JPH0234285Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a fixing structure between a toilet bowl and a tank in a tank-tight toilet bowl in which a tank is placed and fixed on the rear upper surface of the toilet bowl.

<Prior art> Conventionally, the fixing structure between the toilet bowl and the tank in this type of tank-closed toilet bowl was to vertically fix a bolt 11 to the bottom wall of tank B, as shown in FIG.
Place the bolt 11 on the rear upper surface of the toilet bowl A, insert the bolt 11 into the mounting hole b2 provided in the toilet bowl A, screw the nut 12 onto the bolt 11 from the bottom surface of the toilet bowl A, and tighten the nut 12 with a spanner or the like. Tank B and toilet bowl A were fixed by tightening with a tool to draw the bottom wall of tank B toward the top of toilet bowl A.

However, since toilet A is installed in the corner of the toilet,
With the above fixing structure, it was difficult to thread the nut 12 onto the bolt 11 on the rear lower surface of the toilet bowl A, and it was difficult to use a tool such as a spanner to tighten the nut 12, resulting in poor workability.

Therefore, it may be possible to improve workability by providing a tool engagement part on the top surface of the bolt 11 that engages with a tool such as a screwdriver, and rotating and tightening the bolt 11 from inside the tank. When engaging the tool with the tool engaging part on the top surface of the bolt 11, the tool may slip and damage the tank.
There were cases where the dew-proof layer b3 made of foamed urethane provided on the inner surface of the tank was penetrated, making it unable to perform its function.

<Problem to be solved by the invention> The problem to be solved by the invention is to improve workability without damaging the tank or the dew-proof layer on the inner surface of the tank.

<Means for solving the problem> The technical means taken by the present invention to solve the above problem is that in a tank-tight toilet where the tank is placed and fixed on the rear upper surface of the toilet bowl, A first fixing member provided upright is inserted into a mounting hole drilled in the bottom wall of the tank, and the first fixing member has a second threaded portion that is screwed into the first threaded portion cut into the first fixing member. A second fixing member provided with a gasket is screwed from inside the tank, and by tightening both of them, the bottom wall of the tank and the rear upper surface of the toilet bowl are clamped, and a tool engaging portion is provided on the upper surface of the second fixing member. , a cylindrical member is erected to surround the tool engaging portion.

<Function> In the present invention, a tool is engaged with the tool engaging portion of the second fixing member disposed inside the tank and rotated, and the cylindrical member prevents the tool from slipping.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In this embodiment, as shown in FIG. 1, a first fixing member 1 installed upright on a toilet bowl A is a bolt with a first threaded part 1a carved on its outer circumferential surface, and a second fixing member disposed inside a tank B is The member 2 has a second threaded portion 2a on its inner peripheral surface.
This is a nut with engraved on it.

Toilet bowl A has a wash water supply port a1 drilled in the upper rear surface on which tank B is mounted and fixed, and a plurality of insertion holes a2 are drilled around this wash water supply port a1, and a plurality of through holes a2 are drilled through the through holes a2. The first fixing member 1 is erected.

That is, the insertion hole a2 is formed in a circular hole shape, and the shaft portion of the first fixing member 1 is formed to have a slightly smaller diameter than the insertion hole a2, so that the first fixing member 1 can be inserted from the bottom side of the toilet bowl A. It is inserted into the insertion hole a2, and a lock nut 7 is screwed and tightened from the top side of the toilet bowl A through the washer 6 to fix it upright on the toilet bowl A.

The tank B has a wash water outlet b1 corresponding to the wash water supply port a1 of the toilet bowl A on the bottom wall, and a gasket 8 is interposed between the wash water outlet b1 and the periphery of the wash water supply port a1. At the same time, a mounting hole b2 is opened corresponding to the insertion hole a2, and the first fixing member 1 installed upright on the toilet bowl A is inserted into the mounting hole b2.

The mounting hole b2 is formed to have a slightly larger diameter than the shaft portion of the first fixing member 1, and the first fixing member 1 is loosely inserted through the mounting hole b2 and protrudes slightly into the tank B.

Then, the second fixing member 2 is screwed onto the first threaded portion 1a formed on the outer peripheral surface of the first fixing member 1 from inside the tank B.

The second fixing member 2 has a second threaded part 2a that is screwed into the first threaded part 1a carved on the lower inner circumferential surface to close the upper surface, and a collar part 2 on the outer circumferential surface of the middle part in the axial direction.
b, and the mounting hole b2 is provided on the lower surface side of the collar portion 2b.
An annular flat packing 5, which also has a larger diameter than the mounting hole b2, is attached via a larger diameter washer 4.

The second fixing member 2 has a tool engaging portion 2c on its upper surface that engages with a tool such as a screwdriver, and a metal cylindrical member 3 formed in a cylindrical shape on its upper outer circumferential surface. By press-fitting and fixing around the joint portion 2c, the tool is prevented from slipping and coming off the tool engaging portion 2c.

Furthermore, b3 in the figure is a dew-proof layer provided on the inner surface of the tank B, and is made of foamed urethane or the like.

When a tool such as a screwdriver is engaged with the tool engaging portion 2c of the second fixing member 2 and rotated and tightened, the bottom wall of the tank B is pressed and fixed against the toilet bowl A, and the flush water outlet is closed. The gasket 8 interposed between the periphery of a1 and the cleaning water supply port b1 is connected to both the above-mentioned ports a1 and b1.
The flange portion 2b of the second fixing member 2 is clamped and tightly attached to the peripheral edge of the second fixing member 2 to completely seal the portion.
A gasket 5 is tightly attached to the lower surface and the upper surface of the peripheral edge of the mounting hole b2 to seal the mounting hole b2.

Next, FIGS. 3 and 4 show other embodiments of the present invention.

In this embodiment, a so-called triangular packing having an inverted conical shape is used as the packing 5 attached to the second fixing member 2, and if the first fixing member 1 is not positioned accurately at the center of the mounting hole b2, Patsukin 5
is tilted, so even if the first fixing member 1 is not exactly located at the center of the mounting hole b2, the gasket 5 can be inserted into the mounting hole b2 by screwing and tightening the second fixing member 2.
The first fixing member 1 is inserted into the mounting hole b2 according to the biting.
The first fixing member 1 is temporarily fixed to the toilet bowl A by loosening the tightening of the lock nut 7 so that the position can be moved slightly toward the center.

In addition, since the first fixing member 1 is loosely fixed temporarily to the toilet bowl A as described above, the first fixing member 1 is fixed so that the first fixing member 1 does not rotate when the second fixing member 2 is tightened. A rotation prevention part 9 is provided in the insertion hole a2 of the toilet bowl A.

The rotation prevention part 9 has a lower half of the insertion hole a2 having a rectangular cross-section, and when the first fixing member 1 is inserted into the insertion hole a2,
A portion corresponding to the portion formed to have a rectangular cross section in No. 2 is formed to have a rectangular cross section. Further, it goes without saying that this rotation preventing portion 9 may also be provided in the first embodiment (FIG. 2).

In both of the embodiments described above, the first fixing member 1 erected on the toilet bowl A is a bolt, and the second fixing member 2 disposed inside the tank B is a nut. Alternatively, the first fixing member 1 may be a nut with a first threaded portion formed on its inner circumferential surface, and the second fixing member 2 may be a bolt with a second threaded portion formed on its outer circumferential surface.

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

Since the tool engages with the tool engaging part of the second fixing member placed inside the tank and rotates, the tightening work can be done from the top side, improving workability. Since the vertical cylindrical member prevents the tool from slipping, the tool will not slip during tightening and will not damage the tank or break through the dew-proof layer on the inside of the tank.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a fixing structure between a toilet bowl and a tank showing one embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part, and Fig. 3 is a sectional view of the main part showing another embodiment. FIG. 4 is an enlarged sectional view, FIG. 4 is a sectional view taken along - in FIG. 3, and FIG. 5 is a sectional view showing a conventional fixing structure between a toilet bowl and a tank. A...Toilet bowl, B...Tank, b2...Mounting hole,
1...First fixing member, 1a...First screw portion, 2...
...Second fixing member, 2a...Second screw portion, 2c...
Tool engaging portion, 3... cylindrical member, 5... packing.

Claims (1)

[Scope of utility model registration request] In a tank-tight toilet bowl in which a tank is placed and fixed on the rear upper surface of the toilet bowl, a first fixing member installed upright on the rear upper surface of the toilet bowl is inserted into a mounting hole drilled in the bottom wall of the tank, and the first fixing member is inserted into a mounting hole drilled in the bottom wall of the tank. A second fixing member, which has a second threaded part that is threaded into the first threaded part carved in this part and has a gasket on the lower surface, is screwed from inside the tank, and by tightening both of them, the bottom wall of the tank and the toilet bowl are connected. A toilet bowl and a tank, characterized in that the rear upper surface is clamped, a tool engaging portion is provided on the upper surface of the second fixing member, and a cylindrical member is erected so as to surround the tool engaging portion. fixed structure.