JPH0415914Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the structure of a drainage part of an opening formed in a concrete wall in a so-called concrete house.

Generally, openings in concrete walls have a structure in which the indoor side is formed horizontally to form a mounting surface for attaching a sash frame, etc., and a water return is formed on the outdoor side of the window sill, which is the lower mounting surface. It's summery.

By the way, when a sash frame or the like is attached to this mounting surface, if only the above-mentioned water return method is used, rainwater will enter the interior of the room through the gap between the sash frame and the window sill, so it is necessary to install drainage material on the bottom frame of the sash frame. In addition to attaching with screws, caulking material was filled in the gap between the top surface of the water return and the bottom surface of the water gradient piece of the water cutting material to make it waterproof.

However, the caulking material filled between the water return and the water cut slope piece may crack due to aging, and due to extreme dryness, the caulking material filled between the water return and the water cut slope piece may crack. There may be a slight gap between them. If the cracks and gaps in the caulking material are left as they are, the rainwater that has been blown in between the draining material and the water return, will pass through the caulking material through capillary development, and will be further removed from the sash frame. There was a problem in that it allowed entry into the interior of the room from between the lower frame and the window sill, impairing the durability of the internal components. Furthermore, if all of the caulking material is filled between the draining material and the water return, the amount of caulking material becomes enormous, and there is a problem that the waterproofing effect is insufficient despite the high cost.

This idea solves the above problem by placing caulking material and waterproof strip material between the water return on the window sill of the opening and the water cutter placed above it, resulting in a waterproof effect. The purpose of the present invention is to provide a drainage structure for an opening in a concrete wall that can be constructed at a low cost and can be constructed at a low cost.

This invention will be explained in detail below based on the drawings.

The drawing shows an embodiment of this invention, in which a louver sash 2 is installed in the opening A of the concrete wall 1.
is attached with its lower frame 2a in contact with the window sill 1a of the opening A. The screen door sash 3a of the screen door 3 is attached to the front end of the lower frame 2a via a mounting part 2b that projects from the front end of the lower frame 2a, and the mounting part 2b and the window sill 1a are connected to each other. A mounting piece 4a of the water cutter 4 is fitted in between.
This mounting piece 4a is attached to the front end of the lower frame 2a with screws 5, and is connected to the mounting portion 2b and the draining material 4.
The groove B formed in the horizontal direction by the above is filled with a waterproof caulking material 6 in a watertight manner.
Therefore, the mounting piece 4 in contact with the lower surface of the mounting portion 2b
Rainwater does not enter the indoor side from the upper end of a or the threaded part of the screw 5.

The draining material 4 includes the mounting piece 4a that stands up vertically, a horizontal piece 4b that is integrally connected to the mounting piece 4a and abuts the window sill 1a, and a horizontal piece 4b that extends from the horizontal piece 4b. It consists of a water cutting slope piece 4c formed to be inclined downward on the side (outdoor side), and a bent piece 4d hanging downward from the tip of this water cutting slope piece 4c. The slope of the water cutting slope piece 4c is:
It is formed so as to substantially match the slope of a water return 1b provided on the outdoor side of the window sill 1a through a step so as to be inclined forward.

A gap D is provided on the inner side of the gap C between the upper surface of the water return 1b and the lower surface of the water gradient piece 4c. It is arranged according to Further, on the outer side, a caulking material 11 is filled in a watertight manner using the waterproof band material 10 as a backup material.

That is, since the gap C between the draining material 4 and the water return 1b is filled with the caulking material 10 and the waterproof strip material 11 in order from the outer side to the inner side in a watertight manner, as in the conventional case, Karini caulking material 11
Even if a crack occurs due to changes over time, or a gap occurs between the water gradient piece 4c and the like, the elastic waterproof strip 10 made of foam sealant can prevent rainwater from leaking. Intrusion inside can be prevented more reliably.

Note that the foam sealant used in the waterproof strip 10 exhibits its waterproof effect when compressed to about 1/4, so the height of the gap C between the top surface of the water return 1b and the water cut slope piece 4c is A caulking material 1 with a height more than 4 times that of the caulking material 1
1 is used by being raised on the water return 1b, and the mounting piece 4a is attached to the lower frame 2 by pressing it from above with the water cutting slope piece 4c of the water cutting material 4.
It can be attached to the front end of a.

As explained above, this invention consists of a water return formed on the outdoor side of the window sill of an opening in a concrete wall, which slopes downwardly toward the outdoor side through a step, and a water return that is sloped downward toward the outdoor side. Between it and the draining material placed above, and on the inner side of this gap, there is a space between it and the back surface of the water return, and a width dimension larger than the width of this space is provided. The waterproof strip material provided with the waterproof strip material is arranged in a watertight manner, and on the outside of the waterproof strip material, a caulking material with a width dimension larger than the width of the waterproof strip material is used as a backup material and serves as a water return. The gap between the water cutting material and the water cutting material is filled in a water-tight manner so as to completely fill the space between the water cutting material and the water cutting material. The bent piece is vertically installed so as to cover the tip of the caulking material and is located away from the concrete wall. is arranged in a band shape from the outside of the waterproof strip material to the outer end of the water return of the concrete wall, and the water cut material has its mounting piece connected to a mounting portion protruding from the front end of the lower frame of the sash. It is fitted between the window sill and fixed by screwing from the outside of the mounting piece, and furthermore, a waterproof caulking material is applied to the groove formed horizontally by the mounting part and the drainage material. Since it is characterized by being filled in a watertight manner, it has the following excellent effects.

(a) The water return is made in advance to be an inclined surface that slopes downward toward the outdoor side, and water cutting slope pieces of water cutting material are formed parallel to this slope, and the caulking material is Since the structure is such that it is arranged in a band shape from the outside of the concrete wall to the outside edge of the water return of the concrete wall, the area sealed by the caulking material can be increased.
It is possible to enhance the waterproofing effect of the area between the water return and the draining material. In addition, both the caulking material and the prevention strip material are arranged in a wide and watertight manner in a band-like manner between the water return and the water cutting slope piece parallel to the water return, so that the caulking material can be filled. Sometimes, the caulking material can be densely filled between the water return and the water cut slope piece by a simple operation such as mounding up the caulking material on the water return and pressing it from above with the water cut slope piece. This has the advantage of improving on-site work efficiency and preventing caulking material from dripping.

(b) In addition, in the present invention, the water cutting material consists of a mounting piece, a water cutting slope piece parallel to the water return of the concrete wall, and a bent piece hanging downward from the tip of this water cutting slope piece. Since the bent piece is vertically installed to cover the tip of the caulking material and is located away from the concrete wall, even if rainwater or the like falls down the top surface of the drainage slope piece, Another advantage is that the water is drained at the tip of the bent piece, and rainwater, etc., is not transmitted to the inside of the slope piece, so the waterproofing effect is extremely good.

(c) Furthermore, with the present invention, even if the watertightness is compromised due to cracks in the caulking material, unlike conventional methods, the waterproof strip material can completely prevent rainwater from entering the room. Moreover, since the amount of expensive caulking material can be reduced and waterproofness can be improved, costs can be reduced.

(d) In addition, with this invention, the draining material can be easily installed and removed by screwing together the screws that stop the draining material, and the caulking material is placed between the draining material and the water return. Even if the waterproof strip material is damaged and needs to be repaired, this repair work can be easily carried out, which is an excellent effect.

(e) Furthermore, the position between the water return material and the water return can be adjusted by fitting the mounting piece between the mounting part protruding from the front end of the lower frame of the sash and the window sill. Since it is always held in a fixed position, the area where the caulking material and waterproof strip material are inserted can be maintained at a constant interval, making it possible to completely waterproof this area. Since it is waterproofed from the outside with caulking material, this area can be completely waterproofed.

(f) In addition, in this invention, between the water return that slopes downward toward the outdoor side and the draining material, a waterproof strip material is placed with an air gap between it and the back surface of the water return. In addition, since the caulking material is placed using this waterproof strip material as a backup material, in the unlikely event that the boundary between the water return and the caulking material and the waterproof strip material or the boundary between the drainage material and the caulking material and the waterproof strip material is Even if water flows down due to surface tension, the water supply is cut off by the air between the waterproof strip and the back of the water return, so there is no chance of water entering indoors. In addition, even if water reaches the space between the inner surface of the water return and the waterproof strip material due to surface tension, the water return is formed so that it is slanted as a whole, so it will not reach the space between the water return and the waterproof strip. Water does not accumulate and water does not enter above the water return, further enhancing the waterproofing effect.

Moreover, in the present invention, the waterproof strip material is larger than the width of the empty space, and the caulking material is larger than the width of the waterproof strip material and is filled to fill the gap, so that it is difficult for people to stand on the drain material. Even if the load is heavy, the caulking material and waterproof strip can hold the load firmly on the water return, so the water cutter can be securely attached to the bottom frame by simply screwing only the mounting piece. It also has the effect of being able to be fixed.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a drain structure showing an embodiment of this invention. 1... Concrete wall, 1a... Window sill, 1b
... Water return, 4 ... Water cutting material, 10 ... Waterproof belt material,
11...Caulking material.

Claims (1)

[Scope of utility model registration request] A water return is formed on the outdoor side of the window sill of an opening in a concrete wall through a step and slopes downward toward the outdoor side, and a draining material is placed above the water return. A waterproof belt material with a width larger than the width of this space is arranged in a watertight manner between the space and the back surface of the water return on the inner side of this space. A caulking material with a width larger than the width of the waterproof belt material is placed on the outer side of the waterproof belt material, using this waterproof belt material as a backup material, so as to fill the entire space between the water return and the drainage material. The water cutting material is filled in a watertight manner, and the water cutting material includes a mounting piece, a water cutting slope piece parallel to the water return of the concrete wall, and a bent piece hanging downward from the tip of the water cutting slope piece. The bent piece is vertically installed to cover the tip of the caulking material and is located away from the concrete wall, while the caulking material is attached to the concrete wall from the outside of the waterproof strip. The water cutting material is arranged in a band shape over the outer end of the water return of the body, and the mounting piece is fitted between the mounting part protruding from the front end of the lower frame of the sash and the window sill. It is fixed by screwing from the outside, and furthermore, the groove formed in the horizontal direction by the mounting part and the draining material is filled with waterproof caulking material in a watertight manner. Drainage structure at the opening of a concrete wall.