JP4620229B2 - Cutting mat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cutting mat that is used as an underlay when a sheet is processed with a cutter and forms a perforation on the sheet.
[0002]
[Prior art]
Conventionally, when various sheets are cut out into a predetermined shape, the sheets are spread and placed on the surface of a cutting mat, and the sheets are cut with a blade of a cutter knife. At that time, a perforation as a cut line or the like is often formed on the sheet. In order to form the perforation on the sheet, an operator has conventionally taken a method of finely moving the cutter edge up and down (conventional method 1), or processing using a rotary knife which is a dedicated tool for perforation processing. (Conventional method 2).
[0003]
[Problems to be solved by the invention]
The above-described conventional method 1 has a problem in terms of machining accuracy such as poor workability, requiring a lot of labor, and variation in the pitch of the formed perforations.
[0004]
The above-described conventional method 2 has a problem in that it is necessary to purchase and prepare an expensive rotary knife, which is a dedicated tool, while the perforation can be processed with high accuracy. In particular, when it is desired to change the pitch of the perforation, it is necessary to purchase and prepare a dedicated tool for that type, which causes a problem in that a great amount of cost is generated.
[0005]
An object of the present invention is to solve such problems of the prior art, and to provide an inexpensive cutting mat that can process perforations with high accuracy and is excellent in workability.
[0006]
[Means for Solving the Problems]
The present invention is a cutting mat for forming a perforation on a sheet used as an underlay when processing the sheet with a cutter, comprising a plate-like mat body, and at least one surface of the mat body has a perforation. Rukoto of have a uneven surface made uneven intervals that corresponds to pitch, with recesses in the uneven surface are arranged in a matrix, spacing of irregularities in the irregular surface is different in the row and column directions It is characterized by.
[0007]
According to this configuration, when the sheet is placed on the cutting mat, and the cutter blade edge is pressed against the surface of the sheet to run, the cutter blade edge corresponds to the unevenness interval due to the unevenness of the cutting mat. Running while repeatedly moving away from the surface or cutting the sheet, the perforation is processed into the sheet with high accuracy. Moreover, in order to process perforations, it is only necessary to place a sheet on a cutting mat and run it while pressing the blade edge of the cutter. Furthermore, since this cutting mat has a simple configuration in which a concavo-convex surface is formed on the surface of a plate-like mat body, it can be manufactured easily and inexpensively.
[0008]
In the cutting mat of the present invention described above, since the configuration of the recesses in the irregular surface are arrayed in a matrix, the cutting edge of the cutter during cutting is along a valley arranged in one direction of the row or column direction Since it is guided linearly, it becomes possible to process the perforation with a high accuracy without using a ruler.
[0009]
Further, in the cutting mat of the present invention described above, since the configuration of the spacing of irregularities in the irregular surface is different in the row and column directions, and placing the sheet on a cutting mat press the cutting edge of the cutter When running by hitting, the spacing of the irregularities on the irregular surface is different in the row direction and the column direction, so that it is formed on the sheet when running the blade edge of the cutter in the row direction and when running in the column direction The perforation pitch can be changed.
[0011]
When the cross-sectional shape of the convex portion on the concave and convex surface is a chevron, when the sheet is placed on the cutting mat and the cutter blade is pressed against the run, the cutter blade is smoothly carried along the chevron. It becomes possible to improve operability.
[0012]
When the uneven surface has a sawtooth cross-sectional configuration, when the sheet is placed on the cutting mat and pressed against the cutter edge, the cutter edge is aligned with the inclined surface of the sawtooth so that the directionality is improved. It can be lifted and transported smoothly, improving operability.
[0013]
If the surface opposite to the uneven surface is a soft layer, the perforated surface can be processed on the uneven surface side, while normal cutting is possible on the soft layer side, and two functions can be achieved with one cutting mat. Play.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings.
[0015]
FIG. 1 is a plan view of the cutting mat 10 of the present invention, and FIG. 2 is a sectional view thereof. As shown in FIG. 3, the cutting mat 10 is used as an underlay when the sheet 1 that is to be cut is processed by the cutter 2, and is used to form the perforations 3 on the sheet 1.
[0016]
The cutting mat 10 comprises a plate-shaped mat body 12 in plan view a substantially rectangular, unevenness (protrusions 11a and the recesses 11b of the spacing P1 that corresponds to the pitch P2 of the perforations 3 on one surface of the mat body 12 The concavo-convex layer 11 is formed. In this example, as shown in FIG. 1, the concave portions 11 b in the concave-convex layer 11 are arranged in a matrix in the row direction M and the column direction N.
[0017]
More specifically, the cutting mat 10 has, for example, a short side dimension of about 150 mm, a long side dimension of about 200 mm, an unevenness depth d1 of about 0.5 mm, and an unevenness interval P2 of about 5 mm pitch. Yes. However, each dimensional value of the illustrated cutting mat 10 is appropriately changed according to the thickness and material of the sheet 1 forming the perforation 3. For example, if the sheet 1 is thin, the unevenness interval P1 is set to a pitch of approximately 1 mm. As the thickness of the sheet 1 increases, the unevenness interval P1 is increased and the unevenness depth d1 is set deeper. In addition, the widths of the convex and concave portions 11 a and the concave portions 11 b are appropriately changed according to the type of the perforation 3.
[0018]
As shown in FIG. 2, the cutting mat 10 has a three-layer structure in which an uneven layer 11 made of a hard elastomer, a hard layer 12 made of a hard elastomer, and a soft layer 13 made of a soft elastomer are laminated in this order. The layers are bonded together using an adhesive. The concavo-convex layer 11 has a hardness that is not easily cut when the cutting edge of the cutter is applied. The hard layer 12 has a hardness that allows the other side to bend naturally by gripping one side of the cutting mat 10. The soft layer 13 is softer than the hard layer 12 and has a softness that can be easily cut by the cutting edge of a cutter. Note that the cutting mat 10 is not limited to being formed of an elastomer, and may be formed of plastomer or a combination thereof.
[0019]
As shown in FIG. 4, when the sheet 1 is placed on the uneven surface of the cutting mat 10, and the blade 2 of the cutter 2 is pressed against the surface of the sheet 1 and run, the cutter 2 is cut by the unevenness of the cutting mat 10. The blade edge 2a runs away from the surface of the sheet 1 and cuts the sheet 1 corresponding to the unevenness interval P1, and the perforation 3 is processed into the sheet 1 with high accuracy. Here, the cutter 2 indicated by a solid line represents a state in which the blade edge 2a is separated from the sheet 1, and the cutter 2 indicated by a two-dot chain line represents a state in which the blade edge 2a cuts the sheet 1.
[0020]
Thus, in order to process the perforation 3, all that is required is to place the sheet 1 on the cutting mat 10 and press the blade 2a of the cutter 2 to run, which is excellent in workability. The cutting mat 10 has a simple configuration in which the uneven layer 11 is simply formed on the surface of the plate-like mat body 12, and therefore can be manufactured easily and inexpensively.
[0021]
Further, as shown in FIG. 1, since the concave portions 11b in the concave-convex layer 11 are arranged in a matrix, the cutting edge 2a of the cutter 2 is cut along a valley lined in one direction in the row direction M or the column direction N at the time of cutting. Since it is guided linearly, the perforation 3 can be accurately processed in a straight line without using a ruler.
[0022]
In addition, when the sheet 1 is placed on the soft mat 13 side of the cutting mat 10 and the cutting edge 2a of the cutter 2 is pressed against the surface of the sheet 1, the cutting edge 2a of the cutter 2 penetrates the sheet 1. The soft layer 13 is cut and the sheet 1 is reliably cut by moving the cutter 2 in this state, so that normal cutting can be performed.
[0023]
As mentioned above, it cannot be overemphasized that the cutting mat of this invention is not limited to the specific structure of above-described embodiment, It is good also as a structure which changed suitably, added or deleted the structure as needed.
[0024]
For example, as in the cutting mat 10B shown in FIG. 5, if the cross-sectional shape of the convex portion in the concave-convex layer 11 is a mountain shape 11c, the sheet 1 is placed on the cutting mat 10B and the cutting edge 2a of the cutter 2 is pushed. When running by hitting, the cutting edge 2a of the cutter 2 can be smoothly carried along the chevron 11c, and the operability is improved. In addition, as in the case of the cutting mat 10C shown in FIG. 6, substantially the same effect can be obtained even if the cross-sectional shape of the convex portion in the concave-convex layer 11 is a trapezoid 11d.
[0025]
Further, when the concave-convex layer 11 has a sawtooth shape 11e as in the cutting mat 10D shown in FIG. 7, the sheet 1 is placed on the cutting mat 10D and the cutting edge 2a of the cutter 2 is pressed against it. When running, the cutting edge 2a of the cutter 2 can be smoothly transported along the inclined surface of the saw tooth 11e with directivity, and the operability is improved.
[0026]
Further, as in the cutting mat 10E shown in FIG. 8, when the unevenness interval in the uneven layer 11 is different in the row direction M and the column direction N, the sheet 1 is placed on the cutting mat 10E and the cutter is cut. When the two cutting edges 2a are pressed against each other and run in the row direction M and the column direction N, the unevenness in the uneven layer 11 is different, so that the cutting edge 2a of the cutter 2 runs in the row direction M and the row direction. The pitch P2 of the perforations 3 formed on the sheet 1 can be changed when running to N.
[0027]
Moreover, if the height of the convex part 11a in the said uneven | corrugated layer 11 differs in the row direction M and the column direction N, at the time of a cutting | disconnection, the blade edge 2a of the cutter 2 is linearly along the direction which raised the convex part 11a. Since it is guided reliably, the perforation 3 can be processed into a straight line with high accuracy without using a ruler.
[0028]
Further, when the unevenness layer 11 has a plurality of unevennesses and the interval between the unevennesses in each row is set to be different, the sheet 1 is placed on the cutting mat 10 and the cutting edge 2a of the cutter 2 is provided. Since the interval of the unevenness of each row is different when pressing and moving in the row direction, the position of the perforation 3 formed on the sheet 1 can be changed by changing the position of the row where the blade edge 2a of the cutter 2 is run. The pitch P2 can be changed.
[0029]
In the above description, the cutting mat 10 has a three-layer structure in which the uneven layer 11, the hard layer 12, and the soft layer 13 are laminated in this order. However, the present invention is not limited to this. Instead, a two-layer structure of a hard layer and a soft layer having irregularities may be used.
[0030]
【The invention's effect】
As described above, according to the cutting mat of the present invention, since an uneven surface made uneven intervals that correspond to the pitch of perforations on at least one surface of a plate-shaped mat body, a sheet on cutting mat If the cutter blade is applied to the surface of the sheet and run at a predetermined load and speed, the cutting blade will move away from the surface of the sheet in accordance with the unevenness of the cutting mat. Since it runs while repeating the operation of cutting in, the perforation can be processed into the sheet with high accuracy.
[0031]
Moreover, in order to process perforations, it is only necessary to place a sheet on a cutting mat and run it against the cutting edge of the cutter, which is excellent in workability.
[0032]
Furthermore, the cutting mat has a simple configuration in which an uneven surface is formed on the surface of the plate-shaped mat body, and therefore can be manufactured easily and inexpensively.
[0033]
When the concaves on the concave and convex surfaces of the cutting mat are arranged in a matrix, the cutting edge of the cutter is guided linearly along valleys aligned in one direction in the row direction or column direction when cutting, so use a ruler Even without it, the perforation can be processed in a straight line with high accuracy.
[0034]
When the unevenness interval on the uneven surface is different in the row direction and the column direction, when the sheet is placed on the cutting mat and the cutter edge is applied, the uneven surface in the row direction and the column direction is Since the unevenness intervals are different, the pitch of the perforations formed on the sheet can be changed depending on whether the blade edge of the cutter is run in the row direction or the row direction.
[0035]
If the height of the convex portion on the uneven surface is different in the row direction and the column direction, the cutter edge is guided more reliably along the direction in which the convex portion is raised at the time of cutting. Even if not used, the perforation can be processed in a straight line with high accuracy.
[0036]
When the cross-sectional shape of the convex portion on the concave and convex surface is a chevron, when the sheet is placed on the cutting mat and the cutter tip is applied to run, the cutter tip is smoothly carried along the chevron. And operability is improved.
[0037]
When the cross-sectional shape of the uneven surface is a sawtooth shape, when the sheet is placed on the cutting mat and the cutter blade edge is applied to run, the blade edge of the cutter is set along the inclined surface of the sawtooth so as to have a directivity. Can be transported smoothly, improving operability.
[0038]
When the surface opposite to the uneven surface is a soft layer, the perforated surface side can be processed, while the soft layer side can be normally cut, and one cutting mat can perform two functions. Can do.
[Brief description of the drawings]
FIG. 1 is a plan view showing a configuration example of a cutting mat according to the present invention.
FIG. 2 is a cross-sectional view illustrating a configuration example of a cutting mat according to the present invention.
FIG. 3 is a perspective view showing a usage state of the cutting mat of the present invention.
FIG. 4 is a sectional view showing a usage state of the cutting mat of the present invention.
FIG. 5 is a cross-sectional view showing another configuration example of the cutting mat of the present invention.
FIG. 6 is a cross-sectional view showing another configuration example of the cutting mat of the present invention.
FIG. 7 is a cross-sectional view showing another configuration example of the cutting mat of the present invention.
FIG. 8 is a plan view showing another configuration example of the cutting mat of the present invention.
[Explanation of symbols]
1 Sheet 2 Cutter 3 Perforation 10, 10B, 10C, 10D, 10E Cutting mat 11 Uneven surface (uneven surface)
11c Yamagata 11e Sawtooth 12 Mat body M Row direction N Column direction P1 Concavity pitch P2 Perforation pitch

Claims (4)

A cutting mat for forming a perforation on the sheet used as an underlay when processing the sheet with a cutter,
Comprising a plate-shaped mat body, it has a corrugated surface composed of irregularities interval that corresponds to the pitch of perforations on at least one side of the mat body,
Cutting mats recesses in the uneven surface with being arranged in a matrix, spacing of irregularities in the irregular surface is characterized that you have different in the row and column directions. The cutting mat according to claim 1, wherein a cross-sectional shape of the convex portion on the concave and convex surface is a mountain shape. The cutting mat according to claim 1, wherein a cross-sectional shape of the uneven surface is a sawtooth shape. The cutting mat according to any one of claims 1 to 3, wherein a surface opposite to the uneven surface is a soft layer.

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