JP2005186236A - Sheet cutting tool and sheet storage container using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet cutting tool capable of easily and neatly cutting a thin sheet and provide a storage container capable of being used many times after using the thin sheet wound in a rolled state. <P>SOLUTION: The sheet cutting tool is composed by folding a metal sheet having sawtooth cutting blades formed at the side edge in a chevron state, the only blade edge of single element blades at the chevron state lower end are abutted to the sheet at several places, and an external force is concentrated on the blade edges at several places. While inserting the tip of the sheet wound in the roll-state from the open end of a cylindrical storage container having a long hole in a side face longitudinal direction into the long hole, it is rotatably stored in the storage container, a pressing tool is movably provided in the vertical direction to the long axis of the storage container, a sheet support part is provided at the part of the storage container opposing to the pressing tool, and a non-slip part of the sheet is provided on at least one of either the sheet support part or the pressing tool. The storage container can be used in many times even when the sheet is finished to be used. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a sheet cutting tool and a sheet storage container using the same. More specifically, the present invention provides a sheet cutting tool that can easily and cleanly cut thin flexible sheets such as synthetic resin wrap sheets, aluminum foil, synthetic resin tapes, and adhesive tapes for packaging, and a thin sheet cylinder. There is provided a sheet storage container in which a wound body can be rotatably stored and a sheet wound in a cylindrical shape by using the cutting tool can be easily cut.

  Conventionally, a wrap sheet wound in a cylindrical shape (roll shape) is stored and used in a paper-made rectangular parallelepiped storage container with one open side, and aluminum is provided at the open end of the one side surface of the storage container. A metal sawtooth blade such as a metal blade is disposed. The sheet drawn outward from the open end of the storage container is cut by the serrated blade. At that time, since the serrated blade is linearly arranged on the side edge of the metal plate, the force applied from the outside when cutting the sheet is distributed over the entire serrated blade, which is strong against cutting. Power is required. Therefore, if the sheet is strongly pulled outward, the sheet is slightly twisted, and the force is concentrated and applied to the edge of the sheet, and the sheet is not cut sequentially from one end to the other in the width direction, There is a problem that it cannot be cut well and it takes time to cut sequentially from one end to the other. In addition, pulling the sheet strongly outward and twisting the sheet a little to cut sequentially from one end to the other end, the end of the sheet bounces off and adheres to the other surface of the sheet as soon as it is cut There was a problem that it took time and effort to remove the adhesion, and sometimes it was discarded.

Conventionally, since the wrap sheet has been made of vinyl chloride, it is easy to cut and this material has extensibility, so it has been suitable as a material for wrapping. However, when vinyl chloride is burned, dioxins are generated, which makes the outside air environment very bad. Therefore, polypropylene has recently been used in place of vinyl chloride, but this material is good for the outside air environment, but has a drawback that it is durable and difficult to cut. Therefore, the problem as described above appears more strongly.

In order to solve such a problem, there is a technique in which a serrated blade is provided on the side edge of the metal plate on the same plane and in a protruding shape. For example, in Japanese Patent Publication No. 4-19092, a lid piece is provided at the front end portion of the lid joined to the opening of the rectangular parallelepiped storage case, and a protruding metal cutting member is provided on the back surface of the lid piece. A paper storage case for a wrap sheet is disclosed. In this conventional example, there is a problem that the cut portion of the sheet does not become a straight line due to the degree of force applied to pull the sheet outward.

In the conventional example as described above, when the wrapped wrap sheet is used up, the paper storage container is discarded. Since wrap sheets are used in many homes, the number of storage containers used in the country is enormous. Usually, a large amount of storage containers are burned as dust, which wastes valuable resources. In addition, there arises a problem that the global environment is deteriorated due to combustion of the storage container.
No. 4-19092

As described above, in the conventional example, the serrated blades are arranged in a straight line, so when cutting the lap sheet, pull the sheet strongly outward, and twist the sheet a little and then sequentially from one end to the other. If you do not cut, you can not cut well. Moreover, since it cut | disconnects sequentially from one end to the other end, there exists a problem that time is required for a cutting | disconnection. The present invention provides a sheet cutting tool that can solve all of these problems. Since the sheet can be instantaneously cut with a little force, the problem that the sheet bounces immediately after cutting the sheet is also solved. The purpose of the storage container of the invention is to provide a technique that can be used any number of times by attaching a new sheet wound in a roll shape to the storage container even after the use of the sheet wound in a roll shape is completed. Yes.

  In order to achieve the above object, the sheet cutting tool according to claim 1 is configured such that the first and second substrates made of a hard material such as a metal having a serrated blade formed on the side edge are piled at a predetermined angle. It is arranged in a shape.

Further, the sheet cutting tool according to claim 2 is formed so that the shape of the single element blade constituting the sawtooth blade is reversed between the first substrate and the second sheet cutting tool 2 substrate.

Furthermore, in the sheet cutting tool according to claim 3, the V-shaped shape of the single element blade constituting the serrated blade is orthogonal to the longitudinal axis direction of the first substrate or the second substrate and is V-shaped. The inclination of the lower end side of the mountain shape composed of the first and second substrates with respect to the center line passing through the apex is formed steeper than the top side of the mountain shape.

Furthermore, the sheet cutting tool according to claim 4 is formed by connecting the first and second substrates.

Further, the sheet cutting tool according to claim 5 includes a plurality of chevron shapes made of the first and second substrates.

The sheet storage container according to claim 6 is a cylindrical storage container provided with a long hole in the longitudinal direction of the side surface, a first rotation support portion including a convex portion or a concave portion provided at one end of the storage container, A lid portion that is detachably attached to the open end of the storage container that faces the rotation support portion, and that is provided with a second rotation support portion that is formed of a convex portion or a concave portion, and a portion of the storage container that has the storage container. Provided on a part of the storage container that is provided so as to be movable in the direction perpendicular to the major axis and that is provided along the surface of the storage container when the storage container approaches the surface of the storage container. A flexible sheet support portion and a sheet cutting tool disposed at the tip of the pressing tool, and a sheet wound in a cylindrical shape is inserted into the storage container from the open end of the storage container, and the first It is rotatable by the rotation support part and the second rotation support part provided on the lid part. Is lifting, when the leading edge of the sheet is disposed along the surface of the container is taken out from the long hole of the container, the sheet is cut by being arranged at the distal end of the pusher sheet cutter.

Further, in the sheet storage container according to claim 7, in at least one of the sheet support part or the pressing tool, a sheet non-slip part is provided on at least one of the opposing surfaces of the sheet support part and the pressing tool. It has been.

In addition, in the sheet storage container according to the eighth aspect, a recess for taking out the sheet pressure contact is provided on the upper surface of the sheet support.

Furthermore, in the sheet storage container according to claim 9, the sheet cutting tool is arranged in a mountain shape with the first and second substrates at a predetermined angle.

In the sheet storage container according to claim 10, at least one of the first rotation support portion and the second rotation support portion is provided with an inclined portion so that the diameter of the tip decreases toward the tip. Yes.

Furthermore, the sheet storage container according to claim 11 is provided with an engraved protrusion for preventing reverse rotation of the wound core tube of the sheet on at least a part of the inclined portion of the rotation support portion.

Furthermore, in the sheet storage container according to claim 12, when the sheet cutting tool is brought into contact with the sheet, a step is provided in the storage container in the vicinity of the tip of the serrated blade of the sheet cutting tool.

In the sheet cutting tool of the present invention, the first and second substrates made of a hard material such as a metal having a serrated blade formed on the side edge are arranged in a mountain shape at a predetermined angle, so that the sheet is cut. When doing this, only the cutting edge of the single-element blade at the lower end of the crest is only in contact with the sheet at several locations, so the force applied from the outside to the sawtooth blade for cutting is concentrated on several cutting edges. become. Further, since the sheet is successively brought into contact with the sawtooth blades at the lower end of the mountain shape, the sheet can be easily cut even with a small external force. Therefore, there is no need to twist the sheet as in the prior art.

The sheet storage container of the present invention is rotatable to the storage container while inserting the leading end of the sheet wound in a roll shape from the open end of the cylindrical storage container provided with a long hole in the longitudinal direction of the side surface into the long hole. Because it is stored in the storage container, you can use the storage container as many times as you like.
Further, the pressing tool is provided so as to be movable in a direction perpendicular to the long axis of the storage container, and is provided along the surface of the storage container when approaching the surface of the storage container. A flexible sheet support portion is provided at a part of the sheet support portion, and at least one of the sheet support portion and the pressing tool is configured to prevent the sheet from slipping on at least one of the opposing surfaces of the sheet support portion and the pressing tool. Since the portion is provided, the sheet does not slip when the sheet is cut. Further, when a recess for taking out the sheet pressure contact is provided on the upper surface of the sheet support, it is easy to take out the sheet.
When the roll-shaped sheet is stored in the storage container, at least one of the first rotation support portion and the second rotation support portion is provided with the inclined portion so that the diameter of the tip decreases toward the tip. Easy to store in a storage container. In addition, when an engraved protrusion for preventing reverse rotation of the winding core tube of the sheet is provided on a part of the inclined portion, the sheet does not return to the inside of the storage container. In addition, when the sheet cutting tool is brought into contact with the sheet, if the storage container is provided with a step near the tip of the serrated blade of the sheet cutting tool, the pulling force is efficiently applied to the sheet, so that the sheet is smooth. Can be cut.

Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a sheet cutting tool 1 of the present invention. In the figure, a belt-like plate 2 made of a hard material such as metal or hard synthetic resin is bent to constitute a first substrate A and a second substrate B. The first substrate A and the second substrate B are bent into a mountain shape with a predetermined angle. On the side edges of the first substrate A and the second substrate B, serrated blades 3 and 3 ′ are formed. The V-shaped single element blades a1, a2,..., An of the first substrate A and the single element blades b1, b2,. Although bn may be an isosceles triangle, it is preferable that the slopes of the side d and the side f on the lower end side of the single element blades a1 and b1 are steep as shown in the figure. That is, for example, when considering the single element blade a1, the center line k1 orthogonal to the longitudinal axis m of the first substrate A and passing through the V-shaped apex C1 of the side d on the lower end Q side of the first substrate A. The slope (angle α) is formed steeper than the slope (angle β) of the side e on the peak-shaped top P side. That is, the angle α <angle β is formed. Similarly, when considering the single element blade b1, the inclination of the side f on the lower end R side of the second substrate B with respect to the center line k2 orthogonal to the longitudinal axis n of the second substrate B and passing through the V-shaped apex C2. The (angle γ) is formed steeper than the slope (angle δ) of the side g on the peak P-side of the mountain shape. That is, the angle γ is smaller than the angle δ. Further, it is preferable that the sawtooth blade 3 of the first substrate and the sawtooth blade 3 'of the second substrate have a target waveform with respect to a line k3 orthogonal to the line connecting the lower ends Q and R through the top P.

In this embodiment, the height h of the single element blade is 1.3 mm, the width W of the belt-like plate 2 is 8 mm, the height H of the mountain shape is 4 mm, and the distance L between the mountain-shaped lower ends QR is about 37 mm. is there. Since the household wrap sheet is a medium size and has a width of 220 mm, the width of the cutting tool 1 (the connection of the six chevrons) is set to 222 mm, which is about 2 mm larger than the width of the wrap sheet.

Actually, the cutting tool 1 is formed by connecting six such chevron formed of the first substrate A and the second substrate B. When the cutting tool 1 comes into contact with the sheet 4, first, since the mountain-shaped lower ends (for example, Q and R) come into contact with each other at seven places, the force from the outside is concentrated on these seven places. . That is, a force is applied concentrated on the six sets of single element blades a1 and b1 in contact. Therefore, the sheet 4 is smoothly cut with a small force.

The serrated blades 3 and 3 'are V-shaped single element blades a1, a2, ... an of the first substrate A and single element blades b1, b2, ... bn of the second substrate B. Since the slopes (angle α and angle γ) on the lower end Q and R side of the mountain shape are steeper than the slopes on the peak P side (angle β and angle δ) of the mountain shape, a synthetic resin wrap sheet When the lower end Q and R side of the cutting tool 1 abut on the thin flexible sheet 4 such as aluminum foil, synthetic resin tape, packaging adhesive tape, etc., the single element blades a1, a2,. The single element blades b1, b2,..., Bn of the second substrate b have steep outer inclination angles, so that they are very easy to cut. Note that (5), (5 '), and (5 ") are mounting holes for mounting the cutting tool 1 on a pressing tool described later.

Next, the storage container of the present invention will be described. 2-7, since the sheet | seat 4 is transparent, it has described as transparent drawing.
As shown in FIGS. 2 to 7, the synthetic resin container 6 is formed in a cylindrical or quadrangular tubular body 7 with one end closed, and toward the inside of the cylinder on the closed end side of the cylinder. The 1st rotation support part 8 which consists of a convex part is provided. A slit-like long hole 10 is provided in the longitudinal direction of the side surface so as to communicate with the open end 9 of the cylindrical body 7. The open end 9 of the cylindrical body 7 is covered with a cover part 11. The lid portion 11 is provided with a second rotation support portion 12 made of a convex portion at a position facing the first rotation support portion 8 of the cylindrical body 7. A sheet support portion 13 is provided in a part of the cylindrical body 7 adjacent to the long hole 10. The sheet support portion 13 is connected and supported to the cylindrical body 7 by support details 13a and 13b, and the other portions are separated. In the vicinity of the long hole 10, first engaging portions 14 a and 14 b (not shown) that are rotatably engaged are provided. A pressing tool 15 having a shape approximate to the outer shape of the cylindrical body 7 and covering the sheet support portion 13 is rotatably engaged with the first engagement portions 14a and 14b by the second engagement portions 15a and 15b. At the tip of the pressing tool 15, the cutting tool 1 is mounted. At that time, the mounting protrusions (not shown) of the pressing tool 15 are provided in the mounting holes (5) (5 ') (5 ") of the cutting tool. Insert, heat melt and fix.

In order to store the sheet 4 of the wound body 17 wound around the paper tube 16 in a roll shape in the storage container, the following is performed. That is, as shown in FIG. 2, the sheet of the roll-shaped winding body 17 is stored in the storage container 6 from the open end 9 of the cylindrical body 7, and at this time, the leading end portion of the sheet 4 is inserted into the long hole 10. Then, the sheet is stored in the storage container, and the sheet paper tube 16 is fitted to the first rotation support portion 8 at the closed end of the storage container. Thereafter, the open end of the storage container is covered while the second rotation support portion 12 of the covering portion 11 is fitted to the other end of the paper tube 16 of the sheet. In addition, since both the 1st rotation support part 8 and the 2nd rotation support part 12 are provided with the inclination parts 8a and 12a so that a diameter may become thin as it goes to a front-end | tip, the 1st rotation support part 8 and the 2nd rotation support part are provided. Both parts 12 smoothly enter the inside of the paper tube 16. The inclined portions 8a and 12a are provided with engraved protrusions 12b for preventing reverse rotation so that the sheet roll does not reverse.

Next, the sheet 4 is taken out from the storage container as follows. That is, when the pressing tool 15 is opened from the storage container and the sheet pressure contact extraction hole 18 provided in the sheet supporting portion 13 is pushed by the finger from the top of the sheet with the fingertip, the leading end of the sheet is lifted, so that it is picked. Pull out the desired length. Next, for example, when the sheet is pulled with one hand (left) and the pressing tool 15 is pressed with the right finger, sheet non-slip portions 19a, 19b, 19c made of convex portions are provided on the inner surface of the pressing tool, Seat slip portions 20a, 20b, and 20c each having a recessed hole are provided at the corresponding position of the seat support portion 13, and the seat 4 is firmly held by the both slip portions, so that the seat slips. There is no. Further, the position where the serrated blade of the cutting tool 1 abuts is recessed, and the sheet support portion is supported by the support details 13a and 13b, so that it has elasticity, and the sheet support portion 13 is made of synthetic resin. Since the sheet is elastically deformed when the pressing tool 15 is pressed, the sheet is smoothly cut. Further, since the storage container is provided with the step portion 21 at the blade edge of the serrated blade, the sheet is supported by the step portion in the vicinity of the blade edge, and the sheet is pulled efficiently with a slight pulling force. , Can cut the sheet more smoothly.

It is a perspective view of the principal part which shows the sheet cutting tool of this invention. It is a perspective view of the sheet storage tool of the present invention. It is a section perspective view of the sheet storage implement of the present invention. It is a perspective view of the sheet storage tool of the present invention. It is a perspective view of the sheet storage tool of the present invention. It is a perspective view of the sheet storage tool of the present invention. It is a perspective view of the sheet storage tool of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet cutting tool 2 Strip | belt-shaped board 3, 3 'sawtooth blade 4 Sheet 5 Mounting hole 6 Storage container 7 Cylindrical body 8 1st rotation support part 9 Open end 10 Long hole 11 Cover part 12 Second rotation support part 13 Sheet Support portions 13a, 13b Support details 14a, 14b First engagement portions 15a, 15b Second engagement portion 16 Paper tube 17 Roll-shaped wound body 18 Sheet pressure contact extraction holes 19a, 19b. 19c Non-slip part 20a, 20b, 20c Non-slip part 21 Step A First board B Second board a1, a2, an Single element blade b1, b2, bn Single element blade m Longitudinal axis n Longitudinal axis
k1 center line k2 center line k3 orthogonal line

Claims (12)

A sheet cutting tool in which first and second substrates made of a hard material such as a metal having a serrated blade formed on a side edge are arranged in a mountain shape at a predetermined angle. 2. The sheet cutting tool according to claim 1, wherein the shape of a single element blade constituting the serrated blade is reversed between the first substrate and the second substrate. The V-shaped shape of the single element blade constituting the saw-tooth blade is the first and the second with respect to a center line orthogonal to the longitudinal axis direction of the first substrate or the second substrate and passing through the V-shaped apex. The sheet cutting tool according to claim 2, wherein an inclination on a lower end side of a mountain shape made of two substrates is formed steeper than an upper side of the mountain shape. The sheet cutting tool according to claim 1, wherein the first and second substrates are connected to each other. A sheet cutting tool comprising a plurality of chevron shapes made of first and second substrates. A cylindrical storage container provided with a long hole in the longitudinal direction of the side surface, a first rotation support part comprising a convex part or a concave part provided at one end of the storage container, and opening of the storage container facing the rotation support part A lid portion that is detachably attached to the end and provided with a second rotation support portion formed of a convex portion or a concave portion, and is provided on a part of the storage container so as to be movable in a direction perpendicular to the long axis of the storage container. And a pressing tool provided along the surface of the storage container when approached to the surface of the storage container, and a flexible sheet support provided in a part of the storage container facing the pressing tool, A sheet cutting tool disposed at the tip of the pressing tool, and a sheet wound in a cylindrical shape is inserted into the storage container from an open end of the storage container, and the first rotation support portion and the application The second rotation support portion provided on the lid portion is rotatably supported by the sheet. When the end is arranged along the surface of the container is taken out from the long hole of the receiving container, the sheet container the sheet is cut by a sheet cutter which is arranged at the distal end of the pusher. The sheet storage container according to claim 6, wherein in at least one of the sheet support part or the pressing tool, a sheet non-slip part is provided on at least one of the opposing surfaces of the sheet support part and the pressing tool. The sheet storage container according to claim 6, wherein a concave portion for taking out the sheet pressure contact is provided on the upper surface of the sheet support. The sheet storage container according to claim 6, wherein the sheet cutting tool is a sheet cutting tool in which the first and second substrates are arranged in a mountain shape at a predetermined angle. The sheet storage container according to claim 6, wherein at least one of the first rotation support portion and the second rotation support portion is provided with an inclined portion so that the diameter of the tip becomes narrower toward the tip. The sheet storage container according to claim 10, wherein an engraved protrusion for preventing reverse rotation of the wound core tube of the sheet is provided on at least a part of the inclined portion. The sheet storage container according to claim 6, wherein when the sheet cutting tool is brought into contact with the sheet, a step portion is provided in the storage container in the vicinity of the tip of the serrated blade of the sheet cutting tool.

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