JP6802515B2 - Flush toilet device - Google Patents

Description

The present invention relates to a flush toilet device, and more particularly to a flush toilet device that cleans a toilet bowl with washing water supplied by a jet pump action and discharges filth.

Conventionally, as a flush toilet device that cleans a toilet bowl with wash water supplied by a jet pump action and discharges filth, for example, as described in Patent Document 1, wash water supplied from a water supply source. It is known that a tank for storing a part of the toilet bowl and supplying washing water to the toilet bowl body is installed on the upper surface of the toilet bowl body.
In such a conventional flush toilet device, since the jet pump unit that induces the jet pump action and a plurality of other related parts are built in the tank, in order to ensure the jet pump performance of the tank alone, It is desirable that the connection between the tank and the toilet body is made outside the tank.

Japanese Unexamined Patent Publication No. 2014-190065

However, in recent years, due to the diversification of flush toilet device designs and water saving, the tank is placed at a relatively low position on the rear side of the toilet body, so that the height position of the upper end of the tank is set to a low position. , So-called "low silhouette type" tanks that suppress the height of the entire flush toilet device are adopted, but for such low silhouette type tanks, the width in the front-rear direction (depth direction) and the left-right direction When trying to make a tank with a compact width (in the horizontal direction), it is inevitable to design it so as to surround the connection between the tank and the toilet body in order to reduce dead space.
In addition, in the design of the tank and the toilet body that surrounds the connection between the tank and the toilet body in this way, when the operator assembles the tank to the toilet body, the connection part between the tank and the toilet body is touched. Will not reach directly, and it will be difficult to construct by direct access of the worker, so it is necessary to indirectly connect the tank and the toilet body by some means or method, which is watertight. There is a problem that it is difficult to secure it.
Furthermore, it is possible to access the connection between the tank and the toilet bowl from the inside of the tank, but since the space inside the tank is occupied by many related parts other than the jet pump unit, the size of the tank is reduced. As the space inside the tank is small, it becomes difficult for the operator to directly access it, so it is difficult to directly perform the connection operation to ensure watertightness near the connection part in the tank. There is a problem.

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and when the tank is watertightly connected to the toilet body, the connection portion on the toilet body side and the connection portion on the tank side are connected to each other. On the other hand, the purpose is to provide a flush toilet device that can easily and watertightly connect the tank to the toilet body even when the surrounding area is covered so that the worker cannot directly access it. It is supposed to be.

In order to achieve the above object, the present invention is a flush toilet device that flushes the toilet bowl with the flush water supplied by the jet pump action and discharges the filth, and the bowl portion that receives the filth and the bowl portion. It is assembled from the upper side or the rear side to a predetermined installation position on the rear side of the bowl part of the toilet body and the toilet body provided with a water guide channel for guiding the wash water, and is supplied from the water supply source. This jet pump is a tank that stores a part of the wash water and supplies the wash water to the headrace of the toilet bowl body, and has a jet pump unit that is arranged in a state where at least a part of the wash water is submerged. The unit has a jet nozzle that injects the wash water supplied from the water supply source, and a suction port is formed at one end and an outlet that allows the wash water to flow out toward the headrace of the toilet body at the other end. The toilet is provided with a throat pipe, and the jet nozzle jets the cleaning water inward from the suction port of the throat pipe, so that the flow rate of the cleaning water flowing in the throat pipe is injected from the jet nozzle. The tank that induces a jet pump action that increases the flow rate of water and supplies the increased flow rate of wash water from the throat pipe toward the headrace of the toilet bowl, and the headrace of the toilet bowl. one end is the other end with provided integrally or separately connected to the tank, and feces body side connecting portion that form a toilet body side connecting conduit therein, provided on the front side of the tank The tank-side connection that is connected to the toilet body-side connection and forms a tank-side connection that can communicate with the toilet body-side connection, and the toilet body-side connection. Between the toilet bowl body side connection part and the tank side connection part in a state where the tank is provided at either the part or the tank side connection part and the tank is assembled from the upper side or the rear side at the predetermined installation position. the has a seal member to be connected to a watertight, and the toilet body-side connecting portion and the tank side connection unit, when connecting to a watertight said tank to said bowl body, direct operator against its surroundings The side of the tank side connection portion is covered with both a part of the toilet bowl body and a part of the tank so as to make the access impossible, and the seal member is such that the tank is the predetermined one. When assembled to the installation position from the upper side or the rear side, the tank is pushed against the toilet body side connection part, so that the tank side connection part is made into the toilet bowl main. The pushing force acting on the seal member when watertightly connecting to the body side connection portion causes the tank side connection portion which is watertightly connected to the toilet bowl body side connection portion to the toilet bowl body side connection portion. It is characterized in that it is set to be smaller than the pulling force acting on the sealing member when it is pulled out and removed.
In the thus constructed present invention, the toilet main body-side connecting portion and the tank-side connecting portion, when connecting to a watertight tank against the toilet body, the inability to direct access of the operator with respect to its surroundings Since the side of the tank side connection part is covered by both a part of the toilet bowl body and a part of the tank , the tank is located above the predetermined installation position on the rear side of the bowl part of the toilet bowl body. Or, when assembling from the rear side, the tank is pushed into the toilet bowl body side connection part by the operator, so that the tank side connection part is indirectly connected to the toilet bowl body side connection part in a watertight manner. Become. At this time, the pushing force acting on the seal member is greater than the pulling force acting on the seal member when the tank side connection part, which is watertightly connected to the toilet body side connection part, is pulled out from the toilet bowl body side connection part. Is also set to be small, so when the tank is pushed into the toilet body side connection part and the tank side connection part is watertightly connected to the toilet bowl body side connection part, a relatively small push-in The tank side connection part and the toilet body side connection part can be easily watertightly connected by force.
On the other hand, when the tank side connection part is pulled out from the toilet bowl body side connection part, a relatively large pulling force is required to prevent the tank from being unintentionally detached from the toilet bowl body. be able to.

In the present invention, preferably, the sealing member is a packing member formed in a substantially annular shape, and a flexible protrusion projecting outward in the radial direction thereof is provided on the outer peripheral surface of the packing member all around. It is formed over.
In the present invention configured as described above, if a packing member having no flexible protrusions formed on the outer peripheral surface is adopted, the tank is set to a predetermined position on the rear side of the bowl portion of the toilet bowl body. When pushing the tank into the toilet bowl body side connection part in order to assemble it to the installation position from the upper side or the rear side, if you try to push the tank in the wrong installation position, the pushing resistance at the beginning of pushing is relatively large. , The connection part on the toilet body side and the connection part on the tank side may be damaged.
On the other hand, according to the present invention, the sealing member is a packing member formed in a substantially annular shape, and protrusions protruding outward in the radial direction are formed on the outer peripheral surface of the packing member over the entire circumference. Therefore, when the tank is pushed into the toilet bowl body side connection portion, the flexible protrusion of the packing member and the toilet bowl body side connection pipe of the toilet bowl body side connection portion are connected according to the pushing amount. As the contact condition changes and the pushing amount increases, the pushing resistance gradually increases.
Therefore, when pushing the tank against the toilet bowl body side connection part, even if the tank is pushed in at the wrong installation position, the pushing resistance at the beginning of pushing is relatively small, so the toilet bowl body side connection part and the tank side connection part It is possible to prevent the toilet from being damaged and to notice that the tank was pushed in the wrong installation position before this damage.

In the present invention, preferably, a plurality of the protrusions are arranged at intervals in the axial direction of the outer peripheral surface of the packing member.
In the present invention configured as described above, since a plurality of flexible protrusions formed on the outer peripheral surface of the packing member are arranged at intervals in the axial direction of the outer peripheral surface of the packing member, the tank is placed in the toilet bowl. When pushing against the main body side connection part, the pushing force and pushing resistance at the beginning of pushing can be reduced, and the tank side connection part and the toilet bowl main body side connecting part are easily watertightly connected with a relatively small pushing force. can do.

In the present invention, preferably, the toilet bowl main body side connection portion and the tank side connection portion form a connection pipeline that communicates in the vertical direction while being connected to each other.
The flush toilet device is further provided so as to support the toilet body side connection portion in a state where the tank is assembled at the predetermined installation position from above, and the tank side connection portion to the toilet bowl body side connection portion. It has a force distribution unit that makes it possible to disperse the pushing force into the toilet.
In the present invention configured in this way, a connecting pipeline that communicates in the vertical direction with the toilet bowl main body side connection portion and the tank side connection portion connected to each other is formed, and the tank is placed at a predetermined installation position. The flush toilet device further has a force distribution part that is provided so as to support the toilet body side connection part when assembled from the upper side and can disperse the pushing force from the tank side connection part to the toilet bowl body side connection part. As a result, even if the tank-side connection is pushed downward from above with respect to the toilet body-side connection, and an excessive pushing force is applied from the tank-side connection to the toilet body-side connection, this pushing force is applied. Can be dispersed by the force distribution portion, so that it is possible to prevent the connection portion on the toilet body side from being damaged.

The present invention preferably further has a horizontal maintenance portion that allows the tank to be fixed to the toilet body so that the posture of the tank is maintained in a horizontal state.
In the present invention configured as described above, the tank is provided with respect to the toilet body by further having a horizontal maintenance portion that enables the tank to be fixed to the toilet body so that the posture of the tank is maintained in a horizontal state. Since it can be fixed stably, it is possible to prevent the tank from rattling, and the jet pump operation becomes unstable due to the movement of the tank and the fluctuation of the cleaning water level in the tank each time the cleaning operation is performed. Can be prevented.

According to the flush toilet device of the present invention, when the tank is watertightly connected to the toilet body, the surroundings of the toilet body side connection portion and the tank side connection portion are directly connected to the operator. The tank can be easily and watertightly connected to the toilet body even when it is covered inaccessibly.

It is a schematic perspective view of the flush toilet device according to the 1st Embodiment of this invention. It is an exploded perspective view of the flush toilet device according to 1st Embodiment of this invention. It is a central side sectional view seen along the line III-III of FIG. It is a front sectional view seen along the IV-IV line of FIG. It is a top view which shows the internal structure of the flush water tank apparatus in the flush toilet apparatus according to 1st Embodiment of this invention. It is a block diagram which shows the basic structure of the flush water tank apparatus of the flush toilet apparatus by 1st Embodiment of this invention. It is an enlarged view of part A of FIG. It is an enlarged view of part B of FIG. It is a rear view of the flush toilet device according to 1st Embodiment of this invention. FIG. 9 is an enlarged schematic perspective view of a fixing device for fixing the water storage tank of the flush water tank device in the flush toilet device according to the first embodiment of the present invention shown in FIG. 9 to the toilet body. It is the schematic of the fixing device which fixes the water storage tank of the flush water tank device in the flush toilet device by 1st Embodiment of this invention to a toilet body. It is a perspective view which shows the state at the time of confirming the connection state of the toilet body and the water storage tank in the flush toilet device by 1st Embodiment of this invention. FIG. 5 is a schematic cross-sectional view showing a state before the start of construction in which the water storage tank of the flush water tank device is not assembled at a predetermined installation position on the rear side of the toilet bowl body in the flush toilet device according to the first embodiment of the present invention. After the state before the start of construction shown in FIG. 13A, before the water storage tank of the flush water tank device of the flush toilet device according to the first embodiment of the present invention is assembled to a predetermined installation position on the rear side of the toilet body, the toilet body It is a schematic cross-sectional view which shows the 1st construction state in which only the spud is watertightly connected to the inflow port of the headrace. After the first construction state shown in FIG. 13B, before the water storage tank of the flush water tank device of the flush toilet device according to the first embodiment of the present invention is assembled to a predetermined installation position on the rear side of the toilet body, the toilet bowl. It is schematic cross-sectional view which shows the 2nd construction state in which the connection pipe member was watertightly connected to the spud which was watertightly connected to the inlet of the headrace of a main body. After the second construction state shown in FIG. 13C, the tank-side connection portion of the water storage tank of the flush water tank device of the flush toilet device according to the first embodiment of the present invention is watertightly connected to the connecting pipe member to store water. It is a schematic cross-sectional view which shows the 3rd construction state in which the tank was assembled from the upper side at the predetermined installation position on the rear side of the toilet body body. In the state between the second construction state shown in FIG. 13C and the third construction state shown in FIG. 13D, the lower fin portion and the upper fin portion of the fin packing of the flush toilet device according to the first embodiment of the present invention It is a schematic front sectional view which shows the state just before being inserted into the connection pipeline of a connection pipe member. Schematic front sectional view showing a state during insertion when only the lower fin portion of the fin packing of the flush toilet device according to the first embodiment of the present invention is inserted into the connecting pipe of the connecting pipe member from the state shown in FIG. 14A. Is. When both the lower fin portion and the upper fin portion of the fin packing of the flush toilet device according to the first embodiment of the present invention are inserted from the state shown in FIG. 14B to the insertion completion position in the connection pipe of the connection pipe member. It is a schematic front sectional view which shows the insertion completion state of. A diagram qualitatively showing the relationship between the insertion distance after contact and the contact resistance in the flush toilet device fin packing according to the first embodiment of the present invention, and the flush toilet device fin packing according to the first embodiment of the present invention. It is the figure which compared with the diagram which qualitatively shows the relationship between the insertion distance and contact resistance in the modification. It is the same front sectional view as FIG. 4 which shows the flush toilet device by 2nd Embodiment of this invention. FIG. 5 is a schematic perspective view of a flush toilet body in a state before the water storage tank of the flush water tank device is assembled at a predetermined installation position in the flush toilet device according to the third embodiment of the present invention as viewed from the rear side. It is an exploded perspective view of the flush toilet device according to the 4th Embodiment of this invention. FIG. 5 is a schematic cross-sectional view showing a state before the start of construction in which the water storage tank of the flush toilet device according to the fourth embodiment of the present invention is not assembled at a predetermined installation position on the rear side of the toilet body. After the state before the start of construction shown in FIG. 19A, before the water storage tank of the flush water tank device of the flush toilet device according to the fourth embodiment of the present invention is assembled from the rear side to a predetermined installation position on the rear side of the toilet bowl body. , Is a schematic cross-sectional view showing a first construction state in which only the spud is watertightly connected to the inflow port of the headrace of the toilet bowl body. After the first construction state shown in FIG. 19B, the tank-side connection portion of the water storage tank of the flush water tank device of the flush toilet device according to the fourth embodiment of the present invention is watertightly connected to the inflow port of the headrace of the toilet body. It is a schematic cross-sectional view which shows the 2nd construction state in which the water storage tank was assembled from the rear side to the predetermined installation position on the rear side of the toilet bowl body by being watertightly connected to the spud through the fin packing.

Hereinafter, a flush toilet device according to the first embodiment of the present invention will be described with reference to the accompanying drawings.
First, the basic structure of the flush toilet device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.
FIG. 1 is a schematic perspective view of a flush toilet device according to the first embodiment of the present invention, FIG. 2 is an exploded perspective view of the flush toilet device according to the first embodiment of the present invention, and FIG. 3 is an exploded perspective view. It is a central side sectional view seen along the line III-III of FIG.

First, as shown in FIGS. 1 to 3, the flush toilet device 1 according to the first embodiment of the present invention is installed in a pottery body 2 and a predetermined installation position on the rear side of the toilet body 2. It also includes a flush water tank device 4 that supplies flush water to the toilet bowl body 2. The flush toilet device 1 is, for example, a so-called water-saving flush toilet that is washed with 6.0 liters or less of washing water, preferably 3.0 liters to 4.8 liters of washing water. is there.
Next, as shown in FIG. 3, the toilet bowl main body 2 includes a bowl portion 6 provided on the front side thereof and receiving filth, and a rim portion 8 formed on the upper edge of the bowl portion 6.
Further, an inlet 10a of the drain trap pipeline 10 opens at the bottom of the bowl portion 6 of the toilet bowl body 2, and the drain trap pipeline 10 extends diagonally downward and rearward from the inlet 10a and then diagonally upward. It also extends to the rear top and then downwards to connect to a drainage socket (not shown) installed on the floor.
Further, as shown in FIG. 3, a guide for guiding the washing water supplied from the washing water tank device 4 to the bowl part 6 into the rim part 8 from the rear side to the side of the bowl part 6 of the toilet bowl body 2. A water channel 14 is formed, and a water discharge port 16 from which the washing water in the headrace 14 is discharged is formed in a part of the rim portion 6.
In the flush toilet device 1 according to the present embodiment, a form of a flush toilet that discharges filth by a drop in the height direction will be described, but the filth in the bowl portion 6 is sucked in and drained by using the siphon action. It may be a so-called siphon type toilet bowl that discharges from the trap pipeline 10 to the outside at once, or a toilet bowl of a form other than these can be applied.
Further, in the flush toilet device 1 according to the present embodiment, the drainage drained from the drain trap pipeline 10 is discharged to the drainage pipeline (not shown) under the floor, but a drainage socket (not shown) is adopted. However, a drainage socket (not shown) is used to discharge the drainage drained from the drain trap pipe 10 to the drainage pipe (not shown) on the back side of the wall behind the flush toilet device 1. It may be in the form.

Next, the washing water tank device 4 will be described in detail with reference to FIGS. 1 to 8.
FIG. 4 is a front sectional view taken along line IV-IV of FIG. 1, and FIG. 5 is a plan view showing the internal structure of the flush water tank device in the flush toilet device according to the first embodiment of the present invention. FIG. 6 is a block diagram showing a basic configuration of a flush water tank device of the flush toilet device according to the first embodiment of the present invention.
Regarding the left-right direction of the washing water tank device 4 shown in FIGS. 4 and 5, the left side in the left-right direction when viewed from the front side of the toilet bowl body 2 is the “left side”, and the left-right direction when viewed from the front side of the toilet bowl body 2 is the left-right direction. The right side is defined as "right side".

As shown in FIGS. 2 to 6, the washing water tank device 4 has a water supply pipe 18 whose upstream side is connected to a water supply source (not shown) such as a water supply, and a side rearward of the bowl portion 6 of the toilet bowl body 2. A part of the wash water supplied from the water supply source (not shown) through the water supply pipe 18 is stored in the predetermined installation space S1 of the toilet bowl body 2 from above, and the wash water is stored in the headrace 14 of the toilet bowl body 2. It is provided with a water storage tank 20 which is a tank for supplying water.
Further, as shown in FIG. 5, the water storage tank 20 is formed in a flat shape that is long in the left-right direction in a plan view, and is arranged at a relatively low position on the rear side of the toilet bowl body 2 as shown in FIG. Therefore, it is a so-called low silhouette type water storage tank in which the upper end height position of the water storage tank 20 is low.
Further, in the flush toilet device 1 of the present embodiment, when the water storage tank 20 is assembled in the predetermined installation space S1 (see FIG. 2) on the rear side of the headrace 14, the toilet body 2 is installed in this installation space. It is configured so that the water storage tank 20 must be inserted and assembled from the open upper side of S1.
In addition, in the flush toilet device 1 of the present embodiment, basically, regardless of the construction of the flush toilet device 1 at the site, the flush toilet body 2 is opened behind the bowl portion 6 at the factory. The water storage tank 20 may be inserted into the predetermined installation space S1 from above, assembled, and then installed at the site, or may be applied in various situations.

Next, as shown in FIGS. 3 to 6, a main valve 24 is provided inside the water storage tank 20 as a water supply valve for supplying and stopping the washing water supplied from the water supply pipe 18 via the constant flow valve 22. A water supply valve device 26 including the water supply valve device 26 is installed, and a jet pump unit 30 (details will be described later) connected via a vacuum break valve 28 is installed on the downstream side of the water supply valve device 26 in the water storage tank 20. There is.
Further, as shown in FIGS. 4 to 6, the washing water tank device 4 is provided on the left side of the water storage tank 20 when viewed from the front side of the toilet body 2, and is used to operate the water supply valve device 26. The operation lever 32 is provided.

Next, as shown in FIGS. 4 and 6, the jet pump unit 30 is arranged in a state where at least a part of the water storage tank 20 is submerged, and is supplied from a water supply pipe 34 extending from the vacuum break valve 28. The jet nozzle 36 for injecting the washing water is provided. Here, the vacuum break valve 28 is for sucking air from the outside so that the inside of the water supply pipe 34 from the vacuum break valve 28 to the jet nozzle 36 does not become negative pressure.
Further, as shown in FIGS. 4 and 6, the jet pump unit 30 is provided in the vicinity of the downstream side of the jet nozzle 36, and the flow path of the washing water injected from the jet nozzle 36 corresponds to the water level in the water storage tank 20. The flow path switching valve 38 for switching is provided.
Further, as shown in FIGS. 3 to 6, the jet pump unit 30 includes a throat pipe 40 having a suction port 40a formed at one end and an outlet 40b formed at the other end to allow washing water to flow out. .. As shown in FIG. 4, the throat pipe 40 has a pipe shape extending from the suction port 40a to the outlet 40b, for example, an inverted U shape (or, in other words, an inverted J shape, or an inverted J shape). It is formed in a gooseneck shape).
Further, the jet nozzle 36 is arranged so as to face the suction port 40a of the throat pipe 40, and the suction port 40a of the throat pipe 40 and the jet nozzle 36 are always submerged in the water storage tank 20. It has become.

Further, as shown in FIG. 6, the flow path switching valve 38 flows the cleaning water jet-injected from the jet nozzle 36 into the throat pipe 40 from the suction port 40a of the throat pipe 40 when cleaning the bowl portion 6 of the toilet bowl body 2. To prevent the flush water flow path 42 for flushing the toilet bowl main body 2 from the outlet 40b to the headrace 14 side and the flush water jet jetted from the jet nozzle 36 when the water storage tank 20 is stored, to flow into the throat pipe 40. In addition, it is possible to switch to any of the flow paths for tank water storage 44 directed into the water storage tank 20 outside the throat pipe 40 according to the water level in the water storage tank 20. As a result, when the flow path switching valve 38 is set in the toilet bowl cleaning flow path 42, the jet nozzle 36 jets the cleaning water from the suction port 40a of the throat pipe 40 toward the inside to throat the throat. The flush water flowing through the pipe 40 is induced to act as a jet pump to increase the flow rate of the wash water injected from the jet nozzle 36, and the increased flow rate of the wash water is discharged from the outlet 40b of the throat pipe 40 to the toilet bowl body. It is designed to be supplied toward the headrace 14 of 2.
That is, with respect to the term "jet pumping action" described in the present specification, the flow itself of the vigorous washing water injected from the jet nozzle 36 toward the suction port 40a of the throat pipe 40 is the pump or the like. A negative pressure is formed that directly draws in the surrounding washing water such as in the vicinity of the suction port 40a of the throat pipe 40 without depending on other mechanical elements, and this negative pressure is used in the throat pipe 40. It means the action of transporting the washing water in the water storage tank 20 sucked into the toilet body 2 side.

As shown in FIGS. 4 to 6, the water supply valve device 26 has the same structure and operating mechanism as the conventional ones. Therefore, a specific description thereof will be omitted, but the main valve 24 is a pilot type. The diaphragm valve of the above, which is connected to the operation lever 32 by the drive shaft 46 and can be opened and closed by the operation of the first pilot valve (not shown) which is opened and closed by the operation of the operation lever 32, and the water storage tank 26. It can be opened and closed by the operation of a second pilot valve (not shown) that is opened and closed by the vertical movement of the float 48 that moves up and down according to the water level of the washing water inside.

Next, FIG. 7 is an enlarged view of part A of FIG. 2, and FIG. 8 is an enlarged view of part B of FIG.
As shown in FIGS. 2 to 4, 7 and 8, a spud 50, which is a part of the toilet body side connection portion, is watertightly connected to the inflow port 14a on the rear side of the headrace 14 of the toilet body 2. One end of the connecting pipe member 52, which is a part of the toilet bowl main body side connecting portion, is inserted into the spud 50 from the rear side thereof and is watertightly connected.
Further, as shown in FIGS. 2 to 4, 7 and 8, the connecting pipe member 52 extends substantially horizontally from one end (front end) watertightly connected to the spud 50 to the rear side. A connecting pipe line 52a on the toilet body side, which is a bending pipe line directed upward, is formed, and the other end (upper end portion 52b) of the connecting pipe member 52 forms an opening end penetrating in the vertical direction. There is.
Further, a substantially annular fin packing 54, which is a sealing member, is watertightly connected to the upper end portion 52b of the connecting pipe member 52 in a state of being inserted into the connecting pipe line 52a on the toilet body side from above.
Further, on the inner peripheral side of the fin packing 54, a tank side connecting portion 56 integrally formed in a substantially cylindrical shape is inserted into the water storage tank 20 and is watertightly connected, and the tank side connecting portion 56 is watertightly connected. , A tank-side connecting pipeline 56a is formed inside the tank.
In the present embodiment, a mode in which the spud 50 and the connecting pipe member 52, which are the connection portions on the toilet bowl body side, are separate from the headrace 14 of the toilet bowl body 2 will be described. The form may be not limited, and the spud 50 and the connecting pipe member 52, which are the connection portions on the toilet body side, may be integrally formed with the water conduit 14 of the toilet body 2 by the same ceramic material or the like.
Further, in the present embodiment, a mode in which the fin packing 54 is adopted as a seal member provided so as to be watertightly connected between the connection pipe member 52 and the tank side connection portion 56 will be described, but as a modification, other than the fin packing A sealing member such as an annular packing or an O-ring may be used. In this case, this seal member is provided in advance between the toilet bowl body side connection portion and the tank side connection portion, such as the lower side surface of the connection port 58a of the step portion 58, and the toilet bowl body using bolts and nuts which are connection members. By tightening the connection portion between the side connection portion and the tank side connection portion from both the upper and lower sides, the toilet bowl body side connection portion and the tank side connection portion may be watertightly connected.
Further, in the present embodiment, the substantially cylindrical tank-side connection portion 56 will be described as being integrally formed with the water storage tank 20, but even if it is a tubular member separate from the water storage tank 20. Good.

Next, as shown in FIGS. 3 to 5, 7 and 8, the water storage tank 20 includes a step portion 58 integrally formed in the central portion in the left-right direction on the front side thereof. The stepped portion 58 projects from the front surface (inner front surface 20a) in the water storage tank 20 toward the rear side and extends upward from the bottom surface 20b to the side of the tubular tank side connecting portion 56 and its rear portion. It is formed so as to surround the outer peripheral portion on the side.
Further, as shown in FIGS. 3 to 5, 7 and 8, the stepped portion 58 of the water storage tank 20 is connected to the throat pipe side connecting portion 60 forming the outlet 40b of the throat pipe 40, and the tank is connected. It is provided with an upper end portion 58b formed with a connection port 58a communicating with the side connection pipeline 56a. As shown in FIGS. 4 and 5, the upper end portion 58b of the step portion 58 is assembled from above when the water storage tank 20 is assembled to a predetermined installation space S1 on the rear side of the bowl portion 6 of the toilet bowl body 2. As a watertight connection operation in which the operator watertightly connects the upper end portion 52b of the connection pipe member 52, which is the connection portion on the toilet body side, and the connection portion 56 on the tank side via the fin packing 54, it is possible to push from above to below. As such, it is located above the full water level WL0 in the water storage tank 20.
Further, as shown in FIGS. 3 to 5, 7 and 8, the water storage tank 20 is attached to the toilet body 2 for the spud 50 and the connection pipe member 52 which are the connection portions on the toilet body side, and the connection portion 56 on the tank side. On the other hand, when the parts are watertightly connected, the left and right sides and the rear side of these parts 50, 52, 56 are covered with the outer wall part 58c (see FIG. 7) of the step portion 58, and these parts 50, 52. , 56 is covered by the upper side wall portion 58d (see FIG. 7) of the step portion 58, and the front side and the lower side of these portions 50, 52, 56 are covered by the toilet bowl body 2. The periphery of these portions 50, 52, 56, that is, the front-back, up-down, and left-right directions of these portions 50, 52, 56 are covered so that the operator cannot directly access them.
In the flush toilet device 1 of the present embodiment, the step portion 58 projects from the front surface (inner front surface 20a) in the water storage tank 20 toward the rear side and extends upward from the bottom surface 20b to form a tubular shape. Since it is formed so as to surround the side of the tank side connection portion 56 and the outer peripheral portion on the rear side thereof, the side of the tank side connection portion 56 is covered by the tank 20 so that the operator cannot directly access it. However, the present invention is not limited to this form, and as another form in which the operator cannot directly access the toilet bowl, the side of the tank side connection portion 56 is a part of the toilet bowl body 2. And may be covered by both part of the tank 20.
In addition, the wording "covered" in the description "covered so that the worker cannot directly access it" in this specification is beyond the reach of the worker (inaccessible). It means that it also includes the gap of.

Further, as shown in FIGS. 3 and 4, some step portions are formed in the water storage tank 20, and in particular, the step portion 58 is among the step portions formed in the water storage tank 20. It is the only step located above the lowest water level (dead water line DWL) in the water storage tank 20.

Next, as shown in FIG. 5, since the stepped portion 58 of the water storage tank 20 is formed in the central portion of the water storage tank 20 in the front left-right direction, the water storage tank 20 is bisected in the left-right direction in a plan view. It is located on the central axis A1 that divides evenly, and is located on the front side of the central axis A2 that bisects the water storage tank 20 in the front-rear direction in a plan view.
On the other hand, as shown in FIG. 5, each of the water supply valve device 26 and the throat pipe 40 is the upper end of the step portion 58 when the water storage tank 20 is assembled from above to a predetermined installation position on the rear side of the toilet bowl main body 2. A part of the portion 58b is arranged offset to one side of the water storage tank 20 in the left-right direction so that the pushing operation can be performed from the upper side to the lower side.
More specifically, as shown in FIG. 5, the water supply valve device 26 is arranged in the water storage tank 20 on the right side of the central axis A1 that bisects the water storage tank 20 in the left-right direction in a plan view. At the same time, the water storage tank 20 is bisected in the front-rear direction in a plan view and is arranged on the rear side of the central axis A2.
Further, as shown in FIG. 5, the throat pipe 40 is arranged in the water storage tank 20 on the right side of the central axis A1 that bisects the water storage tank 20 in the left-right direction in a plan view, and is arranged in a plan view. The water storage tank 20 is arranged on the front side of the central axis A2 that bisects the water storage tank 20 in the front-rear direction.

Next, as shown in FIG. 5, the upper end portion 58b of the step portion 58 is formed in a region in one direction in the width direction to the left and right thereof, and can be pushed in without interfering with the throat pipe side connecting portion 60. A front region surface F2 formed between the region surface F1 and the throat pipe side connection portion 60 and the inner front surface 20a which is a front wall portion in the water storage tank 20 adjacent thereto and smaller than the area of the operation region surface F1. It has.
In the present embodiment, as shown in FIG. 5, the operation region surface F1 capable of being pushed in without interfering with the throat pipe side connection portion 60 is one of the left and right width directions of the upper end portion 58b of the step portion 58. Although the form formed in the directional region will be described, the form may be formed in both the left and right width direction regions of the upper end portion 58b of the step portion 58.

Next, as shown in FIG. 8, the water storage tank 20 is the toilet body 2 of each of the upper end 52b of the connection pipe member 52 which is the connection part on the toilet body side, the fin packing 54 which is the seal member, and the tank side connection part 56. In a state of being assembled from the upper side at a predetermined installation position on the rear side of the step portion 58, the step portion 58 is arranged so as to overlap each other in the vertical direction. Then, when the operation area surface F1 is pushed downward, the tank side connecting portion 56 is pushed into the toilet bowl main body side connecting pipe line 52a from the upper end portion 52b of the connecting pipe member 52 via the fin packing 54, and the fin packing 54 is connected. The watertight connection between the water storage tank 20 and the toilet body 2 is established in a state where the water storage tank 20 is inserted into the toilet bowl main body side connection pipe line 52a from the upper end portion 52b of the pipe member 52 and the insertion distance d is inserted by a predetermined insertion distance d0. It is supposed to be completed.
In the present embodiment, as an example, when the water storage tank 20 is assembled from above to the predetermined installation space S1 on the rear side of the bowl portion 6 of the toilet bowl body 2, the operator is the toilet bowl body side connection portion. An operator can operate the upper end portion 58b of the step portion 58 of the water storage tank 20 as a form capable of a watertight connection operation in which the upper end portion 52b of the connection pipe member 52 and the tank side connection portion 56 are watertightly connected via the fin packing 54. A mode in which the region surface F1 can be pushed in from above to below will be described. However, the upper end portion 52b of the connecting pipe member 52 and the tank side connecting portion 56 are fixed to each other with a fastening member or the like via a sealing member. The watertight connection operation described above may be performed by an operation other than the pushing operation.

Next, as shown in FIGS. 3, 4, and 8, the bottom surface 62 of the installation space S1 in which the water storage tank 20 is installed on the rear side of the toilet bowl body 2 has a lower side surface 52c of the bent portion of the connecting pipe member 52. A pottery force distribution portion 64 extending upward in a columnar shape to the vicinity is integrally formed.
This force distribution unit 64 is a toilet bowl main body side connection portion when the operation region surface F1 of the upper end portion 58b of the step portion 58 is pushed downward in a state where the water storage tank 20 is assembled at a predetermined installation position from the upper side. The lower side surface 52c of the bent portion of the connecting pipe member 52 is provided so as to be supportable on the toilet body 2 side, and the pushing force acting on the connecting pipe member 52 from the tank side connecting portion 56 can be dispersed.
In this embodiment, the force distribution unit 64 is integrally formed with the toilet bowl body 2, but the force distribution unit 64 may be integrally formed with the connecting pipe member 52. It may be in the form of a force distribution member that is separate from the toilet bowl main body 2 and the connecting pipe member 52.

Next, as shown in FIGS. 7 and 8, the outer peripheral surface of the fin packing 54, which is a packing member formed in a substantially annular shape, has a plurality of flexible protrusions protruding outward in the radial direction. The side fin portion 54a and the upper fin portion 54b are formed over the entire circumference. Further, a plurality of these fin portions 54a and 54b are arranged at intervals in the axial direction of the outer peripheral surface of the fin packing 54.
Further, the plurality of fin portions 54a and 54b of the fin packing 54 can reliably maintain watertightness even if the axis of the connecting pipe member 52 which is the connecting portion on the toilet bowl side and the connecting portion 56 on the tank side are deviated from each other. It has become like.

Further, as shown in FIGS. 7 and 8, the fin packing 54, which is a sealing member, is a connecting pipe member together with the tank side connecting portion 56 of the water storage tank 20 when the water storage tank 20 is assembled to a predetermined installation position from above. The tank side connecting portion 56 is watertightly connected to the connecting pipe member 52 by being pushed into the toilet bowl main body side connecting pipe 52a of 52, and the pushing force acting on the fin packing 54 at this time is the connecting pipe member. The tank-side connecting portion 56, which is watertightly connected to the 52, is set to be smaller than the pulling force acting on the fin packing 54 when the connecting pipe member 52 is pulled out and removed.

Next, FIG. 9 is a rear view of the flush toilet device according to the first embodiment of the present invention.
As shown in FIG. 9, in the flush toilet device 1 of the present embodiment, the water storage tank 20 of the washing water tank device 4 is installed in a predetermined installation space S1 on the back side and both left and right sides of the water storage tank 20. The base portion 20c is provided with a pair of fixing devices 66 that are fixing portions and horizontal maintenance portions that are fixed to the toilet bowl body 2 so that the posture of the water storage tank 20 is maintained in a horizontal state.

FIG. 10 is an enlarged schematic perspective view of a fixing device for fixing the water storage tank of the flush water tank device in the flush toilet device according to the first embodiment of the present invention shown in FIG. 9 to the toilet body, and FIG. 11 is a schematic perspective view of the present. It is a schematic diagram of the fixing device which fixes the water storage tank of the flush water tank device in the flush toilet device according to 1st Embodiment of the invention to a toilet body.
As shown in FIGS. 10 and 11, the fixing device 66 includes a rubber bush 68 inserted and attached to the mounting hole 62a on the bottom surface 62 of the installation space S1 of the water storage tank 20 on the rear side of the toilet body 2, and the water storage tank. A flexible member 70 made of a cushion or the like arranged in a long hole 20d for fixing a tank that penetrates the base portion 20c of 20 in the vertical direction, and a bolt 72 attached to a rubber bush 68 via the flexible member 70. A washer 74 that is attached to the bolt 72 and whose lower surface is in contact with the bottom surface 20b of the water storage tank 20, and a spring washer 76 that is attached to the bolt 72 and whose lower surface is in contact with the upper surface of the washer 74. I have.
Further, a bolt operating portion 78 whose lower surface is in contact with the upper surface of the spring washer 76 is integrally formed on the head (upper end portion) of the bolt 72 so as to project outward in the radial direction.
Further, the rubber bush 68 also functions as a nut into which the lower portion of the bolt 72 is screwed.
These elements 68, 70, 72, 74, 76, and 78 function as a horizontal adjusting unit that can adjust the posture of the water storage tank 20 to a horizontal state.
In this embodiment, the rubber bush 68 and the flexible member 70 are different members from each other, but both 68 and 70 may be integrally formed with each other.

More specifically, as shown in FIGS. 9 to 11, in the fixing device 66, after the water storage tank 20 is assembled at a predetermined installation position on the rear side of the toilet bowl body 2, the bolt operation unit 78 is tightened. The elastic deformation amount when the flexible member 70 is compressed in the axial direction can be adjusted according to the tightening condition of the bolt operating portion 78. The height position of the water storage tank 20 with respect to the toilet body 2 can be adjusted.
Therefore, after the water storage tank 20 is assembled at a predetermined installation position on the rear side of the toilet body 2, the height position of the water storage tank 20 is finely adjusted, for example, in a state of being fixed to the toilet body 2 by the fixing device 66. Or, when it becomes necessary to fine-tune the posture of the water storage tank 20 to a horizontal state, the bolt operation unit 78 can be used without removing the water storage tank 20 from the predetermined installation position on the rear side of the toilet bowl body 2. The height position of the water storage tank 20 can be easily finely adjusted by simply adjusting the tightening condition to adjust the deformation of the flexible member 70 and the fastening condition of the toilet bowl body 2 and the water storage tank 20 by the fixing device 66. Or, the posture of the water storage tank 20 can be easily finely adjusted to the horizontal state.
In the present embodiment, the form in which the fixing device 66 includes the flexible member 70 will be described, but the flexible member 70 may be omitted.

Further, as shown in FIG. 11, in the present embodiment, the size of the elongated hole 20d for fixing the tank in the base portion 20c of the water storage tank 20 is larger than the outer diameter of the bolt 72 and the flexible member 70 to some extent. Since it functions as a set adjustment hole, even if there is a dimensional error in the water storage tank 20 or a slight dimensional error in the pottery body 2 made of earthenware, the water storage tank 20 is moved within the range of the elongated hole 20d and positioned. Can be fine-tuned to absorb dimensional errors.

Next, FIG. 12 is a perspective view showing a state when confirming the connection state between the toilet bowl main body and the water storage tank in the flush toilet device according to the first embodiment of the present invention.
As shown in FIGS. 2 and 12, the outer front surface 20e of the water storage tank 20 is provided with a push-in depth confirmation line L1 extending in the horizontal and horizontal directions as a connection state confirmation means.
On the other hand, whether or not the line L2 extending in the horizontal and horizontal directions of the front upper edge 80 of the installation space S1 of the water storage tank 20 on the rear side of the toilet body 2 also matches the pushing depth confirmation line L1 of the water storage tank 20. It is a confirmation line L2 on the main body side of the toilet bowl for confirmation, and functions as a connection state confirmation means.
Here, in the water storage tank 20 shown in FIG. 12, after the water storage tank 20 is assembled in the predetermined installation space S1 on the rear side of the toilet bowl body 2, the tank lid 82 is attached to the water storage tank 20 on the rear side of the toilet bowl body 2. The push-in depth confirmation line L1 is parallel to the confirmation line L2 on the toilet body side and almost coincides with the height positions of both L1 and L2 before being attached to the upper end of the installation space S1 of the water storage tank. 20 is correctly installed at a predetermined installation position on the rear side of the toilet body 2.

Next, with reference to FIGS. 1 to 15, a method of installing the flush water tank device 4 of the flush toilet device 1 according to the first embodiment of the present invention at a predetermined installation position of the flush toilet body 2, and the present invention. The operation of the flush toilet device 1 according to the first embodiment will be described.
First, FIG. 13A is a schematic cross section showing a state before the start of construction in which the water storage tank of the flush toilet device according to the first embodiment of the present invention is not assembled at a predetermined installation position on the rear side of the toilet body. It is a figure.
Next, in FIG. 13B, after the state before the start of construction shown in FIG. 13A, the water storage tank of the flush water tank device of the flush toilet device according to the first embodiment of the present invention is placed at a predetermined installation position on the rear side of the toilet body. It is a schematic cross-sectional view which shows the 1st construction state in which only the spud was watertightly connected to the inlet of the headrace of the toilet body before assembling.
Further, in FIG. 13C, after the first construction state shown in FIG. 13B, the water storage tank of the flush water tank device of the flush toilet device according to the first embodiment of the present invention is placed at a predetermined installation position on the rear side of the toilet body. It is schematic cross-sectional view which shows the 2nd construction state in which the connection pipe member was watertightly connected to the spud which was watertightly connected to the inlet of the headrace of a toilet body before assembling.
Further, in FIG. 13D, after the second construction state shown in FIG. 13C, the tank-side connection portion of the water storage tank of the flush water tank device of the flush toilet device according to the first embodiment of the present invention is watertightly attached to the connecting pipe member. It is a schematic cross-sectional view which shows the 3rd construction state which the water storage tank was assembled from the upper side to the predetermined installation position on the rear side of the toilet body by being connected.
Next, FIG. 14A shows the lower side of the fin packing of the flush toilet device according to the first embodiment of the present invention in the state between the second construction state shown in FIG. 13C and the third construction state shown in FIG. 13D. It is a schematic front sectional view which shows the state just before the fin part and the upper fin part are inserted into the connection line of the connection pipe member.
Further, FIG. 14B shows a state during insertion when only the lower fin portion of the fin packing of the flush toilet device according to the first embodiment of the present invention is inserted into the connecting pipeline of the connecting pipe member from the state shown in FIG. 14A. It is a schematic front sectional view which shows.
Further, FIG. 14C shows the insertion completion position of the connecting pipe member in the connecting pipe line from the state shown in FIG. 14B when both the lower fin portion and the upper fin portion of the fin packing of the flush toilet device according to the first embodiment of the present invention are shown. It is a schematic front sectional view which shows the insertion completion state when it is inserted by.

First, as shown in FIG. 13A, before the start of construction, the operator before installing the flush water tank device 4 of the flush toilet device 1 according to the present embodiment in the predetermined installation space S1 on the rear side of the toilet body 2. Construction is started from the state, and then, as shown in FIG. 13B, the spud 50 is inserted into the installation space S1 from above. Then, by inserting the spud 50 into the inflow port 14a of the headrace 14 of the toilet body 2 from the rear side, only the spud 50 is watertightly connected to the inflow port 14a of the headrace 14 of the toilet bowl body 2. It becomes the first construction state which is the state.

Next, after the first construction state shown in FIG. 13B, after inserting the connecting pipe member 52 into the installation space S1 from above as shown in FIG. 13C, the upper end portion 52b of the connecting pipe member 52 moves upward. The front end portion 52d of the connecting pipe member 52 is inserted from the rear side into the spud 50 which is watertightly connected to the inflow port 14a of the headrace 14 of the toilet body 2 and is watertightly connected in the directed posture. As a result, the connecting pipe member 52 is in a second construction state in which the connecting pipe member 52 is watertightly connected to the spud 50, and the connecting pipe line of the connecting pipe member 52 (connecting pipe line 52a on the toilet body side) and the headrace 14 of the toilet body 2 Is in a state of communication.
Further, as shown in FIG. 13B, in the second construction state, the lower side surface 52c of the bent portion of the connecting pipe member 52 is supported from the lower side by the force distribution portion 64 of the toilet bowl main body 2.

Next, after the second construction state shown in FIG. 13C, related members such as the water supply valve device 26 and the jet pump unit 30 are pre-assembled in the water storage tank 20 of the washing water tank device 4 as shown in FIG. 13D. With respect to the water storage tank 20 in the state of being in a state of being inserted into the predetermined installation space S1 from above with the fin packing 54 attached to the lower end of the tank side connection 56, the lower end of the tank side connection 56 and the fin packing 54 are It is inserted from the upper end portion 52 of the connecting pipe member 52 into the connecting pipe line (connecting pipe line 52a on the toilet body side) of the connecting pipe member 52.
At this time, the operator manually pushes the operation area surface F1 (see FIG. 5) of the upper end portion 58 of the step portion 58 in the water storage tank 20 from above to below, thereby performing a pushing operation to connect the tank side. A state in which the lower end portion of 56 and the fin packing 54 are inserted from the upper end portion 52 of the connecting pipe member 52 into the connecting pipe line 52a on the toilet body side of the connecting pipe member 52 by a predetermined insertion distance d0 (see FIGS. 8 and 14C). Become.
As a result, as shown in FIG. 13D, the water storage tank 20 is assembled from the upper side to a predetermined installation position on the rear side of the toilet bowl main body 2, and the lower end portion of the tank side connecting portion 56, the fin packing 54, and the connecting pipe member 52. Is in the third construction state, which is watertightly connected.

By the way, FIG. 15 is a diagram qualitatively showing the relationship between the insertion distance after contact and the pushing force (contact resistance) in the fin packing of the flush toilet device according to the first embodiment of the present invention, and the first aspect of the present invention. It is a figure which compared with the diagram which qualitatively shows the relationship between the insertion distance and the pushing force (contact resistance) in the modified example of the fin packing of a flush toilet device by embodiment.
Here, the horizontal axis of FIG. 15 indicates the insertion distance d when the lower end portion of the tank side connecting portion 56 and the fin packing 54 are inserted into the upper end portion 52b of the connecting pipe member 52, and the vertical axis of FIG. When the lower end of the tank-side connecting portion 56 and the fin packing 54 are inserted into the upper end portion 52b of the connecting pipe member 52, the operation region surface F1 (see FIG. 5) of the upper end portion 58 of the step portion 58 of the water storage tank 20 is moved downward from above. Corresponds to the pushing force P when the pushing operation is performed toward, and the contact resistance when the fin portions 54a and 54b of the fin packing 54 come into contact with the connecting pipe line (toilet bowl main body side connecting pipe line 52a) of the connecting pipe member 52. It is qualitatively consistent with R.
14B and 15 are shown from the state immediately before the lower end of the tank-side connecting portion 56 and the fin packing 54 shown in FIG. 14A are inserted into the connecting pipe line (toilet bowl main body side connecting pipe line 52a) of the connecting pipe member 52. As described above, when the lower end of the tank-side connecting portion 56 and the fin packing 54 are further inserted up to the insertion distance d1, only the lower fin portion 54a of the fin packing 54 comes into contact with the inside of the toilet bowl main body side connecting pipe line 52a.
Then, as shown in FIG. 15, when the lower end portion of the tank side connecting portion 56 and the fin packing 54 are further inserted to the insertion distance d2 (> d1), both the lower fin portion 54a and the upper fin portion 54b of the fin packing 54 are inserted. Contact with the inside of the toilet bowl main body side connecting pipe line 52a is started. At this time, in the section where the insertion distance d is from d1 to d2 in FIG. 15, only the lower fin portion 54a of the fin packing 54 is in contact, so that the pushing force P and the contact resistance R are relatively gentle. The pushing force P1 and the contact resistance R1 increase almost proportionally with a gentle inclination.
After that, as shown in FIGS. 8, 14C and 15, when the lower end of the tank-side connecting portion 56 and the fin packing 54 are inserted to the maximum insertion distance d0 (> d2), the lower end of the tank-side connecting portion 56 and the fin packing 54 is inserted to the insertion completion position in the toilet body side connection pipeline 52a of the connection pipe member 52, and the insertion is completed. At this time, in the section where the insertion distance d is from d2 to d0 in FIG. 15, both the lower fin portion 54a and the upper fin portion 54b of the fin packing 54 are in contact with each other, so that the pushing force P and the contact resistance R increases to the pushing force P2 and the contact resistance R2 almost proportionally with a resistance larger than that in the state where only the lower fin portion 54a of the fin packing 54 is in contact.

Next, after the third construction state shown in FIG. 13D, as shown in FIGS. 9 to 11, the back side of the water storage tank 20 is adjusted while adjusting the tightening condition of the bolt operation portion 78 of the bolt 72 by the fixing device 66. Further, the base portions 20c on both the left and right sides are fixed to the toilet bowl main body 2 so that the posture of the water storage tank 20 is maintained in a horizontal state.
Then, as shown in FIG. 12, it is confirmed that the push-in depth confirmation line L1 is parallel to the confirmation line L2 on the toilet body side and substantially coincides with the height positions of both L1 and L2, and the water storage tank. When it is confirmed that 20 is correctly installed at a predetermined installation position on the rear side of the toilet body 2, a tank lid 82 is attached to the upper end of the installation space S1 of the water storage tank 20 on the rear side of the toilet body 2. After installation, the construction as shown in FIG. 3 is completed.

On the other hand, if it is not possible to confirm that the water storage tank 20 is correctly installed at a predetermined installation position on the rear side of the toilet bowl body 2, the posture inside the water storage tank 20 may not be horizontal, so that water is stored. By shifting the position of the water storage tank 20 within the range of the elongated hole 20d for fixing the tank at the base 20c of the water storage tank 20 without removing the tank 20 from the predetermined installation position, the water storage tank 20 in the set space S1 The rubber bush 68 can be used while adjusting the relative positions in the front-rear direction and the left-right direction with respect to the toilet body 2 and again adjusting the tightening condition of the bolt operation portion 78 of the fixing device 66 as shown in FIGS. 9 to 11. By adjusting the amount of elastic deformation of the flexible member 70, as shown in FIG. 12, fine adjustments such as adjusting the height position of the water storage tank 20 with respect to the toilet body 2 can be made until the correct installation state can be confirmed. Do.

On the other hand, in FIG. 15, as a modification of the fin packing 54 of the flush toilet device 1 according to the first embodiment of the present invention, a single flexible fin portion is provided instead of the two fin portions 54a and 54b. Since the thickness of this single fin portion is larger than the thickness of the fin portions 54a and 54b described above, the single fin portion has higher rigidity than the fin portions 54a and 54b.
Therefore, in the fin packing of the modified example, when the contact between the single fin portion and the connection pipe member 52 in the toilet body side connection pipe 52a starts, the pushing force P and the contact resistance R are reduced to the two fin portions 54a and 54b. The pushing force P2 and the contact resistance R2 can be reached at a insertion distance d3 that increases proportionally with a resistance larger than that of the fin packing 54 and is smaller than the insertion distance d2, and the insertion can be completed. ..

According to the flush toilet device 1 according to the first embodiment of the present invention described above, when the connecting pipe member 52 and the tank side connecting portion 56 watertightly connect the water storage tank 20 to the toilet body 2, the surroundings thereof. However, when the water storage tank 20 is assembled from above to a predetermined installation position on the rear side of the bowl portion 6 of the toilet bowl body, the water storage tank 20 is covered by the worker so that it cannot be directly accessed by the worker. When the tank 20 is pushed into the connecting pipe member 52, the tank side connecting portion 56 is indirectly and watertightly connected to the connecting pipe member 52. At this time, the pushing force P acting on the fin packing 54 is more than the pulling force acting on the fin packing 54 when the tank side connecting portion 56 watertightly connected to the connecting pipe member 52 is pulled out from the connecting pipe member 52 and removed. Is set to be small, so that when the water storage tank 20 is pushed against the connecting pipe member 52 and the tank side connecting portion 56 is watertightly connected to the connecting pipe member 52, it is relatively small. The tank-side connecting portion 56 and the connecting pipe member 52 can be easily watertightly connected by the pushing force P.
On the other hand, when the tank side connecting portion 56 is pulled out from the connecting pipe member 52 and removed, a relatively large pulling force is required, so that the water storage tank 20 is unintentionally disconnected from the toilet bowl body 2. You can prevent that.

Further, according to the flush toilet device 1 according to the present embodiment, if a packing member having no flexible protrusions (fins) formed on the outer peripheral surface is adopted, the water storage tank 20 is used as the toilet body. When pushing the water storage tank 20 against the connecting pipe member 52 in order to assemble it from above to the predetermined installation space S1 on the rear side of the bowl portion 6 of 2, let's push the water storage tank 20 at the wrong installation position. Then, the pushing resistance at the beginning of pushing is relatively large, and the connecting pipe member 52 and the tank-side connecting portion 56 may be damaged.
On the other hand, according to the flush toilet device 1 according to the present embodiment, the fin portions 54a and 54b protruding outward in the radial direction are provided on the outer peripheral surface of the fin packing 54 formed in a substantially annular shape over the entire circumference. Due to the formation, when the water storage tank 20 is pushed into the connecting pipe member 52, the flexible fin portions 54a and 54b of the fin packing 54 and the connecting pipe member 52 are connected to the toilet body side according to the pushing amount. As the contact condition with the pipeline 52a changes and the pushing amount (insertion distance d) increases, the pushing resistance (contact resistance R) gradually increases.
Therefore, when the water storage tank 20 is pushed into the connecting pipe member 52, even if the water storage tank 20 is pushed in at the wrong installation position, the pushing resistance (contact resistance R) at the time of pushing is relatively small, so that the connecting pipe It is possible to prevent the member 52 and the tank-side connection portion 56 from being damaged, and it is possible to notice that the water storage tank 20 is pushed in at an erroneous installation position before the damage.

Further, according to the flush toilet device 1 according to the present embodiment, a plurality of flexible fin portions 54a and 54b formed on the outer peripheral surface of the fin packing 54 are arranged at intervals in the axial direction of the outer peripheral surface of the fin packing 54. Therefore, when the water storage tank 20 is pushed into the connecting pipe member 52, the pushing force P and the pushing resistance (contact resistance R) at the time of pushing can be reduced, and a relatively small pushing force P can be easily used. The tank-side connecting portion 56 and the connecting pipe member 52 can be watertightly connected.

Further, according to the flush toilet device 1 according to the present embodiment, the tank-side connecting pipe 56a is formed so as to communicate in the vertical direction with the connecting pipe member 52 and the tank-side connecting portion 56 connected to each other. The connection pipe member 52 is provided so as to be supportable on the toilet body side in a state where the water storage tank 20 is assembled at a predetermined installation position from the upper side, and the pushing force P from the tank side connection portion 56 to the connection pipe member 52 can be dispersed. By further having the force distribution portion 64, the operation of pushing the tank side connecting portion 56 from above to the connecting pipe member 52 is performed, and the tank side connecting portion 56 pushes the connecting pipe member 52 excessively. Even if P is added, the pushing force P can be dispersed by the force distribution unit 64, so that it is possible to prevent the connecting pipe member 52 from being damaged.

Further, according to the flush toilet device 1 according to the present embodiment, the water storage tank 20 is further provided with a fixing device 66 capable of fixing the water storage tank 20 to the toilet body 2 so that the posture of the water storage tank 20 is maintained in a horizontal state. As a result, the water storage tank 20 can be stably fixed to the toilet bowl body 2, so that the water storage tank 20 can be prevented from rattling, and the water storage tank 20 moves every time the cleaning operation is performed. It is possible to prevent the jet pump operation from becoming unstable due to fluctuations in the washing water level inside.

Next, the flush toilet device 100 according to the second embodiment of the present invention will be described with reference to FIG.
FIG. 16 is a front sectional view similar to FIG. 4, showing a flush toilet device according to the second embodiment of the present invention.
Here, in the flush toilet device 100 according to the second embodiment of the present invention shown in FIG. 16, the same parts as those of the flush toilet device 1 according to the first embodiment of the present invention shown in FIG. 4 are designated by the same reference numerals. , These explanations will be omitted.
As shown in FIG. 16, in the flush toilet device 100 according to the present embodiment, a force distribution member 164 that supports the connection pipe member 52 from below is provided, and the base portion 164a of the force distribution member 164 is the toilet bowl main body. A force integrally formed in the toilet body 2 of the flush toilet device 1 according to the first embodiment of the present invention described above in that it is fixed to the bottom surface 62 of the installation space S1 of the water storage tank 20 on the rear side of 2. The form is different from that of the dispersion unit 64.

According to the flush toilet device 100 according to the second embodiment of the present invention described above, the operation of pushing the tank side connecting portion 56 into the connecting pipe member 52 from above to below is performed, and the tank side connecting portion 56 is connected. Even if an excessive pushing force P is applied to the pipe member 52, the pushing force P can be dispersed by the force distribution member 164, so that it is possible to prevent the connecting pipe member 52 from being damaged.

Next, the flush toilet device 200 according to the third embodiment of the present invention will be described with reference to FIG.
FIG. 17 is a schematic perspective view of the flush toilet body in the state before the water storage tank of the flush water tank device is assembled at a predetermined installation position in the flush toilet device according to the third embodiment of the present invention as viewed from the rear side. ..
Here, in the flush toilet device 200 according to the third embodiment of the present invention shown in FIG. 17, the same parts as those of the flush toilet device 1 according to the first embodiment of the present invention described above are designated by the same reference numerals. The description of is omitted.
As shown in FIG. 17, in the flush toilet device 200 according to the present embodiment, between the spat 50 watertightly connected to the inflow port 14a of the headrace 14 of the toilet body 2 and the tank side connection 56 of the water storage tank 20. The watertightly connected connecting pipe member 252 includes a force distribution portion 264 integrally formed in a flange shape in the left-right direction from the upper end portion 252a, and both ends of the force distribution portion 264 in the left-right direction of the toilet bowl body 2. A force distribution portion 64 integrally formed with the toilet bowl body 2 of the flush toilet device 1 according to the first embodiment of the present invention described above, and a second embodiment of the present invention, in that they are partially supported and fixed. It has a different form from each of the force distribution members 164 of the flush toilet device 100.

According to the flush toilet device 200 according to the third embodiment of the present invention described above, the operation of pushing the tank side connection portion 56 into the connection pipe member 252 from above to below is performed, and the tank side connection portion 56 is connected. Even if an excessive pushing force P is applied to the pipe member 252, the pushing force P can be dispersed by the force distribution member 264, so that it is possible to prevent the connecting pipe member 252 from being damaged.

Next, the flush toilet device 300 according to the fourth embodiment of the present invention will be described with reference to FIGS. 18 to 19C.
FIG. 18 is an exploded perspective view of a flush toilet device according to a fourth embodiment of the present invention.
Next, FIG. 19A is a schematic diagram showing a state before the start of construction in which the water storage tank of the flush toilet device according to the fourth embodiment of the present invention is not assembled at a predetermined installation position on the rear side of the toilet body. It is a sectional view.
Further, in FIG. 19B, after the state before the start of construction shown in FIG. 19A, the water storage tank of the flush water tank device of the flush toilet device according to the fourth embodiment of the present invention is rearward to a predetermined installation position on the rear side of the toilet body. It is a schematic cross-sectional view which shows the 1st construction state in which only the spud was watertightly connected to the inlet of the headrace of the toilet body before assembling from the side.
Further, in FIG. 19C, after the first construction state shown in FIG. 19B, the tank side connection portion of the water storage tank of the flush water tank device of the flush toilet device according to the fourth embodiment of the present invention is connected to the headrace of the toilet body. It shows the second construction state in which the water storage tank is assembled from the rear side to the predetermined installation position on the rear side of the toilet bowl body by being watertightly connected to the spud that is watertightly connected to the inflow port via the fin packing. It is a schematic sectional view.
Here, in the flush toilet device 300 according to the fourth embodiment of the present invention shown in FIGS. 18 to 19C, the same parts as those of the flush toilet device 1 according to the first embodiment of the present invention described above are designated by the same reference numerals. However, these explanations will be omitted.

First, as shown in FIGS. 18 to 19C, in the flush toilet device 300 according to the fourth embodiment of the present invention, the wall of the toilet room (not shown) or the like is formed with respect to the rearmost end of the toilet body 2. The flush water tank device 304 is not provided adjacently, and the rear side of the predetermined installation space S1 on the rear side of the toilet bowl body 2 is an open area, and the water storage tank 320 is provided for this installation space S1. The water storage tank 20 of the flush toilet device 1 according to the first embodiment of the present invention described above can be assembled from the rear side, and is inserted into the predetermined installation space S1 on the rear side of the toilet body 2 from the upper side. It is different from the point that it has to be assembled.
Further, as shown in FIGS. 18 and 19B, the connecting pipe member 52 in a state of being inserted and assembled in the water storage tank 320 has a front end portion extending forward through the front wall portion 320a of the water storage tank 320. It is different from the tank side connection portion 56 of the water storage tank 20 of the flush water tank device 4 of the flush toilet device 1 according to the first embodiment of the present invention described above in that it is a tank side connection portion 356. ..
Further, the front wall portion 320a of the water storage tank 320 and the tank side connecting portion 356 are watertightly connected via the packing 354.

Next, a method of installing the flush water tank device 304 of the flush toilet device 300 according to the fourth embodiment of the present invention at a predetermined installation position of the toilet body 2 will be described with reference to FIGS. 18 to 19C.
First, as shown in FIGS. 18 and 19A, the operator performs the construction before installing the flush water tank device 4 of the flush toilet device 1 according to the present embodiment in the predetermined installation space S1 on the rear side of the toilet body 2. Construction is started from the state before the start, and then, as shown in FIG. 19B, the spud 50 is inserted into the installation space S1 from the rear side, and the spud 50 is inserted into the inflow port 14a of the headrace 14 of the toilet bowl body 2. By inserting from the rear side, only the spud 50 is in the first construction state in which only the spud 50 is watertightly connected to the inflow port 14a of the headrace 14 of the toilet body 2.

Next, after the first construction state shown in FIG. 19B, as shown in FIGS. 18 and 19C, water storage in a state in which the water supply valve device 26, the jet pump unit 30, the connecting pipe member 52 and the like are assembled in advance. The tank 320 is inserted from the rear side into a predetermined installation space on the rear side of the toilet bowl main body 2.
Then, as shown in FIGS. 19B and 19C, the entire water storage tank 320 is moved further forward with respect to the toilet bowl body 2, and the spud 50 is watertightly connected to the inflow port 14a of the headrace 14 of the toilet bowl body 2. On the other hand, the tank side connecting portion 356, which is the front end portion of the connecting pipe member 52, is inserted from the rear side via the spud 54 and connected watertightly, resulting in the second construction state.

Next, after the second construction state shown in FIG. 19C, the water storage tank 20 is fixed to the toilet bowl body 2 by the fixing device 66 so that the posture of the water storage tank 20 is maintained in the horizontal state.
Then, as shown in FIG. 18, it is confirmed that the push-in depth confirmation line L1 is parallel to the confirmation line L2 on the toilet body side and substantially coincides with the height positions of both L1 and L2, and the water storage tank. When it is confirmed that the 320 is correctly installed at the predetermined installation position on the rear side of the toilet body 2, the tank lid 82 is placed on the upper end of the installation space S1 of the water storage tank 320 on the rear side of the toilet body 2. Installation and construction are complete.

On the other hand, if it is not possible to confirm that the water storage tank 320 is correctly installed at a predetermined installation position on the rear side of the toilet bowl body 2, the posture inside the water storage tank 320 may not be in the horizontal state. , Fine-tune the fixing device 66 and the like until the correct installation state can be confirmed.

According to the flush toilet device 300 according to the fourth embodiment of the present invention described above, when the tank-side connecting portion 356 of the connecting pipe member 52 watertightly connects the water storage tank 320 to the toilet body 2, the surroundings thereof. However, when the water storage tank 320 is assembled from the rear side to the predetermined installation space S1 on the rear side of the bowl portion 6 of the toilet bowl main body 2, the water storage tank 320 is covered so that the worker cannot directly access it. As a result, the water storage tank 320 is pushed into the predetermined installation space S1 of the toilet bowl body 2 from the rear side, so that the tank side connection portion 356 can be indirectly and watertightly connected to the spud 50 via the fin packing 54. At this time, since the pushing force P acting on the fin packing 54 is set to be smaller than the pulling force acting on the fin packing 54 when the tank side connection portion 56 is pulled out from the spud 50 and removed, water is stored. When the tank 320 is pushed against the toilet body 2 to watertightly connect the tank side connection 356 to the spud 50, the tank side connection 356 and the spud 50 can be easily connected with a relatively small pushing force P. Can be connected watertightly.
On the other hand, when the tank side connection portion 356 is pulled out from the spud 50 and removed, a relatively large pulling force is required, so that the water storage tank 320 may be unintentionally disconnected from the toilet bowl body 2. Can be prevented.

1 Flush toilet device according to the first embodiment of the present invention 2 Toilet bowl body 4 Wash water tank device 6 Bowl part 8 Rim part 10 Drain trap pipe 10a Drain trap pipe inlet 12 Drain socket 14 Water tank 14a Water flow Inlet 16 Spout 18 Water supply pipe 20 Water storage tank (tank)
20a Inside front of water storage tank (front wall of tank, front of tank)
20b Bottom of water storage tank (bottom of tank)
20c Back side of water storage tank and bases on both left and right sides 20d Long hole for fixing tank 20e Outer front side of water storage tank 22 Constant flow valve 24 Main valve (water supply valve)
26 Water supply valve device (water supply valve)
28 Vacuum break valve 30 Jet pump unit 32 Operation lever 34 Water supply pipe 36 Jet nozzle 38 Flow path switching valve 40 Throat pipe 40a Suction port 40b Outlet 42 Toilet bowl cleaning flow path 44 Tank water storage flow path 46 Drive shaft 48 Float 50 spud (Toilet bowl body side connection)
52 Connection pipe member (toilet bowl body side connection)
52a Toilet bowl main body side connection pipeline 52b Upper end of connection pipe member 52c Lower side surface of bent part of connection pipe member 52d Front end of connection pipe member 54 Fillet packing (seal member, packing member)
54a Lower fin (protrusion)
54b Upper fin (protrusion)
56 Tank side connection 56a Tank side connection line (connection line)
58 Water tank step 58a Water tank step connection port 58b Water storage tank step upper end 58c Water storage tank step outer wall 58d Water tank step upper side wall 60 Throat pipe side connection 62 Bottom of the installation space of the water storage tank on the rear side of the toilet body 62a Mounting hole 64 Force distribution part 66 Fixing device (horizontal maintenance part)
68 Rubber bush 70 Flexible member 72 Bolt 74 Seat metal 76 Spring seat metal 78 Bolt operation part 80 Front upper edge of water storage tank installation space on the rear side of the toilet body 82 Tank lid 100 Washing with water according to the second embodiment of the present invention Toilet bowl device 164 Force distribution member 164a Base part of force distribution member 200 Water-washing toilet device according to the third embodiment of the present invention 252 Connection pipe member 252a Upper end part of connection pipe member 264 Force distribution part 300 According to the fourth embodiment of the present invention Toilet bowl device 304 Wash water tank device 320 Water storage tank 320a Front wall of water storage tank 354 Packing 356 Tank side connection A1 Central axis that divides the water storage tank into two equal parts in the left-right direction A2 Front and back of the water storage tank in the plan view Central axis that divides into two equal parts in the direction DWL minimum water level (dead water line)
d Insertion distance d0 Insertion distance d1 Insertion distance d2 Insertion distance d3 Insertion distance
F1 Operation area surface that can be pushed in F2 Front area surface L1 Checking depth of the water storage tank L2 Checking line on the toilet body side P Pushing force P1 Pushing force P2 Pushing force R Contact resistance R1 Contact resistance R2 Contact resistance S1 Toilet bowl body Installation space for water storage tank on the rear side WL0 Full water level

Claims (5)

A flush toilet device that cleans the toilet bowl with washing water supplied by the jet pump action and discharges filth.
A toilet bowl body equipped with a bowl part that receives filth and a headrace for guiding wash water to this bowl part.
It is assembled from the upper side or the rear side to a predetermined installation position on the rear side of the bowl part of the toilet bowl body, and a part of the washing water supplied from the water supply source is stored and washed in the headrace of the toilet bowl main body. A tank for supplying water, comprising a jet pump unit which is arranged in a state where at least a part of the tank is submerged, and the jet pump unit is a jet nozzle for injecting cleaning water supplied from the water supply source. The jet nozzle is provided with a throat pipe having a suction port formed at one end and an outlet having an outlet for discharging washing water toward the headrace of the toilet body at the other end. By jet-injecting the cleaning water from the inside to the inside, a jet pump action that increases the flow rate of the cleaning water flowing in the throat pipe is larger than the flow rate of the cleaning water injected from the jet nozzle is induced, and the increased flow rate. The washing water is supplied from the throat pipe to the headrace of the toilet bowl body, and the tank.
One end water conduit of the toilet body is the other end with provided integrally or separately connected to the tank, and feces body side connecting portion that form a toilet body side connecting conduit therein,
The tank side connection that is provided on the front side of the tank and is connected to the toilet body side connection portion and forms a tank side connection pipe that can communicate with the toilet body side connection pipe. Department and
The toilet bowl body side connection portion and the tank side connection portion are provided in either the toilet bowl body side connection portion or the tank side connection portion, and the tank is assembled to the predetermined installation position from the upper side or the rear side. It has a seal member that is watertightly connected to and from the connection part.
The toilet main-side connecting portion and the tank side connection portion, the tank when connecting watertight with respect to the toilet body, as direct access of the operator for its surroundings becomes impossible, the tank-side The side of the connection is covered by both a part of the toilet bowl body and a part of the tank .
When the tank is assembled to the predetermined installation position from the upper side or the rear side, the seal member pushes the tank into the toilet body side connection portion to push the tank side connection portion into the toilet bowl main body. The pushing force acting on the seal member when watertightly connecting to the side connection portion causes the tank side connection portion that is watertightly connected to the toilet bowl body side connection portion to the toilet bowl body side connection portion. A flush toilet device characterized in that it is set to be smaller than the pulling force acting on the sealing member when it is pulled out and removed. The seal member is a packing member formed in a substantially annular shape, and a flexible protrusion projecting outward in the radial direction is formed on the outer peripheral surface of the packing member over the entire circumference. Item 1. The flush toilet device according to item 1. The flush toilet device according to claim 2, wherein a plurality of the protrusions are arranged at intervals in the axial direction of the outer peripheral surface of the packing member. The toilet bowl main body side connection portion and the tank side connection portion form a connection pipeline that communicates in the vertical direction while being connected to each other.
The flush toilet device is further provided so as to support the toilet body side connection portion in a state where the tank is assembled at the predetermined installation position from above, and the tank side connection portion to the toilet bowl body side connection portion. The flush toilet device according to any one of claims 1 to 3, which has a force distribution unit that makes it possible to disperse the pushing force into the toilet. The flush toilet device according to any one of claims 1 to 4, further comprising a horizontal maintenance portion that allows the tank to be fixed to the toilet body so that the posture of the tank is maintained in a horizontal state. ..

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