JP7087423B2 - Movable blade for cutting composite building materials and manufacturing method of composite building materials using them - Google Patents

Description

The present invention relates to a movable blade for cutting a composite building material prime field for cutting a composite building material prime field, and a method for manufacturing a composite building material using the movable blade.

For example, as shown in Patent Document 1 and the like below, a composite building material having a front base material, a back base material, and a core material filled between them is widely known. Such a composite building material is used as a material constituting each part of a building such as a wall and a roof.

Such a composite building material may be manufactured by cutting a composite building material prime body having a front base material, a back base material, and a core material to a predetermined length, similarly to the composite building material. As a method for cutting the composite building material prime field, for example, it is conceivable to use a blade as shown in Patent Document 2 or the like below, that is, a blade having a linearly extending blade edge. When such a blade is used, the blade is placed above the support base on which the composite building material is supported, and the blade is pushed down against the composite building material to cut the composite building material.

Japanese Unexamined Patent Publication No. 2002-273743 Japanese Unexamined Patent Publication No. 2005-336567

The surface base material is provided with a peripheral wall for partitioning a space for filling the core material. The peripheral wall is a wall portion extending in the thickness direction of the composite building material prime field. When a blade having a linearly extending blade edge is used for a composite building material element including such a peripheral wall, the peripheral wall may buckle during cutting. It is probable that the buckling of the peripheral wall was caused by the peripheral wall not being able to withstand the pressure generated by pushing down the blade.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to use a movable blade for cutting a composite building material prime field capable of suppressing buckling of the peripheral wall of a surface base material and a movable blade thereof. It is to provide a method for manufacturing a composite building material.

The movable blade for cutting a composite building material element according to the present invention has a core material filled between a front base material, a back base material, a front base material, and a back base material, and is a space in which the core material is filled. The peripheral wall that divides the building is a movable blade for cutting the composite building material element body provided on the surface base material, and the composite building material element body is supported by the support base, and the movable blade is , It is placed above the support and is displaceable so that it is in contact with and separated from the support, and it is pushed down against the composite building material supported by the support to cut the composite building material. The movable blade has a cutting edge extending in the width direction of the movable blade, and the cutting edge is arranged on both sides of the movable blade in the width direction and as it goes outward in the width direction. An inclined portion that is inclined and extended with respect to the width direction so as to be lowered, and a straight portion that is arranged at the center of the movable blade in the width direction and extends linearly along the width direction. It contains and is configured to cut the peripheral wall by an inclined portion.

The method for manufacturing a composite building material using a movable blade for cutting a composite building material element according to the present invention includes a step of supporting the composite building material element on a support base so that the peripheral wall is located below the inclined portion. It includes a step of pushing down the movable blade against the composite building material element to cut the composite building material element so as to cut the peripheral wall by the inclined portion.

According to the movable blade for cutting a composite building material element body of the present invention and the method for manufacturing a composite building material using the same, the slope is inclined with respect to the width direction and extended so as to be lowered toward the outside in the width direction. Since the peripheral wall is cut by the portion, the pressure when the movable blade is pushed down can be distributed to the core material inside the peripheral wall. As a result, buckling of the peripheral wall of the surface base material can be suppressed.

It is a top view which shows the eaves starter manufactured by the manufacturing method of the composite building material by embodiment of this invention. It is sectional drawing which follows the line II-II of FIG. It is a flowchart which shows the manufacturing method of the composite building material by embodiment of this invention. It is a front view which shows the cutting machine used in the cutting process of the eaves starter element body of FIG. It is a side view which shows the cutting machine of FIG. It is explanatory drawing which shows the movable blade and the composite building material prime body of FIG. 5 in more detail. It is explanatory drawing which shows the movable blade of FIG. 5 in more detail.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment FIG. 1 is a plan view showing an eaves tip starter 1 manufactured by the method for manufacturing a composite building material according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line II-II of FIG. The eaves starter 1 shown in FIGS. 1 and 2 is a building material (composite building material) installed at the eaves (the tip of the eaves) on the roof of a building such as a house.

As shown in FIG. 1, the eaves-end starter 1 has the appearance of a rectangular shape in a plan view having a long side and a short side. The eaves starter 1 of the present embodiment is adapted to be installed at the eaves so that the long side is parallel to the eaves direction of the roof and the short side is parallel to the eaves direction of the roof. Hereinafter, the direction in which the long side of the eaves starter 1 extends is referred to as the width direction 1a of the eaves starter 1, and the direction in which the short side of the eaves starter 1 extends is referred to as the depth direction 1b of the eaves starter 1, and the width direction 1a and The direction extending in the depth direction 1b is called the thickness direction 1c of the eaves tip starter 1.

As particularly shown in FIG. 2, the eaves front starter 1 has a front base material 10, a back base material 11, and a core material 12.

The table base material 10 is a metal plate formed in a box shape in cross section. The metal plate used as the material of the table base material 10 includes a hot-dip Zn-based plated steel sheet, a hot-dip Al-plated steel sheet, a hot-dip Zn-based plated stainless steel sheet, a hot-dip Al-plated stainless steel sheet, a stainless steel sheet, an Al plate, a Ti plate, and a painted hot-dip Zn-based sheet. A plated steel sheet, a painted molten Al-plated steel sheet, a painted molten Zn-based plated stainless steel sheet, a painted molten Al-plated stainless steel sheet, a painted stainless steel sheet, a painted Al plate, or a painted Ti plate can be used.

The table base material 10 has a top plate 100, a peripheral wall 101, a bottom plate 102, and a lower opening 103. The top plate 100 is a rectangular plate portion in a plan view facing the sky (anti-roof base side) when the eaves starter 1 is installed at the eaves. The peripheral wall 101 is a wall portion extending from both ends of the top plate 100 related to the depth direction 1b in the thickness direction 1c of the eaves starter 1, and partitions a space filled with the core material 12. The peripheral wall 101 extends in the width direction 1a, and constitutes the eaves side end surface and the ridge side end surface of the eaves front starter 1. No wall portion is provided at the side end 1d of the eaves starter 1 of the present embodiment. That is, the inside of the surface base material 10 is open at the side end 1d of the eaves starter 1. The reason why the wall portion is not provided on the side end 1d of the eaves starter 1 is that the eaves starter 1 of the present embodiment has the eaves starter prime 2 (see FIGS. 4 and 5) as described in detail later. This is because it is manufactured by cutting it to a predetermined length. The eaves-end starter prime field 2 is a long one in which a plurality of eaves-end starters 1 are connected so as to abut each other's side ends 1d. The bottom plate 102 is a plate portion extending in the depth direction 1b from the tips of the peripheral walls 101 on the eave side and the ridge side. The lower opening 103 is an opening formed between the tips of the bottom plates 102 on the eave side and the ridge side.

The back base material 11 is a member arranged on the back side of the front base material 10 so as to close the lower opening 103 of the front base material 10. As the backing material 11, a lightweight material such as aluminum foil, aluminum vapor-deposited paper, aluminum hydroxide paper, calcium carbonate paper, resin film, or glass fiber paper can be used. By using these lightweight materials for the backing material 11, the weight of the eaves starter 1 can be reduced.

The core material 12 is made of, for example, a foamed resin, and is filled between the front base material 10 and the back base material 11. The material of the core material 12 is not particularly limited, and urethane foam, phenol foam, isocyanurate foam and the like can be used. However, it is essential to use non-combustible certified materials for roofing materials. The non-combustible material certification test is a heat generation test based on the ISO5660-1 cone calorimeter test method. When the foamed resin to be the core material 12 is urethane foam or the like having a large calorific value, the thickness of the core material 12 can be reduced, or the foamed resin may contain inorganic foamed particles.

Next, FIG. 3 is a flowchart showing a method of manufacturing a composite building material according to an embodiment of the present invention. As shown in FIG. 3, the method for manufacturing a composite building material according to the embodiment of the present invention includes a step of manufacturing an eaves-front starter prime field (step S1) and a step of cutting the eaves-front starter prime field (step S2). There is.

The manufacturing step (step S1) of the eaves starter prime body includes a molding step (step S11), an injection step (step S12), a backing material arranging step (step S13), and a foaming step (step S14).

The molding step (step S11) is a step of molding a long metal strip so as to have a cross-sectional shape (cross-sectional box shape) of the surface base material 10 as shown in FIG. Examples of the molding process include roll forming process.

The injection step (step S12) is a step of injecting the resin into the inside of the metal strip having a box-shaped cross section formed in the molding step. The back base material arranging step (step S13) is a step of arranging the back base material 11 so as to close the lower opening 103 after the injection step. The foaming step (step S14) is a step of foaming the resin by performing a heat treatment after the backing base material arranging step, and filling the core material 12 between the front base material 10 and the backing base material 11.

Through these molding steps, injection steps, backing material placement steps, and foaming steps (manufacturing steps of the eaves starter element), the eaves starter element 2 (see FIGS. 4 and 5), which is the material of the eaves starter 1, is manufactured. To. As described above, the eaves-end starter prime field 2 is a long one in which a plurality of eaves-end starters 1 are connected so as to abut each other's side ends 1d.

The step of cutting the eaves starter element (step S2) is a step of cutting the eaves starter element 2 at predetermined intervals to obtain the eaves starter 1. In the cutting step of the eaves starter element 2, the cutting machine 3 described with reference to FIGS. 4 to 7 is used. In this cutting step, a step of supporting the eaves starter element 2 on the support base 30 of the cutting machine 3 (step S21) and a step of cutting the eaves starter element 2 by the movable blade 31 of the cutting machine 3 (step S22). And are included.

Next, FIG. 4 is a front view showing the cutting machine 3 used in the cutting step of the eaves-end starter prime field of FIG. 3, and FIG. 5 is a side view showing the cutting machine 3 of FIG. The cutting machine 3 shown in FIGS. 4 and 5 is used in the cutting step of the eaves starter element body of FIG. 3, and can be installed after the manufacturing equipment of the eaves starter element body 2. The cutting machine 3 has a support base 30, a movable blade 31, and a restraining means 32.

The support base 30 is a base on which the eaves starter element 2 is supported, and extends in the longitudinal direction 2a of the eaves starter element 2. The longitudinal direction 2a of the eaves starter element 2 corresponds to the width direction 1a of the eaves starter 1 shown in FIG.

The movable blade 31 is a blade that is arranged above the support base 30 and is displaceable in the vertical direction so as to be in contact with and separated from the support base 30. The movable blade 31 is pushed down against the eaves starter element 2 supported by the support base 30, so that the eaves starter element 2 is cut.

The restraining means 32 is a means for restraining the eaves starter element 2 when the eaves starter element 2 is cut by the movable blade 31. The restraining means 32 has an upper surface restraining body 321 and a side surface restraining body 322.

The upper surface restraint body 321 is a plate-shaped member extending in the longitudinal direction 2a of the eaves-end starter prime field 2. The upper surface restraint body 321 is arranged above the support base 30, and is lowered when the eaves starter element 2 is cut by the movable blade 31 to press the eaves starter element 2 against the support base 30 to press the eaves starter element 2 against the eaves starter. Restrain the prime field 2. The upper surface restraint body 321 is provided with an insertion hole 321a into which the movable blade 31 is inserted, and the eaves starter element 2 is pressed against the support base 30 by the upper surface restraint body 321 at least around the movable blade 31.

The side restraint body 322 is a protruding body provided on the upper surface of the support base 30, and is arranged on both sides of the eaves starter element 2 with respect to the lateral direction 2b of the eaves starter element 2. The lateral direction 2b of the eaves starter element 2 corresponds to the depth direction 1b of the eaves starter 1 shown in FIG. The side restraint body 322 regulates the displacement of the eaves starter element 2 related to the lateral direction 2b when the eaves starter element 2 is cut by the movable blade 31.

Next, FIG. 6 is an explanatory diagram showing the movable blade 31 and the eaves-end starter element 2 of FIG. 5 in more detail. As shown in FIG. 6, the movable blade 31 has a cutting edge 310 extending in the width direction 31a of the movable blade 31. The cutting edge 310 is formed at the lower end of the movable blade 31. The width direction 31a of the movable blade 31 corresponds to the lateral direction 2b of the eaves-end starter prime field 2.

The cutting edge 310 includes an inclined portion 311. The inclined portion 311 is a blade that is inclined and extended with respect to the width direction 31a so as to be lowered toward the outside of the width direction 31a, and is arranged on both sides of the movable blade 31 related to the width direction 31a. As shown in FIG. 6, the inclined portion 311 may be a curved blade inclined and extended with respect to the width direction 31a as a whole, or a linear blade similarly inclined and extended. May be.

In the support step (step S21) of FIG. 3, the eaves starter prime field 2 is supported so that the peripheral wall 101 is located below the inclined portion 311 and the top plate 100 of the surface base material 10 is in contact with the upper surface of the support base 30. It is supported by the platform 30.

By locating the peripheral wall 101 below the inclined portion 311, the peripheral wall 101 is cut by the inclined portion 311. Since the inclined portion 311 is inclined and extended as described above, when the movable blade 31 is pushed down with respect to the eaves tip starter prime field 2, the pressure applied from the inclined portion 311 to the peripheral wall 101 is downward. Not only toward it, but also toward the inside of the movable blade 31 in the width direction 31a. Since the core material 12 is filled inside the peripheral wall 101, the pressure from the inclined portion 311 is dispersed in the core material 12. Therefore, the pressure applied to the peripheral wall 101 is reduced, and buckling of the peripheral wall 101 can be suppressed.

Further, by arranging the top plate 100 of the surface base material 10 in contact with the upper surface of the support base 30, the support base 30 receives the pressure from the movable blade 31 and the deformation of the top plate 100 can be suppressed.

Next, FIG. 7 is an explanatory diagram showing the movable blade 31 of FIG. 5 in more detail. The movable blade 31 has a first blade body 33 and a second blade body 34. The first and second blades 33 and 34 are arranged side by side in the longitudinal direction 2a of the eaves tip starter prime field 2, and have the same configuration except for the orientation in which they are arranged.

As shown in FIG. 7, the blade edges 310 of the first and second blades 33 and 34 are provided with a back surface 310r and a front surface 310f, respectively. The back surface 310r extends along the displacement direction of the movable blade 31, and the front surface 310f is inclined and extends with respect to the back surface 310r. The first and second blades 33 and 34 are arranged side by side so that their respective front surfaces 310f face each other and the back surface 310r faces outward. By arranging the first and second blades 33 and 34 in such an orientation, the cut end faces of the eaves starter element 2 are sagging on both sides of the movable blade 31 related to the longitudinal direction 2a of the eaves starter element 2. Can be suppressed, and the cut end face of the eaves starter prime field 2 (eaves starter 1) can be made more beautiful.

In such a cutting machine 3 and a method for manufacturing a composite building material using the cutting machine 3, the peripheral wall 101 is formed by an inclined portion 311 inclined with respect to the width direction 31a so as to be lowered toward the outside of the width direction 31a. Since it is cut, the pressure when the movable blade 31 is pushed down can be distributed to the core material 12 inside the peripheral wall 101. As a result, buckling of the peripheral wall 101 of the surface base material 10 can be suppressed.

Further, since the restraining means 32 for restraining the eaves starter element 2 when the eaves starter element 2 is cut by the movable blade 31, the cut end surface of the eaves starter element 2 (eaves starter 1) is twisted. It can be beautiful.

Further, in the first and second blades 33 and 34 of the movable blade 31, the front surfaces 310f of the first and second blades 33 and 34 face each other and the back surfaces 310r of the first and second blades 33 and 34 are outside. Since they are arranged side by side so as to face toward each other, it is possible to suppress the occurrence of sagging on the cut end faces of the eaves starter element 2 on both sides of the movable blade 31 related to the longitudinal direction 2a of the eaves starter element 2, and the eaves. The cut end face of the starter element 2 (eave starter 1) can be made more beautiful.

Further, when the eaves starter element 2 is supported by the support base 30, the top plate 100 of the table base material 10 is placed in contact with the upper surface of the support base 30, so that the top plate 100 is deformed when cut by the movable blade 31. Can be suppressed.

In the embodiment, the eaves starter 1 is manufactured from the eaves starter prime field 2, but the cutting machine of the present invention can also be used for cutting other composite building materials such as metal roofing materials and outer wall materials. ..

Further, in the embodiment, it is described that the eaves starter 1 is manufactured by cutting the long eaves starter prime field 2 in which a plurality of eaves starter 1s are connected so as to abut each other's side ends 1d at predetermined intervals. is doing. However, the eaves starter 1 of FIG. 1 can be further cut to manufacture a narrow eaves starter. Such a narrow eaves starter may be used as an accessory for a roof wife. That is, the complex building material includes the accessory, and the complex building material prime is not necessarily cut at predetermined intervals.

1 eaves starter (complex building material)
10 Front base material 100 Top plate 101 Peripheral wall 11 Back base material 12 Core material 2 Eaves tip starter prime field (composite building material prime field)
3 Cutting machine 30 Support base 31 Movable blade 310 Blade tip 310f Front surface 310r Back surface 311 Inclined part 32 Restraining means 33, 34 First and second blades

Claims (7)

The front base material has a core material filled between the front base material, the back base material, and the front base material and the back base material, and a peripheral wall for partitioning a space filled with the core material is provided on the front base material. A movable blade for cutting a composite building material prime field for cutting a composite building material prime field, wherein the composite building material prime field is supported by a support base, and the movable blade is arranged above the support base. It is provided so as to be displaceable so as to be in contact with and separated from the support, and is used to cut the composite building material by being pushed down against the composite building material supported by the support. ,
The movable blade has a cutting edge extending in the width direction of the movable blade.
The cutting edge is
An inclined portion that is arranged on both sides of the movable blade in the width direction and is inclined and extended with respect to the width direction so as to be lowered toward the outside in the width direction.
It is arranged in the central portion of the movable blade in the width direction, and includes a straight portion extending linearly along the width direction.
It is configured to cut the peripheral wall by the inclined portion.
Movable blade for cutting composite building materials. The straight portion is arranged so as to be located below the upper end of the inclined portion.
The movable blade for cutting a composite building material element according to claim 1. The movable blade has a first blade and a second blade that are separated from each other.
The cutting edges of the first and second blades are provided with a back surface extending along the displacement direction of the movable blade and a front surface extending inclined with respect to the back surface, respectively.
The first and second blades are arranged side by side so that the front surfaces of the first and second blades face each other and the back surfaces of the first and second blades face outward.
The movable blade for cutting a composite building material element according to claim 1 or 2 . A method for manufacturing a composite building material using the movable blade for cutting a composite building material element according to claim 1.
A step of supporting the composite building material prime field on the support base so that the peripheral wall is located below the inclined portion.
The step includes a step of pushing down the movable blade against the composite building material element to cut the composite building material element so as to cut the peripheral wall by the inclined portion.
Manufacturing method of complex building materials. When the composite building material prime field is supported by the support base, the top plate of the surface base material is placed in contact with the upper surface of the support base.
The method for manufacturing a complex building material according to claim 4 . The straight portion is arranged so as to be located below the upper end of the inclined portion.
The method for manufacturing a complex building material according to claim 4 or 5 . The movable blade has a first blade and a second blade that are separated from each other.
The cutting edges of the first and second blades are provided with a back surface extending along the displacement direction of the movable blade and a front surface extending inclined with respect to the back surface, respectively.
The first and second blades are arranged side by side so that the front surfaces of the first and second blades face each other and the back surfaces of the first and second blades face outward.
The method for manufacturing a complex building material according to any one of claims 4 to 6 .

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