JPH03244490A - Paper made sealed vessel opening cutter - Google Patents

Abstract

PURPOSE:To enable the opening of an optional place of a vessel and facilitate the opening by forming a cutter of a holder having a recessed guide surface having a V-shaped cross section which is laid over a ridge part to be cut, and a cutting edge provided on the V-shaped bottom formed by the guide surface. CONSTITUTION:A cutter 30 is formed of a rectangular parallelopiped plastic holder 31 and a steel cutting edge 32 held thereby. The holder 31 has a rectangular parallelopiped block form having two pairs of parallel two surfaces, in one of which a V-channel 33 is formed, and both side surfaces of the V-channel 33 form guide surfaces 34. The cutting edge 32 is formed in a flat plate having a triangular edge 35 on one end thereof, and it is buried and fixed in the state where the edge 35 is protruded on the V-shaped bottom formed by the guide surfaces 34 in a position closer to one end part of the holder 31. When the guide surfaces of the holder are laid over a ridge part to be cut, the cutting edge is guided to touch the ridge part due to thrust into the ridge part as it is, and when the holder is pulled, the ridge part is cut by the cutting edge.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a cutter used to open sealed paper containers filled with liquids such as juice, pastes such as tofu, and other solid materials.

2. Description of the Related Art Conventionally, scissors 61 have been used for the above-mentioned purposes, as shown in FIG.
is used. How to open the container with scissors 61
The ears 63 that had been fixed to the side surfaces of the scissors 2 are raised up, and the ears θ3 are first cut and removed using the scissors 61, and one blade of the scissors 61 is inserted through one of the openings made in the cut portion. The widthwise central portion of the top wall 64 of the container was traversed longitudinally.

Problems to be Solved by the Invention As mentioned above, when opening the package using scissors, there is a problem in that the opening location is limited to the top wall, making it difficult to remove the contents from the opening location. In particular, in a vertically rectangular parallelepiped container as shown in the figure, the top wall is narrower than the side walls, so it is inconvenient that only the top wall can be opened.

An object of the present invention is to provide a cutter that can open any part of a container and is easy to open.

Means for Solving the Problems A cutter for opening a sealed paper container according to the present invention is a cutter for opening a sealed paper container filled with contents by cutting the ridgeline portion thereof, and the cutter is a cutter for opening a sealed paper container filled with contents. It consists of a holder provided with a concave guide surface with a V-shaped cross section that spans over a section, and a cutting blade provided at the bottom of the V shape formed by the guide surface.

In this specification, paper shall also include composite materials mainly made of paper.

The cutter for opening sealed paper containers according to the present invention includes a holder provided with a concave guide surface having a V-shaped cross section extending over the ridgeline to be cut, and a concave guide surface provided at the bottom of the V-shape formed by the guide surface. When the guide surface of the holder is placed over the ridge line to be cut, the cutting blade hits the ridge line, and the cutting blade is inserted into the ridge line and the holder is removed. When pulled, the cutting blade cuts the ridgeline.

Example An embodiment of this invention will now be described with reference to the drawings.

The container 10 includes a vertically rectangular parallelepiped container body 11, and two upper triangular ears 12 and two lower triangular ears 13 provided at the upper and lower ends of the container body 11, respectively. is shown lying on its side. As shown in FIG. 8, the container 1o is filled with tofu B. In the state shown in FIG. 7, the container main body 11 has a front side wall 21 facing upward, a rear side wall 22 facing downward, a left wall 23 facing left, a right wall 24 facing right, a top wall 25 facing this direction, and a bottom wall 26 facing this direction. Become. The upper triangular ears 12 are connected to two ridgeline portions formed by the left and right side walls 23.24 and the top wall 25, and are overlapped and fixed to the left and right side walls 23.24. The lower triangular ear 13 is connected to the left and right side walls 23° 24 and the bottom wall 2.
6 and the bottom wall 26.
It is superimposed on and fixed there.

The method for forming the container 1O is well known, and its explanation will be kept brief. However, the longitudinal edge of a composite web made up of a polyethylene layer (not shown), paper scraps, an aluminum foil layer, and a polyethylene layer in sequence from one side. Forming a tube by overlapping and sealing the parts, and after filling the tube with contents, sealing the tube transversely for each length equivalent to one container, and sealing the center part in the width direction of the sealed part. Cutting to form a columnar intermediate container with both ends having a V-shaped cross section, shaping both ends of the intermediate container flat while forming triangular ears at each end, and folding the upper and lower triangular ears as described above. The finished container is made by bending and fixing. The upper transverse seal part 27 and the lower transverse seal part 28 produced when the tube was sealed transversely extend in the left and right directions on the top wall 25 and the bottom wall 26, respectively, and have triangular ends. It has reached the peak of ear 12.13. The vertical seal portion 29 created when the longitudinal edges of the webs are overlapped and sealed extends vertically in the center of the rear side wall 22 in the left-right direction and has both ends reaching the upper and lower horizontal seal portions 27 and 28. top wall 25 and bottom wall 2
6 Extending above.

As shown in FIGS. 1 to 3, the cutter 30 consists of a rectangular parallelepiped plastic holder 31 and a steel cutting blade 32 held by the holder 31. The holder 31 is in the shape of a rectangular parallelepiped block having two pairs of parallel faces, and a V-groove 33 is formed on the negative face thereof, and both sides of the V-groove 33 serve as guide surfaces 34 . The cutting blade 32 is a flat plate having a triangular cutting edge 35 at one end, and is embedded in a state where the cutting edge 35 protrudes from the bottom of the V-shape formed by the guide surface 34 near one end of the holder 31. is fixed.

FIG. 4 shows a modification of the cutting blade. The cutting edge 37 of the cutting blade 36 according to this modification is semicircular, and this cutting edge is safer.

Other embodiments of the cutter are shown in FIGS. 5 and 6. The cutter 40 according to this embodiment also includes a holder 41 and a cutting blade 42. The holder 41 is made of plastic and has a Y-shaped thick plate shape, and includes a V-shaped holder main body 43 and an inverted T-shaped knob 44 . A V-shaped opposing surface of the holder body 43 serves as a guide surface 45 . The cutting edge 42 has a width equal to the thickness of the holder 41.

In the above, the holder 31.41 and the cutting blade 32.42 are made of different materials, but they may be made integrally of plastic or metal.

It is convenient to attach the cutters 30, 40 to the container 10. How to attach it to the above two types of cutters 30.40
Among them, the former cutter 30 shown in FIGS. 1 to 3 will be explained as an example. As shown in FIGS. 9 and 10, the cutter 30 is placed in a plastic bag 51, which is attached to the bottom of the container 10 by adhesive or heat sealing.

Furthermore, instead of pasting the cutter-containing bag 51 onto the container 10, the cutter-containing bag and the container may be shrink-wrapped.

11 to 13, a cutter 30 is placed in a flat paper box 52 having the same outline as the container IO when viewed from above, and is fixed to the bottom of the container 10 with tape 53. paper box 5
If a stopper 54 is provided in the paper box 2, as shown in FIG. 12, or a spacer 55 is provided as shown in FIG. 13, the cutter 30 can be firmly held in the paper box 52.

When opening, as shown in FIG. 7, when the guide surface 34 of the holder 31 is placed across the ridgeline at one end of the ridgeline to be cut of the container 10, the cutting blade 32 is brought into contact with the ridgeline, and then If the holder 31 is pulled toward the other end of the ridgeline as shown by the arrow in the figure, the ridgeline will be cut. As shown in FIG. 8, if two ridgeline parts formed by the front side wall 21 and left and right side walls 23 and 24 and one ridgeline part formed by the front side wall 21 and the bottom wall 26 are cut, the container after cutting is If 10 is turned upside down, tofu B can be taken out from container 10, but furthermore,
By cutting the two ridge lines formed by the left and right side walls 23, 24 and the bottom wall 26, tofu B can be removed from the container 10 by sliding on the cut bottom wall 26 without turning the container 10 upside down. taken out.

Effects of the Invention According to the present invention, when the guide surface of the holder is placed over the ridgeline to be cut, the cutting blade is brought into contact with the ridgeline, so the cutting blade can be stuck into the ridgeline and the holder can be pulled. Since the edge line is cut by the blade, the edge line of the container can be cut anywhere, and the edge line can be cut easily and accurately.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a cutter according to the invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 4 is a sectional view corresponding to FIG. 2 showing a modified example of the cutting blade, FIG. 5 is a perspective view of the cutter showing another embodiment, and FIG. 6 is a cross-sectional view of the cutter shown in FIG.
-■ line shows a sectional view, Fig. 7 is an explanatory diagram of the opening operation, Fig. 8 is a perspective view of the container after opening, Fig. 9 is a perspective view showing how to attach the cutter to the container, and Fig. 10 is a perspective view showing how to attach the cutter to the container. 9 is a sectional view taken along the line X-X, FIG. 11 is a perspective view showing another way of installing the cutter, FIG. 12 is a sectional view taken along the xn-xn line in FIG. FIG. 12 is a cross-sectional view showing yet another method of attaching the cutter, and FIG. 14 is an explanatory view showing a conventional method of opening a container. IO... Container, 31.41... Holder, 32.42
... Cutting blade, 34, 45 ... Guide surface, B ... Contents. -zb Figure 8 Procedural amendment May 18, 1990 Display of the case 1990 Patent Application No. 42799 2, Name of the invention Relationship with the person who makes amendments to the cutter for opening sealed containers

Claims (1)

[Claims] A cutter for opening a paper sealed container 10 filled with content B by cutting the ridgeline, the cutter having a V-shaped concave cross section spanning the ridgeline to be cut. The holders 31 and 41 are provided with guide surfaces 34 and 45, and the cutting blade 3 is provided at the bottom of the V shape formed by the guide surfaces 34 and 45.
A cutter for opening sealed paper containers consisting of 2 and 42.