JP3125167U - Face wood cutting aid - Google Patents

Abstract

A face-cutting aid that can easily and accurately cut an end of a face-matching side at an angle of 45 ° is provided.
SOLUTION: Both end surfaces in the length direction of a triangular cylindrical body 12 are based on apexes between two orthogonal sides, and toward the intermediate portion side in the length direction of the triangular cylindrical body 12 of the face-cutting aid 10. Since the inner inclined cutting guide surface 12b is inclined by 45 °, the end portion of the face wooden 11 on the abutting side is simply and accurately orthogonalized simply by cutting the face wooden 11 along the inner inclined cutting guide surface 12b. With the apex between the two sides as the base point, it can be inclined and cut at 45 ° toward the intermediate part in the length direction of the face plate 11.
[Selection] Figure 1

Description

  This invention relates to a face-cutting aid, and more particularly to a face-cutting aid that cuts the end of the face-to-face side at an angle when using face-pieces used for chamfering concrete structures, mortar structures, etc. .

For example, a chamfer for chamfering a concrete foundation of a building is used by being fixed to an inner side of a formwork for foundation on which concrete is placed. At that time, at the corners where the formwork for the foundation crosses, the end faces on the butting side are inclined at 45 °, and the cut surfaces of the double-sided trees are joined to each other. Were connected at right angles.
Conventionally, for example, as disclosed in the column of the prior art of Patent Document 1, sawing that relies on the operator's feeling has been employed for the inclined cut at the end portion of the face wood.
JP 2003-184303 A

  However, in patent document 1, the sawing by an operator's feeling was employ | adopted as a slope cutting method of a face wood in this way. For this reason, it is difficult to cut accurately, and it has been necessary to partially repair (cut, etc.) the face wood after fixing the face wood to the foundation formwork. Moreover, when not repairing, the chamfering surface of the concrete after placement was distorted.

An object of the present invention is to provide a face-cutting aid that can easily and accurately cut the end of the face-to-face side at an angle of 45 °.
Another object of the present invention is to provide a face-cutting aid that can position the face-piece within the cylindrical hole.

  The invention according to claim 1 is characterized in that the main body is a triangular cylinder having a right isosceles triangle in which a cylindrical hole having a cross section substantially the same as that of a face tree having a right angled isosceles triangle is formed through both end faces in the length direction. And the cylindrical face wood cutting auxiliary tool which inclines cuts the part which protruded from the opening of the both ends of the length direction of the triangular cylinder among the face trees, Comprising: Both end faces of the length direction of the triangle cylinder However, this is a face-cutting aid that is an inwardly-slanted cutting guide surface that is inclined at an angle of 45 ° toward the intermediate portion in the length direction of the triangular cylindrical body with the apex between two orthogonal sides as the base point.

According to the first aspect of the present invention, the cross-sectional shapes of the face wood and the triangular cylinder are matched with each other, and the face wood is inserted into the cylindrical hole of the triangular cylinder. At this time, one end portion of the face wood is projected from one opening of the triangular cylinder, and this projecting portion is cut by, for example, a saw along the corresponding inner inclined cutting guide surface. The inner inclined cutting guide surface is a surface inclined by 45 ° toward the intermediate portion side (hereinafter referred to as the inner side) in the lengthwise direction of the triangular cylindrical body, with the apex between two orthogonal sides as the base point. Therefore, just by cutting the face wood along the inner inclined cutting guide surface, the end of the face wood butting side is simply and accurately based on the vertex between two orthogonal sides, and the length direction of the face wood Can be inclined and cut at 45 ° to the middle part side of.
In addition, the other end of the face tree protrudes from the other opening of the triangular cylindrical body, and the protruding portion is cut along the inner inclined cutting guide surface on the opposite side. Can form a 45 ° inclined cut surface that is line symmetric at the other end of the face wood.

  As described above, both the inner inclined cutting guide surfaces have a shape inclined from each other by 45 ° toward the intermediate portion in the length direction of the triangular cylinder, with the apex portion between the two orthogonal wall plates of the triangular cylinder as the base point. ing. Therefore, using one face-cutting auxiliary tool, in the projecting corner forming part of the formwork for placing concrete or mortar, the ends of the two horizontal face-butts that are butted at right angles to each other Can be formed.

Further, by using this face-cutting auxiliary tool, in the corner forming portion of the formwork, a mountain-cut portion that can be abutted perpendicularly to the abutting portion of two horizontal facewoods is formed at the end of the facewood. be able to.
That is, one end portion of the face wood is projected from one opening of the triangular cylinder, and one end portion of the face wood is cut along one inner inclined cutting guide surface. Next, this cut portion is projected from the other opening of the triangular cylinder by a half length, and the protruded portion is cut along the opposite inner inclined cutting guide surface. As a result, it is possible to form a mountain cut portion in which an inclined cut surface of 45 ° is adjacent to one end portion of the face wood.

The face wood is a member that chamfers the corner of the placed structure by fixing it to the side of the formwork on the concrete pouring side when placing the structure with concrete or mortar.
The face wood may be a rod with a right isosceles triangle cross section or a cylinder. The size of the face wood (including the cross-sectional area and length) is arbitrary.
As the material of the face wood, for example, various synthetic resins (for example, polystyrene or the like, in particular, polystyrene blended with impact-resistant polystyrene and a foaming agent as a reinforcing material are preferable) can be employed.
Only one end in the longitudinal direction of the face wood may be cut at 45 ° or both ends may be cut. The length of the end portion to be cut (removed) in the face wood is arbitrary.

Triangular cylinders first insert the face wood into the bore to align the axis of the face wood with the axis of the triangular cylinder, and cut the face wood along the inner inclined cutting guide surface as it is. The angle of the cut surface with respect to the vertical direction can be exactly matched to the same 45 ° as the inner inclined cutting guide surface.
The material of the triangular cylinder is arbitrary. For example, various plastics (polyethylene, polypropylene, acrylic, etc.), various woods (cedar, straw, pine, paulownia, cherry blossoms, etc.) and various metals (iron, stainless steel, aluminum, brass, bronze, etc.) can be used. it can. In order to ensure the accuracy of the cut angle of the face wood, the triangular cylinder must be rigid or close to it.

The cross-sectional shapes of the triangular hole and the face wood are both isosceles right triangles. A cross section here means the cross section orthogonal to the length direction of a cylinder hole (triangular cylinder), or the cross section orthogonal to the length direction of a face wood. Further, the cross-sectional area of the cylindrical hole may be the same as the cross-sectional area of the face wood, or may be slightly larger than that of the face wood. However, when at least one of the triangular cylinder and the face wood is, for example, a soft material (including a foam), the cross-sectional area of the cylinder hole may be slightly smaller than the cross-sectional area of the face wood.
The inner inclined cutting guide surface is preferably a flat surface with as few irregularities as possible.
The inner inclined cutting guide surface may be formed on one end surface in the length direction of the triangular cylindrical body, or may be formed on both end surfaces.
As a blade for cutting the face wood, for example, a saw, a cutter or the like can be employed.
Both end faces in the length direction of the triangular cylindrical body (both inner inclined cutting guide surfaces) are surfaces inclined by 45 ° toward the intermediate part side in the length direction of the triangular cylindrical body with the vertex between the two orthogonal sides as the base point. There are three points that define the corresponding end face of the triangular cylinder, and the base point is the vertex where two sides of equal length are orthogonal, and the inner side of the triangular cylinder (on the middle in the length direction) This means that the surface is inclined by 45 °.

  The invention according to claim 2 has a triangular cylindrical body having a cylindrical hole having a cross section substantially the same as a cross section of a right angled isosceles triangle as a main body, and protrudes from an opening of the cylindrical hole in the face tree. It is a cylindrical face wood cutting aid that cuts a portion at an angle, and the opening surfaces on both sides in the length direction of the triangular cylindrical body are based on the vertex between two orthogonal wall plates of the triangular cylindrical body, and This is a face-cutting aid that is an outwardly inclined cutting guide surface that is inclined at 45 ° to the opposite side of the intermediate portion in the length direction of the triangular cylinder.

According to the second aspect of the present invention, the cross-sectional shapes are matched with each other, and the face wood is inserted into the cylindrical hole of the triangular cylindrical body. At this time, one end portion of the face wood protrudes from one opening of the triangular cylinder, and this protruding portion is cut by, for example, a saw along the corresponding outer inclined cutting guide surface. The outer inclined cutting guide surface is a surface inclined at an angle of 45 ° to the opposite side (hereinafter referred to as the outer side) from the intermediate portion in the length direction of the triangular cylindrical body, with the apex between two orthogonal sides as the base point. Therefore, just by cutting the face wood along the outer inclined cutting guide surface, the end of the face wood butting side is simply and accurately based on the vertex between two orthogonal sides, and the length direction of the face wood Can be inclined and cut at 45 ° to the opposite side of the intermediate portion.
In addition, by projecting the other end portion of the face wood from the other opening of the triangular cylinder and cutting the projecting portion along the outer inclined cutting guide surface on the opposite side, the slope cut surface of one end portion of the face wood Can form a 45 ° inclined cut surface that is line symmetric at the other end of the face wood.

Thus, the both outer inclined cutting guide surfaces have a shape inclined at 45 ° to the outside of the triangular cylinder, with the apex portion between the two orthogonal wall plates of the triangular cylinder as the base point. Therefore, using one face-cutting auxiliary tool, it is possible to form the ends of the two horizontal face-butts that are butted at a right angle at the corner forming portion of the formwork.
Further, by using this face-cutting auxiliary tool, in the projecting corner forming portion of the formwork, a mountain-cut portion that can be vertically butted against the butted portion of the two horizontal planks is formed at the end of the plank. be able to.
That is, one end portion of the face wood is projected from one opening of the triangular cylinder, and one end portion of the face wood is cut along one outer inclined cutting guide surface. Next, this cut portion is projected from the other opening of the triangular cylinder by a half length, and the projecting portion is cut along the opposite outer inclined cutting guide surface. As a result, it is possible to form a mountain cut portion in which an inclined cut surface of 45 ° is adjacent to one end portion of the face wood.

  Both end faces (both outer inclined cutting guide surfaces) in the length direction of the triangular cylindrical body are based on the apex between two orthogonal sides, and are 45 ° to the opposite side to the intermediate portion in the length direction of the triangular cylindrical body. An inclined surface is defined by taking the apex of two sides that are equal in length among the three sides that define the corresponding end face of the triangular cylinder as the base point, and the outside of the triangular cylinder (in the middle of the length direction) It means that the surface is inclined by 45 ° to the side opposite to the portion.

  The invention according to claim 3 is the face wood cutting according to claim 1 or 2, wherein the triangular cylinder is formed with a pin hole for a positioning pin of the face wood inserted into the cylinder hole. It is an auxiliary tool.

  According to the third aspect of the present invention, the face wood can be positioned (fixed) by the positioning pin by inserting the positioning pin into the pin hole. Thereby, it is possible to stably and accurately cut the end portion of the face wood.

As the positioning pin, for example, a nail or a needle, a screw screw or the like can be employed.
The material of the positioning pin is arbitrary. For example, various plastics (polyethylene, polypropylene, acrylic, etc.), various woods (cedar, straw, pine, paulownia, cherry blossoms, etc.) and various metals (iron, stainless steel, aluminum, brass, bronze, etc.) can be used. it can. Also, various ceramics may be used.
The number of positioning pins used is appropriately changed according to the number of pin holes formed.
The size of the pin hole and the number of formation are arbitrary. Moreover, the formation position of the pin hole in the triangular cylinder is also arbitrary. For example, you may form a pin hole only in the one end part of the length direction of a triangular cylinder, or the both ends of this length direction.

According to the first aspect of the present invention, the both end faces in the length direction of the triangular cylinder body are 45 ° toward the intermediate part side in the length direction of the triangular cylinder body with the apex between two orthogonal sides as the base point. Since it is an inclined inner inclined cutting guide surface, it is possible to easily and accurately set the apex between two orthogonal sides by simply cutting the face wood along the inner inclined cutting guide surface. As a base point, it can be inclined and cut at an angle of 45 ° toward the middle part in the length direction of the face wood.
In addition, by using the outer inclined cutting guide surfaces of the triangular cylinder in order with respect to an arbitrary end portion of the face wood, two horizontal face woods that are abutted at right angles at the projecting corner forming portion of the formwork A mountain-cut portion that can be vertically butted against the butted portion can be formed at the end of the face wood.

In particular, according to the second aspect of the invention, the both end faces in the length direction of the triangular cylinder are based on the vertices between the two orthogonal sides, and the intermediate part in the length direction of the triangle cylinder is Since the outer inclined cutting guide surface is inclined by 45 ° to the opposite side, the end of the facing side of the face tree is simply and accurately orthogonal 2 simply by cutting the face tree along the outer inclined cutting guide surface. With the apex between the sides as the base point, it is possible to cut at an inclination of 45 ° to the opposite side of the intermediate portion in the length direction of the face tree.
In addition, by using the outer inclined cutting guide surfaces of the triangular cylinder in order with respect to an arbitrary end portion of the face wood, two horizontal face woods that are abutted at right angles at the corner forming portion of the formwork A mountain-cut portion that can be vertically butted against the butted portion can be formed at the end of the face wood.

  Further, according to the invention described in claim 3, the face wood can be positioned by the positioning pin by inserting the positioning pin into the pin hole. Thereby, it is possible to stably and accurately cut the end portion of the face wood.

  Hereinafter, embodiments of the present invention will be specifically described.

1-3, 10 is the face-cutting auxiliary tool which concerns on Example 1 of this invention, and this face-cutting auxiliary tool 10 is the protrusion corner part C1 (FIG. 16) of the concrete foundation of a building, To the end of the pair of face woods 11 that chamfer adjacent horizontal sides, the apex between two orthogonal sides is the base point, toward the intermediate side (inner side) of the length direction of the face wood 11 It is a jig that cuts at 45 °.
9 to 11, reference numeral 20 denotes another face-cutting aid 20 according to the first embodiment of the present invention. The face-cutting aid 20 has a vertical side portion of the protruding corner portion C1. At one end of the chamfer 11 to be chamfered (upper end / end of the butting side), the apex between two orthogonal sides is the base point, and the opposite side (outside) of the intermediate portion in the length direction of the chamfer 11 It is a jig that cuts at 45 °. The face wood 11 is obtained by blending polystyrene for impact and a foaming agent as a reinforcing material and making it a solid body of an isosceles triangle with a right-angle cross section.

First, the former face-cutting aid 10 will be described with reference to FIGS.
The face-cutting auxiliary tool 10 has a right-angled two-piece tube 12a having substantially the same cross-sectional shape and cross-sectional area as the face-piece 11 having a right-angled isosceles triangle and penetrating both end faces in the length direction. An incline cut with an equilateral triangular triangular body 12 as a main body and both end faces in the length direction of the triangular cylindrical body 12 being inclined at 45 ° to the inside of the triangular cylindrical body 12 with the apex between two orthogonal sides as the base point It becomes the guide surface 12b.

  The triangular cylindrical body 12 is made of transparent acrylic, and a pair of equilateral side plates 13 and 14 having mutually equal orthogonal lengths, and a hypotenuse side plate 15 thicker than the equilateral side plates 13 and 14 are formed into a triangular cylindrical body 12. The cross sections perpendicular to the length direction are connected so as to form a right-angled isosceles triangle. One equilateral side plate 13 is a strip-like elongated rectangular plate. Further, the other equilateral plate 14 has the same thickness as the one equilateral plate 13 and has the same bottom as the long side of the one equilateral plate 13 and the lower side shorter than the long side of the one equilateral plate 13. A trapezoidal plate having a bottom. Further, the hypotenuse side plate 15 has a lower base having the same length as the upper base of the other equilateral plate 14 and an upper base having the same length as the lower base of the other equilateral plate 14 (the long side of the one equilateral plate 13). And a trapezoidal plate having a height higher than that of the other equilateral plate 14.

  Insertion of a nail (positioning pin) 16 for positioning the face wood 11 inserted into the cylindrical hole 12a at an intermediate position in the width direction of the one equilateral plate 13 out of both ends in the length direction of the one equilateral plate 13 Nail holes (pin holes) 17 for (insertion / removal) are drilled one by one. At this time, the distance from the end surface of the triangular cylinder 12 to the nail hole 17 is the same at both ends of the triangular cylinder 12. In order to clearly indicate the positions of the corresponding nail holes 17, white and wide circular marks 18 are respectively provided around the formation portions of the nail holes 17.

Next, with reference to FIGS. 9-11, the latter face-cutting aid 20 is demonstrated.
The face-cutting aid 20 has a triangular cylindrical body 12 having a cylindrical hole 12a as a main body, and both end faces in the length direction of the triangular cylindrical body 12 are based on vertices between two orthogonal sides. The outer inclined cutting guide surface 12c is inclined 45 ° to the outside of the body 12.
One equilateral side plate 13 of the triangular cylindrical body 12 is a strip-like elongated rectangular plate. In addition, the other equilateral plate 14 has the same thickness as the one equilateral plate 13 and has the same bottom as the long side of the one equilateral plate 13 and the lower side longer than the long side of the one equilateral plate 13. A trapezoidal plate having a bottom. Further, the hypotenuse side plate 15 has a lower base having the same length as the upper base of the other equilateral plate 14 and an upper base having the same length as the lower base of the other equilateral plate 14 and is higher than the other equilateral plate 14. It is a trapezoidal plate with high height.
One nail hole 17 is formed at an intermediate position in the width direction of the hypotenuse side plate 15 among both ends of the hypotenuse side plate 15 in the length direction. At this time, the distance from the end surface of the triangular cylinder 12 to the nail hole 17 is the same at both ends of the triangular cylinder 12. White and wide circular marks 18 are respectively provided around the portions where the nail holes 17 are formed. Other configurations are the same as the face-cutting aid 10.

Next, with reference to FIGS. 4 to 8, using the face-cutting aid 10 and face-cutting aid 20 according to Embodiment 1 of the present invention, among the corners C1 of the concrete foundation of the building A method of chamfering each of the three sides that face each other will be described.
First, a method for cutting the slope of the face wood 11 using the face wood cutting aid 10 shown in FIGS. 1 to 3 will be described.
The cross-sectional shapes are made to coincide with each other, and one horizontally placed face wood 11 is inserted into the tubular hole 12a of the triangular tubular body 12 of the face wood cutting aid 10 (FIG. 4). At this time, one end of the face wood 11 is protruded from one opening of the triangular cylinder 12 by a predetermined length. Then, the nail 16 is inserted into the nail hole 17 on the one opening side of the triangular cylinder 12 with the white circular mark 18 as a guide, and the tip of the nail 16 is pierced into the face wood 11, so that the face wood 11 is attached to the triangular cylinder 12. Position (fix) to. Thereby, the edge part of the face wooden 11 can be stably and accurately cut by inclination.

  Subsequently, the protruding portion of the face wood 11 after positioning is cut by the saw 19 along the inner inclined cutting guide surface 12b on one opening side (FIG. 5). The inner inclined cutting guide surface 12b is a surface inclined by 45 ° toward the inner side of the triangular cylindrical body 12 with the apex between two orthogonal sides as a base point. Therefore, by cutting the face wood 11 along the inner inclined cutting guide surface 12b, the end of the face wood 11 on the abutting side is simply and accurately based on the apex between two orthogonal sides, and the face wood 11 Can be cut at 45 ° inside.

Next, the nail 16 is pulled out from the nail hole 17, and the sloped and cut face wood 11 is pulled out from the triangular cylinder 12, and is fixed horizontally along one of the upper sides of the protruding corner forming portion 21 of the mold 20. (FIG. 6). As a method of fixing the face wood 11 to the formwork 20, sticking with a double-sided tape is employed. In addition, nailing or bonding with an adhesive may be used.
Thereafter, the other face wood 11 is inserted into the cylindrical hole 12a of the triangular cylindrical body 12 (FIG. 7). Then, one end portion of the other face wood 11 protrudes from the other opening of the triangular cylinder 12 by a predetermined length, and this protruding portion is cut by the saw 19 along the opposite inner inclined cutting guide surface 12b. As a result, a 45 ° inclined cut surface 11a that is axisymmetric with the inclined cut surface 11a at one end of one face wood 11 and can be abutted against the inclined cut surface 11a is formed at one end of the other face wood 11. Can be formed. The other face wood 11 that has been subjected to the inclination cut is pulled out from the triangular cylinder 12 and is fixed horizontally along another upper side of the protruding corner forming portion 21 of the mold 20 (FIG. 8). At this time, the inclined cut surface 11a of one face wood 11 and the inclined cut face 11a of the other face wood 11 are joined at a right angle.

  Thus, both the inner inclined cutting guide surfaces 12b have a shape inclined from each other by 45 ° toward the inner side of the triangular cylindrical body 12 with the apex portion between the two orthogonal wall plates of the triangular cylindrical body 12 as a base point. Therefore, the two horizontal face-pieces 11 that are abutted at right angles to each other in the projecting corner forming portion 21 of the formwork 20 for placing the concrete foundation of the building using one face-cutting auxiliary tool 10 are abutted. Each side end can be formed.

Next, using another face-cutting auxiliary tool 20, in the projecting corner forming portion 21 of the formwork 20, a mountain-cut portion that can be vertically faced to the face-to-face portion of the two horizontal face-pieces 11 A method of forming the end 11 will be described.
That is, in another face-cutting auxiliary tool 20, one end of another face-piece 11 is protruded by a predetermined length from one opening of the triangular cylinder 12. In this state, the nail 16 is inserted into the nail hole 17 on one end side, and another face wood 11 is fixed to the triangular cylinder 12 (FIG. 12). Thereafter, one end portion of the face wood 11 is inclined and cut at 45 ° by saw 19 drawing along one outer inclined cutting guide surface 12c. The outer inclined cutting guide surface 12c is a surface inclined by 45 ° to the outside of the triangular cylindrical body 12 with the apex between two orthogonal sides as a base point. Therefore, by cutting the face wood 11 along the outer inclined cutting guide surface 12c, the end of the face wood 11 on the abutting side is simply and accurately based on the vertex between two orthogonal sides, and the face wood 11 Can be cut at 45 ° to the outside of

  Thereafter, the nail 16 is extracted from the nail hole 17, and another face wood 11 is extracted from the triangular cylinder 12. Then, after another face plate 11 is rotated by 180 °, it is returned to the cylindrical hole 12a of the triangular cylindrical body 12. At this time, the nail hole 17 on the other end side is matched with the pin piercing hole formed in the face plate 11 by the piercing of the previous nail 16. Thereby, half the length of the inclined cut portion protrudes from the other opening of the triangular cylinder 12 (FIG. 13). Then, the nail 16 is pierced through the nail hole 17 again into the pin puncture hole, and the face wood 11 is fixed to the triangular cylinder 12. Thereafter, the protruding portion of the face wood 11 after positioning is inclined and cut by saw 19 drawing along the outer inclined cutting guide surface 12c on the other opening side. As a result, a mountain cut portion is formed at one end portion of the facewood 11 and adjacent to the 45 ° inclined cut surface 11a (FIG. 14).

Then, the nail 16 is pulled out from the nail hole 17, and another face wood 11 is pulled out from the triangular cylinder 12, and this is fixed vertically along the side of the protruding corner forming portion 21 of the mold 20 (FIG. 15). .
After that, concrete is poured into the mold 20, and the concrete foundation of the building with the chamfered corner C1 is placed by curing and solidifying the concrete (FIG. 16).

Next, referring to FIG. 17 to FIG. 20, the two face woods 11 that are fixed horizontally along the upper side of the corner forming portion 22 of the formwork 20 using another face wood cutting aid 20. A method of making an inclined cut of 45 ° at the end portion on the butt side will be described.
First, in another face wood cutting aid 20, after inserting the face wood 11 into the cylindrical hole 12a of the triangular cylinder 12 and fixing the face wood 11 to the triangular cylinder 12 with the nail 16, one outer inclined cutting guide surface Along the 12c, one end of the face piece 11 protruding from one opening of the triangular cylinder 12 is cut at an angle of 45 ° (FIG. 17). The obtained facewood 11 is fixed horizontally along the upper side of the corner formation portion 22 of the mold 20 (FIG. 18).

Next, the nail 16 is removed from the nail hole 17, and the face wood 11 in the triangular cylinder 12 is replaced with another face wood 11. Then, the other face wood 11 is inclined and cut along the other outer inclined cutting guide surface 12c of the triangular cylindrical body 12 in the same operation. Thereafter, in the corner forming portion 22 of the mold frame 20, the obtained other face wood 11 is brought into contact with the face corner 11 fixed in advance so that the inclined cut surfaces 11 a come into contact with each other, and the corner corner forming portion 22 is adjacent. It is fixed horizontally along the upper side (FIG. 19).
Thereafter, the concrete is poured into the mold 20, and the concrete foundation of the building with the chamfered corner C2 is placed by curing and solidifying the concrete (FIG. 20).
In this way, each of the two planks 11 fixed in a horizontal orthogonal state along the upper side of the corner forming portion 22 of the mold 20 using another face-cutting aid 20 A 45 ° inclined cut that can be abutted against each other can be applied to the end portion on the abutting side.

It is a front view of the face-cutting auxiliary tool which concerns on Example 1 of this invention. It is a rear view of the face-cutting auxiliary tool which concerns on Example 1 of this invention. It is a longitudinal cross-sectional view of the face-cutting auxiliary tool which concerns on Example 1 of this invention. It is a principal part expansion perspective view which shows the positioning state of one facewood for horizontal arrangement | positioning by the facepiece cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the inclination cut state of one facewood for horizontal arrangement | positioning using the facepiece cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the state which horizontally fixed one facewood obtained with the facewood cutting auxiliary tool which concerns on Example 1 of this invention to the protruding corner formation part of a formwork. It is a perspective view which shows the inclination cut operation | work of the other face wood for horizontal arrangement | positioning using the face wood cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the state which fixed the other facewood obtained by the facewood cutting auxiliary tool which concerns on Example 1 of this invention horizontally to the protruding corner formation part of a formwork. It is a front view of another face-cutting auxiliary tool which concerns on Example 1 of this invention. It is a rear view of another face-cutting auxiliary tool which concerns on Example 1 of this invention. It is a longitudinal cross-sectional view of another face-cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the inclination cut state with respect to the one end part of the face wood using another face wood cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the mountain cutting cut state to the one end part of a face wood using another face wood cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view of the face wood by which the angle cut was given to the one end part obtained by another face wood cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the state which fixed the face wood by which the one end part obtained by the another face-wood cutting auxiliary tool which concerns on Example 1 of this invention was cut in a mountain cut perpendicularly to the projecting corner formation part of a formwork. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the concrete foundation of the building laid by the formwork to which the face wood obtained by the face wood cutting aid which concerns on Example 1 of this invention and another face wood cutting aid is fixed. It is a perspective view which shows the inclination cut state with respect to the one end part of one face wood using another face wood cutting auxiliary tool which concerns on Example 1 of this invention. It is a perspective view which shows the state which horizontally fixed one facewood obtained by another facewood cutting auxiliary tool which concerns on Example 1 of this invention to the corner formation part of a formwork. It is a perspective view showing the state where the other face wood obtained by another face wood cutting auxiliary tool concerning Example 1 of this invention was fixed horizontally to the corner formation part of a formwork. It is a perspective view of the concrete foundation of the building laid using the formwork which fixed the face wood obtained by another face wood cutting auxiliary tool concerning Example 1 of this device.

Explanation of symbols

10,20 Face wood cutting aid,
11 Face wood,
12a cylinder hole,
12 Triangular cylinder,
12b Inclined cutting guide surface,
12c outer inclined cutting guide surface,
16 Positioning nail (positioning pin),
17 pin hole.

Claims (3)

A cylindrical hole having a right-angled isosceles triangle formed by penetrating both end faces in the length direction has a cylindrical hole having substantially the same cross-section as a right-angled isosceles triangular face tree, and of the face wood, A cylindrical face wood cutting aid that cuts the portion protruding from the openings at both ends in the lengthwise direction of the triangular cylinder,
Both end faces in the length direction of the triangular cylindrical body become inner inclined cutting guide surfaces inclined at 45 ° toward the intermediate portion side in the length direction of the triangular cylindrical body, with the vertex between the two orthogonal sides as the base point. Face wood cutting aid. A cylindrical hole having a right-angled isosceles triangle formed by penetrating both end faces in the length direction has a cylindrical hole having substantially the same cross-section as a right-angled isosceles triangular face tree, and of the face wood, A cylindrical face wood cutting aid that cuts the portion protruding from the openings at both ends in the lengthwise direction of the triangular cylinder,
Outer inclined cutting guide surfaces in which both end faces in the length direction of the triangular cylinder body are inclined at 45 ° to the opposite side from the middle part in the length direction of the triangular cylinder body, with the apex between two orthogonal sides as a base point The cut wood cutting aid.   The face-cutting aid according to claim 1 or 2, wherein a pin hole for a positioning pin of the face-wood inserted into the cylinder hole is formed in the triangular cylinder.

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