Auxiliary tool and method for cutting sheet-shaped floor finishing material using the same

Abstract

To provide an auxiliary tool and a cutting method capable of cutting a sheet-like floor finishing material into a shape matched with an end of an adjacent floor finishing material.SOLUTION: An auxiliary tool has a flat plate part 2 having a first surface and a second surface opposite to the first surface, a linear through hole 3 penetrating the first surface and the second surface of the flat plate part 2, and a first projection part 4 projecting from the second surface in the vertical direction. A spacer member 11 having the same thickness and made of the same material as an adjacent floor finishing material 10 is stuck to a spacer member sticking surface 5 of the second surface, and the auxiliary tool is arranged so that the first projection part 4 abuts on the side surface of the adjacent floor finishing material 10, and by performing cutting work while moving the auxiliary tool along the end of the adjacent floor finishing material 10, a sheet-like floor finishing material 9 can be cut into a shape matching with the end of the adjacent floor finishing material 10.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an auxiliary tool used for cutting a sheet-type floor finishing material, and a method for cutting a sheet-type floor finishing material using the auxiliary tool. [Background technology]

[0002] In floor finishing work, floor finishing materials are laid on the floor surface, which is the base. When laying multiple sheet-like floor finishing materials side by side on the base, in order to make the joints, which are the joints between the floor finishing materials, uniform gaps, the end of one floor finishing material is cut into a shape that matches the end of the other floor finishing material as a reference (in the present invention, one floor finishing material whose end is cut is referred to as the "sheet-like floor finishing material," and the other floor finishing material that serves as the reference for cutting is referred to as the "adjacent floor finishing material").

[0003] Conventionally, when cutting a sheet-like floor finishing material to match the shape of the end of an adjacent floor finishing material, a method called drop-in or overlap drop-out is used. In this method, as shown in FIG. 5, the end of the sheet-like floor finishing material 9 is placed on the end of the adjacent floor finishing material 10 in an overlapping state, and a marking needle is used to make a scratch on the sheet-like floor finishing material 9 to match the shape of the end of the adjacent floor finishing material 10. Then, using the scratch 12 made by the marking needle as a marker, the sheet-like floor finishing material 9 is cut with a cutting tool such as a cutter blade or scissors. Patent Document 1 also proposes a cutting tool and a cutting method for cutting the sheet-like floor finishing material while aligning a guide part along the side of the adjacent floor finishing material.

[0004] However, in the conventional cutting method, there is a risk that an inexperienced worker may accidentally damage or cut adjacent floor finishing materials, and the accuracy of the cutting process depends on the skill of the worker. In addition, even when using a cutting tool such as that in Patent Document 1, it is necessary to appropriately adjust the position of the blade and the marking needle. For this reason, cutting sheet-like floor finishing materials at construction sites requires the skill of the worker. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-60128 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide an auxiliary tool that can cut and process sheet-like floor finishing material into a shape that matches the edge of an adjacent floor finishing material without requiring the skilled worker, and a method for cutting sheet-like floor finishing material using this auxiliary tool. [Means for solving the problem]

[0007] (1) The auxiliary tool of the present invention is an auxiliary tool used for cutting sheet-like floor finishing material, and has a flat plate portion having a first surface and a second surface opposite to the first surface, a linear through hole penetrating the first surface and the second surface of the flat plate portion, and a first protrusion protruding vertically from the second surface, wherein the first protrusion is provided along one linear end of the through hole, and the other linear end side of the through hole on the second surface is a surface for attaching a spacer member.

[0008] (2) The auxiliary tool of (1) is characterized in that it has a second protrusion protruding vertically from the second surface, and the second protrusion is arranged opposite the first protrusion along the other linear end of the through hole.

[0009] (3) In (1) or (2), the present invention is characterized in that it has a third protrusion protruding vertically from the first surface, and the third protrusion is provided along one or the other linear end of the through hole.

[0010] (4) The cutting method for sheet-like floor finishing material of the present invention is a method for cutting a sheet-like floor finishing material to match the shape of the end of an adjacent floor finishing material using the auxiliary tool described in (1), characterized by comprising the steps of: preparing a spacer member of the same thickness and material as the adjacent floor finishing material; attaching the spacer member to the spacer member attachment surface; overlapping the end of the adjacent floor finishing material on top of the end of the sheet-like floor finishing material; positioning the auxiliary tool so that the spacer member faces the sheet-like floor finishing material and the first protrusion abuts against the side of the adjacent floor finishing material; and moving the auxiliary tool along the end of the adjacent floor finishing material. Effect of the Invention

[0011] According to the present invention, it is possible to provide an auxiliary tool that can cut and process a sheet-like floor finishing material into a shape that matches the edge of an adjacent floor finishing material without requiring the skilled worker, and a method for cutting a sheet-like floor finishing material using this auxiliary tool. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a diagram showing an auxiliary tool according to the first embodiment. [Diagram 2] FIG. 2 is a diagram showing an auxiliary tool according to the first embodiment. [Diagram 3] 1A and 1B are cross-sectional views of a second embodiment and a third embodiment. [Figure 4] 11A and 11B are diagrams illustrating a cutting operation using an auxiliary tool. [Diagram 5] 1A to 1C are diagrams illustrating a conventional cutting method. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The following describes in detail the embodiments of the present invention, but these are presented for illustrative purposes and are not intended to limit the present invention.

[0014] A first embodiment of the auxiliary tool of the present invention is shown in Figures 1 and 2. Figure 1(a) is a perspective view of the auxiliary tool 1, and Figure 1(b) is a cross-sectional view taken along line AA of the auxiliary tool 1. Also, Figure 2(a) is a view of the auxiliary tool 1 as seen from a first surface, and Figure 2(b) is a view of the auxiliary tool 1 as seen from a second surface.

[0015] The auxiliary tool 1 has a flat plate portion 2 having a first surface and a second surface opposing the first surface, a linear through hole 3 penetrating the first surface and the second surface of the flat plate portion 2, and a first protrusion 4 protruding vertically from the second surface. As shown in Figures 1(b) and 2(b), the first protrusion 4 is provided along one linear end of the through hole 3. The region of the second surface on the other linear end side of the through hole 3 where the first protrusion 4 is not provided serves as a spacer member attachment surface 5.

[0016] The flat plate portion 2 and the first protruding portion 4 of the auxiliary tool 1 are formed of metal or hard plastic that cannot be easily cut by the blade of a cutting tool such as a cutter blade. The thickness of the flat plate portion 2 is preferably 0.5 mm or more and 10 mm or less, and the length and width of the flat plate portion 2 are preferably 50 mm or more. The linear through hole 3 is a hole for inserting the blade of a cutting tool, a marking needle, etc. to perform work. The width of the through hole 3 is wide enough to insert the cutter blade, the marking needle, etc. The length of the through hole 3 is not particularly limited.

[0017] The first protrusion 4 abuts against the side of the adjacent floor finishing material 10 to guide the auxiliary tool 1 along the shape of the end of the adjacent floor finishing material 10. By abutting the first protrusion 4 against the side of the adjacent floor finishing material 10, the position of the through hole 3 can always be determined at a position that is away from the end of the adjacent floor finishing material 10 by the width of the first protrusion 4. The protruding height of the first protrusion 4 is not particularly limited as long as it is smaller than the thickness of the adjacent floor finishing material 10, but it is preferably 0.5 mm or more to improve workability.

[0018] In order to stabilize the auxiliary tool 1 of the present invention, a spacer member 11 is attached to the spacer member attachment surface 5 when used. The spacer member 11 is preferably of the same thickness and made of the same material as the adjacent floor finishing material 10. For example, a scrap of the adjacent floor finishing material 10 can be used as such a spacer member 11.

[0019] 3(a) is a diagram showing a cross-sectional view of the auxiliary tool 1 of the second embodiment. The second embodiment differs from the first embodiment in that it includes a second protruding portion 6 that protrudes vertically from the second surface of the flat plate portion 2. The second protruding portion 6 is provided along the other linear end portion of the through hole 3 so as to face the first protruding portion 4, and the through hole 3 is disposed between the first protruding portion 4 and the second protruding portion 6.

[0020] The second protrusion 6 serves as a guide when attaching the spacer member 11 to the spacer member attachment surface 5, and if the spacer member 11 is attached so as to butt against the second protrusion 6, the spacer member 11 will not block the through-hole 3. The protruding height of the second protrusion 6 is not particularly limited as long as it is smaller than the thickness of the adjacent floor finishing material 10, but it is preferably about the same height as the first protrusion 4 and 0.5 mm or more.

[0021] A third embodiment of the auxiliary tool 1 is shown in FIG. 3(b). The third embodiment is different from the second embodiment in that a third protrusion 7 protruding vertically is provided on the first surface of the flat plate portion 2. The third protrusion 7 serves as a guide when inserting a cutter blade or a marking needle into the through hole 3. In FIG. 3(b), the third protrusion 7 is provided so as to overlap the second protrusion 6 along the other linear end of the through hole 3, but the third protrusion 7 may be provided so as to overlap the first protrusion 4 along one linear end of the through hole 3. Two third protrusions 7 may be provided so as to face each other on both sides of the through hole 3. In this case, it is preferable to provide a difference of 1 mm or more between the protruding heights of the opposing third protrusions 7. In FIG. 3(b), the first protrusion 4 and the second protrusion 6 are provided on the second surface of the flat plate portion 2, but the third protrusion 7 may be provided without providing the second protrusion 6. In this case, the auxiliary tool 1 has a structure in which a third protrusion 7 is provided to the first embodiment.

[0022] Next, a method for cutting the sheet-like floor finishing material 9 using the auxiliary tool 1 of the present invention will be described.

[0023] First, prepare a spacer member 11 of the same thickness and material as the adjacent floor finishing material 10. For example, the spacer member 11 may be prepared by cutting a piece of scrap material of the adjacent floor finishing material 10 to an appropriate size. Next, attach the prepared spacer member 11 to the spacer member attachment surface 5, which is the second surface. Although double-sided adhesive tape or an adhesive material can be used to attach the spacer member 11, it is preferable to use a material that allows the spacer member 11 to be easily peeled off after the cutting operation of the sheet-like floor finishing material 9 is completed.

[0024] 4(a) and (b) show cutting operations using the auxiliary tool 1 of the first embodiment shown in Fig. 1 and 2. First, as shown in Fig. 4(a), an end of an adjacent floor finishing material 10 is placed on an end of a sheet-like floor finishing material 9. Then, the auxiliary tool 1 with the spacer member 11 attached is positioned so that the spacer member 11 faces the sheet-like floor finishing material 9 to be cut and the first protruding portion 4 abuts against the side surface of the adjacent floor finishing material 10.

[0025] Figure 4(b) shows a cross section of the auxiliary tool 1 positioned in this manner. As shown in Figure 4(b), a step is created when the sheet-like floor finishing material 9 overlaps with the adjacent floor finishing material 10, but because the spacer member 11 is attached, the flat plate portion 2 of the auxiliary tool 1 is positioned parallel to the sheet-like floor finishing material 9. Because the flat plate portion 2 is supported by the adjacent floor finishing material 10 and the spacer member 11, the auxiliary tool 1 is stable and cutting work can be performed accurately and efficiently.

[0026] Next, a cutter blade 8 is inserted through the through hole 3 to cut the sheet-like floor finishing material 9. While cutting, the auxiliary tool 1 is moved so that the first protrusion 4 abuts against the side of the adjacent floor finishing material 10, and the auxiliary tool 1 moves along the edge of the adjacent floor finishing material 10. By working in this manner, the sheet-like floor finishing material 9 can be cut into a shape that matches the edge of the adjacent floor finishing material 10.

[0027] The surface and sides of the adjacent floor finishing material 10 are covered and protected by the flat plate portion 2 and the first protruding portion 4, respectively, so there is no risk of damaging or cutting the floor finishing material 10 by mistakenly operating the cutter blade 8. The auxiliary tool 1 can also be used to mark the sheet-like floor finishing material 9 with a marking needle. In this case, a marking needle is inserted through the through hole 3 instead of the cutter blade 8, a mark is made in the sheet-like floor finishing material 9, and after removing the auxiliary tool 1, the sheet-like floor finishing material 9 can be cut with scissors, a cutter blade, or the like.

[0028] As an example, the auxiliary tool 1 of the first embodiment was made of zinc steel plate, and cutting processing of the sheet-like floor finishing material 9 was performed. As Example 1, an auxiliary tool 1 was made in which a through hole 3 of 0.55 mm width and 80 mm length was provided at a position 30 mm from the end parallel to the long side of a flat plate portion 2 of 100 mm x 80 mm x 1 mm, and a first protrusion 4 of 1.4 mm height and 0.3 mm width was provided parallel to the through hole 3. In addition, as Example 2, an auxiliary tool 1 having a protrusion 4 of 1.4 mm height and 0.4 mm width parallel to the through hole 3 of the flat plate portion 2 of Example 1 was made.

[0029] The prepared auxiliary tool 1 was used to cut the sheet-like floor finishing material 9. The sheet-like floor finishing material 9 and the adjacent floor finishing material 10 were laid side by side on the floor surface as the base, and the joint performance was examined. A polymer-based floor finishing material (Mediwell, manufactured by Tajima Roofing Co., Ltd.) with a thickness of 2.0 mm was prepared as the floor finishing material 10 adjacent to the sheet-like floor finishing material 9.

[0030] First, a polymer-based floor finishing material of 100 mm x 50 mm was cut as a spacer member 11 and attached to the spacer member attachment surface 5 of the auxiliary tool 1 of Example 1. Next, a sheet-like floor finishing material 9 with a width of 1.8 m and a length of 3 m and an adjacent floor finishing material 10 were arranged side by side so as to overlap in an area of ​​2 cm width and 3 m length, and the sheet-like floor finishing material 9 was cut with the cutter blade 8 while moving the auxiliary tool 1 along the edge of the adjacent floor finishing material 10. Then, the cut sheet-like floor finishing material 9 and the adjacent floor finishing material 10 were laid side by side on the floor surface as the base to form a joint. In addition, the sheet-like floor finishing material 9 was cut and processed in the same manner as in Example 1 using the auxiliary tool 1 of Example 2 to form a joint.

[0031] As a measure of the quality of the joints, we investigated the variation in the gaps between the joints. As a result, regardless of whether auxiliary tool 1 of Example 1 or 2 was used, the variation in the gaps was within 0.1 mm, and joints with uniform gaps could be formed.

[0032] As described above, by using the auxiliary tool of the present invention, even an unskilled worker can easily and accurately cut sheet-type floor finishing materials, and can finish joints with uniform gaps. Note that the present invention is not limited to the above-mentioned embodiment, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims. [Explanation of symbols]

[0033] 1 Auxiliary tools 2 Flat plate part 3 Through holes 4 First protrusion 5 Spacer member attachment surface 6 Second protrusion 7 Third protrusion 8 Cutter blade 9. Sheet-type floor covering materials 10 Adjacent floor finishes 11 Spacer member 12 Scratches caused by marking needles

Claims

1. An auxiliary tool used for cutting sheet-like floor finishing materials, a flat plate portion having a first surface and a second surface opposite to the first surface; a linear through hole penetrating the first surface and the second surface of the flat plate portion; a first protrusion protruding perpendicularly from the second surface; The first protrusion is provided along one linear end of the through hole, The auxiliary tool is characterized in that the other linear end side of the through hole of the second surface is a surface for attaching a spacer member.

2. a second protrusion protruding perpendicularly from the second surface; 2. The auxiliary tool according to claim 1, wherein the second protrusion is provided along the other linear end of the through hole so as to face the first protrusion.

3. a third protrusion protruding perpendicularly from the first surface; 3. The auxiliary tool according to claim 1, wherein the third protrusion is provided along one or the other linear end of the through hole.

4. A method for cutting a sheet-like floor finishing material to match the shape of an end of an adjacent floor finishing material using the auxiliary tool according to claim 1, providing a spacer member having the same thickness and material as the adjacent floor covering; attaching the spacer member to the spacer member attachment surface; overlapping an edge of the adjacent sheet floor covering over an edge of the adjacent sheet floor covering; positioning the auxiliary tool so that the spacer member faces the sheet-like floor finishing material and the first protrusion abuts against a side surface of an adjacent floor finishing material; and moving the auxiliary tool along the edges of the adjacent floor covering materials.

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