JPS6346597Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fixing structure for a roof drain installed on the balcony or external corridor of an apartment complex.

[Conventional technology and its problems]

First, a conventional roof drain fixing structure will be explained, thereby clarifying the purpose of the present invention.

Fig. 1 is a longitudinal side view showing a conventional example, in which 1 is a formwork plywood serving as a floor formwork, 2 is a roof drain fixed on this formwork plywood 1, and this roof drain 2 is an upper cylinder. Body portion 2a and this upper cylindrical body portion 2a
It consists of a combination of pipes 2b for level adjustment into which the lower ends of the pipes 2b are fitted.

In order to fix such a roof drain 2 on the formwork plywood 1, a flange 3 is provided horizontally on the outer side of the lower end of the upper cylinder part 2a, and a nail is driven from the upper part of the flange 3, so that the lower part of the roof drain 2 is nailed to the formwork plywood 1. On the other hand, a Styrofoam board 4 is placed on the top surface of the roof drain 2, and the Styrofoam board 4 and the formwork plywood 1
A bolt 5 is passed through the bolt 5 so as to be clamped from above and below, and a nut 6 and a wing nut 7 are attached to the ends of the bolt 5 and tightened. In addition, 8 in the figure shows the metal formwork for the drainage gutter.

In such a conventional method, nailing to the formwork plywood 1 is not done by directly joining the flange 3 to the plywood 1, which is unstable, and there is a risk of wobbling when concrete is poured around the plywood. Further, it was very troublesome to position the drain core by passing the lower end of the bolt 5 through the plywood 1.

As a solution to the above-mentioned drawbacks,
As seen in Japanese Patent No. 4592, there is also a system that uses a plate that fits into the lower end of the roof drain, nails this plate to a formwork, and then installs the roof drain by fitting it into the frame.

According to this, the roof drain can also be positioned by positioning the dish, which is convenient.

However, the method disclosed in Japanese Utility Model Publication No. 47-4592 only takes into consideration the fixing of the lower part of the roof drain, and does not take into account the fixing of the upper part at all.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
By making improvements to the conventional example above, it is possible to fix the roof drain from above and below so that it does not move during concrete pouring, and it is also possible to link it with metal formwork for drainage ditches and drainage basin hardware, making it possible to treat rainwater. The purpose of the present invention is to provide a fixing structure for a roof drain that can streamline the overall formwork.

[Means for solving problems]

In order to achieve the above object, the present invention has a circumferential flange that stands up vertically, an appropriate number of holes for draining water and holes for nailing at the bottom, and a threaded part for the end of the bolt at the center of the inside of the bottom. The metal plate provided with the metal plate is nailed onto the slab formwork using the nailing hole, the lower end of the roof drain is fitted to the upper end of the circumferential flange of the metal plate, and the screw at the bolt end of the metal plate is Drainage basin hardware in which a bolt whose lower end is screwed into the entry part is passed through the inside of the roof drain, raised vertically so that the upper part protrudes, and the side part is clipped to the metal formwork for the drain gutter at the upper end of the roof drain. The gist is that the upper end of the bolt is protruded through the drainage basin hardware, and is tightened with a nut.

[Effect]

According to the present invention, the lower end of the roof drain is fitted with a metal plate that is nailed to the formwork, and the upper end is held in place by a drainage box metal fitting via bolts rising from the metal plate.

Moreover, since this drainage basin hardware is connected to the metal formwork for the drainage gutter, the roof drain,
A comprehensive formwork for water treatment is obtained, which is a series of combinations of metal formwork for drainage basin hardware and drainage ditches.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a longitudinal sectional side view showing an embodiment of the fixing structure of the present invention, and FIG. 3 is a perspective view of a metal plate used in the present invention.

As shown in FIG. 3, the metal dish 10 has a vertically rising circumferential flange 10a, and a bottom plate 10b thereof.
An appropriate number (four in the figure) of holes 11 for nailing and an appropriate number (two in the figure) of holes 12 for draining water were bored in the case.

Further, a threaded portion 13 into which the end of a bolt (to be described later) is inserted is provided toward the inside of the central portion of the bottom plate 10b.
This threaded portion 13 can be easily formed by welding a nut to the bottom plate 10b, but as another example, a protrusion is provided integrally with the bottom plate 10b and a thread groove is formed there.

The diameter of this metal plate body 10 is determined to match the inner diameter of the lower end of the roof drain 2.

Next, the case of assembling the formwork will be explained.

Put out the drain core on the surface of the formwork plywood 1 on the floor. At that time, raise the drain core on the floor directly below and check for misalignment. Next, the metal plate body 10 is placed on the formwork plywood 1 in alignment with the core, and nailed through the holes 11.

Drain hole 1 for drainage in plywood 1 through hole 12
4 and connect the lower end of the pipe 2b for adjusting the lower level of the roof drain 2 to the flange 1 of the metal plate body 10.
Fits on the outside of 0a.

After fixing the lower end of the roof drain 2 on the formwork plywood 1 through the metal plate 10 in this way,
The lower end of the fully threaded bolt 5 is screwed into the threaded part 13 of the fixing hardware 10, raised vertically, passed through the inside of the roof drain 2, and the upper end is inserted into the roof drain 2.
protrude beyond the top of the A drainage basin hardware 15 is placed on the upper surface of the upper cylindrical body part 2a of the roof drain 2,
The upper end of the bolt 5 is made to protrude from below the drainage basin hardware 15 and is tightened with a wing nut 7.

On the other hand, as shown in FIG. 4, the drainage basin hardware 15 has its side part joined to the side part of the metal formwork 8 for the drainage gutter, and the two are fastened together with a U clip 16 or the like.

When demolding the concrete after hardening, remove the wing nuts 7 from the bolts 5, uncouple the metal formwork 8 for the drainage gutter and the drainage basin metal fittings 15, peel off the drainage basin metal fittings 15 with a crowbar, and remove the bolts 5. If it is pulled out from the screwed part 13, the fixing hardware 10 will come off together with the formwork plywood 1, so remove the nail from the plywood 1 and use it elsewhere.

[Effect of idea]

As described above, the fixing structure of the roof drain of the present invention is such that the lower end of the roof drain is fitted with a metal plate that is firmly attached to the floor formwork using nails.
The upper end is held in place by a drainage basin hardware that is tightened with bolts from the metal plate, so the roof drain is firmly fixed from above and below, and as a result, the roof drain does not wobble during concrete pouring. .

Furthermore, since there is no need to pass tightening bolts through the formwork like in the past, roof drains can be fixed simply and quickly. Also, these bolts can be used to fix drainage basin hardware, allowing rainwater to drain away. It is possible to comprehensively and rationally perform the processing framework as a whole.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing a conventional roof drain fixing structure, Fig. 2 is a longitudinal side view showing an embodiment of the fixing structure of the present invention, and Fig. 3 is a perspective view of a metal dish used in the present invention. , FIG. 4 is a perspective view showing how the drainage basin hardware is attached. 1...Form plywood, 2...Roof drain, 2a
... Upper cylinder part, 2b ... Pipe for level adjustment, 3 ... Flange, 4 ... Styrofoam plate,
5... Gold screw bolt, 6... Nut, 7... Wing nut, 8... Metal formwork for drainage gutter, 10... Metal dish body, 10a... Circumferential flange, 10b... Bottom plate, 11... Hole for nailing, 12... Hole for draining water,
13...Threaded part, 14...Drain hole, 15...Drainage basin hardware, 16...U clip.

Claims (1)

[Scope of utility model registration request] A metal dish body with a circumferential flange that stands up vertically, an appropriate number of drainage holes and holes for nailing in the bottom, and a threaded part for the end of the bolt inside the bottom is placed on the slab formwork. The lower end of the roof drain is fitted into the upper end of the circumferential flange of the metal plate body, and the bolt whose lower end is screwed into the threaded part of the bolt end of the metal plate body is attached to the roof drain. Penetrate the inside of the drain and stand up vertically so that the upper part protrudes, and place a drainage basin metal object whose side part is clipped to the metal formwork for the drainage gutter on the upper end of the roof drain, and attach the upper end of the bolt to the drainage gutter. A fixing structure for a roof drain characterized by protruding through and protruding from a metal fitting and tightened with a nut.