JPS61146961A - Fixing jig of drain device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a fixture for fixing drainage equipment such as a drain trap, a drainage fitting, a roof drain, and a cleaning opening fitting. Furthermore, when constructing a wall, the drainage equipment is fixed on the formwork in advance, and then concrete is poured and the drainage equipment is buried in the concrete. Related to fixing jigs for drainage equipment used for

(Prior Art) Conventionally, as shown in Fig. 4, a typical fixing jig for drainage equipment used in such a construction method is a fixing seat for mounting the drainage equipment in fixing jig a. Some have a ridge C in the center that can be fitted to the bottom inner periphery of the tubular body of the drainage device with a slight gap.

Then, as shown in Fig. 5, the fixing jig a is positioned and fixed on the formwork e by driving a nail f into the formwork e through the nail hole d provided in the retracted part of the fixing jig a. Then, on the fixed seat, the concrete having the same shape as the bottom surface of the drainage device q - 1 - A flat packing h for preventing intrusion and the drainage device q are sequentially fitted into the ridge C. After positioning and placing it thereon, it was fixed on a fixed seat C using fixing means consisting of bolts i, holding plates j, etc.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional technology, since the bottom inner circumference of the drain device q is formed in a circular shape for connecting the drain pipe, The flat packing h is also formed into a ring shape with a circular inner periphery, and a crest C formed in a truncated conical or cylindrical shape is fitted to the inner periphery of the drainage device 9 and the flat packing h. Therefore, when positioning the drainage device Q and the flat packing h on the fixed seat, there is a problem in that although lateral displacement can be controlled, rotation around the peak C cannot be controlled. Ta.

Such a problem does not cause any particular inconvenience if the outer periphery of the bottom of the drainage device and the outer periphery of the corresponding flat packing are formed in a circular shape, but if these are formed in a shape other than circular. If this happens, the following inconveniences will occur.

That is, as shown in FIGS. 6 and 7, for example, the purpose is to attach a presser flange (not shown) for connecting a drain pipe (not shown) to an inner insertion part k provided on the inner periphery of the bottom of the drainage device q. If a bulge m with a screw hole 1 is provided protruding from the outer periphery of the bottom of the drainage device q, from the above problem, the bulge m and the corresponding bulge formed on the flat packing h. part n may be overlapped with a deviation in the direction of rotation about the peak part C, and in such a case, a part of the upper surface of the flat packing h is exposed, and the fixing jig a A gap O having a width equal to the thickness of the flat packing h is formed between the drain device 9 and the drainage device 9. In this state, when the drainage device q and the flat packing h are fixed on the fixing jig a and concrete is poured, the exposed surface of the flat packing h comes into contact with the concrete, so that when the concrete hardens, As a result, the flat packing h becomes difficult to remove when the formwork e is removed, and a part of the poured concrete enters the screw hole ρ from the gap 0. do,
There were cases where the screw hole 1 was solidified in a state where it was blocked.

Therefore, the present invention provides a method for placing a drainage device whose bottom outer periphery is in a shape other than a circle on a fixing jig via a flat packing having the same planar shape as the bottom surface of the drainage device. The technical problem to be solved is to provide a fixing jig with a positioning means that can restrict not only the lateral displacement between the seal and the bottom of the drainage device, but also the rotational displacement.

(Means for solving the problem) A technical means for solving the above problem is to install a drainage device with a bottom outer periphery in a shape other than a circle on a fixing seat of a fixing jig having a means for fixing the drainage device. A weir is provided on the outer periphery of the bottom of the appliance, which extends around the entire periphery and can be abutted from the outside.

(Function) After positioning and fixing the fixing jig for the drainage device according to the present invention on the formwork, the packing formed corresponding to the drainage device and the drainage device are sequentially stored in the inner circumference of the weir. When placed on the fixed seat, the seal and the bottom of the drainage device will align with each other without shifting laterally or in the direction of rotation due to the guiding action of the inner circumferential wall of the weir. are superimposed.

In such a state, if the drainage equipment and packing are fixed on the fixing seat using appropriate means and concrete is poured, the packing will not be fixed to the concrete in a surface contact state, and will be attached to the bottom of the drainage equipment. There is no possibility of concrete intrusion.

(Embodiment) Next, a first embodiment of the present invention will be described based on FIGS. A truncated conical peak 3 is provided, and a weir 4 having a trapezoidal cross section with a steeply sloped inner peripheral wall is provided on the outer peripheral edge of the crest 3 by a predetermined width, and the weir 4 has a trapezoidal cross section with a steeply sloped inner peripheral wall. The center of each side of the triangle is shaped so that it bulges out slightly, and is placed around the perimeter. The mountain portion 3 and the weir 4 are formed to correspond to the shapes of the bottom inner circumference and the bottom outer circumference of a drainage device, respectively, which will be described later.

A hole 5 is provided in the center of the mountain portion 3 and a nut 6 is fixed therein, while nail holes 7 are provided in the four corners of the fixing jig 1.
has been established.

In this embodiment, the planar shape of the fixing jig 1 is not limited to the rectangular shape shown in the figure, and the crest 3 is not essential. This is not necessary insofar as other fixing means are provided for fixing on the 2.

This embodiment is constructed as shown in -F and is constructed as follows.

First, after positioning and placing the fixing jig 1 on the formwork 8, nails 9 are driven into the nail holes 7 to fix it.

Then, the flat packing 11 and the drainage device 10 are sequentially placed on the groove portion formed between the peak portion 3 and the weir 4 in the fixing seat 2 of the fixing jig 1.

Although not shown in detail, the drain device 10 has a bulge provided with a threaded hole 13 for attaching a presser foot 7 and a flange for connecting a drain pipe to a circular insertion portion 12 provided on the inner periphery of its bottom. The portions 14 are provided at three equal intervals on the periphery of the inner insertion portion 12, so that the outer periphery of the bottom of the drainage device 10 extends over the entire periphery of the inner periphery of the layer 4. The flat packing 11 has the same planar shape as the bottom surface of the drainage device 10.

Therefore, the flat packing 11 and the drainage device 10 are guided and positioned by the inner peripheral part by the side wall of the mountain part 3 and the outer peripheral part by the inner peripheral wall of the weir 4, respectively. The bottom of the device 10 is aligned and superimposed.

Such a guiding action can also be achieved only by the inner circumferential wall of the weir 4.

Then, the flat packing 11 and the drainage device 10 are inserted into the hole 5 of the fixing jig 1. It is fixed onto the fixing jig 1 via a bolt 15 whose lower end is fixed with a nut 6 and a presser plate 16, and then concrete is poured onto the formwork 8.

Although a drain trap is used as the drain device 10 in the illustrated case, a roof drain, an above-floor cleaning spout fitting, and in more special cases, a so-called horizontal roof drain buried in the horizontal direction may also be used.

Next, a second embodiment of the present invention will be explained based on FIG. , and a flat packing formed correspondingly, the ridge 1 on the fixing seat 18 of the fixing jig 17 is
A weir 20 provided around the peripheral edge of the weir 9 is formed into a circular shape with opposing ends protruding in a specific direction.

Incidentally, in this embodiment, the structure and operation of points other than those mentioned above are the same as those of the first embodiment.

(Effect) The fixing jig for a drainage device according to the present invention prevents intrusion into the screw hole of poured concrete when positioning and fixing a drainage device having a bulge with a screw hole at the bottom via a packing. This has the effect of preventing this and making it possible to easily remove the packing after the concrete has hardened.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the first embodiment of the present invention, Fig. 2 is a vertical sectional view showing its construction state, Fig. 3 is a plan view showing the second embodiment of the invention, and Fig. 4 is a conventional FIG. 5 is a vertical cross-sectional view showing the construction state, FIG. 6 is a vertical cross-sectional view showing the problems of the conventional example, and FIG. 7 is a view taken along the line A-A in FIG. 6. . 1...Fixing jig 2...Fixing seat 4...Weir Applicant Kojima Manufacturing Co., Ltd. Agent Patent Attorney Oka 1) Hidehiko-Heku Figure 3 - Figure i Figure 5 Figure 6

Claims (1)

[Claims] A fixing jig having a means for fixing the drain device has a fixing seat, and the bottom outer circumference of the drain device has a shape other than a circle. A fixing jig for drainage equipment, characterized by having a weir that can be accessed.