JP3340530B2 - Package and its packaging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package in which the surface of the contents is covered with a film-like package in a tubular form, and a packaging apparatus for producing the same. The present invention relates to an improvement that facilitates peeling of a wrapping material from contents when the wrapping body is used.

[0002]

2. Description of the Related Art For example, Japanese Utility Model Laid-Open Publication No. 48-67079 discloses a conventional tubular package provided with an easy-open seal (a seal that forms an easy peel). Are overlapped so that the inner surface and the outer surface face each other, so-called envelope alignment is performed to form a film overlap portion, and the overlap portion is easily opened and sealed to package a square thin cheese.

By the way, in this rectangular thin cheese package, when the surface film of the overlapping portion of the film is picked up with a finger and the easy-open seal is peeled off, the inner film of the overlapping portion is in close contact with the cheese. When the film is peeled off, there is a problem that the fingertip comes into contact with the cheese, which is unsanitary, and that the cheese may be damaged. The view of the above problems, the actual fair 4-49116 discloses, the length
When you pick up one side film , the other piece
In order that the intermediate layer film to stand up with the surface film, one of the film overlapping portions formed by overlapping the both ends of the packaging material in a closed state is longer than the other,
A package of a sliced food product is proposed in which an easy-open seal is provided at the base of the overlapping portion and the overlapping portion is folded on the surface of the packaging material main body so that the longer side is the surface layer.

[0004]

[SUMMARY OF THE INVENTION However, in the package of sliced food mentioned above, as shown in FIG. 6 of the publication, the raised surface film and the medium
When peeling off the easy-open seal joining the interlayer film, both hands are inevitably required, and the opening operation is performed with the package placed on a table or the like.

[0005] In view of the above circumstances, the present inventors can carry out opening work using the other hand while holding the package with one hand, and use the inner film as the contents like a square thin cheese package. On the contrary, the present inventors have made intensive studies on a package having a structure in which the inner film stands up at the front end so that the inner film can be easily picked up instead of being in close contact, and arrived at the present invention.

[0006]

That is, a package according to the present invention is a package in which the surface of the contents is covered in a tubular shape by a film-like package, and both ends of the packaging material are jointed. are superposed on the state to form a butt seam pieces, with one that the rafter piece is formed longer than the other, the
The long and short gasket pieces are provided with a first easy-open seal at the base approaching the packaging material body surrounding the contents, and the long and short gasket pieces are further laid out so that the longer gasket piece becomes a surface layer. For a film of at least three layers consisting of a long and short apron piece formed by folding on the surface of the packaging material body and the packaging material body, at least the short apron piece near the free end of the short apron piece and the packaging A second easy-open seal is provided between layers of the material body.

[0007] The package of the present invention is preferably
On the side surface of the cylindrical packaging material in the axial direction, the content is exposed, or the packaging material is folded into a pillow shape, and the pillow portion is provided with an easy-open seal. Preferably, these packages are covered with the contents in a flat shape. Further, in the case of a packaging form in which the above-mentioned contents are exposed, it is preferable to collectively package a plurality of packages and airtightly secondary package them with a packaging film. It is good to layer the air in a multi-layer and air-tightly wrap it with a packaging film.

In the package of the present invention, the second easy-open seal in the vicinity of the free end of the short joint piece is long and short as long as it is formed between the layers of the short joint piece and the packaging material main body. It is not always necessary between the joint pieces. Because, as is clear from the description of the unsealing operation to be described later, opened state, with or without a seal provided on the length of the twofold pieces in the second easy-to-open seal, Kagire unsealing is better not to rather seal if it can be said that the probability <br/> real. However, it is not easy to manufacture the package body in which the long and short gasket pieces are not sealed by the second easy-open seal in connection with a packaging device described later (the first easy-open seal and the first easy-open seal are not sealed). (It is also necessary to provide a sufficient space between the first easy-open seal and the second easy-open seal.) Also, there is a high risk that the first easy-open seal may be peeled off due to external force or vibration applied to the package at the time of secondary packaging or transportation. Things. That is,
The second easy-open seal reinforces the first easy-open seal
Is responsible for. Therefore, it is preferable that the second easy-open seal is provided over all three layers of the film including the long and short gasket pieces and the packaging material main body.

As described above, since the unsealing state is not related to the presence or absence of the seal between the long and short joint pieces in the second easy-open seal, in this specification, the above-described preferable effects are described in describing the operation and effect of the invention. Only the package having the second easy-open seal will be described.

On the other hand, the packaging apparatus of the present invention comprises: a first molding member for forming a long film-shaped packaging material into a cylindrical shape and overlapping both ends of the packaging material in a folded state; First sealing means for easily opening and sealing the superposed gasket piece at a base portion approaching the cylindrical packaging material main body, and a first sealing means provided at a stage subsequent to the first sealing means, and A second molding member for folding on the surface of the main body, and a second seal for easily opening and sealing at least a three-layer film composed of a joint piece formed by folding by the second molding member and the packaging material main body Means, filling means for filling the inside of the packaging material body which is easily opened and sealed by the second sealing means, transport means for transporting the packaging material filled with the content, and continuous means by the transport means. Sending And it is characterized in that comprising a cutting means for cutting the continuous package to a predetermined length to be.

Here, it is preferable that the conveying means is a film feed roller and / or a rolling roller for forming a flat shape by rolling the packaging material together with the contents filled therein, and further, Preferably, between the transporting means and the cutting means, the continuous package continuously fed by the transporting means is intermittently wrung in the width direction to form a narrowed portion from which the contents have been removed and to facilitate the narrowed portion. Ironing and sealing means for opening and sealing or cooling means for cooling the continuous package are provided.

[0012]

In accordance with the according invention, at the time of forming a planar packaging material into a tubular shape, structure overlay film at an end portion in the width direction of the wrapping material, packing material in contact with the contents of inner body, at least 3 to one end of the intermediate layer (the shorter butt seam pieces) of wrapping material is folded from the packaging body, and the other end portion of the packaging material (the longer butt seam pieces) and Table layer It has a layered structure of layers. And the easy-open seal applied to such a superposed structure is the first one.
In the vicinity of the easy-to-open seal (seal line L in the figure) the turning point to one end of the packaging material from the packaging material body, provided that the table layer film and the intermediate layer film becomes easily openable seal, the 2 of the easy-open seal (seal line M in the figure) in the vicinity of the free end of the intermediate layer film, preferably provided in pairs inner layer, the superposition of three-layer film of the intermediate layer and the table layer.

In the package having the above-mentioned seal line, when the opening operation is started by picking the free end of the long surface layer film, first, as will be described in detail later, first, the stress of the second easy-open seal is reduced. for centralized, only the seal peeling between tables layer film and the intermediate layer film, the seal between the intermediate layer film and the inner layer film remains intact. When the opening operation is further advanced, the first easy-open seal does not seal the space between the inner layer film and the intermediate layer film .
Due to the force of peeling off the easy-open seal ,
With the easy-open seal as a fulcrum, a pinch margin is formed when the inner film continuous with the lift is peeled from the contents.

[0014] Therefore, while holding the package in a single hand, it can be done opening operation with the other hand, especially if the contents are of food, it is possible to eat without touching the hand directly with the food ( (See FIG. 4) .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the package of the present invention will be described below with reference to the drawings. Figure 1 is an external perspective view showing a first embodiment of the package of the present invention, FIG. 2 is a front view showing an enlarged main portion of the package of FIG. 1, FIG. 3 is for explaining the opening operation of the package Figure 2 of
4, FIG. 4 is an explanatory view for explaining an opening operation of the package, FIG. 5 is an external perspective view showing a second embodiment of the package of the present invention, and FIG. 6 is a package of FIG. Is a perspective view of a secondary package obtained by stacking a large number of in a multi-stage and airtightly wrapping with a packaging film.

Reference numeral 1 in FIG. 1 indicates a package according to the first embodiment, and this package 1 has four surfaces including main surfaces 8a and 8b of flat contents 2 (see FIG. 2). Is covered in a tubular shape by a film-like packaging material 3, and the contents 2 are exposed on side surfaces 7 in the axial direction (length direction) Z of the cylindrical packaging material 3. It is . Both end portions in the width direction of the packaging materials 3 is twofold pieces 4 and 5 are superimposed on the twofold condition is formed, the twofold piece 4, 5 is one that is formed longer than the other, and the contents 2 A base portion approaching the surrounding packaging material body 6 (synonymous with the vicinity of the turning point)
9, the easy-open seal ( the first easy-open seal of the present invention)
Sealing line L) are facilities as. Furthermore, the joint pieces 4 and 5 are folded on the surface of the packaging material main body 6 so that the longer joint piece 4 becomes a surface layer, and are composed of the long and short joint pieces 4 and 5 and the packaging material body 6 formed thereby. At least 3
The film of the layer is provided with an easy-open seal (seal line M as a second easy-open seal according to the present invention) near the free end of the shorter joint piece 5. Note that the superimposition in the jointed state means that the jointed pieces 4 and 5 are overlapped so that the inner surfaces of the packaging material body 6 and the continuous surfaces face each other.

Furthermore, Figure 5 shows a package according to the second embodiment, the difference between this package 40 and the package 1 described above,
In the packaging body 40, the axial direction Z of the cylindrical packaging material 3
The contents 2 are not exposed on the side surfaces 7, 7 of the pillow, and the packaging material 3 is folded into a pillow shape, and the pillow portions 41, 41
Is formed with seal lines 42 serving as easy-open seals. In addition, if the packaging body shows another packaging form which is covered with the packaging material on the side surfaces 7, 7, the packaging material is squeezed at that portion to form a flat portion from which the contents are eliminated, and the flat portion is formed. One obtained by fusing and sealing a packaging material is exemplified.

Examples of the packaging material used in the present invention include a film obtained by biaxially stretching a copolymer of vinylidene chloride and vinyl chloride, a stretched polypropylene film, a polyethylene film and the like. The contents covered by the packaging material of the present invention are not limited to food products such as condensed dairy products such as cheese and butter, ham, sausage, cream, jam, etc. Is not limited to a flat rectangular shape as shown in FIG. 1, but may be a circular shape, an elliptical shape, a rectangular shape, or other shapes.

In the package 1, the cylindrical packaging material 3
Of that the bare contents thereof in side 7.7, often not be said now well as packaged form. Therefore, the such as when not fully protected from outside air packing materials are contents, as shown in FIG. 6, a number of the package in multi-tiered, be secondary packaging in an airtight packaging film preferable. The secondary packaging body 50 is formed by stacking packaging films 51 in a gasoline manner, forming a cylindrical shape with a vertical sealing line 52, and filling the packaging bodies 1... Fold the packaging film 51 in a gusset format on both sides with
The gusset portion 53 is provided with a horizontal sealing line 54.

As described above, the package 1 alone is used for the package 4
Needless to say, it is not enough packaging depending on the contents. Nevertheless, the reason why the packaging body 1 is employed is that it is easy to manufacture and low in cost, and that the pillow portions 41 are not overhanging, so that packing and the like are easy. Then, the role of the packaging material 3 in the package 1 is to prevent the contents from sticking together in the secondary package 50,
Delay the deterioration or deterioration of the contents after opening the
To enable handling without directly touching the contents. Therefore the role of such a packaging material 3, package 1 includes a main surface 8a · 8b of the contents
It is preferable that the surface is covered with the packaging material 3 in a cylindrical shape .

Next, a method of using the package of the present invention will be described with reference to FIGS. Holding the package 1 having the seal lines L and M with one hand (the left hand in the figure), picking the free end of the long joint piece 4 with the other hand (the right hand in the figure), and starting the opening operation (FIG. 4). (A)). First, FIG.
When the right hand is moved upward from the state of (a), the long joint piece 4 bends at an acute angle with the seal line M at the apex, and the opening stress is concentrated on this apex. The seal is peeled off, and the seal between the short joint piece 5 and the packaging material main body 6 remains as it is (FIG. 3A).

When the opening is further advanced to the seal line L,
The short joint piece and the packaging material body 6 are pulled by the small joint piece 4.
However, the sealing line L is not sealed between the layers of the short joint piece 5 and the packaging material main body 6, so that the sealing line L is
The short joint piece 5 is lifted up by the peeling force with the seal line M as a fulcrum (at this time, usually, the short joint piece 5 and the packaging material main body are used).
6 and the loop is formed) , and a margin for peeling the packaging material body 6 which is continuous therefrom from the content is formed (FIGS. 3B and 3C, FIG. 4B). )).

The second stage of the unsealing operation is to change the right hand to the above-mentioned knob margin, move the right hand downward, and peel off the packaging material body 6 from the contents (FIG. 4 ( c)). With such an opening operation, the opening operation can be performed with the other hand while holding the package with one hand, and the food can be eaten sequentially from the top if the contents are food without directly touching the contents.

In order to perform such an opening operation favorably, the length of the long joint piece 4 is determined by the length of its free end and the seal line M.
And make sure that the distance between the
The distance between L and M is sufficient to form the loop.
Distance that the raised loop can be used as a pick margin
Should be set to. Further, the position where the seal line M is formed is set as close as possible to the free end of the short joint piece, and the position where the seal line L is formed is set as close to the turning point as possible. It is preferable to secure to some extent. Further, the position of the superimposed structure of the packaging material including the sealing lines L and M may be set at the center of the package.
It may be biased to either direction as shown in FIG.

Here, the overlapping portion of the film is formed by aligning the envelopes.
48, where an easy-open seal is formed.
For opening a package as described in US Pat.
I will talk about it. In the package of this publication, too,
Grab the surface film with your finger and pull it up to remove the easy-open seal.
When peeled, the inner film may be lifted temporarily.
You. However, it becomes a fulcrum of the lifting state and
The second seal (seal) of the present invention for fixing the raised state
No line M) and no loops are formed
Then, the lifting state returns to the original state immediately, and the inner film
It will adhere to the contents again.

[0027] Easy P which is preferably employed in the present invention.
Sealing means for the heat plate, high frequency or ultrasonic
And the use of the heat welding means
Sealed to selectively peel between layers where sealing stress is concentrated
can do. In addition, between the short joint piece and the packaging material body
The seal strength of the
The selective peelability may be further ensured.

Next, a packaging apparatus for manufacturing the package 1 will be described with reference to the drawings. 7 is a plan view showing an embodiment of the packaging apparatus of the present invention, FIG. 8 is a front view showing a packaging section and a cooling section of the packaging apparatus of FIG. 7, and FIG. 9 is an external view showing the packaging section of FIG. FIG. 10 is a perspective view, FIG. 10 is a cross-sectional view of (a) a first molding member and (b) a second molding member used in the packaging section, and FIG. 11 is a diagram showing a molding state of the packaging material. 1 is a cross-sectional view of a packaging material immediately after a sealing line is formed by the sealing means of FIG.
(B) is a cross-sectional view of the packaging material immediately after the sealing line is formed by the second sealing means.

Reference numeral 10 in FIG. 7 indicates a packaging apparatus according to the present embodiment. The packaging apparatus 10 includes a packaging section 11 for filling the contents 2 while forming the packaging material 3 in a cylindrical shape, and a packaging section. 1
1, a cooling unit 12 for cooling the continuous package 1a continuously fed from the drying unit 1, a drying unit 13 for drying the cooled continuous package 1a, and a continuous package 1a disposed at a subsequent stage of the drying unit.
A cutting section 14 for cutting into a predetermined length ,
Consists of granulated been package from secondary packaging for secondary packaging unit 15., to produce such packaging bodies 1 of FIG. 1, is it a secondary packaging devices.

Hereinafter, the packaging device 10 will be described in more detail. First, as shown in FIGS. 8 and 9, the packaging unit 11 is configured to be substantially vertical, and performs molding of the packaging material 3 and filling of the contents 2 while traveling the packaging material 3 from top to bottom. is there. The long film-shaped wrapping material 3 wound on the raw roll is formed into a tubular shape by the action of the first molding member 16, and both ends of the wrapping material 3 are superimposed on each other in a hand-held state. By the action of the first sealing means 17, the easy-opening seal (sealing) is provided at the base close to the cylindrical packaging material body 6 with respect to the joint pieces 4 and 5 superimposed in this joint state.
Line L) is executed. Subsequently, after the second molded member 18 folds the joint pieces 4 and 5 on which the sealing lines L are formed on the surface of the packaging material main body 6, the second molded member 18 operates by the action of the second molded member 18. Folded palm pieces 4 and 5 and packaging material body 6
An easy-open seal (seal line M) is performed by the second sealing means 19 on the three-layer film composed of the following, and the continuous package 1a is formed.

[0030] Before Symbol first mold member 16, 9 and 1
As shown in FIG. 0 (a), the metal plate has a body 16a formed in a cylindrical shape, and the packaging material 3 is guided and formed along the inclined guide edge of the body 16a. In addition, the first molded member 16 has a pair of abutments, in which both ends of a metal plate constituting the body 16a extend vertically outward from the body 16a, and face each other in parallel with a slight gap. guide pieces 16b · 16 b is formed. The gasket guide pieces 16b and 16c are provided so that both ends of the packaging material 3 are drawn into the gap and overlap with each other, so that the surfaces continuous with the inner surface of the packaging material body 6 face each other. The joined gaskets 4 and 5 are formed (FIG. 10).
(A)). In the present embodiment, the length of both ends of the packaging material drawn between the gaps is adjusted to be different.

On the other hand , as shown in FIGS. 9 and 10 (b), the second forming member 18 is formed in a substantially cylindrical shape by a metal plate material,
It has a body 18c that is substantially the same as the inner diameter of a. Further, the second molding member 18 extends from the body 18 c and folds a piece 18 a that folds one end of the packaging material 3 on the outer surface of the packaging material main body 6 to form a fold, and the other end of the packaging material 3 and a fold. Is folded down along the outer surface of the packaging material body 6, that is, the overlapping piece 18 for folding and folding.
b. Thus , the second molded member 18
Has a function of folding the palm pieces 4 and 5 in the palm state. In this example, the long joint piece 4 is folded so as to be located outside.

The sectional shapes of the first molded member and the second molded member of the present invention are not limited to the circular shape as in this embodiment, but may be rectangular or other shapes. The second molded member may have a configuration in which, for example, rods are arranged in a cylindrical shape, as long as the outer diameter of the packaging material main body is determined and positioning thereof can be performed.

The first sealing means 17 and the second sealing means 19 are provided so as to press the overlapping portion of the film to be sealed. In this embodiment, ultrasonic welding using an anvil and a horn is applied. I have. Seal is performed
The overlapping portion of the film is located at the position L in FIG. 11A in the first sealing means 17 and in FIG.
This is the M position of 1 (b). Other than the ultrasonic welding, other heat welding means such as high-frequency welding using a pair of high-frequency electrodes and heat sealing using a hot plate can be adopted.

[0034] Subsequently, the continuous package 1a which is formed into a tubular shape by the action of forming the form member and the sealing means, in its interior, content flowable heated in this embodiment is increased 2
Is filled through the stuffer nozzle 20 by a predetermined amount by a filling pump 31 provided at the upper part of the packaging unit 11. The filling of the contents may be carried out by using a mechanical means such as a conveyor, and in that case, it is preferable that the packaging unit 11 be configured horizontally.

At the subsequent stage of the packing and filling means, a conveying means for conveying the packing material filled with the contents is arranged.
The feed rollers 21 serving as the conveying means are a pair of rollers that rotate at a constant speed, and are located below the tip of the stuffer nozzle 20, and are a continuous package filled with the contents 2. 9a, and is conveyed downward at a constant speed in FIG. 9 by the power of a roller.

In this embodiment, rolling rollers 22 and a suction conveyor 23 are provided below the feed rollers 21. Rolling rollers 22, 22 are a pair of wide rollers that are disposed to face each other with a predetermined interval corresponding to the thickness of the packaging Sokarada 1, the continuous package 1a the contents 2 are filled with the gap The continuous package 1a is rolled flat by passing through. The rolling rollers 22 are provided with a thickness detector (not shown) for detecting the thickness of the continuous package 1a after rolling, and the filling pump 31 is controlled by the thickness detector. On the other hand, the suction conveyor 23
In this state, the rolled continuous package 1a is guided in a vacuum-adsorbed state to a cooling unit at a subsequent stage while maintaining a flat shape.

The above-mentioned rolling rollers 22 change the cross-sectional shape of the continuous package 1a. Therefore, in order to manufacturing <br/> forming the products of the same cross-sectional shape as the sectional shape of the first and second molding members, the shape changing member such as a rolling roller 22, 22 may even not be used. Further, when manufacturing a package having a rectangular cross section , for example, the rolling roller may be driven by power, and the conveying means of the present invention may be used instead of the feed rollers 21.

In the packaging apparatus of the present invention, a narrow portion where the contents are removed is formed at the subsequent stage of the conveying means by intermittently squeezing the continuous package in the width direction , and the narrow portion is easily opened and sealed. A squeezing and sealing means (not shown) is provided , and the packaging material is folded into a pillow shape on the side surface in the axial direction Z of the cylindrical packaging material, and the pillow portion is easily opened and sealed. A package as shown in FIG. 5 may be manufactured.

Hereinafter , the configuration of the packaging apparatus 10 other than the packaging section will be described. The cooling unit 12 is for continuously cooling while transporting the continuous package 1a filled with the heated contents 2, and is provided with a guide roller 24 disposed in a coolant W such as chiller water. The runway length is set such that the continuous package 1a stays in the coolant W for a predetermined time guided by the guide 24. For this reason, it is preferable to provide the guide rollers 24 in multiple stages. In addition , conveyance of the continuous package 1a
Make sure the sealed surface is outside the guide roller
It is good to be performed .

The drying section 13 is provided with the cooled continuous package 1a.
While transporting it horizontally, blowing hot air on its surface,
It removes water droplets adhering to the surface.

The cutting section 14 for cutting the continuous package 1a to the length of the product is a first cutting means 25 for cutting the continuous package 1a to a predetermined length (for example, an integral multiple of the unit length of the product). Stacking means 26 for stacking a predetermined number of packages 1b thus cut into a magazine using a vacuum suction device such as a suction cup, and cutting the stacked packages 1b into product unit lengths And a second cutting means 27 for performing the cutting operation.

Here, the first cutting means 25 is moved in synchronization with the transport speed of the continuous package 1a, and is moved by a distance D and then returned to the cutting position (driven by an air cylinder or the like). ) 28, and cuts the continuous package 1a according to the transport speed. Then, the stacking unit 26 sucks the cut package 1b and reciprocates in the direction of arrow A in FIG. 7, thereby sequentially stacking the package 1b on the waiting magazine.

Further, the packages 1b stacked in a predetermined number on the magazine are intermittently moved in the length direction together with the magazine. When the magazine is stopped, the packages 1b are collectively moved by the second cutting means 27 having the ultrasonic cutter 29. Cut into product units. The stacking number, for example, bagged and secondary follicles
In the case of packaging, the number is set to the number of bags packed in one bag .

Then, the stepped product cut to the length of the product unit
Package 1 only has by a bucket conveyor 30 is transferred to the secondary packaging unit 15, where it is a secondary package 50 packaged in airtight packaging film as shown in FIG. The secondary packaging unit 15, formed with shaping the wrapping film 51 into a cylindrical shape, a forming tube (not shown) overlapping the both ends in the twofold adjustment, the vertical seal lines 52 to the film superposition portion of the twofold adjustment A first welding device (not shown), a bucket conveyor 30 for filling the formed tubular body with the package 1, and the gusset while folding the packaging film 51 on both sides of the package 1 in a gusset format. And a second welding device (not shown) for forming a horizontal sealing line 54 in the portion 53. Of course, the package 40 shown in FIG. 5, the upper
Instead of packing as described above , pack it as it is
Just do it .

[0045] According to the present invention described above, a package having easy packaging structure opening, the packaging apparatus is provided for reliably producing it continuously. However, the present invention is not limited to the above embodiments, and can be variously modified based on the type of contents and the form of the final product.

[0046]

As described above, according to the package of the present invention, when the packaging material is opened, if the long piece of the palm joint is peeled off, the short piece of the palm joint below is spontaneously lifted, and is continuously connected to it. A margin is formed when peeling the packaging material body from the content. Therefore, the opening operation can be performed with the other hand while holding the package with one hand, and the contents can be eaten sequentially from the top if the contents are food without directly touching the contents.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a first embodiment of a package of the present invention.

FIG. 2 is an enlarged front view showing a main part of the package of FIG. 1;

3 is a front view corresponding to FIG. 2 for illustrating the opening operation of the package.

FIG. 4 is an explanatory diagram for explaining an opening operation of the package.

FIG. 5 is an external perspective view showing a second embodiment of the package of the present invention.

6 is a perspective view of a secondary package obtained by stacking many of the packages of FIG. 1 in multiple stages and airtightly wrapping them with a packaging film.

FIG. 7 is a plan view showing an embodiment of the packaging device of the present invention.

8 is a front view showing a packaging unit and a cooling unit of the packaging device of FIG.

FIG. 9 is an external perspective view showing the packaging part of FIG. 8 in an enlarged manner.

10 is used in the packaging section of the packaging apparatus of FIG. 7 (a)
FIG. 2 is a sectional view of a first molded member, and FIG. 2B is a sectional view of a second molded member.

FIGS. 11A and 11B are diagrams showing a molding state of a packaging material, wherein FIG.
(B) is a cross-sectional view of the packaging material immediately after the sealing line is formed by the second sealing means, and (b) is a cross-sectional view of the packaging material immediately after the sealing line is formed by the sealing means.

[Explanation of symbols]

 1/40; package 2; contents 3; packaging material 4.5; gasket piece 10; packaging device 11; packaging unit 12; 16; first molded member 17; first sealing means 18; second molded member 19; second sealing means 50;

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B65B 9/20 B65D 75/06 B65D 75/60 B65D 85/76

Claims (12)

(57) [Claims] 1. A package body in which the surface of the content is covered with a film-like packaging material in a tubular shape, and both ends of the packaging material are superimposed on each other to form a joint piece,
One of the two pieces is formed longer than the other, and the short and long pieces are provided with a first easy-open seal at the base near the packaging material body surrounding the contents. For the film of at least three layers consisting of a long and short hand palm piece and a packaging material body formed by folding the long and short hand palm pieces on the surface of the packaging material body such that the longer one of the palm pieces becomes a surface layer, A package body characterized in that a second easy-open seal is provided between at least a layer between the shorter joint piece and the packaging material body near a free end of the shorter joint piece. 2. The package according to claim 1, wherein the contents are exposed on an axial side surface of the cylindrical packaging material. 3. The package according to claim 1, wherein the packaging material is folded into a pillow shape on an axial side surface of the cylindrical packaging material, and the pillow portion is provided with an easy-open seal. 4. The package according to claim 1, wherein the package has a flat content, and a surface including a main surface thereof is covered with the packaging material in a tubular shape. 5. A secondary package in which a plurality of the packages of claim 2 are collectively packaged in an airtight manner with a packaging film. 6. A secondary package wherein a plurality of the packages of claim 4 are stacked in multiple stages and airtightly packaged with a packaging film. 7. A first forming member for forming a long film-like packaging material into a cylindrical shape, and overlapping both ends of the packaging material in a palm-split state, and a palm-piece piece superimposed in the palm-split state, First sealing means for easily opening and sealing at a base portion approaching the cylindrical packaging material main body, and a first sealing means provided at a stage subsequent to the first sealing means for folding the joint piece to the surface of the packaging material main body. A second molding member, second sealing means for easily opening and sealing at least three layers of a film formed of a joint piece and a packaging material body formed by being folded by the second molding member; and Filling means for filling the inside of the packaging material body which is easily opened and sealed by the sealing means, conveying means for conveying the packaging material filled with the contents, and a continuous package continuously fed by the conveying means The predetermined length A packaging device comprising cutting means for cutting into pieces. 8. The packaging apparatus according to claim 7, wherein said transport means is a film feed roller. 9. The packaging apparatus according to claim 7, wherein the transporting means is a rolling roller for rolling the packaging material together with the contents filled therein to form a flat shape and transporting the packaging material. 10. The packaging apparatus according to claim 8, wherein a rolling roller for flatly rolling the packaging material together with the contents filled therein is provided at a stage subsequent to the film feed roller. 11. A narrowed portion from which contents are removed by intermittently squeezing a continuous package continuously fed by the transporting means in the width direction between the transporting means and the cutting means, and forming the narrowed portion. The packaging device according to any one of claims 7 to 10, further comprising an ironing device and a sealing means for easily opening and sealing the device. 12. The packaging apparatus according to claim 7, wherein a cooling means for cooling a continuous package continuously fed by the transport means is provided between the transport means and the cutting means. .