JP2022190727A - Cutting tool - Google Patents

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 The present invention relates to a cutting tool for forming recesses in plate-shaped heat insulating material.

2. Description of the Related Art In a building represented by a house or the like, a heat insulating material is installed between an outer wall and an inner wall. In the plate-shaped heat insulating material fitted between the main pillar and the stud, it is necessary to provide a concave portion (notch portion) for accommodating an outlet box or the like. This concave portion is formed by cutting and cutting the plate-shaped heat insulating material with a cutter or a spatula (see, for example, FIG. 10 and paragraph number [0045] of Patent Document 1).

JP 2013-129992

By the way, on the surface of the plate-like heat insulating material, a face material such as nonwoven fabric is laminated by being attached. When forming the recesses in the plate-like heat insulating material, it is naturally necessary to cut the face material as well, but cutting the face material is not easy compared to the plate-like heat insulating material. Therefore, first, the face material is cut with a cutter, and then the plate-shaped heat insulating material is cut with a spatula, which requires labor and time.

In addition, there must be no gap between the outlet box and the recess in order to avoid deterioration of the heat insulation effect, and therefore the recess must be cut to an exact size, requiring precise work.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting tool capable of easily cutting a plate-shaped heat insulating material and shortening the cutting time.

A cutting tool of the present invention is a cutting tool for forming recesses in a plate-shaped heat insulating material, comprising at least one linear or plate-shaped cutting member for cutting the plate-shaped heat insulating material and a predetermined width and length. a plate-shaped member having a thickness, one longitudinal end of which supports one end of the cutting member, and cuts the plate-shaped heat insulating material at least one of the longitudinal edges and a tip of the one end A first support member having a first blade, and a plate member having a predetermined width and length, one longitudinal end of which supports the other end of the cutting member, and the longitudinal edge of which supports the other end of the cutting member. and a second support member having a second blade for cutting the plate-shaped heat insulating material at the tip of at least one of the one end and the surface of the first support member and the surface of the second support member separated by a predetermined distance a connection member that connects the other longitudinal end of the first support member and the other longitudinal end of the second support member in a state of facing each other.

Moreover, the cutting tool of the present invention includes a detachable portion in which the first support member and the second support member detachably support the cutting member.

Moreover, the cutting tool of the present invention is provided with a depth adjusting portion that adjusts the depth of the recess cut by the cutting member.

Moreover, the connection member of the cutting tool of the present invention has a mounting portion for mounting a handle. The cutting member of the cutting tool of the present invention is stainless steel wire, piano wire, brass wire or resin wire. Also, the cutting member of the cutting tool of the present invention has a diameter of 2.0 mm to 0.3 mm.

Further, the plate-shaped heat insulating material of the cutting tool of the present invention has a face material laminated on the front surface or the front surface and the back surface, and the cutting member, the first blade portion and the second blade portion further include the 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.

ADVANTAGE OF THE INVENTION According to this invention, the cutting tool which can cut a plate-shaped heat insulating material easily and can shorten cutting time can be provided.

It is a figure which shows the structure of the cutting tool which concerns on embodiment. It is a figure which shows the structure of the cutting tool which concerns on other embodiment. It is a figure which shows the structure of the cutting tool which concerns on other embodiment.

A cutting tool according to an embodiment will be described below with reference to the drawings. 1A and 1B are diagrams showing the configuration of a cutting tool according to an embodiment, FIG. 1A being its plan view, FIG. 1B being its front view, and FIG. 1C being its right side view. be. The cutting tool 2 according to this embodiment is a tool for forming recesses (cutouts) for housing an outlet box or the like in a plate-shaped heat insulating material installed between the outer wall and the inner wall of a building such as a house. It comprises a cutting member 4, a first supporting member 6, a second supporting member 8 and a connecting member 10, as shown in FIG.

The cutting member 4 cuts the face material laminated on the surface of the plate-shaped heat insulating material, and further cuts and cuts the plate-shaped heat insulating material. The cutting member 4 is a stainless steel wire with a diameter of 0.4 mm, and is a linear member that is supported by a first supporting member 6 and a second supporting member 8 in a stretched state in the horizontal direction of the paper surface of FIG. 1(B). be. In this embodiment, the cutting member 4 made of stainless steel wire will be described as an example. A resin wire may be used instead. Further, in this embodiment, the cutting member 4 having a diameter of 0.4 mm will be described as an example. It is more preferable to have Further, in this embodiment, the linear cutting member 4 will be described as an example, but a plate-like cutting member capable of cutting the surface material may be used. Examples of the face material include synthetic fiber nonwoven fabric, glass fiber nonwoven fabric, glass fiber mixed paper, Kent paper, kraft paper, metal film, etc. At least one of these is attached to the surface, or the front and back surfaces of the plate-shaped heat insulating material. are stacked equally. In addition, the plate-shaped heat insulating material is installed between the outer wall and the inner wall in a state in which the surface on which the face material is laminated faces the inner wall side. Also, in this embodiment, the case where the cutting member 4 is a single linear member will be described as an example. good too.

As shown in FIG. 1(C), the first support member 6 has a plate shape having a predetermined width in the left-right direction of the paper surface of FIG. 1(C) and a predetermined length in the vertical direction of the paper surface of FIG. 1(C). It is a member. A cutting member attachment portion 7 to which one end portion 4a of the cutting member 4 is attached and fixed is provided at one end portion 6a in the longitudinal direction of the first support member 6 (the end portion in the downward direction of the paper surface of FIG. 1(C)). ing. One edge 6b of the outer surface (the surface on the front side of the paper surface of FIG. 1(C)) 6d of the first support member 6 has a slope tapering from the right side to the left side of the paper surface of FIG. 1(C). A first blade portion 12a formed by a surface is provided. Further, the other edge portion 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 to the right side of the paper surface of FIG. 1(C). ing. The first blades 12a and 12b cut the plate-shaped heat insulating material and the face material when forming rectangular concave portions in the plate-shaped heat insulating material.

As shown in FIG. 1(C), the first support member 6 has a V-shaped tip 6e of one end 6a, and the tip 6e of the outer surface 6d of the first support member 6 has a 1(C) is provided with a first blade portion 12c formed by an inclined surface that tapers from the upper side to the lower side of the page. The first blade portion 12c cuts the plate-shaped heat insulating material and the face material when forming a rectangular concave portion in the plate-shaped heat insulating material.

The second support member 8 is a plate-like member having the same shape as the first support member 6 . A cutting member attachment portion (not shown) to which the other end portion 4b of the cutting member 4 is attached and fixed to one longitudinal end portion (the end portion in the downward direction of the paper surface of FIG. 1(B)) 8a of the second support member 8 (not shown). ) are provided. One edge 8b of the outer surface (the surface on the left side of the paper surface of FIG. 1B) 8d of the second support member 8 tapers from the back side of the paper surface of FIG. A second blade portion 14a formed by an inclined surface is provided. Further, on the other edge (not shown) of the outer surface 8d of the second support member 8, a second blade (not shown) formed by an inclined surface tapering from the front side to the back side of the paper surface of FIG. department is provided. The second blade portion 14a and the second blade portion (not shown) cut the plate-shaped heat insulating material and the face material when forming the rectangular concave portion in the plate-shaped heat insulating material.

As with the first support member 6, the second support member 8 has a V-shaped tip 8e of the one end 8a, and the tip 8e of the outer surface 8d of the second support member 8 has a tip 8e of FIG. A second blade portion 14c is provided that is formed by an inclined surface that tapers from the upper side to the lower side of the paper surface of (B). The second blade portion 14c cuts the plate-shaped heat insulating material and the face material when forming a rectangular concave portion in the plate-shaped heat insulating material.

As shown in FIGS. 1A and 1B, the connection member 10 has a predetermined thickness in the vertical direction of the paper surface of FIG. 1B, a predetermined width in the vertical direction of the paper surface of FIG. 1(A) is a plate-like member having a predetermined length in the horizontal direction of the paper surface. Also, 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 connecting member 10 according to this embodiment is a plate-like member, it may have another shape. In addition, at the central part of the connection member 10, a mounting portion for mounting a handle (see, for example, the handle 10b in FIG. 3A) held by the operator when cutting the plate-shaped heat insulating material using the cutting tool 2 10a is provided.

The connection member 10 includes an inner surface 6f of the first support member 6 (a surface on the left side of the paper surface of FIG. 1B) and an inner surface 8f of the second support member 8 (a surface on the right side of the paper surface of FIG. 1B). are opposed to each other at a predetermined distance, the other longitudinal end 6g of the first support member 6 and the other longitudinal end 8g of the second support member 8 are connected. The first support member 6 and the second support member 8, which are connected by the connection member 10, connect one end 4a of the cutting member 4 with one end 6a of the first support member 6 and one end 8a of the second support member 8. The other end 4b of the cutting member 4 is supported while being stretched in the lateral direction of the paper surface of FIG. 1(B).

When using this cutting tool 2 to form a rectangular recess in a plate-shaped heat insulating material, first, the cutting member 4 and the first blade The portion 12c and the second blade portion 14c are pierced into the face material and the plate-shaped heat insulating material to cut the face material and the plate-shaped heat insulating material. Next, the cutting member 4, the first blade portion 12c and the second blade portion 14c are combined with the face material and the plate-shaped heat insulating material in a state where the cutting member 4 is aligned with the side opposite to the cut one side (the other side). to cut the face material and plate-shaped heat insulating material. Then, by moving the cutting tool 2 from the other side toward the one side while sticking the cutting tool 2 into the plate-shaped heat insulating material, the surface material and the plate located on the other two sides that have not yet been cut are cut. While cutting the heat insulating material with the first blade portion 12a or 12b and the second blade portion 14a or a second blade portion (not shown), the cutting member 4 cuts the plate heat insulating material located between the other two sides. The above steps may be repeated multiple times depending on the depth of the recess to be cut.

According to the cutting tool 2 according to this embodiment, the cutting member 4, the first blade portions 12a to 12c, the second blade portions 14a and 14c, and the second blade portion (not shown) can easily cut the surface material and the plate-shaped heat insulating material. can be cut. Therefore, there is no need to cut the face material in advance with a cutter or the like, and the cutting work can be simplified. In addition, in the past, the plate-shaped heat insulating material was carefully cut with a spatula while focusing on the size of the recess, etc., but by using the cutting tool 2, the plate-shaped heat insulating material can be cut easily, accurately and safely. Cutting can be performed, and reduction in cutting time can be realized.

In the above-described embodiment, the case where both ends of the cutting member 4 are attached and fixed to the one end 6a of the first support member 6 and the one end 8a of the second support member 8 has been described as an example. However, for example, as in the cutting tool 20 shown in FIG. 2, the cutting member 4 may be detachably supported by using the first support member 26 and the second support member 28 . 2A and 2B are diagrams showing the configuration of a cutting tool 20 according to another embodiment, FIG. 2A is its plan view, FIG. 2B is its front view, and FIG. 2C is its right side. It is a plan view.

As shown in FIG. 2, one end portion 4a of the cutting member 4 is attached and fixed to one end portion 26a in the longitudinal direction of the first support member 26 (the end portion in the downward direction of the paper surface of FIG. 2(C)). It has a mounting portion 27 . Similarly, the other end 4b of the cutting member 4 is attached to one end 28a in the longitudinal direction of the second support member 28 (the end in the downward direction of the paper surface of FIG. not shown). The configuration of the cutting tool 20 shown in FIG. 2 other than the cutting member mounting portion 27, the detachable portion 29, and the cutting member mounting portion and detachable portion (not shown) of the second support member 28 is the same as that of the cutting tool 2 shown in FIG. are identical.

When attaching the cutting member 4 to the first support member 26 and the second support member 28, one end portion 4a of the cutting member 4 is inserted into the attachment/detachment portion 29 and attached to the cutting member attachment portion 27, and the other end of the cutting member 4 is attached. The portion 4b is inserted into an attachment/detachment portion (not shown) of the second support member 28 and attached to a 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 mounting portion 27 via the detachable portion 29, and is removed from the cutting member mounting 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, even if the cutting member 4 is broken due to repeated use, the cutting member 4 can be easily replaced.

In addition, in the above-described embodiment, the case where the first blade portions 12a and 12b are provided on both edges in the longitudinal direction of the first support member 6 has been described as an example. , the first support member 36 may be provided. Similarly, the case where the second blade portion 14a and the second blade portion (not shown) are provided on both edges in the longitudinal direction of the second support member 8 has been described as an example, but the second support member as shown in FIG. 38 may be provided. 3A and 3B are views showing the configuration of a cutting tool 30 according to another embodiment, FIG. 3A being a front view thereof, and FIG. 3B being a right side view thereof. As shown in FIG. 3, one edge 36b of the first support member 36 in the longitudinal direction is provided with a first blade 32a for cutting the surface material and the plate-shaped heat insulating material. Similarly, one edge 38b of the second support member 38 in the longitudinal direction is provided with a second blade 34a for cutting the surface material and the plate-shaped heat insulating material. In the cutting tool 30, the cutting tool 30 is moved toward the front side of the paper surface of FIG. The plate-shaped heat insulating material is cut by moving the two blades 34a.

Further, in the above-described embodiment, the first support member 6 having the first blade portions 12a to 12c formed by the inclined surface of the outer surface 6d of the first support member 6 was described as an example. For example, like the cutting tool 30 shown in FIG. Similarly, the second support member 8 having the second blade portions 14a and 14c formed by the inclined surfaces of the outer surface 8d of the second support member 8 and the second blade portion (not shown) was described as an example. For example, like the cutting tool 30 shown in FIG. 3, a configuration including a second support member 38 may be employed. Edge portions 36b on both sides of the first support member 36 are provided with so-called double-edged first blade portions 32a, which are formed by inclined surfaces that taper from the back side to the front side of the paper surface of FIG. 3(A). It is Similarly, on the edges 38b on both sides of the second support member 38, a so-called double-edged second blade portion is formed by an inclined surface tapering from the back side to the front side of the paper surface of FIG. 3(A). 34a is provided. The first blade portion 32a and the second blade portion 34a cut the plate-shaped heat insulating material and the face material when forming the rectangular concave portion in the plate-shaped heat insulating material.

Further, instead of the first blade portions 12a to 12c and the second blade portions 14a and 14c according to the above-described embodiment, the first support member is provided on both edges in the longitudinal direction of the first support member and the second support member. And, it may be configured to have a double-edged first blade portion and a second blade portion formed by inclined surfaces that taper toward the tip on the edges of the surfaces on both sides of the second support member.

Further, it is also possible to adopt a configuration including a depth adjusting section for adjusting the depth of the recess cut by the cutting member 4, for example, a depth adjusting section 40 as shown in FIG. The depth adjuster 40 shown in FIG. 3 has two screws 42a and 42b. By adjusting the amount of protrusion of the screws 42a and 42b from the connection member 10 in the downward direction of the paper surface of FIG. , that is, the depth of the recess (the distance from the tip to the cutting member 4 = the depth of the recess). According to the cutting tool 30 shown in FIG. 3, since the depth adjustment part 40 is provided, it is possible to prevent the recess from being cut more deeply than necessary.

3 are the same as those of the cutting tool 2 shown in FIG.

DESCRIPTION OF SYMBOLS 2... Cutting tool, 4... Cutting member, 6, 26, 36... First support member, 7, 27... Cutting member attachment portion, 8, 28, 38... Second support member, 10... Connection member, 10a... Attachment portion , 10b... handle, 12a, 12b, 12c, 32a... first blade part, 14a, 14c, 34a... second blade part, 29... detachable part, 40... depth adjusting part, 42a, 42b... screw.

Claims (8)

A cutting tool for forming recesses in a plate-shaped heat insulating material,
at least one linear or plate-shaped cutting member for cutting the plate-shaped heat insulating material;
A plate-shaped member having a predetermined width and length, one longitudinal end of which supports one end of the cutting member, and at least one of the longitudinal edges and a tip of the one end of the plate-shaped member. a first support member having a first blade for cutting the heat insulating material;
A plate-shaped member having a predetermined width and length, one longitudinal end of which supports the other end of the cutting member, and at least one of the longitudinal edges and a tip of the one end of the plate-like member. a second support member having a second blade for cutting the heat insulating material;
The other longitudinal end of the first support member and the other longitudinal end of the second support member are opposed to each other with a predetermined distance between the surface of the first support member and the surface of the second support member. a connecting member that connects the ends;
A cutting tool with 2. The cutting tool according to claim 1, wherein the first support member and the second support member have attachment/detachment portions that detachably support the cutting member. 3. The cutting tool according to claim 1, further comprising a depth adjusting portion for adjusting the depth of the recess cut by the cutting member. The cutting tool according to any one of claims 1 to 3, wherein the connecting member has a mounting portion for mounting a handle. The cutting tool according to any one of claims 1 to 4, wherein the cutting member is stainless steel wire, piano wire, brass wire or resin wire. 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. The plate-shaped heat insulating material has a surface material laminated on the front surface or the front surface and the back surface,
The cutting tool according to any one of claims 1 to 6, wherein the cutting member, the first blade portion and the second blade portion further cut the surface material. 8. The cutting tool according to claim 7, wherein 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.

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