal direction from the mountain-shaped portion. Therefore, since the opening of the film 20 becomes easy, it becomes easier to take out the package 5 from the film 20.

  Next, a packaging apparatus for producing such a package 10 will be described.

  FIG. 3 is a schematic perspective view showing a packaging device for producing the package shown in FIG.

  The packaging device 30 includes a bag making device 31 that transforms the belt-shaped film 20 that is a packaged object storage means into a cylindrical shape with the longitudinal direction as an axial direction (diagonal lower right direction in FIG. 3), and the belt-shaped film 20. The transfer device 32 for storing the package 5, the air discharge pipe 33 for adjusting the pressure of the gas around the packaged object 5, which is an adjustment unit, and the cylinder, which is a seal unit, are deformed. The center seal rollers 34a and 34b for sealing the film 20 in the longitudinal direction, the end seal blocks 35a and 35b for sealing the deformed film 20 in the width direction, and the ends of the film sealed by the sealing means, which are twisting means, are gripped. It is mainly comprised from the twist apparatus 36 which twists by.

  Below, the detailed structure and operation | movement of the packaging apparatus 30 are demonstrated in order from an upstream.

  4 is a schematic sectional view in the longitudinal direction showing the process of the packaging apparatus shown in FIG. 3, and FIG. 5 is a schematic sectional view in the width direction showing the process of the packaging apparatus shown in FIG. ) Indicates a packaged article storage position (S1), and (2) indicates a center seal position (S4).

  Referring to these drawings and FIG. 3, the transfer device 32 includes a closed-loop chain 41 hung on the sprocket 43, and an article to be packaged supplied from a separation layer (not shown) fixed to the chain 41 at a predetermined interval. 5 is composed of a plurality of transfer rods 42 that push each of them from the rear. When the sprocket 43 is rotated in the clockwise direction in FIG. 4 by a drive device (not shown), the transfer rod 42 fixed to the chain 41 moves the package 5 on the support rail (not shown) to the downstream side (right side in FIG. 4). ) To the package storage position S1. In that case, the to-be-packaged object 5 is set so that it may pass between the side plates 46a and 46b of the bag making machine 31 mentioned later.

  The bag making device 31 arranged at the packaged object storage position S1, which is an intermediate position of the transfer device 32, is attached to each of the pair of side plates 46a, 46b and the side plates 46a, 46b facing each other in the width direction. The guide vanes 47a and 47b formed so as to become lower toward the side and the side plates 46a and 46b provided on the lower side of the side plates 46a and 46b are narrower than the interval in the width direction so that the transfer rod 42 can pass therethrough. And a pair of plate-like sheet aligning plates 48a and 48b.

  Since the bag making device 31 is configured as described above, the belt-like film 20 fed out from a reel (not shown) is placed on the outer periphery of the package 5 to be transferred to the transfer rod 42 by the guide action of the guide blades 46a and 46b. Curved along. Further, the sheet aligning plates 48a and 48b form a vertical state in which the lower portions 21a and 21b are substantially overlapped. In other words, the package 5 is stored in the cylindrical film 20. Note that an adhesive that is welded by heat is applied to a portion of the inner surface of the film 20 that is sealed by sealing means described later.

  The film delivery rollers 51a and 51b disposed on the downstream side of the bag making machine 31 are formed in a disc shape, and are arranged so that each circular outer edge sandwiches the lower portions 21a and 21b of the film 20. Yes. Further, each of the film delivery rollers 51a and 51b is moved to the downstream cut position S2 while pressing the lower portions 21a and 21b of the film 20 with a driving device (not shown) as an axis perpendicular to the longitudinal direction. It is comprised so that it may rotate in the delivery direction (the direction of the arrow of FIG. 3).

  The cutting device 54 disposed at the cut creation position S2 includes a cutter 55 that is movable in the width direction. And it is a part of the lower side of the package 5 of the lower parts 21a and 21b of the film 20, and the position corresponding to the package 5 is cut by the movement of the cutter 55 in the width direction. Form. Thereafter, the film 20 is transferred to the adjustment position S3 on the downstream side.

  Next, the air discharge pipe 33 disposed at the adjustment position S3 will be described.

  6 is an enlarged perspective view showing a portion of the air discharge pipe shown in FIG. 3, FIG. 7 is an enlarged sectional view of the VII-VII line shown in FIG. 6, and FIG. 8 is shown in FIG. It is sectional drawing of the VIII-VIII line.

  Referring also to these drawings and FIGS. 3 to 5, the air discharge pipe 33 is formed in a tubular body 58 and a boat-like shape whose center is expanded in plan view connected to the upper end of the body 58. And a discharge portion 59. Note that a discharge port 60 is formed in the discharge portion 59, and the discharge port 60 is connected to a hollow portion of the tubular body portion 58. Further, the body portion 58 is connected to an air discharge driving device (not shown), and is configured such that air is discharged through the discharge port 60 when the driving device is driven.

  Further, the leading end portion of the discharge portion 59 is disposed between the lower portions 21a and 21b of the film 20 that is not sealed at this stage. Accordingly, the lower portions 21 a and 21 b of the film 20 are sent out downstream while being deformed along the outer edge shape of the discharge portion 59. And when the discharge port 60 is located in the inside 61 of the film 20 between the to-be-packaged objects 5a and 5b conveyed continuously, the film from the discharge port 60 is driven by driving the driving device for air discharge described above. At least a part of the gas (air) in the interior 61 of 20 is discharged. At this time, the discharge amount is adjusted so that the pressure of the gas around the package 5 in the inside 61 of the film 20 becomes smaller than the pressure of the external gas. The reason why at least part of the gas in the inside 61 of the film 20 is discharged by the air discharge pipe 33 will be described later.

  In addition, the inside 61 of the film 20 is closed by the film 20 and the front and back packages 5a and 5b to become a substantially sealed space. Therefore, the air in the inside 61 of the film 20 can be reliably discharged, and the adjustment of the air discharge becomes easy.

  Further, as described above, the lower portions 21 a and 21 b of the film 20 are deformed so that a part thereof swells along the shape of the discharge portion 59. Therefore, since the discharge port 60 faces the inside 61 of the film 20 reliably, air can be discharged reliably.

  Then, the adjusted film 20 is transferred to the center seal position S4 on the downstream side.

  3 to 5 again, each of the center seal rollers 34a and 34b disposed at the center seal position S4 is formed in a disc shape, and seal portions 63a and 63b are formed at the outer peripheral portions of the circle. It has. Each of the center seal rollers 34a and 34b is maintained in a heated state, and a part of each of the seal portions 63a and 63b is disposed so as to sandwich the lower portions 21a and 21b of the film 20. The center seal rollers 34a and 34b are sent out by a driving device (not shown) while pressing the lower portions 21a and 21b of the film 20 toward the downstream side with the vertical direction orthogonal to the longitudinal direction as an axis (the direction of the arrow in the figure). ) To rotate. Since the center seal rollers 34a and 34b are configured in this way, the lower portions 21a and 21b of the film 20 are thermally welded and sealed in the longitudinal direction by the seal portions 63a and 63b, and the end seal on the downstream side is sealed. Transfer to position S5.

  Next, the conveying devices 65a and 65b and the end seal blocks 35a and 35b arranged on the downstream side of the center seal rollers 34a and 34b will be described.

  FIG. 9 is an enlarged perspective view showing a portion of the end seal block shown in FIG.

  Referring to FIGS. 9 and 3 to 5 together, the conveying device 65a is configured to rotate counterclockwise in FIG. 4 in a closed loop by a belt conveyor (not shown). And the conveyance apparatus 65b located under the conveyance apparatus 65a is comprised so that it may rotate clockwise in FIG. 4 with the drive device which is not shown in figure. A plurality of transport plates 66a and 66b are fixed at predetermined intervals on the belt conveyors of the transport devices 65a and 65b. As shown by the arrows in FIG. 9, the transport plates 66 a and 66 b are configured such that each surface overlaps at a position between adjacent objects to be packaged 5 in the film 20. It moves to the downstream side in the state. At that time, the sealed lower portions 21a and 21b of the film 20 are also sandwiched so as to be folded together.

  The end seal blocks 35a and 35b arranged at the end seal position S5, which is an intermediate position between the transfer devices 65a and 65b, are formed in a substantially triangular prism shape, and each of the triangular apex portions extends in the width direction. Portions 67a to 67d are formed. The end seal block 35a located at the upper part is provided with a cutter 68 between the seal portions 67a and 67b, and the cutter 68 is formed so as to slightly protrude from the seal portions 67a and 67b.

  The end seal block 35a is configured to rotate counterclockwise in FIG. 4 with the width direction as an axis by a driving device (not shown). Further, the end seal block 35b positioned below the end seal block 35a is configured to rotate clockwise in FIG. 4 by a driving device (not shown). Then, each of the seal portions 67a to 67d formed at the apex portions of the end seal blocks 35a and 35b has their rotational positions so as to sandwich the film 20 as the end seal blocks 35a and 35b rotate. Is set. With the film 20 sandwiched in this manner, the portions of the film 20 between the adjacent transport plates 65a to 65d are heated by the seal portions 67a and 67b while being pressurized, and welded and sealed in the width direction. The cutter 68 is cut so as to press the central portion of the seal portion. Then, it becomes the semi-packaging body 11 independent for every to-be-packaged object 5 shown in FIG.

  Since the film 20 is sandwiched between the transport plates 66a and 66b before reaching the end seal position S5, the film 20 and the packaged object 5 are not sealed when sealed in the width direction and cut by the end seal blocks 35a and 35b. There is no risk of deviation.

  Then, the semi-wrapped body 11 formed at the end seal position S5 is transferred to the gripping position S6 while being sandwiched between the transport plates 66a and 66b.

  Next, the gripping device 70 disposed at the gripping position S6 will be described.

  Referring to FIGS. 3 and 4 again, the gripping device 70 includes a trunk portion 73, arms 71a and 71b that are connected to the trunk portion 73 so as to be rotatable in the vertical direction, and tips of the arms 71a and 71b. A gripping member 75 having plates 72a, 72b connected to the portions is provided. The body portion 73 is configured to be rotatable about the width direction as an axis. A plurality of gripping members 75 are fixed at predetermined intervals on a belt conveyor that rotates in a closed loop in the horizontal direction (not shown).

  In addition, each of the gripping members 75 is configured to move in parallel with the article 5 in the film 20 by the belt conveyor described above. Then, the plates 72 a and 72 b are moved by the rotation of the arms 71 a and 71 b, and the packaging object 5 is sandwiched up and down via the film 20. After that, since the holding by the transport plates 66a and 66b is released, there is no possibility that the film 20 and the packaged object 5 are displaced at the time of holding by the plates 72a and 72b. And the trunk | drum 73 is rotated, pinching only by plate 72a, 72b, and it transfers to the downstream twist position S7 in the state rotated 90 degrees centering | focusing on the width direction.

  The twisting device 36 disposed at the twisting position S7, which is an intermediate position of the gripping device 70, has a rotary knob 77a, 77b having a function of sandwiching and twisting the end side portions 22a, 22b of the semi-wrapping body 11, and a rotation. There are knobs 78a to 78d connected to the tips of the knobs 77a and 77b. The rotary knobs 77a and 77b are configured to move in a state of facing the gripping member 75 from above and below, and can be rotated in the same direction about the vertical direction by a driving device (not shown). It is configured as follows.

  The semi-wrapped body 11 transferred to the twisting position S7 is sandwiched between the end pieces 22a and 22b by the knobs 78a to 78d by the twisting device 36. Then, in this state, each of the rotary knobs 77a and 77b is twisted by rotating each of the end side portions 22a and 22b with the vertical direction as the axis in the same direction with respect to the package 5.

  At this time, as described above, since the gas pressure around the package 5 is adjusted at the adjustment position S3 in the semi-wrapped body 11, the pressure of the gas in the film 20 rising due to twisting does not become excessive. Therefore, damage due to rupture of the film 20 due to an increase in gas pressure can be prevented. Therefore, the reliability at the time of packaging by twisting is improved.

  When the twisting by the twisting device 36 is finished, the package 10 shown in FIG. 1 is manufactured. Thereafter, the gripping by the gripping pieces 77a to 77d is released, and the packaging body 10 is rotated again by 90 ° about the width direction by the gripping device 70. Thereafter, the holding of the gripping device 70 by the plates 72a and 72b is released, and the packaging body 10 is dropped into a box or the like (not shown), whereby the production of the packaging body 10 is completed.

  FIG. 10 is a schematic perspective view showing a package according to the second embodiment of the present invention.

  Since the description is basically the same as that according to the first embodiment, the difference will be mainly described.

  Referring to the figure, in the package 13, the film 20 around the package 5 is in a swelled state. That is, the pressure of the air 18 around the packaged object 5 is set to be larger than the pressure of the air on the outer side of the film 20. Therefore, the film 20 is not in close contact with the package 5. Therefore, the air 18 around the packaged article 5 becomes an air cushion, and the packaged article 5 is protected. Moreover, when packaging the to-be-packaged object 5 which has an acute corner | angular part, there is no possibility that the film 20 may be damaged by a corner | angular part.

  And when manufacturing such a package 13, in the adjustment position S3 shown in FIG. 3 etc., the discharge amount of the air from the air discharge pipe 33 is adjusted, and the pressure of the air of the packaged item in the completed state However, what is necessary is just to set so that it may become larger than the pressure of the air of the outer side of the film 20. FIG.

  In the package 13 according to this embodiment, the air 18 may be replaced with an inert gas. If comprised in this way, it will become difficult to give the influence of oxidation etc. with respect to the to-be-packaged object 5. FIG. For this reason, the period for maintaining the quality of the article 5 is increased.

  And when manufacturing the package 13 which has such an inert gas, in the adjustment position S3 shown in FIG. 3 etc., an inert gas is enclosed in the film 20 from the air exhaust pipe 33, and existing air is enclosed. And then the pressure may be adjusted. In this way, since a desired gas can be sealed around the package 5 of the film 20, it is possible to select an appropriate gas according to the package 5.

  FIG. 11 is a schematic perspective view showing a package according to the third embodiment of the present invention.

  Since the description is basically the same as that according to the first embodiment, the difference will be mainly described.

  Referring to the drawing, the package 14 is twisted only at a position between the end portion side portion 22a of the film 20 and the article 5 to be packaged. That is, this is a state after only the end portion 22a of the semi-wrapping body 11 shown in FIG. 2 is rotated and twisted. Such a package 14 has a unique shape as compared with a normal candy type package, and only one of the end side portions 22a and 22b is twisted, so that the manufacturing method becomes easy.

  In the first and second embodiments described above, each of the end side portions of the film of the semi-wrapped body is twisted in the same direction with respect to the package, but each of the end side portions is The package may be formed by twisting in the opposite direction to the package.

  Further, in each of the above embodiments, a packaged object having a specific shape is packaged in the package, but the present invention can be similarly applied to a packaged object of any shape as long as it is a solid material.

  Furthermore, in each of the above embodiments, a film having a specific structure coated with an adhesive is used. However, if the film can be sealed by a sealing means by heating, for example, heat fusion disposed on the inner surface side. It may be a film having a two-layer structure composed of an adhesive plastic film and a non-heat-bondable plastic film disposed on the outer surface side.

  Further, in each of the above embodiments, the film of the package is formed in a plurality of chevron shapes at both ends, and cuts are formed in the film, but these are for easy opening. Yes, both end portions of the film may be linear, or the film may not be formed with cuts.

  Further, in each of the above embodiments, an air discharge pipe is adopted as the adjusting means. However, before sealing by the sealing means, the pressure of the gas around the package is made smaller than the pressure of the external gas. As long as it can be adjusted, other discharge methods may be used. Further, there may be no adjusting means. In that case, it is sufficient that the allowable tensile force of the film is of a size that can withstand the increase in gas pressure due to torsional deformation.

  Further, in each of the above-described embodiments, the packaging device collectively performs the sealing in the width direction of the film and the cutting of the central portion of the sealing portion by the end seal block. The apparatus may be such that the direction seal and the cutting of the central portion of the seal portion are performed separately.

  Furthermore, in each of the above-described embodiments, the packaging device is configured to convey a plurality of packages to be packaged at a predetermined interval, but if the pressure of the gas around the packages in the film can be adjusted, the packages are packaged. The object may be configured to be conveyed and packaged alone.

DESCRIPTION OF SYMBOLS 5 ... Packaged object 10,13,14 ... Packaging body 20 ... Film 22 ... End side part 30 ... Packing device 31 ... Pouch making machine 32 ... Transfer device 33 ... Air discharge pipe 34 ... Center seal roller 35 ... End seal block 36... Twisting device In the drawings, the same reference numerals denote the same or corresponding parts.

Claims (8)

Packaged goods,
A cylindrical film containing the packaged object and having a pair of end portions in the longitudinal direction and the width direction sealed,
The said film is a package body twisted in the position between at least one of the said edge part side part, and the said to-be packaged object.   The package according to claim 1, wherein each of the end side portions of the film is twisted in the same direction with respect to the packaged object.   The packaging body according to claim 1 or 2, wherein a pressure of a gas around an inner side of the film and around the package is larger than a pressure of air on an outer side of the film.   The package according to claim 3, wherein the gas is made of an inert gas. A packaging method for packaging an article to be packaged with a film,
A first step of deforming the belt-like film into a cylindrical shape with the longitudinal direction as an axial direction, and storing the packaged object therein,
The deformed film is sealed in the longitudinal direction, both end portions on the outer side in the axial direction of the package are sealed in the width direction, and the pressure of the gas around the package is externally applied. A second step of adjusting so as to be smaller than the pressure of the gas;
A packaging method comprising: a third step of twisting the sealed film at a position between at least one of the end portions and the article to be packaged. In the first step, the article to be packaged is stored in the film while being conveyed at a predetermined interval.
The second step includes
A step of discharging at least a part of the gas inside the film between the articles to be packaged conveyed continuously;
For the film from which the gas has been discharged, sealing in the longitudinal direction;
The packaging method according to claim 5, further comprising a step of sealing the film sealed in the longitudinal direction in the width direction and cutting in the width direction at a central portion thereof.   The packaging method according to claim 5 or 6, wherein the second step further includes a step of replacing the gas around the article to be packaged with an inert gas. A packaging device for packaging an article to be packaged with a film,
The belt-shaped film is deformed into a cylindrical shape with the longitudinal direction as the axial direction, and a packaged article storage means for storing the packaged article therein.
Sealing means for sealing the deformed film in the longitudinal direction and sealing both end portions on the outer side in the axial direction of the package in the width direction;
Before the sealing by the sealing means, adjusting means for adjusting the pressure of the gas around the package to be smaller than the pressure of the external gas;
The packaging apparatus provided with the twist means which twists the film sealed by the said sealing means in the position between at least one of the said both-ends side part, and the said package.

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