Cutting Tools

Abstract

To provide a cutting tool which can easily cut a plate-like heat insulation material and shorten cutting time.SOLUTION: A cutting tool 2 is used for forming a recess in a plate-like heat insulation material. The cutting tool includes: at least a linear or plate-like cutting member 4 which cuts the plate-like heat insulation material; a first support member 6 which is a plate-like member having prescribed width and length, supports one end of the cutting member 4 at one end in a longitudinal direction, and has first blade sections 12a, 12b, and 12c for cutting the plate-like heat insulation material in at least one edge section and at a tip of the one end in the longitudinal direction; a second support member 8 which has second blade sections 14a, 14c for cutting the plate-like heat insulation material; and a connection member 10 which connects the other end of the first support member 6 in the longitudinal direction to the other end of the second support member 8 in the longitudinal direction, in a state that a surface of the first support member 6 and a surface of the second support member 8 are faced and separated from each other by a prescribed distance.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cutting tool for forming recesses in plate-shaped thermal insulation materials. [Background technology]

[0002] In buildings such as houses, insulation material is installed between the exterior and interior walls. In the plate insulation material fitted between the main pillar and the partition, it is necessary to provide a recess (notch) for accommodating an outlet box, etc. This recess is formed by cutting and milling the plate insulation material with a cutter or spatula (see, for example, FIG. 10 and paragraph number

[0045] of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication 2013-129992 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, a surface material such as a nonwoven fabric is laminated on the surface of the plate-shaped insulation material. When forming a recess in the plate-shaped insulation material, it is of course necessary to cut this surface material as well, but cutting the surface material is not as easy as cutting the plate-shaped insulation material. Therefore, first the surface material is cut with a cutter, and then the plate-shaped insulation material is cut with a spatula, which takes time and effort.

[0005] In addition, to avoid a reduction in the insulating effect, there must be no gap between the outlet box and the recess, so the recess must be cut to a precise size, requiring precise work.

[0006] An object of the present invention is to provide a cutting tool that can easily cut plate-shaped insulation material and reduce the cutting time. [Means for solving the problem]

[0007] The cutting tool of the present invention is a cutting tool for forming recesses in plate-shaped insulation material, comprising at least one linear or plate-shaped cutting member for cutting the plate-shaped insulation material, and a plate-shaped member having a predetermined width and length, one end of the cutting member being supported by one end in the longitudinal direction, and at least one of the longitudinal edges and the Longitudinal A first support member having a first blade portion at the tip of one end for cutting the plate-shaped insulation material, and a plate-shaped member having a predetermined width and length, wherein one end in the longitudinal direction supports the other end of the cutting member and at least one of the longitudinal edges and the Longitudinal A second support member having a second blade portion at a tip of one end portion for cutting the plate-shaped insulation material, and a connecting member for connecting the other end portion in the longitudinal direction of the first support member and the other end portion in the longitudinal direction of the second support member in a state in which the surface of the first support member and the surface of the second support member are opposed to each other at a predetermined distance. The first blade portion and the second blade portion provided on at least one of the longitudinal edges are located closer to the connecting member than the cutting member. do.

[0008] In the cutting tool of the present invention, the first support member and the second support member include a detachable portion that detachably supports the cutting member.

[0009] The cutting tool of the present invention further includes a depth adjustment portion that adjusts the depth of the recess cut by the cutting member.

[0010] The connecting member of the cutting tool of the present invention has an attachment portion for attaching a handle. The cutting member of the cutting tool of the present invention is a stainless steel wire, a piano wire, a brass wire, or a resin wire. The cutting member of the cutting tool of the present invention has a diameter of 2.0 mm to 0.3 mm.

[0011] In addition, the plate-shaped insulating material of the cutting tool of the present invention has a face material laminated on a front surface or on the front surface and back surface, and the cutting member, the first blade portion and the second blade portion further cut the face material. The face material is at least one of synthetic fiber nonwoven fabric, glass fiber nonwoven fabric, glass fiber mixed paper, Kent paper, kraft paper, and metal film. Effect of the Invention

[0012] According to the present invention, a cutting tool can be provided that can easily cut plate-shaped insulation material and reduce the cutting time. [Brief description of the drawings]

[0013] [Figure 1] 1 is a diagram showing a configuration of a cutting tool according to an embodiment; [Diagram 2] 13A and 13B are diagrams showing a configuration of a cutting tool according to another embodiment. [Diagram 3] 13A and 13B are diagrams showing a configuration of a cutting tool according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, a cutting tool according to an embodiment will be described with reference to the drawings. Fig. 1 shows the configuration of a cutting tool according to an embodiment, with Fig. 1(A) being a plan view, Fig. 1(B) being a front view, and Fig. 1(C) being a right side view. The cutting tool 2 according to this embodiment is a tool for forming a recess (cutout portion) for accommodating an outlet box or the like in a plate-shaped insulation material installed between the outer wall and the inner wall of a building such as a house, and includes a cutting member 4, a first support member 6, a second support member 8, and a connection member 10 as shown in Fig. 1.

[0015] The cutting member 4 cuts the face material laminated on the surface of the plate-shaped insulation material, and further cuts and cuts the plate-shaped insulation material. The cutting member 4 is a stainless steel wire with a diameter of 0.4 mm, and is a linear member supported in a state of being stretched in the left-right direction of the paper surface of FIG. 1(B) by the first supporting member 6 and the second supporting member 8. In this embodiment, the cutting member 4 made of stainless steel wire is taken as an example, but the stainless steel wire may be replaced by other metal wires, such as piano wire or brass wire, and the metal wire may be replaced by a resin wire. In this embodiment, the cutting member 4 with a diameter of 0.4 mm is taken as an example, but the diameter of the cutting member may be 2.0 mm to 0.3 mm, and more preferably 0.9 mm to 0.4 mm. In this embodiment, the cutting member 4 with a linear shape is taken as an example, but a plate-shaped cutting member capable of cutting the face material may be used. Examples of the facing material include synthetic fiber nonwoven fabric, glass fiber nonwoven fabric, glass fiber mixed paper, Kent paper, craft paper, and metal film, and at least one of these is laminated by being attached to the surface of the plate-shaped insulation material, or to the surface and back side. The plate-shaped insulation material is installed between the outer wall and the inner wall with the surface on which the facing material is laminated facing the inner wall. In this embodiment, the cutting member 4 is a single linear member, but it may be composed of two or more linear members or two or more plate-shaped members.

[0016] As shown in FIG. 1(C), the first support member 6 is a plate-like member having a predetermined width in the left-right direction of the paper in FIG. 1(C) and a predetermined length in the up-down direction of the paper in FIG. 1(C). One end 6a of the first support member 6 in the longitudinal direction (the end in the downward direction of the paper in FIG. 1(C)) is provided with a cutting member attachment portion 7 to which one end 4a of the cutting member 4 is attached and fixed. In addition, one edge 6b of the outer surface (the surface on the front side of the paper in FIG. 1(C)) 6d of the first support member 6 is provided with a first blade portion 12a formed by an inclined surface tapering from the right side of the paper to the left side of FIG. 1(C). Furthermore, the other edge 6c of the outer surface 6d of the first support member 6 is provided with a first blade portion 12b formed by an inclined surface tapering from the left side of the paper to the right side of FIG. 1(C). The first blade portions 12a and 12b cut the plate-like insulation material and the surface material when forming a rectangular recess in the plate-like insulation material.

[0017] 1(C), the first supporting member 6 has a V-shaped tip 6e of one end 6a, and a first blade portion 12c formed by an inclined surface tapering from the upper side to the lower side of the paper in FIG. 1(C) is provided at the tip 6e of the outer surface 6d of the first supporting member 6. The first blade portion 12c cuts the plate-shaped insulating material and the surface material when forming a rectangular recess in the plate-shaped insulating material.

[0018] The second support member 8 is a plate-like member having a shape similar to that of the first support member 6. One end 8a of the second support member 8 in the longitudinal direction (the end in the downward direction of the paper in FIG. 1(B)) is provided with a cutting member attachment portion (not shown) to which the other end 4b of the cutting member 4 is attached and fixed. In addition, one edge 8b of the outer surface (the surface on the left side of the paper in FIG. 1(B)) 8d of the second support member 8 is provided with a second blade portion 14a formed by a slope tapering from the back side to the front side of the paper in FIG. 1(B). Furthermore, the other edge (not shown) of the outer surface 8d of the second support member 8 is provided with a second blade portion (not shown) formed by a slope tapering from the front side to the back side of the paper in FIG. 1(B). The second blade portion 14a and the second blade portion (not shown) cut the plate-like insulation material and the surface material when forming a rectangular recess in the plate-like insulation material.

[0019] Similarly to the first supporting member 6, the second supporting member 8 has a V-shaped tip 8e of one end 8a, and a second blade portion 14c formed by an inclined surface tapering from the top to the bottom of the paper in Fig. 1(B) is provided at the tip 8e of the outer surface 8d of the second supporting member 8. The second blade portion 14c cuts the plate insulating material and the surface material when forming a rectangular recess in the plate insulating material.

[0020] As shown in Figures 1(A) and (B), the connection member 10 is a plate-like member having a predetermined thickness in the vertical direction of the paper of Figure 1(B), a predetermined width in the vertical direction of the paper of Figure 1(A), and a predetermined length in the horizontal direction of the paper of Figure 1(A). The width of the connection member 10 is the same as the width of the first support member 6 and the width of the second support member 8. Although the connection member 10 according to this embodiment is a plate-like member, it may have another shape. In addition, the center of the connection member 10 is provided with an attachment portion 10a for attaching a handle (see, for example, handle 10b in Figure 3(A)) that an operator holds when cutting the plate-like insulation material using the cutting tool 2.

[0021] The connecting member 10 connects the other end 6g in the longitudinal direction of the first supporting member 6 and the other end 8g in the longitudinal direction of the second supporting member 8 with the inner surface 6f (the surface on the left side of the paper in FIG. 1(B)) of the first supporting member 6 facing the inner surface 8f (the surface on the right side of the paper in FIG. 1(B)) at a predetermined distance. The first supporting member 6 and the second supporting member 8 connected by the connecting member 10 support one end 4a of the cutting member 4 at one end 6a of the first supporting member 6 and the other end 4b of the cutting member 4 at one end 8a of the second supporting member 8 in a taut state in the left-right direction of the paper in FIG. 1(B).

[0022] When forming a rectangular recess in a plate-shaped insulation material using this cutting tool 2, first, the cutting member 4 is aligned with one side (one side) of the rectangle, and the cutting member 4, the first blade portion 12c, and the second blade portion 14c are inserted into the facing material and the plate-shaped insulation material to cut the facing material and the plate-shaped insulation material. Next, the cutting member 4 is aligned with the side (the other side) opposite to the cut side, and the cutting member 4, the first blade portion 12c, and the second blade portion 14c are inserted into the facing material and the plate-shaped insulation material to cut the facing material and the plate-shaped insulation material. Then, while the cutting tool 2 is inserted into the plate-shaped insulation material, the cutting tool 2 is moved from the other side toward the one side, and the facing material and the plate-shaped insulation material located on the other two sides that have not yet been cut are cut by the first blade portion 12a or 12b and the second blade portion 14a or the second blade portion not shown, while the plate-shaped insulation material located between the other two sides is cut by the cutting member 4. The above steps may be repeated multiple times depending on the depth of the recess to be cut.

[0023] According to the cutting tool 2 of this embodiment, the facing material and the plate-shaped insulating material can be easily cut by the cutting member 4, the first blade portions 12a-12c, the second blade portions 14a, 14c, and the second blade portion (not shown). Therefore, there is no need to cut the facing material in advance with a cutter or the like, and the cutting work can be simplified. Furthermore, in the past, the plate-shaped insulating material was cut carefully and over time with a spatula while focusing on the size of the recess, but by using the cutting tool 2, the plate-shaped insulating material can be cut easily, accurately, and safely, and the cutting time can be shortened.

[0024] In the above embodiment, the case where both ends of the cutting member 4 are attached and fixed to one end 6a of the first support member 6 and one end 8a of the second support member 8 has been described as an example, but the cutting member 4 may be detachably supported using a first support member 26 and a second support member 28, as in the cutting tool 20 shown in Fig. 2. Fig. 2 shows the configuration of a cutting tool 20 according to another embodiment, with Fig. 2(A) being a plan view, Fig. 2(B) being a front view, and Fig. 2(C) being a right side view.

[0025] As shown in Fig. 2, one end portion 26a in the longitudinal direction of the first support member 26 (the end portion in the downward direction of the paper in Fig. 2(C)) has a cutting member attachment portion 27 to which one end portion 4a of the cutting member 4 is attached and fixed. Similarly, one end portion 28a in the longitudinal direction of the second support member 28 (the end portion in the downward direction of the paper in Fig. 2(C)) has a cutting member attachment portion (not shown) to which the other end portion 4b of the cutting member 4 is attached and fixed. Note that the configuration of the cutting tool 20 shown in Fig. 2 is the same as that of the cutting tool 2 shown in Fig. 1, except for the cutting member attachment portion 27 and the attachment / detachment portion 29, and the cutting member attachment portion and attachment / detachment portion (not shown) of the second support member 28.

[0026] When attaching the cutting member 4 to the first support member 26 and the second support member 28, one end 4a of the cutting member 4 is inserted into the detachable portion 29 and attached to the cutting member attachment portion 27, and the other end 4b of the cutting member 4 is inserted into the detachable portion (not shown) of the second support member 28 and attached to the cutting member attachment portion (not shown) of the second support member 28. When replacing the cutting member 4, the cutting member 4 is removed from the cutting member attachment portion 27 via the detachable portion 29, and is removed from the cutting member attachment portion (not shown) of the second support member 38 via the detachable portion (not shown). According to the cutting tool 20 shown in FIG. 2, the cutting member 4 can be easily replaced even if the cutting member 4 is broken due to repeated use.

[0027] In the above embodiment, the first support member 6 is provided with the first blades 12a and 12b on both longitudinal edges thereof, but may be provided with a first support member 36, as in the cutting tool 30 shown in FIG. 3. Similarly, the second support member 8 is provided with the second blade 14a and a second blade not shown on both longitudinal edges thereof, but may be provided with a second support member 38 as shown in FIG. 3. FIG. 3 shows the configuration of a cutting tool 30 according to another embodiment, with FIG. 3(A) being a front view and FIG. 3(B) being a right side view. As shown in FIG. 3, a first blade 32a for cutting the facing material and the plate-shaped insulating material is provided on either edge 36b in the longitudinal direction of the first support member 36. Similarly, a second blade 34a for cutting the facing material and the plate-shaped insulating material is provided on either edge 38b in the longitudinal direction of the second support member 38. The cutting tool 30 cuts the plate-shaped insulation material by moving the cutting tool 30 toward the front of the paper in Figure 3(A) (to the left of the paper in Figure 3(B)), i.e., with the first blade portion 32a and the second blade portion 34a facing in the direction of travel.

[0028] In the above embodiment, the first support member 6 having the first blades 12a-12c formed by the inclined surface of the outer surface 6d of the first support member 6 has been described as an example, but it may be configured to include a first support member 36, for example, as in the cutting tool 30 shown in FIG. 3. Similarly, the second support member 8 having the second blades 14a, 14c formed by the inclined surface of the outer surface 8d of the second support member 8 and a second blade not shown in the figure has been described as an example, but it may be configured to include a second support member 38, for example, as in the cutting tool 30 shown in FIG. 3. The first support member 36 has a so-called double-edged first blade 32a formed by an inclined surface tapered from the back side to the front side of the paper surface of FIG. 3(A) on the edge portion 36b of both sides. Similarly, a so-called double-edged second blade portion 34a formed by an inclined surface that tapers from the back side to the front side of the page in Fig. 3(A) is provided on edge portions 38b of both sides of the second support member 38. The first blade portion 32a and the second blade portion 34a cut the plate insulation and the surface material when forming a rectangular recess in the plate insulation.

[0029] Furthermore, instead of the first blade portions 12a-12c and the second blade portions 14a, 14c in the above-described embodiment, the first support member and the second support member may be provided with double-edged first blade portions and second blade portions formed by inclined surfaces tapering toward the tips on both longitudinal edges of the first support member and the second support member.

[0030] Also, a configuration may be provided with a depth adjustment unit that adjusts the depth of the recess cut by the cutting member 4, for example, a depth adjustment unit 40 as shown in FIG. 3. The depth adjustment unit 40 shown in FIG. 3 is provided with two screws 42a, 42b. The depth adjustment unit 40 adjusts the distance from the tips 43a, 43b of the screws 42a, 42b to the cutting member 4, that is, the depth of the recess (the distance from the tip to the cutting member 4 = the depth of the recess), by adjusting the amount by which the screws 42a, 42b protrude downward from the connection member 10 in the paper surface of FIG. 3(A). According to the cutting tool 30 shown in FIG. 3, since it is provided with the depth adjustment unit 40, it is possible to prevent the recess from being cut deeper than necessary.

[0031] The configuration of the cutting tool 30 shown in FIG. 3 is the same as that of the cutting tool 2 shown in FIG. 1, except for the first cutting edge portion 32a, the second cutting edge portion 34a, and the depth adjustment portion 40. [Explanation of symbols]

[0032] 2...cutting tool, 4...cutting member, 6, 26, 36...first support member, 7, 27...cutting member mounting portion, 8, 28, 38...second support member, 10...connecting member, 10a...mounting portion, 10b...handle, 12a, 12b, 12c, 32a...first blade portion, 14a, 14c, 34a...second blade portion, 29...detachable portion, 40...depth adjustment portion, 42a, 42b...screws.

Claims

1. A cutting tool for forming a recess in a plate-shaped insulation material, At least one linear or plate-shaped cutting member for cutting the plate-shaped insulation material; a first support member which is a plate-like member having a predetermined width and length, supports one end of the cutting member at one end in the longitudinal direction, and has a first blade portion at at least one of the longitudinal edges and at the tip of the longitudinal end for cutting the plate-like insulation material; a second support member, which is a plate-like member having a predetermined width and length, and which supports the other end of the cutting member at one end in the longitudinal direction, and which has a second blade portion at at least one of the longitudinal edges and at the tip of the longitudinal end for cutting the plate-like insulation material; a connecting member that connects the other end of the first support member in the longitudinal direction to the other end of the second support member in a state in which a surface of the first support member and a surface of the second support member are opposed to each other at a predetermined distance, A cutting tool, wherein the first blade portion and the second blade portion provided on at least one of the longitudinal edges are located closer to the connecting member than the cutting member.

2. The cutting tool according to claim 1 , wherein the first support member and the second support member each include a detachable portion that detachably supports the cutting member.

3. The cutting tool according to claim 1 or 2, further comprising a depth adjustment portion for adjusting a depth of the recess cut by the cutting member.

4. The cutting tool according to any one of claims 1 to 3, wherein the connecting member has an attachment portion for attaching a handle.

5. The cutting tool according to any one of claims 1 to 4, wherein the cutting member is a stainless steel wire, a piano wire, a brass wire or a resin wire.

6. The cutting tool according to any one of claims 1 to 5, wherein the cutting member has a diameter of 2.0 mm to 0.3 mm.

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