JPH0449347Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention relates to a water-stop anchor structure for a building opening sash. This invention relates to a water-stop anchor structure for a building opening sash that prevents the intrusion of water and supports the bottom frame of the sash itself.

(Prior art and problems) The water-stopping structure of the building opening sash provided at the boundary C between the indoor I and outdoor O is a concrete slab 30 formed by pouring concrete, as shown in the cross-sectional schematic diagram of Fig. 3. After supporting the sash lower frame 20 on the anchor reinforcing bars 10, the mortar waterproofing part 60, the urethane coating film waterproofing layer 70, and the face plate 4 were formed in sequence.
Consists of 0. A picture frame 50 or the like is attached to the interior decoration.

Normally, when forming the concrete slab 30,
Anchor reinforcing bars 10, 10, . . . are planted along the temporarily fixed step formwork (not shown). Then, place the Satsushi frame body on top of it and place the Satsushi bottom frame 2.
While ensuring the horizontal level of 0, connect the bottom surface and anchor reinforcing bar 1.
Fix the tips of 0, 10... by welding, etc. Next, waterproof mortar is filled below the lower frame 20 of the sash, around the so-called sash frame, to perform waterproof construction.

After this waterproof mortar dries, a urethane coating material is applied to carry out membrane waterproofing construction to form a face table 40 with a metal trowel finish on the outdoor side O.

In the above construction, anchor reinforcing bars 10, 10
... are planted by visual measurement using the formwork for the step as a ruler, so there may be deviations in the vertical and horizontal positions, and the anchor reinforcing bars 10, 10 ... themselves may fall down and be buried in the concrete slab 30. Sometimes.

In such a case, the anchor reinforcing bars 10, 10...
It is necessary to carry out repair works such as cutting to align the ends of the concrete slabs 10, 10, etc., and scraping the concrete slab 30 to relocate the anchor reinforcing bars 10, 10, . . . to predetermined positions.

On the other hand, the waterproof mortar and urethane coating film waterproof layer 70 prevent rainwater from entering, but since both form a wet waterproof layer, it is not possible to proceed to the next construction unless it is dried and hardened. Special curing is required to prevent the waterproof layer from breaking during this period. Furthermore, there are many other problems, such as a decrease in the waterproof function due to external influences such as temperature.

(Means for solving the problems) This invention was devised in view of the above problems.
A water stop and anchor hardware is formed by a water stop surface and multiple anchor reinforcing bars, and by installing this water stop and anchor hardware between the lower frame of the sash and the concrete slab, the anchor reinforcing bars are always kept at the specified height and horizontal position. At the same time, a so-called dry water stop surface is formed.

This eliminates the need for repair work such as scraping the concrete slab, and also eliminates the need for curing of the urethane coating waterproof layer, thereby greatly simplifying and shortening the construction process.

(Example) The water-stop anchor structure of the building opening sash of the present invention will be explained below based on the drawings.

FIG. 1 is a schematic cross-sectional view showing the lower frame portion of the building opening sash. Also, Figure 2 shows water stop/anchor hardware 1
FIG.

The water stop/anchor hardware 1 has a horizontal reinforcing bar 12 installed along the lower edge of a water stopping surface 11 made of a strip-shaped steel plate having a predetermined height and length, and anchor reinforcing bars 13 of a predetermined length. They are installed at predetermined intervals in a state perpendicular to the reinforcing bars 12. In other words, the water stop/anchor hardware 1 has a water stop surface 11 made of a strip steel plate above it, and an anchor reinforcing bar 1 below it.
The lower ends of 3, 13... extend into a comb shape.

In order to install a building opening sash using such a water stop/anchor hardware 1, first, the horizontal reinforcing bar 12 of the water stop/anchor hardware 1 is placed on a slab top reinforcement (not shown) and held at a predetermined height. Next, concrete is poured on the slab formwork to form concrete slab 3.
form. Normally, the lower end of the water stop surface 11 is poured so that it is approximately 20 mm deep from the top surface of the concrete slab 3. After the concrete slab 3 has hardened, the lower frame 2 of the sash is placed from above, and the anchor reinforcing bars 1 are installed.
3, 13... are brought into contact with the protruding piece 21 and welded. As described above, the anchor reinforcing bars 13, 13, . Also, anchor reinforcing bars 13, 13...
The upper ends of each of the anchor reinforcing bars 13, 13 are also formed substantially flush with the upper edge of the water stop surface 11, so that the anchor reinforcing bars 13, 13 protrude.
Therefore, the lower frame 2 of the sash can be easily and horizontally welded.

In such a state, waterproof mortar is filled between the lower frame 2 of the sash and the concrete slab 3, and a face plate 4 is formed on the outdoor side O using this waterproof mortar.

Therefore, the boundary C between the outdoor side O and the indoor side I is divided by the water stop surface 11 of the water stop and anchor hardware 1, and even if rainwater etc. intrudes from the outdoor side O through the surface stand 4, the water stop plate 11 will prevent water from entering. Intrusion into the indoor side I is prevented. Note that interior fittings such as a picture frame 5 are attached to the indoor side I as necessary.

(Effects) Since the present invention has the above-mentioned configuration, when installing the opening sash, the supporting anchor reinforcing bars are erected with high dimensional accuracy, making it extremely easy to install the sash frame, and it is also possible to correct the position of the anchor reinforcing bars themselves. No rework required.

By erecting water-stop and anchor metal fittings, the water-stop surface reliably separates indoor and outdoor areas, so there is no need to form a separate waterproof layer, which shortens the construction period and reduces construction costs.

Water stop/anchor hardware is made by integrally forming a water stop surface, horizontal reinforcing bars, and anchor reinforcing bars, and if manufactured in advance in a factory, etc., it will have excellent strength and quality, and will ultimately have a water stop function and an anchor function. It becomes possible to make it work reliably.

[Brief explanation of the drawing]

Fig. 1 is a schematic cross-sectional view showing the water stop anchor structure of the building opening sash according to the present invention, Fig. 2 is a perspective view of the water stop and anchor hardware, and Fig. 3 is a cross section of the lower part of the conventional building opening sash. It is a schematic diagram. 1...Water stop/anchor hardware, 11...Water stop surface,
12...Horizontal reinforcing bar, 13,13...Anchor reinforcing bar,
2... Lower frame of Satsushi, 3... Concrete slab, 4... Face table, C... Boundary part, I... Indoor side,
O...Outdoor side, 60...Mortar waterproof part, 70...
...Urethane coating waterproof layer.

Claims (1)

[Scope of Claim for Utility Model Registration] A water stop/anchor hardware consisting of a water stop surface and a plurality of anchor reinforcing bars is arranged between the lower frame of a building opening sash and a concrete slab, the water stop/anchor hardware comprising a water stop surface and a plurality of anchor reinforcing bars. In this method, the water stop surface is formed by a steel strip, anchor reinforcing bars are attached to the lower edge of the steel strip at appropriate intervals with protrusions, and transverse reinforcing bars are fixed approximately perpendicularly to the protruding portions of the anchor reinforcing bars. The upper end of the anchor reinforcing bar is fixedly supported by the lower frame, and the water stop surface extends in the longitudinal direction of the lower frame with the protruding portion of the anchor reinforcing bar and the horizontal reinforcing bar buried in the concrete slab. A water-stop anchor structure for building opening satsushi, which is characterized by being erected over a long distance.