JPH09256447A - Flush toilet stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with the installation of a low tank on a flush toilet stool and save water by supporting a trap section on a rotary shaft, and making the free terminal end rotatable in the vertical direction and reversible. SOLUTION: One end of a hose 7 is directly connected to the terminal end of a drain pipe 3 as a fixed end, and the other end of the hose 7 is made rotatable in the vertical direction and reversible as a free end. When a toilet stool is washed after stool, washing water is fed to a bowl 1, a rotary shaft 16 a is rotated by the forward rotation of a motor, the rotation is transmitted to an arm 15a and a support member 14, and the hose 7 is rotated downward. The motor is stopped when the free end of the hose 7 faces a discharge port 5, and muck is discharged together with the stagnant water. After the muck is completely discharged, the motor is reversely rotated, the free end of the hose 7 is inverted to the initial state to face upward. Water is again stored in the bowl 1, and water is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet. More specifically, the present invention relates to a flush toilet that does not require installation of a low tank and can save water.

[0002]

2. Description of the Related Art Conventionally, various types of flush toilets having various configurations and structures have been provided for flush toilets installed in toilets of houses and the like. For example, flush toilets of a pump water supply type equipped with a low tank are known. Are known. In the flush toilet using the pump water supply system, water for discharging waste and cleaning the bowl is stored in a low tank provided at a position higher than the bowl. Then, when the stored water is supplied into the bowl, the stored water is caused to pass over a water sealing trap connected to the bowl by a head pressure of the stored water, thereby discharging dirt.

[0003]

However, in the case of the flush toilet of the pump water supply system, since a large head pressure is required for discharging the waste, it is indispensable to install a low tank, and this is omitted. It is essentially impossible to do. For this reason, although the toilet space is limited, the low tank occupies a part of the space, which often imposes restrictions on the installation. In addition, since it is necessary to install an accessory device such as a hand-washing device and a storage device for fixtures in addition to the toilet in the toilet, it is not preferable to devote a space only to the toilet.

[0004] In addition, the conventional flush toilet generally requires a large amount of water to discharge the waste because it is necessary to make the water pass over the trap portion when discharging the waste. The flush toilet with the pump water supply system described above is no exception,
Considering limited water resources, it is desired to realize a more water-saving flush toilet. The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the drawbacks of the conventional flush toilet, to eliminate the need to install a low tank, and to provide a flush toilet capable of saving water. I am trying.

[0005]

Means for Solving the Problems The present invention solves the above-mentioned problems. In a flush toilet in which a trap portion is disposed in a drainage passage extending from a bowl, the trap portion is supported on a rotating shaft and is free. The terminal end is rotatable and reversible in the vertical direction, the trap portion is housed inside a case body communicating with the external drain pipe, and a drive source is connected to the rotating shaft. Provide a flush toilet.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a flush toilet according to the present invention.

[0007]

1 and 2 are a longitudinal sectional view and a transverse sectional view, respectively, showing an embodiment of a flush toilet according to the present invention. For example, in the example shown in FIGS. 1 and 2, a drain pipe portion (3) extends from the drain port (2) at the bottom of the bowl (1) toward the rear of the toilet. A trap (6) is provided between the end of the drain pipe (3) and the outlet (5) at the bottom of the toilet connected to the external drain pipe (4). In this example, the trap portion (6) is formed of a bellows-like stretchable and bendable hose (7). There is no particular limitation on the material of the hose (7), and a suitable elastic material, such as resin and rubber, which can be expanded and contracted and bendable without bending, can be used. The hose (7) provided as the trap portion (6) has a case body (8) having an internal space communicating with the discharge port (5).
It is housed in. The drain port (2), the drain pipe section (3), the trap section (6), the case body (8), and the discharge port (5) form a drain channel of a flush toilet.

FIGS. 3 and 4 are a longitudinal sectional view and a transverse sectional view showing an enlarged view of the periphery of the trap portion (6). As illustrated in FIGS. 3 and 4, one end of the hose (7) is directly connected to the end of the drain pipe (3) and is a fixed end. Specifically, the end of the drain pipe part (3) is inserted into one end of the hose (7), and is fastened from the outer periphery by a hose band (9).

A fixed piece (10) projecting in the outer diameter direction is provided on the fixed end side of the hose (7). An opening substantially equal to the outer diameter of the hose (7) is formed in the case body (8) on the end side of the drain pipe section (3), and the hose (7) is connected to the case body through this opening. (8) is inserted and accommodated. And the fixing piece (10)
The hose (7) is connected to the case body (8) on the fixed end side via the. As shown in the enlarged cross-sectional view of FIG. 3, at the connection between the hose (7) and the case body (8), a flange (11) is provided on the back surface of the fixing piece (10), and the case body (8). ), A washer (12) is arranged on each surface, and a screw (13) inserted from the surface side of the case body (8) is screwed into the flange (11) to be joined, and the fixing piece (10) is fixed to the case (10). Body (2) and flange (1
1) and is in contact with the inner surface of the case body (8). By providing such a fixing piece (10),
The installation of the hose band (9) required for connection with the drain pipe section (3) can be partially omitted, and the connection operation can be made simple and easy. There is also no particular limitation on the material of the fixing piece (10). For example, the fixing piece (10) can be formed from the same or different material as the hose (7). Further, the fixing piece (10) can be integrally formed when the hose (7) is formed. Of course, formed as a separate body,
Thereafter, they may be integrated by bonding or the like.

On the other hand, the other end of the hose (7) is a free end, and can be freely rotated and inverted in the direction of the arrow shown in FIG. 3, that is, in the vertical direction. Specifically, as shown in FIG. 4, the free end of the hose (7) is attached to the support member (1).
4) is fixed. The support member (14) is connected to one end of a pair of arms (15a) (15b) arranged in the diameter direction outside the hose (7). Also,
The other ends of the arms (15a) and (15b) are connected to rotatable rotation shafts (16a) and (16b) coaxially arranged on the case body (7). The rotating shaft (16a) can be fixed using, for example, a joint (17), and the rotating shaft (16b) can be connected to a bearing (18) or the like. Rotary shaft (16a)
(16b) can be smoothly rotated by an external torque applied thereto, and this rotation is performed by the arm (1).
5a) (15b) and the support member (14)
The hose (7) rotates and reverses in the vertical direction according to the rotational force applied to the rotating shafts (16a) (16b). Since the hose (7) has sufficient flexibility and can expand and contract and bend, it does not bend by rotation and inversion.
Further, the inner diameter is not reduced.

In this example, the rotation shaft (16
a) to apply a rotational force to the motor (19)
Is connected to the rotating shaft (16a) as a drive source via a speed reduction mechanism (20). Thus, the rotational force of the motor (19) is transmitted to the rotating shaft (16a), and its forward rotation and reverse rotation can be made to correspond to rotation and reversal of the free end of the hose (7), respectively. The motor (19) and the speed reduction mechanism (20) can be fixed together on the surface of the case body (8).

As described above, the rotating shaft (16a) can be fixed by using the joint (17), so that the rotating shaft (16a) is rotated by an external force other than the motor (19), and displacement is caused. It is possible to prevent. further,
Although not shown, the flush toilet is also provided with a control system for the motor (19). A position detection switch (20) can be electrically connected to this control system together with a switch for inputting the operation of the motor (19). The position detection switch (20) is provided as position detection means for detecting a position when the free end of the hose (7) is arranged upward. Further, the control system can incorporate a control means for receiving the position detection input from the position detection switch (20) and controlling the operation of the motor (19). When a position detection signal is input from the position detection switch (20), the control means stops the operation of the motor (19). This ensures that the free end of the hose (7) is oriented upwards during reverse rotation of the motor (19). There is no particular limitation on such control means, for example, a microcomputer or the like. The position detection input of the position detection switch (20) can also be detected together when the free end of the hose (7) is arranged facing downward.

For example, the flush toilet having the above configuration is
It operates as follows when discharging waste. Normally, the free end of the hose (7) is arranged upward. For this reason, water is stored inside the bowl (1) at a height up to the free end and sealed. When the toilet flushing is switched on after the toilet stool, the bowl (1) is supplied with flush water for bowl face flushing as before. After a few seconds, for example, the motor (19) operates. At this time, the motor (1
9) rotates in the forward direction, and the rotation causes the rotating shaft (16a) (1
6b) rotates, which is transmitted to the arms (15a) (15b) and the support member (14), and the hose (7) rotates downward. The free end of the hose (7) is the outlet (5)
, The motor (19) stops. The waste is discharged together with the water.

The stop of the motor (19) at this time may be performed in response to a position detection input by the position detection switch (20).
It is also possible to set in advance in the control system the required time until the free end is disposed below, and to automatically perform the operation after this time has elapsed. The operation time of the motor (19) can be about 1 second, and in this case, a timer can be provided in the control system.

After a while, when the waste is completely discharged, the motor (19) rotates in the reverse direction, and the free end of the hose (7) is inverted. Cleaning of waste and cleaning of bowl (1)
It can be about 2 seconds. During this time, the motor (19) is stopped and the free end of the hose (7) is held facing downward. When there is a position detection input from the position detection switch (20), the motor (19) stops. At this time, the free end of the hose (7) is arranged so as to return to the initial state and face upward. Water is again stored inside the bowl (1) and sealed. When the water is supplied in excess, it overflows from the free end of the hose (7) and is drained from the outlet (5). Water does not overflow from the bowl (1) and wet the floor or the like.

As described above, in this flush toilet, dirt can be discharged from the bowl (1) without supplying water beyond the trap portion (6). No pressure is required. Therefore, the low tank provided in the conventional flush toilet using the pump water supply system can be eliminated. The low tank can be omitted, and the configuration of the flush toilet is simplified. Even in the limited toilet space, there is no restriction on the installation of the flush toilet, and the toilet space can be effectively used. The feeling of oppression by installing a low tank is also eliminated. For example, the flush toilet can be of a water pipe direct connection type as shown in FIG. A rim portion (21) provided on the upper edge of the bowl (1) along the entire periphery thereof is provided with a water supply valve (22).
Can be connected to a water pipe. Bowl (1)
Is directly supplied to the rim portion (21).

Further, in the case of the flush toilet described above, wastewater is basically discharged from the bowl (1) inside the bowl (1), and the amount of water can be reduced. When the waste is discharged, water is supplied into the bowl (1), which is mainly used for cleaning the bowl surface as additional water, and a small amount of water is sufficient. A more water-saving flush toilet is realized. At the time of a power failure, the motor (19) does not operate. In that case, if water is pumped into a bucket or the like and supplied to the bowl (1), the water is supplied by the force at that time to the hose (7). Over the free end of the When sealing the water, the pumping water may be supplied until the pool water is formed in the bowl (1). No special measures need to be taken to respond to a power outage. Basically, the same can be taken when the water is cut off as in the case of a power outage. By supplying the pumping water into the bowl (1), it is possible to discharge waste and form stored water.

Of course, the present invention is not limited by the above examples. It goes without saying that various aspects are possible for details such as the configuration and structure of the trap portion and a mechanism for rotating and reversing the free end of the trap portion in the vertical direction. There is no particular limitation on the flush toilet body. In the example shown in FIGS. 1 and 2, the bowl (1)
Although the diameter of the opening is larger than the normal diameter, the bowl (1) having the normal diameter may be used. The bowl (1) illustrated in FIGS. 1 and 2 has a large-diameter opening, and its upper end is inclined upward at a predetermined angle toward the rear. In the case of the flush toilet provided with such a bowl (1), the receiving area is enlarged as compared with a flush toilet provided with a bowl of a normal diameter, and thus there is an effect that the use of a small boy is easy.

[0019]

As described above in detail, according to the present invention, the low tank can be omitted, and the structure of the flush toilet can be simplified. Even if the toilet space is limited, there is no restriction on the installation, and the toilet space can be effectively used. The feeling of oppression by installing a low tank is also eliminated.

In addition, the amount of water required for discharging the waste is basically sufficient with the water stored in the bowl, and water can be saved. It becomes a water-saving flush toilet.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a flush toilet according to the present invention.

FIG. 2 is a cross-sectional view of the example shown in FIG.

FIG. 3 is an enlarged longitudinal sectional view showing the vicinity of a trap portion.

FIG. 4 is a cross-sectional view of the example shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 bowl 2 drain port 3 drain pipe section 4 external drain pipe 5 discharge port 6 trap section 7 hose 8 case body 9 hose band 10 fixing piece 11 flange 12 washer 13 screw 14 support member 15a, 15b arm 16a, 16b rotary shaft 17 joint 18 Bearing 19 Motor 20 Reduction mechanism 21 Rim 22 Water supply valve

Front page continuation (72) Inventor Takahiro Nakamura 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Katsuyuki Okumura, 1048, Kadoma, Kadoma, Osaka Prefecture (72) Inventor, Sato Yasushi, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Inventor, Tetsuji Niiyama, 1048 Kadoma, Kadoma, Osaka Prefecture, Matsuda Electric Works, Ltd. (72) Hiroo Fukui, 1048, Kadoma, Kadoma, Osaka Matsushita Electric Works Co., Ltd.

Claims (5)

[Claims] 1. A flush toilet in which a trap portion is provided in a drainage passage extending from a bowl, wherein the trap portion is supported on a rotating shaft, and a free end is freely rotatable and reversible in a vertical direction. The flush toilet, wherein the trap portion is housed inside a case body communicating with an external drain pipe, and a driving source is connected to the rotating shaft. 2. The flush toilet according to claim 1, wherein the trap portion is a bellows-shaped hose that can expand and contract and bend freely. 3. A trap terminal end is fixed to a support member.
3. The flush toilet according to claim 1, wherein an arm having one end connected to the support member is connected to a rotating shaft at the other end, and a motor is provided as a drive source. 4. A position detecting means for detecting a position when the end of the trap portion is disposed facing upward, and a control means for controlling the operation of the motor by inputting a detection signal from the position detecting means are provided. A flush toilet according to claim 3, wherein 5. One end of a bellows-shaped hose is a fixed end, and is directly connected to an end of a flush toilet drain pipe portion extending from a bowl by a hose band. 3. The flush toilet according to claim 2, wherein a fixing piece is provided, and the hose is connected to the case body by fixing means via the fixing piece.