JP2022042124A - External hood mounting method and mounting preparation workbench - Google Patents

Abstract

To provide an external hood mounting method and a mounting preparation workbench that can mount an external hood to an outer wall surface without scaffolds, and can easily and appropriately seal a gap between the outer wall surface and a mounting base part of the external hood by a seal material.SOLUTION: An external hood mounting method comprises: mounting a clay-like seal material 2 to a mounting base part 11 of an external hood 1 having the mounting base part 11 and a hood body part 12 supported by the mounting base part 11; mounting the mounting base part 11 to which the seal material 2 is attached to an outer wall surface 3a of an outer wall panel 3 before fixing the outer wall panel 3 to a building frame; and fixing the outer wall panel 3 to which the external hood 1 is mounted to the building frame.SELECTED DRAWING: Figure 4

Description

The present invention relates to a mounting method for mounting an external hood on the outer wall of a building by water-stopping treatment, and a mounting preparation workbench that can be used as a pre-setup when mounting the external hood on the outer wall of a building.

In Patent Document 1, in a state where the external hood is attached to the outer wall, a sealing material such as silicon is applied between the outer peripheral portion of the mounting base portion of the external hood and the outer wall, so that rainwater or the like can be applied to the mounting base portion. A structure for preventing intrusion from the outer peripheral portion to the ventilation port side is disclosed.

In addition, the outer wall panel is made of, for example, an outer wall frame, a heat insulating material, a waterproof sheet, an external hood penetrating member, a ventilation base, a face material, etc. It is fixed to the skeleton. Water stoppage work on the joints between the outer wall panels and attachment of the outer hood to the outer wall panels are performed by the craftsmen on the scaffolding assembled around the outer wall.

Patent Document 2 describes a weir forming step of attaching an adhesive tape to the surface of a plate so as to surround a part of a sealing material forming region provided on the surface of the plate to form a weir, and a sealing material in the sealing material forming region. Disclosed is a sealing material molding method including a test body arranging step of arranging the test piece and a molding step of molding the sealing material to a constant thickness so as to have a thickness corresponding to the height of the weir.

Japanese Unexamined Patent Publication No. 06-94277 Japanese Unexamined Patent Publication No. 2014-177763

By the way, when building a building in a narrow area, it may be difficult to assemble scaffolding around the building, and even in such a case, it is desirable to attach the external hood to the outer wall surface with a simple operation. Further, even if the outer wall surface has irregularities on the design, it is desired that the gap between the outer wall surface and the mounting base portion of the external hood is appropriately sealed with a sealing material.

The present invention makes it possible to mount the external hood on the outer wall surface without scaffolding, and also facilitates proper sealing of the gap between the outer wall surface and the mounting base portion of the external hood with a sealing material. It is an object of the present invention to provide a mounting method and a mounting preparation workbench.

The method of attaching the external hood of the present invention is as follows.
A step of adhering a clay-like sealing material to the mounting base portion and the mounting base portion of an external hood having a hood body portion supported by the mounting base portion.
Before fixing the outer wall panel to the building frame, the process of attaching the mounting base to which the sealing material is attached to the outer wall surface of the outer wall panel,
It is characterized by including a step of fixing the outer wall panel to which the outer hood is attached to the skeleton of the building.

With the above method, the work of sealing the gap between the outer wall surface and the mounting base with a sealing material is the work before fixing the outer wall panel to the building frame, so the sealing work is performed. It will be easier to do properly. Further, since the mounting base portion to which the sealing material is attached is attached to the outer wall surface, the sealing material is applied to the design unevenness of the outer wall surface as compared with the work of pushing the sealing material into the gap with the outer wall surface after mounting the mounting base portion. It becomes easy to make close contact with the outer wall surface in accordance with the above. In addition, since the scaffolding can be eliminated by attaching the external hood to the outer wall surface, there is a possibility that the construction of the building in a narrow area becomes easy.

The sealing material is molded into a triangular columnar shape having a substantially right triangle cross section, and the molded sealing material is formed around the mounting base so that the slope side of the sealing material faces outward from the peripheral portion of the mounting base. It may be attached to. According to this, it is possible to prevent the sealing material from protruding from the outer peripheral portion of the mounting base portion while facilitating the adhesion of the sealing material to the unevenness on the design of the outer wall surface.

Further, the mounting preparation workbench of the present invention has an opening serving as an entrance for inserting a clay-like sealing material, and a mold portion for molding the sealing material by pressing from the side of the opening portion and a mold portion of the mold portion. It is characterized by including a top plate portion having both sides as mounting surfaces and a support portion for supporting the top plate portion.

With the above configuration, the work of molding the sealing material by the mold portion and the mounting base portion of the external hood are placed on the top plate portion, and the molded sealing material is placed on the mounting base portion. Since both of the sticking work can be performed on the mounting preparation workbench, the work efficiency can be improved.

The length of the mold portion may be longer than the length of the top plate portion, and the mold portion may be horizontally movable in the length direction of the top plate portion. According to this, when molding the sealing material, the portion where the sealing material is pressed from the opening side can be positioned on the center side of the top plate portion by the horizontal movement of the mold portion, so that the sealing material can be used. It becomes easy to accurately receive the pressing force on the center side of the top plate portion. Further, since the length of the top plate portion can be shortened as much as possible, the weight and cost of the mounting preparation workbench can be reduced.

The mold portion may be detachably provided in a concave groove having a bottom surface lower than the upper surface of the top plate portion. According to this, it becomes easy to prepare a plurality of types of the molds and replace the molds as needed. Further, even when the upper end of the mold portion protrudes from the upper surface of the top plate portion, the upper surface side of the top plate portion can be flattened by removing the mold portion, so that the mounting base portion of the external hood can be appropriately used. It can be placed on the top plate.

The mold portion may be a member having two plate portions located at right angles. According to this, it becomes easy to mold the sealing material into a triangular columnar shape having a substantially right triangle cross section.

The mold portion may be made of a resin material. According to this, as compared with the structure in which the mold portion is made of a steel material, the molded seal material can be easily peeled off from the mold portion, and the shape of the seal material can be suppressed from losing its shape.

A magnet portion may be provided on the lower surface of the support portion. According to this, the mounting preparation workbench can be stably placed on a pedestal or the like whose upper surface is made of metal by magnetic force mounting. Further, even if the height of the mounting preparation workbench itself is low, it is possible to work at an appropriate height by magnetically mounting the mounting preparation workbench on a metal table having a relatively high height.

According to the method of mounting the external hood of the present invention, the external hood can be mounted on the outer wall surface without a scaffolding, and the gap between the outer wall surface and the mounting base portion of the external hood can be designed on the outer wall surface. Even if there is unevenness, it becomes easy to properly seal with a sealing material. Further, in the case of the mounting preparation workbench of the present invention, the work of molding the sealing material by the mold portion and the mounting base portion of the external hood are placed on the top plate portion, and the molded sealing material is described. Since both of the work of adhering to the mounting base portion can be performed on the mounting preparation workbench, the work efficiency can be improved.

FIGS. (A) and (B) are schematic perspective views showing an example of an external hood used in each embodiment. It is a figure which shows the embodiment, and is the schematic front view, the side view, and the bottom view which showed the state which attached the sealing material to the external hood of FIG. It is a figure which shows the embodiment, and is the explanatory view which showed the positional relationship between the cylindrical part of an external hood, and a sealing material. It is a figure which shows the embodiment, and is the explanatory view which showed the process of attaching an external hood to which a sealing material was attached to an outer wall panel before mounting a skeleton. It is a figure which shows the embodiment, and is explanatory drawing by the schematic vertical sectional view which showed the state which attached the outer wall panel to which the external hood was attached to the skeleton, and connected the ventilation equipment on the indoor side to the sleeve. It is a figure which shows the embodiment, and the description by the schematic vertical section which showed the state which attached the outer wall panel (having the unevenness on the design) to which the external hood was attached to the skeleton, and connected the ventilation equipment on the indoor side to the sleeve. It is a figure. It is a figure which shows the embodiment, and is explanatory drawing by the schematic cross section of the state which attached the outer wall panel (having the unevenness on the design) to which the external hood was attached to the skeleton. It is a figure which shows the mounting preparation workbench of an embodiment, the figure (A) is a front view, and the figure (B) is a plan view of an end portion. It is a top view which showed the whole of the mounting preparation workbench of an embodiment (it is shown by missing a part of a mold part). It is explanatory drawing which showed the work of molding a seal material using the mounting preparation workbench of an embodiment, FIG. It is explanatory drawing. It is explanatory drawing which showed the work of adhering a seal material to an external hood using the mounting preparation workbench of an embodiment, and FIG. Is an explanatory diagram seen from above. It is explanatory drawing which showed the cut-out ruler of the sealing material which can be used in an embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 (A) and 1 (B) show an example of the external hood 1. The external hood 1 has a mounting base portion 11 for fixing the external hood 1 to an outer wall surface, and a hood main body portion 12 supported by the mounting base portion 11. The mounting base portion 11 has a substantially square plate-shaped portion facing the outer wall surface. A circular opening is formed on the substantially central side of this plate-shaped portion. A cylindrical tubular portion 11a leading to the circular opening is fixed to the back surface side of the mounting base portion 11. A rising portion 11b is formed around the mounting base portion 11. When the external hood 1 is attached, the tip of the rising portion 11b comes into contact with the outer wall.

As shown in FIGS. 2 and 3, the method of attaching the external hood of this embodiment includes a step of attaching a clay-like sealing material 2 capable of maintaining its shape under no pressure to the attachment base portion 11. As the sealing material 2, for example, a sealing putty (dry sealing material) made of a polybutene resin-based material and having non-curing properties (non-drying properties), electrical insulation, and the like is used. Further, in this mounting method, the sealing material 2 is molded into a triangular columnar shape having a substantially right-angled isosceles triangle cross section, and the molded sealing material 2 is attached to the mounting base portion 11. The length of the equilateral sides of the triangle is, for example, about 23 mm. The sealing material 2 is attached to the upper side and the left and right vertical sides of the mounting base portion 11, and the sealing material 2 is not attached to the lower side. Further, in this embodiment, the sealing material 2 is molded into a long triangular columnar shape, and the long molded sealing material 2 is bent along the rising portion 11b to be left and right on the upper side of the mounting base portion 11. It is attached to one side of the vertical. Although three short rod-shaped sealing materials 2 may be used, the sealing property is not impaired at the seams.

In the mounting method, as shown in FIG. 4, the external hood 1 to which the sealing material 2 is attached is sandwiched between the mounting base portion 11 and the outer wall surface 3a of the outer wall panel 3 with the sealing material 2 interposed therebetween. The step of attaching to the outer wall surface 3a is included. This step is performed before fixing the outer wall panel 3 to the frame of the building with a predetermined hardware, for example, at the stage where the outer wall panel 3 is produced at the factory or at the stage where the outer wall panel is transported to the site.

The outer wall panel 3 is formed with a through-hole portion that penetrates from the outdoor side to the indoor side, and the sleeve 31 is preliminarily fitted into this through-hole portion at the factory. Further, at the time of this fitting, an annular gasket 32 is attached between the outer peripheral surface of the sleeve 31 and the end of the face material of the outer wall panel 3. The annular gasket 32 seals the gap between the edge of the face material forming the through port of the outer wall panel 3 and the outer peripheral surface of the sleeve 31.

The mounting base portion 11 is mounted on the outer wall surface 3a by inserting the tubular portion 11a into the sleeve 31. At this time, for example, an annular sealing material 11c made of EPDM (ethylene propylene diene rubber) is wound around the outer periphery of the tubular portion 11a, and the annular sealing material 11c is used to cover the inner peripheral surface of the sleeve 31 and the tubular portion 11a. Seal the gap with the outer peripheral surface.

Next, the outer wall panel 3 to which the outer hood 1 is attached is lifted by, for example, a lifting machine, and fixed to the building frame (beams, columns, etc.) using a predetermined hardware. FIG. 5 shows an enlarged view of the mounting state of the external hood 1 on the outer wall panel 3. Further, as shown in FIG. 5, after fixing the outer wall panel 3 to the building frame, the ventilation equipment 33 on the indoor side can be connected to the sleeve 31.

With the above mounting method, the work of sealing the gap between the outer wall surface 3a of the outer wall panel 3 and the mounting base portion 11 of the outer hood 1 with the sealing material 2 is performed before fixing the outer wall panel 3 to the building frame. Since the work is performed in stages, the sealing work can be appropriately performed. Further, since the scaffolding can be eliminated by attaching the external hood 1 to the outer wall surface 3a, there is a possibility that the construction of the building in a narrow area becomes easy.

Further, since the mounting base portion 11 to which the sealing material 2 is attached is mounted on the outer wall surface 3a, FIGS. 6 and 6 show that the sealing material 2 is pushed into the gap between the mounting base portion 11 and the outer wall surface 3a after mounting. As shown in 7, even if the outer wall surface 3a has irregularities on the design, it becomes easy to bring the sealing material 2 into close contact with the outer wall surface following the irregularities. Further, since the mounting base portion 11 can be pressed toward the wall instead of directly pressing the sealing material 2 against the outer wall surface 3a, the sealing material 2 attached to the mounting base portion 11 can be pressed against the outer wall surface 3a. It becomes easy to make the seal material adhere uniformly, and it becomes easy to suppress the occurrence of coarseness and density in the presence of the sealing material 2 depending on the location.

Further, the sealing material 2 is molded into a triangular columnar shape having a substantially right triangle in cross section, and the molded sealing material 2 is placed so that the slope side of the sealing material 2 faces outward from the peripheral portion of the mounting base portion 11. Since it is adhered to the peripheral portion of the mounting base portion 11, the sealing material 2 is attached to the outer peripheral portion of the mounting base portion 11 from the outer peripheral portion of the mounting base portion 11 while facilitating the adhesion of the sealing material 2 to the unevenness on the design of the outer wall surface 3a. The protrusion can be suppressed.

Next, the mounting preparation workbench 5 of the embodiment will be described with reference to FIGS. 8 to 11.

As shown in FIGS. 8A and 8B, the mounting preparation workbench 5 of the embodiment has a mold portion 51 for molding the sealing material 2 and a ceiling having both sides of the mold portion 51 as mounting surfaces. A plate portion 52 and a support portion 53 that supports the top plate portion 52 are provided.

The mold portion 51 has an upward opening 51a that serves as an inlet for the sealing material 2, and the sealing material 2 is molded by pressing from the opening 51a side. In this embodiment, the mold portion 51 is made of an isosceles angle material (25 mm × 25 mm) having two plate portions located at right angles, and has a bottom surface lower than the upper surface of the top plate portion 52. It is detachably provided in the concave groove 52a extending in the longitudinal direction of the top plate portion 52. The upper end of the mold portion 51 protrudes from the upper surface of the top plate portion 52. The mounting preparation workbench 5 has a structure in which the mold portion 51 is simply placed in the concave groove 52a, and the mold portion 51 has a simple structure in which the mold portion 51 is not fastened to the top plate portion 52 side by a clamp or the like. .. Further, due to such a structure, the mold portion 51 can be horizontally moved in the concave groove 52a in the length direction of the top plate portion 52.

The total length of the mounting preparation workbench 5 excluding the mold portion 51 is, for example, about 300 mm. In this embodiment, two types of isosceles angle members are used as the mold portion 51, the total length of one isosceles angle member is 400 mm, and the total length of the other isosceles angle member is 550 mm. The 400 mm long isosceles angle material is for an external hood having an outer diameter of the tubular portion 11a of 100 mm, and the 550 mm long isosceles angle material is for an external hood having an outer diameter of the tubular portion 11a of 150 mm. The isosceles angle material is made of a resin material (polyvinyl chloride or the like).

The width of the top plate portion 52 is, for example, about 164 mm. In this embodiment, the top plate portion 52 arranges a vertically elongated square pipe (27 mm × 50 mm, etc.) having a vertically rectangular cross section so as to sandwich a square pipe (30 mm × 30 mm, etc.) having a square cross section from the left and right. An equilateral angle material (40 mm × 40 mm, etc.) is placed on the side surface of each vertically long square pipe so as to face the upper surface of the vertically long square pipe, and a plurality of connecting bolts 52b are attached to the above three square pipes and the above two angle materials. It has a structure in which they are penetrated and fixed to each other by fastening bolts and nuts. The square pipe, the vertically elongated square pipe, and the angle material are made of, for example, an aluminum alloy.

The support portion 53 is composed of two leg portions 53a whose base side is fixed to the lower surface of each of the vertically elongated square pipes. The width of the support portion 53 is about 215 mm, which is wider than the width of the top plate portion 52. The end side of each leg 53a is bent so as to be located below the base side, and when the end side is grounded, the lower surface side of the vertically elongated square pipe is at a predetermined height above the ground surface ( For example, it is located above (about 11 mm). Further, a magnet portion 53b having a height similar to the predetermined height is fixed to the base portion side of the leg portion 53a. The magnet portion 53b does not need to be provided over the entire length of the support portion 53, and may be provided only at both ends of the support portion 53 in the length direction.

10 (A) and 10 (B) show the work of molding the sealing material 2 by the mold portion 51 of the mounting preparation workbench 5. In this molding operation, a predetermined amount of the sealing material 2 is manually rolled into a substantially round bar shape and set in the mold portion 51 from the opening portion 51a. Then, when the sealing material 2 is stretched while being pushed by the roller 6, the sealing material 2 is formed into an isosceles triangular columnar shape according to the shape of the mold portion 51.

When the upper end of the mold portion 51 protrudes from the upper surface of the top plate portion 52, the roller 6 does not hit the top plate portion 52, and the sealing material 2 can be appropriately stretched. FIG. 12 shows a cutting ruler 7 capable of cutting a seal putty sold with an external dimension of 90 mm × 180 mm corresponding to both an outer diameter of the tubular portion 11a of 100 mm (100φ) and 150 mm (150φ). ing. The outer diameter of the tubular portion 11a is not 50 mm, and the ruler portion of φ50 (90 × 22.5) in the cutting ruler 7 is used to cut out a supplementary amount of seal putty.

Next, the mold portion 51 containing the molded sealing material 2 is removed from the mounting preparation workbench 5, and as shown in FIGS. 11A and 11B, the mounting base portion is attached to the top plate portion 52. 11 is placed, and the molded sealing material 2 peeled off from the mold portion 51 is attached to the mounting base portion 11. As described above, the sealing material 2 is attached to the upper side and the left and right vertical sides of the mounting base portion 11, and the sealing material 2 is not attached to the lower side. Further, in this attachment work, one sealing material 2 is bent in a substantially U-shape and attached to the upper side and the left and right vertical sides of the mounting base portion 11 along the rising portion 11b. Note that FIG. 11 shows a case where the external hood 1 having an outer diameter of the cylinder portion 11a of 100 mm is placed on the top plate portion 52, but the top plate portion 52 is on the outside of the cylinder portion 11a. It is also possible to place an external hood 1 having a diameter of 150 mm.

In this way, in the case of the mounting preparation workbench 5, the work of molding the sealing material 2 by the mold portion 51 and the mounting base portion 11 of the external hood 1 are placed on the top plate portion 52, and the above. Since both of the work of adhering the molded sealing material 2 to the mounting base portion 11 can be performed on the mounting preparation workbench 5, the work efficiency can be improved.

When the length of the mold portion 51 is longer than the length of the top plate portion 52 and the mold portion 51 can move horizontally in the length direction of the top plate portion 52, the sealing material 2 is molded. Since the portion where the sealing material 2 is pressed from the side of the opening 51a can be positioned on the center side of the top plate portion 52 by the horizontal movement of the mold portion 51, the pressing force on the sealing material 2 can be applied to the top plate portion. It becomes easy to receive it accurately on the center side of 52. Further, the length of the top plate portion 52 can be shortened as much as possible to reduce the weight and cost of the mounting preparation workbench 5. It is also possible to extend the sealing material 2 by fixing the position of the roller 6 and reciprocating the mold portion 51 in the horizontal direction along the concave groove 52a.

When the mold portion 51 is detachably provided in the concave groove 52a having a bottom surface lower than the upper surface of the top plate portion 52, a plurality of types of the mold portions 51 are prepared and the mold portion 51 is replaced as necessary. Will be possible. Further, by such replacement of the mold portion 51, it becomes easy to mold the sealing material 2 in a required amount without requiring any special skill. Further, even when the upper end of the mold portion 51 protrudes from the upper surface of the top plate portion 52, by removing the mold portion 51, the upper surface side of the top plate portion 52 can be flattened and the mounting base of the external hood 1 can be obtained. The portion 11 can be appropriately placed on the top plate portion 52.

When the mold portion 51 is a member having two plate portions located at right angles, the sealing material 2 can be molded into a triangular columnar shape having a substantially right triangle cross section. Then, when the sealing material 2 thus molded is attached to the peripheral portion of the mounting base portion 11 so that the slope side of the sealing material 2 faces outward from the peripheral portion of the mounting base portion 11. It is possible to prevent the sealing material 2 from protruding from the outer peripheral portion of the mounting base portion 11 while keeping the sealing material 2 in close contact with the unevenness on the design of the outer wall surface 3a.

When the mold portion 51 is made of a resin material, the molded seal material 2 can be easily peeled off from the mold portion 51 as compared with the case where the mold portion 51 is made of a metal material. The collapse can be suppressed.

When the magnet portion 53b is provided on the lower surface of the support portion 53, the mounting preparation workbench 5 can be stably placed on a pedestal or the like whose upper surface is made of metal by magnetically mounting. Further, even if the height of the mounting preparation workbench 5 itself is low, it is easy to work at an appropriate height by magnetically mounting the mounting preparation workbench 5 on a metal table having a relatively high height. become.

The mold portion 51 may be provided in a fixed state on the top plate portion 52, the mold portion 51 may be made of a member other than the isosceles angle material, and the sealing material 2 may be two. It may be molded into a triangle other than an isosceles right triangle, or even a polygon such as a quadrangle.

Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to that of the illustrated embodiment. It is possible to make various modifications and modifications to the illustrated embodiment within the same range as the present invention or within the same range.

1: External hood 2: Sealing material 3: Outer wall panel 3a: Outer wall surface 5: Mounting preparation workbench 6: Roller 7: Cutting ruler 11: Mounting base part 11a: Cylinder part 11b: Rising top 11c: Circular sealing material 12: Hood Main body 31: Sleeve 32: Circular gasket 33: Ventilation equipment 51: Mold 51a: Opening 52: Top plate 52a: Recessed groove 52b: Connecting bolt 53: Support 53a: Leg 53b: Magnet

Claims (8)

A step of adhering a clay-like sealing material to the mounting base portion and the mounting base portion of an external hood having a hood body portion supported by the mounting base portion.
Before fixing the outer wall panel to the building frame, the process of attaching the mounting base to which the sealing material is attached to the outer wall surface of the outer wall panel,
A method for attaching an external hood, which comprises a step of fixing the outer wall panel to which the external hood is attached to the skeleton of the building. In the mounting method of the external hood according to claim 1, the sealing material is molded into a triangular columnar shape having a substantially right triangle cross section, and the molded sealing material is mounted on the slope side of the sealing material from the peripheral portion of the mounting base. A method of mounting an external hood, characterized in that it adheres to the peripheral portion of the mounting base portion so as to face the outside. A mold portion that has an opening that serves as an entrance for a clay-like sealing material and that is molded by pressing the sealing material from the side of the opening.
The top plate part where both sides of the mold part are mounting surfaces,
A support part that supports the top plate part and
An installation preparation workbench characterized by being equipped with. In the mounting preparation workbench according to claim 3, the length of the mold portion is longer than the length of the top plate portion, and the mold portion can be horizontally moved in the length direction of the top plate portion. An installation preparation workbench characterized by this. The mounting preparation workbench according to claim 3 or 4, wherein the mold portion is detachably provided in a concave groove having a bottom surface lower than the upper surface of the top plate portion. The mounting preparation workbench according to any one of claims 3 to 5, wherein the mold portion is composed of a member having two plate portions located at right angles. .. The mounting preparation workbench according to any one of claims 3 to 6, wherein the mold portion is made of a resin material. The mounting preparation workbench according to any one of claims 3 to 7, wherein a magnet portion is provided on the lower surface side of the support portion.

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