JP5666841B2 - Waterproof structure between exterior materials - Google Patents

Description

  The present invention relates to a waterproof structure between exterior materials on upper and lower floors attached to a framework of a building unit.

The unit type building is built by combining a plurality of building units produced in advance at a factory at a construction site. This building unit is provided with a frame formed by four columns standing at four corners and four upper beams and lower beams connecting the upper ends and lower ends of these columns. It is formed by attaching an outer wall, an inner wall, a ceiling material, a floor material, etc. to the framework.
As the outer wall, a relatively thick outer wall made of lightweight cellular concrete is generally used. The thing of patent document 1 is known as an example of the waterproof structure between the outer walls of the building unit arrange | positioned at the upper and lower floors. This waterproof structure has a structure in which a backup material and a caulking material are provided in a gap between the outer wall of the lower-floor building unit and the outer wall of the upper-floor building unit. Materials may be used.

Japanese Patent Laid-Open No. 08-128111

  By the way, when connecting unit type buildings with a predetermined gap, there is a case where it is desired to make the gap as small as possible. In this case, since the outer wall made of lightweight cellular concrete is relatively thick, the outer walls may interfere with each other as they are. Therefore, when a general exterior material other than the lightweight cellular concrete outer wall is used as the outer wall, in the waterproofing treatment using the conventional backup material and the caulking material, and further using the D-type sealing material, There is a problem that it is difficult to perform such waterproofing because there is not enough thickness to provide a backup material, a caulking material, a sealing material, and the like.

  The present invention has been made in view of the above circumstances, and when a general exterior material is attached to the framework of a building unit, waterproofing between exterior materials can be reliably performed between the exterior materials on the upper and lower floors. The challenge is to provide a structure.

In order to solve the above problems, the invention described in claim 1 is attached to the frames 13 and 13 of the building units 3 and 4 on the upper and lower floors constituting the unit building 1 as shown in FIGS. 1 and 2, for example. Waterproof structure between the upper and lower floor exterior materials 14 and 15,
An attachment metal 16 is attached to the frame 13 on the upper floor, and the exterior material 14 is attached to the attachment metal 16 with a predetermined interval between the frame 13 and
A curtain plate member 20 is disposed between the upper and lower exterior members 14 and 15, and an upper portion of the curtain plate member 20 is attached to a lower portion of the attachment hardware 16, so It is attached to the lower end of the exterior material 14 on the floor,
The curtain plate member 20 includes a curtain plate body 21 having a U-shaped cross section disposed between the upper and lower exterior members 14 and 15, a fixed plate 22 extending upward from the upper piece 21a of the curtain plate body 21, An extension plate 23 extending from the lower piece portion 21b of the curtain plate main body 21 toward the frame side;
The fixing plate 22 is fixed to the lower part of the mounting hardware 16, and the extension plate 23 is fixed to the lower surface of the framework 13 of the building unit 3 on the upper floor,
An elastic waterproof material 25 is provided between the lower part of the curtain plate member 20 and the exterior material 15 on the lower floor.

According to the first aspect of the present invention, the curtain plate member 20 is disposed between the upper and lower floor exterior members 14 and 15, and the upper portion of the curtain plate member 20 is attached to the lower end of the upper floor exterior member 14. Since the elastic waterproof material 25 is provided between the lower part of the curtain plate member 20 and the lower floor exterior material 15, the space between the upper and lower floor exterior materials 14 and 15 can be covered by the curtain plate member 20. At the same time, waterproofing between the curtain plate member 20 and the lower-layer exterior material 15 can be performed by the elastic waterproof material 25.
Therefore, when the relatively thin general exterior materials 14 and 15 are attached to the frames 13 and 13 of the building units 3 and 4, the waterproof treatment between the upper and lower exterior materials 14 and 15 can be reliably performed.

Further , the mounting hardware 16 is attached to the upper-frame frame 13, and the upper-floor exterior material 14 is attached to the mounting hardware 16 at a predetermined interval between the framework 13 and the exterior material 14 and the framework 1. A ventilation space that goes up and down can be secured.
Further, since the upper part of the curtain plate member 20 is attached to the lower part of the exterior material 14 on the upper floor via the attachment hardware 16 by being attached to the lower part of the attachment hardware 16, Compared with the case where the upper part is directly attached to the lower end part of the exterior member 14, it can be more reliably attached.

Further , since the fixing plate 22 of the curtain plate member 20 is fixed to the mounting hardware 16 and the extension plate 23 is fixed to the lower surface of the framework 13 of the building unit 3 on the upper floor, the space between the upper and lower exterior materials 14 and 15 is increased. It is possible to securely fix the curtain plate body 21 arranged in the.
Further, since the curtain plate member 20 can be fixed in advance to the lower part of the upper floor building unit 3, the curtain board member 20 can be attached to the upper and lower floors only by installing the upper floor building unit 3 in the lower floor building unit 4. Can be easily disposed between the outer packaging materials 14 and 15.

The invention according to claim 2 is the waterproof structure between the exterior materials according to claim 1 ,
The lower end portion of the mounting hardware 16 protrudes downward from the lower end portion of the upper floor exterior material 14, and the fixing plate 22 is fixed to the protruding portion 16c.

According to the second aspect of the present invention, the fixing plate 22 of the curtain plate member 20 is fixed to the projecting portion 16c of the mounting hardware 16 projecting downward from the lower end portion of the outer packaging 15 on the upper floor. The curtain plate member 20 can be easily fixed to the hardware 16.

The invention according to claim 3 is the waterproof structure between the exterior materials according to claim 1 or 2 ,
The curtain plate main body 21 protrudes forward from the surfaces of the exterior materials 14 and 15.

According to the third aspect of the present invention, since the curtain plate main body 21 protrudes forward from the surfaces of the exterior materials 14 and 15, rainwater that has flowed down the surface of the exterior material 14 on the upper floors. The curtain plate member 20 can be used as a drainer.

The invention according to claim 4 is a waterproof structure between exterior materials according to any one of claims 1 to 3 ,
A groove 21c into which a part of the elastic waterproof material 25 is inserted is formed in the lower piece 21b of the curtain plate body 21.

According to the fourth aspect of the invention, since the elastic waterproof material 25 is partially inserted into the groove portion 21c formed in the lower piece portion 21b of the curtain plate main body 21, the exterior material of the elastic waterproof material 25 is provided. 14 can be prevented from shifting in the thickness direction, and thus the waterproof property by the elastic waterproofing material 25 can be ensured.

According to the present invention, it is possible to cover the upper and lower floor exterior materials with the curtain plate member, and to perform waterproofing between the curtain plate member and the lower floor exterior material with the elastic waterproof material.
Therefore, when a relatively thin general exterior material is attached to the framework of the building unit, waterproofing between the exterior materials on the upper and lower floors can be reliably performed.

It is a figure which shows schematic structure of the unit type building provided with the waterproof structure between the exterior materials which concerns on this invention. It is side sectional drawing which shows an example of the waterproof structure between the exterior materials which concerns on this invention. It is a sectional side view which shows the principal part of the lower part of the unit type building shown in FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing a schematic configuration of a unit building 1 having a waterproof structure between exterior materials according to the present invention. A unit type building 1 shown in this figure includes a plurality of upper and lower floor building units 3 and 4 installed on a foundation 2 and a roof 5 disposed on an upper floor building unit 3. Has been. A frame 13 formed by four upper beams 11 and lower beams (floor beams) 12 for connecting the building units 3 and 4 on the upper and lower floors is provided. It is formed by attaching inner walls, ceiling materials, floor materials, etc.
The building units 3 and 4 are manufactured in advance by a factory or the like. That is, the exterior materials 14 and 15 are attached to the framework 12 in advance in a factory or the like.

The waterproof structure between the exterior materials according to the present invention is a waterproof structure between the exterior materials 14 and 15 on the upper and lower floors attached to the respective frames 13 of the building units 3 and 4 on the upper and lower floors constituting the unit building 1. is there.
As shown in FIG. 2, an attachment hardware 16 is provided between the floor beam 12 of the building unit 3 on the upper floor and the exterior material 14 on the upper floor. The mounting hardware 16 is an angle member having a substantially U-shaped cross section, and is formed long in the width direction of the exterior member 14 (direction perpendicular to the paper surface in FIG. 2). A plurality of mounting hardware 16 are provided at predetermined intervals in the width direction of the exterior material 14.

One piece portion 16a of the mounting hardware 16 is longer than the other piece portion 16b, and this one piece portion 16a is fixed to the floor beam 12 by bolts 17a and nuts 17b.
Further, the other piece 16 b of the mounting hardware 16 is in close contact with the back surface of the upper floor exterior material 14 and is fixed to the back surface with screws 18. Moreover, the lower end part of the other piece part 16b protrudes below from the lower end part of the exterior material 14 of an upper floor, and is set as the protrusion part 16c.
In this manner, the lower end portion of the upper floor exterior member 14 is attached to the floor beam 12 via the attachment hardware 16 at a predetermined interval.
In addition, the upper end part of the exterior material 14 on the upper floor is attached to the upper beam of the building unit 3 on the upper floor in the same manner by an attachment hardware similar to the attachment hardware 30 described later.

A curtain plate member 20 is disposed between the upper and lower exterior packaging materials 14 and 15. This curtain plate member 20 includes a curtain plate body 21 having a U-shaped cross section disposed between the upper and lower exterior materials 14 and 15, a fixing plate 22 extending upward from the upper piece 21 a of the curtain plate body 21, An extension plate 23 extending from the lower piece 21b of the curtain plate main body 21 toward the frame side is provided.
The curtain plate main body 21 has a vertical height smaller than the interval between the upper and lower exterior packaging materials 14, 15, with the recess on the back side of the curtain plate main body 21 facing inward and the surface facing the exterior packaging material. 14 and 15 are arranged so as to protrude slightly forward from the surface of 15. The recess on the back side of the curtain plate body 21 is filled with a heat insulating material.

The fixed plate 22 of the curtain plate member 20 is in contact with the protruding portion 16c of the mounting hardware 16, and is fixed to the protruding portion 16c with screws 24.
The extending plate 23 of the curtain plate member 20 is located below the floor beam 12 and is fixed to the lower surface of the floor beam 12. This fixing is performed in advance before the upper floor building unit 3 is installed in the lower floor building unit 2.
In addition, a groove 21c is formed in the lower piece 21b of the curtain plate body 21. The groove portion 21c is formed by bending the lower piece portion 21b into a groove shape, and extends along the longitudinal direction of the curtain plate member 20 (direction perpendicular to the paper surface in FIG. 2).
The upper half of the elastic waterproof material 25 is inserted into the groove 21c. The elastic waterproof material 25 is formed of, for example, EPDM foam. The lower surface of the elastic waterproof material 25 is elastically in close contact with the upper end surface of the lower floor exterior material 15 via the upper end protective material 15a, and the upper surface is elastically in close contact with the lower piece portion 21b. In this way, the elastic waterproofing material 25 is provided between the lower part of the curtain plate member 20 and the exterior material 15 on the lower floor, and this elastic waterproofing material 25 is the lower part of the curtain plate member 20, that is, the lower piece part. 21b and the upper end surface of the exterior material 15 are elastically adhered to each other.
A protective sheet 20 a is provided on the surface of the curtain plate member 20 from the fixed plate 22 to the upper piece 21 a of the curtain plate body 21 and the surface. The head of the screw 24 is covered with a protective sheet 20a.

Further, a heat insulating material 26 is provided between the floor beam 12 of the building unit 3 on the upper floor and the upper beam 11 of the building unit 4 on the lower floor. That is, the heat insulating material 26 is provided between the lower surface of the frame 13 of the building unit 3 on the upper floor and the upper surface of the frame 13 of the building unit 4 on the lower floor. The heat insulating material 26 is also formed of, for example, an EPDM foam, similarly to the elastic waterproof material 26. The heat insulating material 26 is elastically adhered to the lower surface of the floor beam 12 and the upper surface of the upper beam 11.
The extending plate 23 of the curtain plate member 20 is inserted between the floor beam 12 and the heat insulating material 26 and is sandwiched between the floor beam 12 and the heat insulating material 26.
A heat insulating material is provided inside the floor beam 12 and the upper beam 11, and the heat insulating material and the heat insulating material 26 are arranged so as to be continuous vertically.

An attachment hardware 30 is provided between the upper beam 11 of the building unit 4 on the lower floor and the exterior material 15 on the lower floor. The mounting hardware 30 is an angle member having a substantially U-shaped cross section, and is formed long in the width direction of the exterior member 14 (direction perpendicular to the paper surface in FIG. 2). A plurality of mounting hardware 30 are provided at predetermined intervals in the width direction of the exterior material 14.
One piece 30a of the mounting hardware 30 is shorter than the other piece 30b, and this one piece 30a is fixed to the upper beam 11 by bolts 17a and nuts 17b.
Further, the other piece 30 b of the mounting hardware 30 is in close contact with the back surface of the lower-layer exterior material 15, and is fixed to the back surface with screws 18.
In this manner, the lower end portion of the lower-layer exterior material 15 is attached to the upper beam 11 via the attachment hardware 30 at a predetermined interval.

FIG. 3 is a cross-sectional view showing the lower end of the building unit 4 on the lower floor. As shown in this figure, an attachment hardware 16 equal to the attachment hardware 16 is disposed between the floor beam 12 of the building unit 4 on the lower floor and the lower end portion of the exterior material 15 on the lower floor.
One piece 16a of the mounting hardware 16 is fixed to the floor beam 12 by bolts 17a and nuts 17b, and the other piece 16b of the mounting hardware 16 is in close contact with the back surface of the exterior material 15 on the lower floor.
In this way, the lower end portion of the lower-layer exterior material 15 is attached to the floor beam 12 via the attachment hardware 16 at a predetermined interval.

  A base drainer 31 and a fender angle 32 are disposed below the exterior material 15 on the lower floor, and these are fixed to the protruding portion 16 c of the mounting hardware 16 by screws 33. A fender mesh pipe 34 is inserted between the fender angle 32 and the upper surface of the foundation 2.

According to the waterproof structure between the exterior materials according to the present embodiment, the curtain plate member 20 is disposed between the exterior materials 14 and 15 on the upper and lower floors, and the upper portion of the curtain plate member 20 is the upper floor exterior material 14. Since the elastic waterproofing material 25 is provided between the lower part of the curtain plate member 20 and the lower floor exterior material 15 and fixed to the mounting hardware 16 attached to the lower end, the space between the upper and lower floor exterior materials 14 and 15 Can be covered by the curtain plate member 20, and waterproofing between the curtain plate member 20 and the lower-layer exterior material 15 can be performed by the elastic waterproof material 25.
Therefore, when the relatively thin general exterior materials 14 and 15 are attached to the frames 13 and 13 of the building units 3 and 4, the waterproof treatment between the upper and lower exterior materials 14 and 15 can be reliably performed.
Further, since the heat insulating material 26 is formed of EPDM foam, secondary waterproofing is ensured between the lower surface of the frame 13 of the building unit 3 on the upper floor and the upper surface of the frame 13 of the building unit 4 on the lower floor. Can be done.
Further, the mounting hardware 16 and 30 are attached to the frames 13 and 13 of the building units 3 and 4, and the exterior materials 14 and 15 are attached to the mounting hardware 16 and 30 with a predetermined interval between them. Therefore, it is possible to secure a ventilation space that extends vertically between the exterior members 14 and 15 and the frames 13 and 13.

Further, since the fixing plate 22 of the curtain plate member 20 is fixed to the mounting hardware 16 and the extension plate 23 is fixed to the lower surface of the framework 13 of the building unit 3 on the upper floor, the space between the upper and lower exterior materials 14 and 15 is increased. It is possible to securely fix the curtain plate body 21 arranged in the.
Further, since the curtain plate member 20 can be fixed in advance to the lower part of the upper floor building unit 3, the curtain board member 20 can be attached to the upper and lower floors only by installing the upper floor building unit 3 in the lower floor building unit 4. Can be easily disposed between the outer packaging materials 14 and 15.
Further, the lower end portion of the mounting hardware 16 protrudes downward from the lower end portion of the upper floor exterior material 14, and the fixing plate 22 is fixed to the protruding protrusion 16c. The member 20 can be fixed.
Further, since the curtain plate body 21 protrudes forward from the surfaces of the exterior materials 14 and 15, rainwater that has flowed down the surface of the exterior material 14 on the upper floor flows down the surface of the curtain plate body 21 and falls downward. Therefore, the curtain plate member 20 can be used as a drainer.
Further, since a part (upper part) of the elastic waterproof material 25 is inserted into the groove portion 21c formed in the lower piece portion 21b of the curtain plate main body 21, the thickness of the exterior material 14 of the elastic waterproof material 25 is increased. Therefore, the waterproof property by the elastic waterproof material 25 can be ensured.

DESCRIPTION OF SYMBOLS 1 Unit type building 3 Building unit on the upper floor 4 Building unit on the lower floor 13 Frame 14 Exterior material on the upper floor 15 Exterior material on the lower floor 16, 30 Mounting hardware 16c Protruding portion 20 Curtain plate member 21 Curtain plate body 21a Upper piece 21b Lower piece portion 21c Groove portion 22 Fixing plate 23 Extension plate 25 Elastic waterproof material

Claims (4)

A waterproof structure between the upper and lower floor exterior materials attached to the frame of the upper and lower floor building units constituting the unit type building,
An attachment hardware is attached to the framework on the upper floor, and the exterior material is attached to the attachment hardware with a predetermined interval between the framework,
A curtain plate member is disposed between the upper and lower exterior members, and an upper portion of the curtain plate member is attached to a lower portion of the attachment hardware, thereby lowering the lower end of the exterior material on the upper floor via the attachment hardware. Attached to the
The curtain plate member has a U-shaped curtain plate body disposed between the upper and lower exterior members, a fixed plate extending upward from the upper piece of the curtain plate body, and the lower piece of the curtain plate body. An extension plate extending toward the frame side from
The fixing plate is fixed to the lower part of the mounting hardware, and the extension plate is fixed to the lower surface of the framework of the building unit on the upper floor,
A waterproof structure between exterior materials, wherein an elastic waterproof material is provided between a lower part of the curtain plate member and the exterior material on a lower floor. In the waterproof structure between exterior materials according to claim 1 ,
A waterproof structure between exterior materials, wherein a lower end portion of the mounting hardware projects downward from a lower end portion of the exterior material of the upper floor, and the fixing plate is fixed to the projecting projecting portion. In the waterproof structure between the exterior materials according to claim 1 or 2 ,
The waterproof structure between exterior materials, wherein the curtain body protrudes forward from the surface of the exterior material. In the waterproof structure between the exterior material according to any one of claims 1 to 3,
A waterproof structure between exterior materials, wherein a groove portion into which a part of the elastic waterproof material is inserted is formed in a lower piece portion of the curtain plate main body.

Images