JPH0427777Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention generally relates to packaging containers and cutting tools attached to packaging containers, and more specifically relates to wrapping films and aluminum mainly used for food or drug packaging. The present invention relates to a packaging container for storing rolls of packaging web such as foil or thin paper, and to a cutting tool that can be used by pulling out the packaging web and cutting it into arbitrary lengths, and a packaging container equipped with the cutting tool.

[Conventional technology]

Stores rolls of wrap film, aluminum foil, tissue paper (e.g., glassine or thin paper processed from glassine) for packaging food or medicine, etc., and stores rolls of wrap film, aluminum foil, tissue paper, etc. (hereinafter referred to as wrapping paper) when needed. Packaging containers that can be used by pulling out a desired length of web (referred to as a web) from these rolls are widely known. These packaging containers generally consist of paper boxes equipped with metal cutting tools for cutting these packaging webs to the desired length. FIG. 1 shows examples of these known packaging containers. As shown,
The packaging container 1 is integrated with an open container portion 3 that accommodates a roll 2 of packaging web such as a wrap film or aluminum foil for packaging foods, etc., and is integrated with the open container portion 3. A paper box consisting of a lid part 4 that is rotatable around an axis, and is made of a thin metal plate and has serrated cutting teeth on its longitudinal edge in order to cut the pulled out web in the lateral direction. It has a cutting tool 5 that has been cut.
This cutting tool 5 has cutting teeth that are connected to the open container portion 3.
It is fixed to the bottom surface of the open container part 3 in a state in which it slightly protrudes from the front wall of the container.

[Problem that the invention attempts to solve]

If the metal cutting tool in such a packaging container is incinerated together with the paper box when disposing of it, only the cutting tool part will remain unburned, and if only the cutting tool is removed from the paper box and disposed of before incineration, a considerable amount of waste will be lost. This is time-consuming and has become a problem in incineration, whether in a garbage disposal site or in a general household.

Further, the serrated teeth formed on the metal cutting tool of such a packaging container were dangerous because the teeth were metal teeth that protruded forward from the front wall of the packaging container. For example, when pulling web from a roll of packaging web and cutting off a required length of web, a part of the body, such as a hand, may be accidentally injured by the cutting teeth.

In addition, metal cutting tools may rust, making it extremely unhygienic when webs are used for packaging foods, tableware, and the like.

The present invention was devised in view of these problems, and it is an object of the present invention to provide a cutting tool for cutting packaging webs that can be incinerated, does not rust, can be manufactured at low cost, and is safe without causing injury to the human body. With the goal.

Another object of the present invention is to shorten the manufacturing process by integrally forming the cutting tool in the paper box, thereby providing a web packaging container that is cheaper.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a cutting tool for a packaging web packaging container made of cardboard having a saw blade-like blade, the tooth portion of the cutting tool being α-
To provide a cutting tool characterized by being dipped in cyanoacrylate and hardened by the α-cyanoacrylate.

Preferably, the cutting tool is disposed at the upper edge of the front wall of the open container portion constituting the packaging container. More preferably, a band-shaped plate is provided at the opening of the container portion to separate the end portion of the web from the roll and to prevent the roll from being lifted up.

The invention also includes an open container portion having an opening for accommodating and withdrawing a roll of packaging web, and serrated teeth for transversely cutting said web. In a web packaging container for packaging, forming the tooth portion on the container and immersing it in α-cyanoacrylate;
A packaging container characterized by being cured by the α-cyanoacrylate is provided.

Preferably, a strip plate is provided at the opening of the container portion having an opening to separate the tip end portion of the web from the roll and to prevent the roll from being lifted up. [Function] A cutting tool made of cardboard with serrated teeth, the tooth portion of which is hardened with α-cyanoacrylate, is placed in a packaging container that stores the web in order to cut the web. Used to cut the web laterally as it is pulled out.

It is formed integrally with the web packaging container for packaging, and α・
Cyanoacrylate hardened teeth are also used to draw and cut the web crosswise.

Further, a strip plate disposed at the opening of the container portion having an opening separates the tip end portion of the web from the roll and prevents the roll from being lifted up.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a front view showing a cutting tool 100 according to the present invention, which can be attached to a packaging container for a wrapping film, aluminum foil, tissue paper, etc. for packaging food products. This cutting tool 100 is made of cardboard similar to the cardboard that makes up the packaging container,
It has a length slightly less than the length of the packaging container and a height approximately equal to that of a prior art metal cutting tool. The cutting tool 100 also has serrated teeth 101 stamped into its upper portion. Appropriate intervals and tip angles of the teeth 101 are adopted depending on the type of web.

In order to reinforce the cardboard 101 constituting the teeth 101 of the cutting tool 100, the teeth 101 are placed in a bath of cyanoacrylate adhesive, such as alkyl α-cyanoacrylate, such as ethyl α-cyanoacrylate, as shown in the virtual diagram in FIG. The area above the line 103 is immersed and then air-dried. With this, tooth 1
01 can provide the desired hardness necessary for cutting packaging webs.

FIG. 3 is a perspective view of a web packaging container provided with teeth 101 according to this embodiment, and FIG. 4 is a sectional view thereof. The illustrated packaging container 10 is an open container made of cardboard for accommodating a roll 12 of packaging web, and has a length slightly longer than the length of the roll 12 and a length larger than the outer diameter of the roll 12. An open container part 13 having slightly larger width and height dimensions and a rear wall 1 of this open container part 13
The packaging container 10 has a web 17 attached to the upper edge of the front wall 18 of the open container portion 13 in the transverse direction. The aforementioned teeth 101 for cutting are provided.

Further, a strip plate 10 is provided at the opening of the open container portion 13 to separate the end portion of the web 17 from the roll 12 and to prevent the roll 12 from being lifted up.
3 are arranged. This strip plate 103 is attached to the end walls 20A, 20B of the open container by adhesive, for example.

FIG. 5 is a perspective view showing an embodiment of a packaging container in which serrations for cutting transversely are directly formed on the upper edge web of the open container portion of the packaging container, and FIG. and FIG. 7 are a developed view and a sectional view of the packaging container according to the embodiment.

The illustrated packaging container 10 is an open container made of cardboard for accommodating a roll 12 of a packaging web, and has a length slightly longer than the length of the roll 12 and slightly larger than the outer diameter of the roll 12. It is composed of an open container portion 13 having a large width and height, and a lid portion 14 that is integral with the rear wall 19 of the open container portion 13 and is rotatable using a fold 16 as a hinge. The packaging container 10 has a web 17 attached to the upper edge of the front wall 18 of the open container portion 13.
Teeth 110 are formed for laterally cutting. In the unfolded state shown in FIG. 6, the packaging container is immersed in a bath of alkyl-α-cyanoacrylate, such as ethyl-α-cyanoacrylate, and then air-dried to a sufficient extent to cut the packaging web. It is made hard.

Furthermore, in this embodiment, the open container portion 1
Insert the tip of the web 17 and the roll 1 into the opening of 3.
A strip plate 103 is disposed laterally to separate the rolls 12 from the rolls 12 and to prevent the rolls 12 from being lifted up. This strip plate 103 is attached to the end walls 20A, 20B of the open container by adhesive, for example.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the present invention described in the claims for utility model registration, and these are also included within the scope of the present invention. It goes without saying that there is.

α cyanoacrylate has the formula CH ₂ =C
(CN)COOR is a compound represented by dicyanoacrylate, and R in the formula includes alkyl, alkenyl, cycloalkyl, aryl, alkoxyalkyl groups, etc. Specifically, methyl, ethyl, n-propyl , i-propyl, n-butyl, i-butyl, n-pentyl, cyclohexyl, allyl, benzyl, methoxyethyl, ethoxyethyl and the like. These α-cyanoacrylates are the main components of room temperature curing adhesives commercially available as so-called instant adhesives.

A thickener, stabilizer, curing accelerator, plasticizer, dye, etc. may be added to the α-cyanoacrylate as necessary. In addition, as the α-cyanoacrylate, instead of the ethyl α-cyanoacrylate used in this example, for example, 1-methylheptyl α-cyanoacrylate, i-propyl α-cyanoacrylate, i-butyl α-cyanoacrylate, s- Butyl alpha cyanoacrylate, butyl alpha cyanoacrylate, 2-ethylhexyl alpha cyanoacrylate, 1-ethylpropyl alpha cyanoacrylate, neopentyl alpha cyanoacrylate, 2,2-dimethylbutyl alpha
It is possible to process teeth using any of the alkyl alpha cyanoacrylates, such as cyanoacrylate, cyclohexyl alpha cyanoacrylate, allyl alpha cyanoacrylate.

Furthermore, after the tooth has been immersed in alpha cyanoacrylate, the tooth can be dried by various drying methods to further accelerate the drying of the tooth.

〔effect〕

Since the present invention is configured as described above, it produces the following effects.

According to the cutting tool or the packaging container described in claims (1) and (2), the cutting tool or the packaging container can be disposed of by incineration, can be manufactured at low cost,
It is possible to provide a safe cutting tool for cutting a packaging web that does not rust and has extremely low risk of injury to the human body, or a packaging web packaging container equipped with the cutting tool.

According to the packaging container described in claim (3), in addition to the above advantages, there is no need to manufacture the cutting tool separately, and the packaging web can reduce manufacturing costs and shorten the manufacturing process. We can provide packaging containers.

Moreover, in the cutting tools or packaging containers described in claims (1) to (3), α-cyanoacrylate is used to harden the teeth. Since α-cyanoacrylate hardly forms a film on the surface of the paper, it can ensure the necessary sharpness of the teeth. In addition, alpha-cyanoacrylate penetrates into paper instantly and dries quickly, so it is recommended to immerse the tooth in alpha-cyanoacrylate for a short period of time (for example, a few seconds) and allow it to dry quickly. can be done.
Therefore, since the teeth can be hardened in a short time, the time required for manufacturing cutting tools or packaging containers can be significantly shortened. Moreover, since substantial hardening of the teeth can be achieved by immersing the teeth in α-cyanoacrylate for only a very short time, the cutting tool and packaging container described above are very well adapted to mass production, and their practical effects are Extremely large. In addition, teeth hardened with alpha cyanoacrylate are extremely hygienic because they do not adsorb webs after hardening.

Furthermore, in the packaging container according to claim (4), by disposing the strip plate in the packaging container, lifting of the roll of the web and winding of the leading end of the web around the roll can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway schematic perspective view of a web packaging container for packaging foods, etc. according to the prior art. FIG. 2 is a front view of the cutting tool according to the present invention. FIG. 3 is a schematic perspective view showing an embodiment of a web packaging container for food packaging equipped with a cutting tool according to the present invention. FIG. 4 is a schematic cross-sectional view of the packaging container of FIG. 3. FIG. 5 is a schematic perspective view of a packaging container according to the present invention in which packaging web cutting teeth are integrally formed. FIG. 6 is a developed view of the packaging container shown in FIG.
FIG. 7 is a schematic sectional view of the packaging container. 13...Opening container part, 18...Front wall, 1
00... Cutting tool, 101... Teeth, 102... Cardboard, 108... Strip plate, 110... Teeth.

Claims (1)

[Claims for Utility Model Registration] (1) A cutting tool for packaging web packaging containers made of cardboard having serrated teeth, the cutting tool having teeth portions immersed in α-cyanoacrylate to A cutting tool characterized by being hardened with α-cyanoacrylate. (2) An open container portion having an opening for accommodating a roll of packaging web and from which the web can be drawn out, and comprising a cutting tool having serrated teeth for cutting the web in the transverse direction. 1. A web packaging container for packaging, characterized in that the tooth portion of the cutting tool is immersed in α-cyanoacrylate and cured by the α-cyanoacrylate. (3) A packaging web comprising an open container portion having an opening for accommodating a roll of packaging web and from which the web can be pulled out, and serrations for laterally cutting said web. in a packaging container, forming the tooth portion on the container and immersing it in α-cyanoacrylate;
A packaging container characterized by being cured with the α-cyanoacrylate. (4) The package according to claim 2 or 3, characterized in that a band-shaped plate is disposed in the opening to separate the end portion of the web from the roll and to prevent the roll from being lifted up. container.