JP5738544B2 - Joint structure - Google Patents

Description

  The present invention relates to a joint structure used for a joint of a building.

  Generally, a sealing material is provided on a joint of an outer wall of a building to seal a gap generated between the members. For example, in Patent Document 1, a waterproof layer is provided to fill the joint between the overhanging portion of the parapet provided on the roof of the building and the exterior plate of the building, but here, the state where the upper end portion of the exterior plate is sandwiched Drainage hardware to hold in is provided and attached to the side of the parapet. A waterproof layer is provided between the drained metal and the overhanging portion of the parapet.

  On the other hand, a silicon-based sealing material is used to form a waterproof layer, but many sealing materials made of modified silicon or the like contain a plasticizer. In a sealing material containing a plasticizer, the plasticizer flows out and adheres to the outer wall surface due to rainwater. This lowers the hydrophilicity of the outer wall surface and makes the outer wall easily soiled (so-called water-repellent contamination).

  In particular, in a window member that is cut out from the outer wall, a horizontal joint and a vertical joint are provided along the outer shape of the window frame of the window member, but when the vertical joint is interrupted at the intersection of the horizontal joint and the vertical joint, the vertical joint is concerned. Below this area, water-repellent contamination is noticeable.

JP 2007-231659 A

  In view of the above facts, an object of the present invention is to obtain a joint structure that prevents or suppresses water-repellent contamination below the vertical joint by a sealing material.

In order to achieve the above object, a joint structure according to the invention described in claim 1 is formed between an opening formed in an outer wall material forming an outer wall of a building, and the opening is fitted into the opening. A frame member in which at least the vertical joint is sealed with an indefinite seal, and a pair of side walls is provided on the lower side of the vertical joint, and the tip side is the surface of the outer wall material. a, a water-repellent pollution means mounting piece is formed to be attached to the side surface of the extending therefrom and the frame member in the longitudinal joints above the upper end of the other of said side walls from one of the side walls with projecting from Yes.

In the joint structure according to the first aspect of the present invention, when a frame member such as a window is fitted in the opening formed in the outer wall material forming the outer wall of the building, the space between the frame member and the opening is At least the vertical joints of the joints (horizontal joints and vertical joints) provided in are sealed with an indefinite shape seal. The bottom of the vertical joints, water repellent contamination prevention means are found provided that the distal end side protrudes from the surface of the outer wall material. Further, the water repellent contamination preventing means has an attachment piece extending from one side wall, and the attachment piece is attached to the side surface of the frame member. Accordingly, since the water repellent contamination preventing means is fixed to the frame member in advance, when the frame member is fitted into the opening, the water repellent contamination preventing means is disposed at the lower corner of the opening. In this state, the joint provided between the frame member and the opening is filled with an amorphous seal, and the joint is sealed.

  Since the tip side of the water-repellent pollution prevention means protrudes from the surface of the outer wall material, the liquid (rain water, etc.) flowing along the surface of the irregular seal in the vertical joint will reach the water-repellent pollution prevention means when it reaches the water-repellent pollution prevention means. It falls through the tip of the pollution prevention means. That is, the liquid flowing along the surface of the irregular seal in the vertical joint does not flow below the vertical joint.

The joint structure according to a second aspect of the present invention is the joint structure according to the first aspect, wherein the attachment piece of the water-repellent pollution preventing means is covered with the irregular seal and is drained from the attachment piece outside the building. The main body protrudes from the joint .

In the joint structure according to the second aspect of the invention, since the draining main body portion of the water-repellent contamination preventing means protrudes from the vertical joint, the liquid (rain water, etc.) flowing along the surface of the irregular seal in the vertical joint is Upon reaching the water-repellent contamination preventing means, the water-repellent contamination preventing means falls through the draining main body. That is, the liquid flowing along the surface of the irregular seal in the vertical joint does not flow below the vertical joint.

The joint structure according to a third aspect of the present invention is the joint structure according to the first or second aspect , wherein a draining member extending from the lower frame of the frame member to the front lower portion of the vertical frame is provided. It has been.

In the joint structure according to the third aspect of the present invention, a horizontal joint portion is provided below the draining member , and the draining member is provided from the lower frame of the frame member to the lower front portion of the vertical frame. Therefore, it is possible to prevent rainwater from directly splashing on the irregular shaped seal in the horizontal joint.

As described above, according to the joint structure according to the first to third aspects, the water-repellent contamination below the vertical joint due to the sealing material can be prevented or suppressed. Moreover, since the water-repellent contamination preventing means is only fixed to the lower corner of the opening, the present frame member can be used as it is.

  According to the joint structure according to the fourth aspect of the present invention, when the frame member is fitted into the opening, a part of the third draining member is formed on the lower side of the vertical joint provided between the frame member and the opening. Is inserted, so that the workability is excellent.

It is a perspective view which shows the state before fitting the window member to which the joint structure which concerns on this Embodiment was applied in the opening part of an outer wall panel. It is a front view which shows the state by which the window member to which the joint structure which concerns on this Embodiment was applied was engage | inserted by the opening part of the outer wall panel. It is a principal part expansion perspective view which shows the state by which the window member to which the joint structure which concerns on this Embodiment was applied was engage | inserted by the opening part of the outer wall panel. It is a principal part expansion perspective view which shows the state by which the window member to which the joint structure which concerns on this Embodiment was applied was engage | inserted by the opening part of the outer wall panel, and the sealing material was filled. It is a principal part expansion perspective view corresponding to FIG. 3 which shows the modification of the joint structure which concerns on this Embodiment. It is a schematic front view of a building. It is a perspective view which shows the state before fitting the window member to which the joint structure concerning other embodiment was applied in the opening part of an outer wall panel. It is a principal part expansion perspective view which shows the state by which the window member to which the joint structure which concerns on other embodiment was applied was engage | inserted by the opening part of the outer wall panel, and the sealing material was filled into the joint.

Hereinafter, an embodiment of a joint structure according to the present invention will be described.
(Structure of joint structure)
First, the structure of the joint structure according to the embodiment of the present invention will be described.

  FIG. 6 shows a schematic front view of the building. As shown in FIG. 6, the building 10 includes a first floor portion 12, a second floor portion 14 installed on the first floor portion 12, and a roof portion 16 installed on the second floor portion 14. It is configured. An outer wall panel (outer wall material) 18 is provided on the outer periphery of the first floor portion 12, the second floor portion 14 and the roof portion 16. These outer wall panels 18 are made of a plurality of outer wall panels, for example, using siding material.

  A window member 20 is provided at the center of the outer wall panel 18 (described later), and the room can be opened and closed. Here, as shown in FIGS. 1 and 2, the window member 20 includes a sliding sash 22 and a window frame 24 provided outside the sliding sash 22, and a lower frame 24A of the window frame 24 is provided. From the surface, the draining plate 28 protrudes toward the outdoor side over the entire length of the lower frame 24A.

  The draining plate 28 has a substantially L-shaped cross section, and protrudes substantially horizontally from the surface of the lower frame 24A of the window frame 24 toward the outdoor side, and then the surface of the outer wall panel 18 toward the diagonally lower front. It is bent in the direction away from. That is, the draining plate 28 is a ridge so as to cover the surface of a horizontal joint 36 to be described later, so that rainwater is not directly applied to the horizontal joint 36.

  On the other hand, as shown in FIG. 1, a wall portion 30 containing a heat insulating material or the like is provided on the indoor side of the outer wall panel 18, but the outer wall panel 18 and the wall portion 30 are provided to provide the window member 20. Openings 18A and 30A are respectively formed. The size of the opening portion 30A of the wall portion 30 is set smaller than the opening portion 18A of the outer wall panel 18, and the inner peripheral portion of the opening portion 18A of the outer wall panel 18 and the inner peripheral portion of the opening portion 30A of the wall portion 30. There is a step between them.

  When the window frame 24 is fitted in the opening 18A of the outer wall panel 18 (and the opening 30A of the wall 30), the surface of the window frame 24 and the surface of the outer wall panel 18 are substantially flush with each other. In this state, the draining plate 28 of the window frame 24 protrudes from the surface of the outer wall panel 18.

  As shown in FIGS. 2 and 3, a joint 32 is provided between the outer peripheral surface of the window frame 24 and the inner peripheral surface of the opening 18 </ b> A of the outer wall panel 18. The joint 32 is composed of a vertical joint 34 provided along the height direction of the building and a horizontal joint 36 provided along the horizontal direction of the building, and at the intersection of the horizontal joint 36 and the vertical joint 34. The vertical joint 34 is interrupted.

  A seal member will be provided in the joint 32. As the seal member, a case where an irregular seal (wet seal) such as a sealing material is filled and a fixed seal (dry seal) such as a gasket are fitted. In some cases, at least the vertical joint 34 of the joint 32 is filled with an irregular seal.

  In the case of an irregular seal, the plasticizer or silicon oil contained in the sealing material 37 (see FIG. 4) adheres to the surface of the outer wall panel 18 due to rainwater, and the hydrophilicity of the surface of the outer wall panel 18 is lowered and easily contaminated. Resulting in. In particular, in the joint 32 provided around the window frame 24, when the vertical joint 34 is interrupted at the intersection A (see FIG. 2) of the horizontal joint 36 and the vertical joint 34, dirt on the lower portion of the vertical joint 34 becomes a problem. (So-called water-repellent contamination).

  For this reason, in this embodiment, as shown in FIGS. 1 and 3, a draining member (first draining member) 38 having a substantially U shape in front view is provided at the lower side of the vertical frame 24 </ b> B of the window frame 24. It is fixed. An attachment piece 42 extends from one side wall 40 of the draining member 38, and the attachment piece 42 is attached to a lower part of the side surface of the vertical frame 24B of the window frame 24 via a screw 44 or the like.

  Therefore, the draining member 38 is suspended from the bottom surface of the lower frame 24A of the window frame 24, but is set to a length depending on the width of the horizontal joint 36. As shown in FIG. Is inserted (inserted) into the lower corner portion 48 of the opening 18A of the outer wall panel 18 in a state in which the bottom wall 46 of the draining member 38 is fitted in the opening 18A of the outer wall panel 18. In this state, the tip end side of the draining member 38 is set to protrude from the surface of the outer wall panel 18.

  The side wall 50 facing one side wall 40 of the draining member 38 is in surface contact with the opening 18A of the outer wall panel 18, and the side wall 40 is set to be positioned below the vertical frame 24B of the window frame 24. ing. That is, the bottom wall 46 of the draining member 38 is disposed below the vertical joint 34 over the entire width direction of the vertical joint 34. Here, the side wall 40 of the draining member 38 and the mounting piece 42 are linearly connected, but the base of the mounting piece 42 is bent and the side wall 40 of the draining member 38 is provided on the window frame 24. It is preferable to arrange it below the.

(Operation and effect of joint structure)
Next, the operation and effect of the joint structure according to the embodiment of the present invention will be described.

  In the present embodiment, as shown in FIG. 1, a draining member 38 having a substantially U shape in front view is attached to the lower part of the side surface of the vertical frame 24 </ b> B of the window frame 24, and from the bottom surface of the lower frame 24 </ b> A of the window frame 24. I try to make it droop. Then, with the window frame 24 fitted into the opening 18A of the outer wall panel 18, as shown in FIG. 3, the bottom wall 46 of the draining member 38 is disposed at the lower corner 48 of the opening 18A of the outer wall panel 18 ( The tip of the draining member 38 is set so as to protrude from the surface of the outer wall panel 18. In this state, as shown in FIG. 4, the joint material 32 provided between the outer peripheral surface of the window frame 24 and the inner peripheral surface of the opening 18 </ b> A of the outer wall panel 18 is filled with a sealing material 37. 32 is sealed.

  As described above, since the front end side of the draining member 38 protrudes from the surface of the outer wall panel 18, the liquid (rain water or the like) flowing along the surface of the sealing material 37 in the vertical joint 34 reaches the draining member 38 when the draining member 38 is reached. It drops through the tip of the member 38. That is, the rainwater flowing along the surface of the sealing material 37 in the vertical joint 34 does not flow below the vertical joint 34. For this reason, the water-repellent contamination below the vertical joint 34 by the sealing material is prevented or suppressed.

  Here, since the draining member 38 is fixed in advance to the window frame 24, when the window frame 24 is fitted into the opening 18 </ b> A of the outer wall panel 18, the draining member 38 becomes the lower corner portion 48 of the opening 18 </ b> A. Therefore, workability is good. Further, since the current window member 20 can be used as it is, there is no need to change the design of the window member 20.

  Here, before fitting the window frame 24 into the opening 18A of the outer wall panel 18, the draining member 38 is previously attached to the lower side of the vertical frame 24B of the window frame 24. After fitting the window frame 24 into the portion 18A, the draining member 38 may be attached to the lower side of the vertical frame 24B of the window frame 24.

Further, as a reference example, not an embodiment of the present invention, as shown in FIG. 5, the mounting piece 42 (see FIG. 3) for fixing to the window frame 24 may be eliminated. In this case, after fitting the window frame 24 into the opening 18A of the outer wall panel 18 (or before fitting), the draining member (first draining member) 52 is placed at the lower corner 48 of the opening 18A. It is inserted and fixed to the lower corner portion 48 of the opening 18A with an adhesive or a screw.

<Other embodiments>
In the above embodiment, a draining member 38 (see FIG. 3) or a draining member 52 (see FIG. 5) is provided separately from the window frame 24, and the draining member 38 or the draining member 52 is connected to the lower corner portion 48 of the opening 18A. To be inserted into.

However, in this embodiment, the draining plate 28 provided on the lower frame 24A of the window frame 24 is used, and as shown in FIGS. 7 and 8, the lower side of the vertical frame 26B from the lower frame 24A of the window frame 24 is shown. A draining member (third draining member) 54 extending over the side is used. Note that this embodiment is not an embodiment of the present invention but a reference example.

  For this reason, when the window frame 24 is fitted into the opening 18A of the outer wall panel 18, a draining member 54 (on the lower side of the vertical joint 34 provided between the window frame 24 and the opening 18A of the outer wall panel 18 is provided. A part of the draining member 56) is inserted. That is, the draining member 54 is disposed on the lower side of the vertical joint 34. In addition, although the boundary part is shown with the continuous line so that the draining board 28 and the draining member 54 can be distinguished here, these are provided integrally as the draining member 56 actually.

  Here, an end portion of the horizontal joint 36 (a lower portion of the vertical joint 34) is provided below the draining member 54. Like the draining plate 28, the draining member 54 becomes a scissors, and the horizontal joint The end of 36 is set so that rainwater is not directly applied thereto.

  With the above configuration, water-repellent contamination below the vertical joint 34 can be prevented or suppressed. Thus, by forming the draining member 54 on the lower frame 24A of the window frame 24, it is not necessary to attach the draining member to the window frame 24 or the opening 18A of the outer wall panel 18, and workability is further improved.

  In the above description, the window portion has been described. However, any frame member that can be fitted into the opening 18A formed in the outer wall panel 18 is applicable.

10 Building 18A Opening 18 Outer wall panel (outer wall material)
24 Window frame (frame member)
28 Draining board (Draining member)
32 joints 34 vertical joints 36 horizontal joints 37 Sealing material (unfixed seal)
38 Draining member ( water repellent contamination prevention means )
42 Mounting piece 52 Draining member ( water repellent contamination prevention means )
56 Draining member ( water repellent contamination prevention means )
58 Drainer body

Claims (3)

An opening formed in the outer wall material forming the outer wall of the building;
A frame member that is fitted into the opening and at least the vertical joint of the horizontal joint and the vertical joint provided with the opening is sealed with an irregular seal;
Wherein the lower side of the vertical joint is provided comprising a pair of side walls, extending from one of said side walls to vertical joints above the upper end of the other of said side walls with the tip end side protrudes from the surface of the outer wall member and said frame Water repellent contamination preventing means formed with a mounting piece to be attached to the side surface of the member;
Joint structure with The attachment piece of the water-repellent contamination preventing means is covered with the irregular seal and a draining main body provided on the outside of the building protrudes from the joint from the attachment piece.
The joint structure according to claim 1. A draining member extending from the lower frame of the frame member to the lower front portion of the vertical frame is provided,
The joint structure according to claim 1 or 2.

Images