JP4510204B2 - Lid material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lid used for a container in which contents such as food are stored, and more specifically, an opening having an appropriate size for easily taking out from and taking into a container is easily formed. It is related with the lid | cover material which can do.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a large number of containers in a form in which contents such as food are stored in various shapes of container bodies and sealed with a lid have been on the market. Specifically, for example, foods such as pudding, jelly, or sake or coffee are stored in a synthetic resin or paper molded container body and sealed with a lid. It can be cited as a representative case. As these sealing means, the molded container body and the lid material are sealed by heat bonding, and until the time of eating or drinking, there is no occurrence of leakage or contamination of foreign matter, and the contents deteriorate. It is kept safe from waking up.
[0003]
In general, such container food is configured such that all the lid material is peeled off and the contents are eaten all at once. When a part is eaten and the rest is left for a while, for example, For those who eat and drink, they must carefully peel off part of the lid without removing all the lid, and then cover it again with the lid to prevent dust and other contamination. Was quite a hassle. In addition, container foods that are assumed to be partly eaten and leave the rest for a while are separated from the lid material, for example, with a synthetic resin cap provided in the container in advance. If you leave it for a while, this cap is fitted to prevent dust from entering, but the cap cost is necessary, and if you eat and drink all at once, this cap is useless. There was a problem of becoming.
[0004]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an inexpensive lid material that assumes a case where a part is eaten and the rest is left for a while.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the inventor of the present invention is characterized in that a lid member having two knob protrusions formed adjacent to a peripheral edge is provided between the two knob protrusions. Opening means for providing an opening extending in the peripheral direction other than the peripheral edge provided with the two knob protrusions starting from the bottom of the trough formed in the base is provided at least excluding the innermost layer of the lid member. The opening stopping means is located inside the container from the inner edge of the sealing portion when the opening means is used as a container, and closes the substantially extension line in the vicinity of the end line of the opening extending from the end point of the opening means. Is provided excluding at least the innermost layer of the lid member.
[0006]
According to a second aspect of the present invention, in the lid member provided with the knob protrusion formed on the peripheral edge, the knob member includes the knob protrusion, starting from one skirt of the knob protrusion. An opening means for providing an opening extending in the peripheral direction other than the peripheral edge is provided except for at least the innermost layer of the lid material from the surface layer side of the lid material, and the sealing portion when the end point of the opening means is a container An opening stopping means is at least the innermost layer of the lid material from the surface layer side of the lid material so as to be inside the container from the inner edge and to block the substantially extended line in the vicinity of the end point of the substantially extended line from the end point of the opening means. It is provided except for.
[0007]
By setting it as the structure in any one of Claim 1, 2, the content can be reliably hold | maintained in a sealed state first. Furthermore, by picking one of the picking protrusions with fingers or the like and scooping it up, the lid material is cut along the opening means to the opening stop means and the sealing portion is peeled off to form a predetermined opening. The The lifted lid material is cut off by the opening stop means, so it is not peeled off the container, is held in the container, and can cover the opening again to prevent dust and other contamination can do. Further, if necessary, the container can be fully opened by picking up the other picking protrusion with a finger or the like and rolling it up.
[0008]
The invention according to claim 3 is characterized in that, in the lid material according to any one of claims 1 and 2, the opening stopping means is in the vicinity of the inner edge of the sealing portion when a container is used. . By configuring in this way, the raised lid material hangs down to the outside of the container under its own weight, so that the opening can be ensured without holding the raised lid material with fingers or the like.
[0009]
According to a fourth aspect of the present invention, in the lid member according to the first aspect, the outer bottom edge of the sealing portion when the bottom portion of the valley portion formed between the two knob projecting pieces serves as a container is provided. It is characterized by being.
[0010]
Further, the invention according to claim 5 is characterized in that, in the lid material according to claim 2, the bottom part of the knob projecting piece is outside the outer edge of the sealing part when used as a container. .
[0011]
By setting it as the structure in any one of Claim 4, 5, it can open reliably from the starting point of an opening means.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Specific embodiments of the present invention will be described in more detail below with reference to the drawings.
FIG. 1 is a schematic perspective view showing an embodiment of a food container using the lid according to the present invention, FIG. 2 is an explanatory view showing a use state of the food container of FIG. 1, and FIG. 3 is a diagram of the lid according to the present invention. FIG. 4 is a plan view showing the first embodiment, FIG. 4 is an enlarged plan view of the main part showing a second embodiment of the lid according to the present invention, 1, 1 ', 11, 111 in the figure are lid materials, Opening means, 3 is an opening stop means, 4 is a part to be sealed, 21, 22, 23, 31 are cutting blades, 50 is a food container, 51 is a container body, 52 is a flange part, 53 is a picking piece, 54, 54 ′ is a trough, 55 and 55 ′ are bottoms, A is a start point, B is an end point, C is an opening, D is an introduction part, and E is a guide part.
[0013]
FIG. 1 is a schematic perspective view showing an embodiment of a food container using a lid according to the present invention. A food container 50 is a container body 51 having a substantially inverted trapezoidal cross section having a circular opening on one side. And a lid member 1 having substantially the same outer shape as the opening of the container body 51, and a flange portion 52 provided on the opening edge of the container body 51 and the lid member 1 are sealed (not shown). ) And is heat-bonded so that it can be peeled off. The lid member 1 is formed with two knob projecting pieces 53 and 53 which project from the one peripheral edge and project outward, and are formed between the two knob projecting pieces 53 and 53. An opening means 2 is provided except for the innermost layer of the lid member 1 at the bottom portion 55 of the valley portion 54, starting from the starting point A and extending in the peripheral direction opposite to the peripheral portion where the two knob projecting pieces 53, 53 are formed. The end point B of the opening means 2 is formed so as to be located inside the container from the inner edge (not shown) of the sealing portion (not shown), and the substantially extended line from the end point B of the opening means 2 In the vicinity of the end point B, the unsealing stop means 3 is provided except at least the innermost layer of the lid member 1 so as to block the substantially extended line. With this configuration, the contents are securely held in the food container 50 in a sealed state.
[0014]
FIG. 2 is an explanatory view showing the state of use of the food container shown in FIG. 1. First, one knob protrusion 53 formed on the lid 1 of the food container 50 shown in FIG. By picking up the mami protrusion 53) with a finger or the like and scooping it up, the lid 1 'is cut from the starting point A of the opening means 2 to the opening stopping means 3 along the opening means 2 and a sealing portion (not shown). ) Is peeled off to form a predetermined opening C as shown in FIG. 2, and the lifted lid member 1 ′ is cut off from the food container 50 because the cutting stop means 3 stops cutting. And the opening C is reliably secured by being held in a state of hanging from the container due to its own weight. Thereafter, when a desired amount of the contents (not shown) is eaten and consumed and the remaining contents (not shown) are left for a while, the opening C is again brought into the state shown in FIG. Since it can cover, dust and the like can be prevented from being mixed.
[0015]
FIG. 3 is a plan view showing a first embodiment of a lid member according to the present invention. As described in FIG. 1, the lid member 11 is adjacent to one of its two peripheral edges and protrudes outwardly. Picking protrusions 53 and 53 are formed, and the vicinity of the bottom 55 of the substantially V-shaped valley 54 formed between the two picking protrusions 53 and 53 is set as a starting point A, and the two picking protrusions are formed. An opening means 2 extending in the peripheral direction opposite to the periphery where the pieces 53 are formed is provided excluding at least the innermost layer of the cover material 11 from the surface layer side of the cover material 11, and the end point B of the opening means 2 is The unsealing stop means 3 is formed so as to be located inside the container from the inner edge of the sealing portion 4, and so as to block the substantially extended line near the end point B of the substantially extended line from the end point B of the unsealing means 2 Is provided from the surface layer side of the lid member 11 except at least the innermost layer of the lid member 11. The unsealing means 2 comprises an introduction part D and a guide part E, and the introduction part D starts from the vicinity of the bottom part 55 of the substantially V-shaped valley part 54 and has two strips 21 across the planned sealing part 4. The guide portion E is formed by a substantially C-shaped cutting blade 23 regularly arranged in a single row, and the two cutting blades 21 and 21 of the introduction portion D have an extension line as described above. The cutting edge 22 of the substantially C-shape is formed so as to fit within the wide end portion and intersect with the wide end portion. Further, each of the substantially C-shaped cutting blades 22 of the guide portion E has the substantially C-shaped extension line adjacent to the extension line of the head (the right end portion of the substantially C-shaped cutting blade 22 in FIG. 3). The U-shaped cutting edge 22 (substantially C-shaped cutting edge 22 positioned on the right side in FIG. 3) is formed so as to be accommodated in the divergent part and intersect with the divergent part. And it comprises a semicircular cutting edge 31 with the unsealing means 2 side inside so as to block the substantially extending line from the end point B of the unsealing means 2 to the vicinity of the end point B of the substantially extending line of the unsealing means 2 An opening stop means 3 is provided.
[0016]
The lid 11 configured as described above is formed by cutting the two protruding protrusions 53, 53 with one finger or the like and scooping it up, thereby first cutting the two strips of the introduction part D. Either one of the blades 21 and 21 is cut, and this cutting exceeds the planned sealing portion 4, reaches the first substantially C-shaped cutting blade 22 of the guide portion E, and is continuously adjacent to the substantially Propagation from the next to the next to the letter-shaped cutting edge 22, and finally the propagation of cutting is stopped by the unsealing stop means 3 comprising the semicircular cutting edge 31, so that an opening C as shown in FIG. It is formed. The end point B of the opening means 2 and the opening stop means 3 formed in the vicinity of the end point are preferably provided in the vicinity of the planned sealing portion 4 as much as possible. The reason for this is that, as shown in FIG. 2, the lid 1 'raised up to provide the opening C is held in a state of hanging from the container 50 under its own weight, and the opening C is reliably secured. It is.
[0017]
FIG. 4 is an enlarged plan view of an essential part showing a second embodiment of the lid member according to the present invention, and the lid member 111 is formed by the substantially V-shaped valley portion 54 of the first embodiment shown in FIG. The bottom 55 is the same as that of the first embodiment except that the bottom 55 is composed of a bottom 55 ′ of a substantially inverted trapezoidal valley 54 ′, and the description thereof is omitted, but the bottom 55 of the substantially inverted trapezoidal valley 54 ′ is thus omitted. In order to make the bottom portion wider than the bottom portion 55 of the substantially V-shaped valley portion 54 of the first embodiment, a margin is given to the registration accuracy between the bottom portion and the opening means 2. Can improve productivity.
[0018]
Next, the container body 51 of the food container 50 using the lid according to the present invention will be described. Examples of the container body 51 include well-known ones used for storing contents such as various foods. For example, polystyrene paper, high impact polystyrene sheet, polypropylene sheet, polyamide and polyethylene or polypropylene A laminate sheet, a laminate sheet of polyethylene and polypropylene, etc., molded by a well-known vacuum forming method or pressure forming method, and a container by injection molding resin such as polypropylene, polystyrene, polyester, etc. Alternatively, various injection molding resins can be injection molded in multiple layers, such as those with oxygen gas barrier properties, or foamed styrene containers, paper containers, or double containers made of these. is there. The container body 51 as exemplified above can be appropriately selected and used in consideration of the contents, storage method, storage period, usage method, and the like.
[0019]
Next, the lid member according to the present invention will be described. Materials used for the lid include paper, synthetic paper, various metal foils, various synthetic resins or those made into sheets, or the above sheets into aluminum, aluminum oxide, silicon oxide, indium oxide, oxide Although what vapor-deposited inorganic substances, such as tin and a zirconium oxide, or what apply | coated polyvinylidene chloride to what was formed into the said sheet | seat etc. can be used, these things can be used in combination suitably. Usually, from the viewpoint of protecting contents such as food, the lid material and the container body 51 are sealed by thermal bonding, and the lid material is easily placed in the container when eating and drinking the contents such as food. The main body 51 is configured so that it can be peeled off. For this purpose, a heat-adhesive resin layer that is easily adhesive to the container body 51 is formed in the innermost layer of the lid. As the heat-adhesive resin layer having easy adhesion, it is necessary to select and use appropriately depending on the material constituting the container body 51. For example, polyethylene, polypropylene, ethylene-propylene copolymer, Ethylene-vinyl acetate copolymer, chlorinated polyethylene, chlorinated polypropylene, ionomer resin, vinyl chloride-vinyl acetate copolymer, acrylic acid resin, methacrylic acid resin, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer Examples thereof include simple substances or composites such as a polymer, an ethylene-acrylic acid ester copolymer, an ethylene-methacrylic acid ester copolymer, and a polyester resin.
[0020]
【Example】
Next, the present invention will be described in more detail with reference to examples.
Example 1
Using a gravure plate (plate depth: 40μm) on one side of a double-sided coated paper with a basis weight of 79.1g / m ² , perform white solid printing with white ink using titanium oxide, and a pattern on the white solid print Printing was done. Thereafter, a gravure plate (plate depth: 35 μm) is used on the other surface of the double-sided coated paper, and black solid printing is performed with black ink using carbon black, and a gravure plate (plate depth: plate depth: 40 μm), and white solid printing was printed twice with white ink using titanium oxide. Thereafter, a urethane-based anchor coating agent was applied to the entire surface of the white solid printed surface that was printed twice, and the anchor coating agent-coated surface was extruded with 20 μm of low-density polyethylene using a T-die extruder, and an intermediate laminate was obtained. 3 and the semi-circular shape as the opening stop means, and the two strips of cutting blades as the opening means shown in FIG. Then, a 25 μm-thick ethylene-acrylic acid copolymer was extruded and applied to the low-density polyethylene-coated surface with a T-die extruder to form a final laminate having a heat-adhesive resin layer. . This final laminate was cut into the shape shown in FIG. 4 to obtain a lid material of the present invention.
[0021]
Example 2
A printed sheet is printed with a pattern printed on the corona discharge treated surface of a biaxially stretched nylon film that has been subjected to a 15 μm single-sided corona discharge treatment, and the printed surface of the printed sheet and a separately prepared 15 μm single-sided corona discharge treatment are performed. A non-corona discharge treated surface of the applied biaxially stretched nylon film is laminated by a known dry lamination method to produce an intermediate laminate, and the corona discharge treated surface of the biaxially stretched nylon film of the intermediate laminate and one side of 50 μm A corona discharge-treated sheet [manufactured by Tosero: CMPS-013C] and a corona discharge-treated surface were laminated by a known dry lamination method to produce a final laminate. As the opening means shown in FIG. 3 from the biaxially stretched nylon film side with this perforated machine, the final laminated body has two strips of cutting blades, substantially C-shaped cutting blades arranged in a single row, and as an opening stopping means. A semi-circular cutting blade is formed so as not to penetrate the sheet having the above-mentioned adhesive properties (manufactured by Tosero: CMPS-013C), and then die-cut into the shape shown in FIG. It was.
[0022]
First, a foamed polystyrene container body containing seasoned fried noodles with the lid material of Example 1 prepared above was thermally bonded to prepare a container containing noodles for use in the test. The container with noodles was rolled up with fingers as described in FIG. It can be cut smoothly along the opening means formed on the lid material, the cutting is stopped by the opening stop means, an opening is formed, and the raised lid material is held in a state where it hangs down on the container due to its own weight. Thus, the opening was ensured. And after pouring a required quantity of hot water from the said opening part, the cover material which raised is covered on the opening part, and was left to stand for several minutes. The above-mentioned raised cover material placed over the opening could obtain a sufficient steaming effect without the opening being remarkably opened by steam.
[0023]
Next, a jelly-containing container was prepared by thermally bonding the polypropylene injection-molded container containing the jelly with the lid material of Example 2 prepared above. The container with the jelly was rolled up with fingers as described in FIG. It can be cut smoothly along the opening means formed on the lid material, the cutting is stopped by the opening stop means, an opening is formed, and the raised lid material is held in a state where it hangs down on the container due to its own weight. Thus, the opening was ensured. After eating a portion of the jelly, the lid was covered with a raised lid so that it could be left (preserved) for a while, but the opening could be covered sufficiently to prevent the contamination of dust for a while. A sufficient effect was obtained.
[0024]
【The invention's effect】
As described above, the present invention is advantageous in that it is possible to provide an inexpensive lid that assumes a case where a part of the food is eaten and the rest is left for a while. Moreover, the lid | cover material of this invention has the outstanding effect that it can adapt also to the usage which was demonstrated by the usage method of the lid | cover material of Example 1. FIG.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an embodiment of a food container using a lid according to the present invention.
FIG. 2 is an explanatory view showing a use state of the food container of FIG.
FIG. 3 is a plan view showing a first embodiment of a lid member according to the present invention.
FIG. 4 is an enlarged plan view of a main part showing a second embodiment of a lid member according to the present invention.
[Explanation of symbols]
1, 1 ', 11, 111 Lid 2 Unsealing means 3 Unsealing stop means 4 Sealing scheduled part
21, 22, 23, 31 Cutting blade
50 food containers
51 Container body
52 Flange
53 Picking protrusion
54, 54 'Tanibe
55,55 'bottom A start point B end point C opening D introduction part E guidance part

Claims (6)

A lid for a food container which is thermally bonded to an opening flange portion of a container main body having a single room for containing food inside, and is sealed at a portion to be sealed along the flange portion to seal the container main body. ,
The food container lid is provided with only protrusion knob two formed adjacent to the periphery, the vicinity of the bottom of the valley formed between the two knob projecting piece a starting point, the two An opening means for providing an opening extending in the peripheral direction other than the peripheral edge provided with the two knob protrusions is provided except at least the innermost layer of the lid material from the surface layer side of the lid material,
Wherein with the end point of the opening means is in a container inside the inner edge of the sealing portion to be substantially an extension the substantially the lid member is opened stopping means to block the extension line to the end point near from the end point of the opening means A food container lid material , provided from the surface layer side of the food container except at least the innermost layer of the lid material. A lid for a food container which is thermally bonded to an opening flange portion of a container main body having a single room for containing food inside, and is sealed at a portion to be sealed along the flange portion to seal the container main body. ,
The food container lid is provided with only protrusion picked formed on the periphery, the knob and start the one skirt either seen projecting pieces, the periphery other than the peripheral edge with only protrusion said knob An opening means for providing an opening extending in the direction is provided except at least the innermost layer of the lid material from the surface layer side of the lid material,
The end of the opening means is located inside the container from the inner edge of the scheduled sealing portion , and the opening stopping means is the lid member so as to block the substantially extended line in the vicinity of the end point of the extended line from the end point of the opening means. A food container lid material , provided from the surface layer side of the food container except at least the innermost layer of the lid material. The unsealing means comprises an introduction part and a guide part,
  The introduction part is formed by two strips of cutting blades that start from the vicinity of the bottom of the valley part or the skirt part and straddle the planned sealing part, and the guide part is a substantially C-shaped cutting blade arranged in a row. Formed,
  The two cutting blades of the introduction part are formed so that an extension line of the two cutting blades fits in a divergent part of the substantially U-shaped cutting blade and intersects the divergent part, and the substantially U-shaped part of the guide part. 2. The cutting blade having a shape is formed such that an extension line of a head thereof is accommodated in a divergent portion of the adjacent substantially C-shaped cutting blade and intersects with the divergent portion. Or the lid | cover material for food containers of 2. The food container lid according to claim 1, wherein the bottom of the valley formed between the two knob protrusions is located outside the outer edge of the sealing portion . The food container lid according to claim 2, wherein the bottom portion of the knob projecting piece is located outside an outer edge of the sealing scheduled portion .   The unsealing means has the end point in the vicinity of the inner edge of the planned sealing portion across the food container lid,
  The lid for food containers according to any one of claims 1 to 5, wherein the unsealing stop means is located in a region between the end point of the unsealing means and the inner edge of the planned sealing portion. Wood.

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