JPH11210054A - Flush toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic discharge mechanism type flush toilet which is free from inconvenience caused by lateral outflow of sewage at the end of a movable trap and also free from the scraping up of sewage or toilet paper during sewage discharge. SOLUTION: An axis of rotation 2 of a movable trap 3 housed in a case body 6 communicating to an external drain pie and also arranged in a drainage 5 extended from a bowl 4 of the main body of flush toilet is coupled to a motor electrically connected to a control section 9 thereby controlled for operation and, as the axis of rotation 2 turns by the motor operation, a final end 30 as the free end of the movable trap is rotatable and reversible in a vertical direction in this automatic discharge mechanism type flush toilet. Here, in an early water application when the final end 30 of the movable trap 3 is in upward position, this final end 30 is located in a slanted position at the inner wall surface side of the case body 6 in a rotating direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet having an automatic discharge mechanism. More specifically, the invention of this application relates to a flush toilet of an automatic discharge mechanism type provided with a movable trap having a terminal structure suitable for discharging and transporting waste.

[0002]

2. Description of the Related Art Conventionally, various types of flush toilets having various configurations and structures have been provided as flush toilets installed in toilets of houses and the like, but recently, flush toilets as completely new configurations have been provided. However, for example, Japanese Patent Application No. 8-67573 and Japanese Patent Application Laid-Open No. 9-256647 have proposed a flush toilet equipped with an automatic discharge mechanism exemplified in FIGS.

[0003] In this new flush toilet of the automatic discharge mechanism type, a motor (1) is supported by a rotating shaft (2) to which a motor (1) is connected, and a free end (30) is freely rotatable and reversible in the vertical direction. A movable trap (3) is provided in a drain (5) extending from the bowl (4), and the movable trap (3) is in a case body (6) called a chute which communicates with an external drain pipe. Is housed in A flexible member such as a bellows hose can be used for such a movable trap (3).

Further, in this flush toilet, an electromagnetic valve (8) is provided in a water supply path for supplying flush water to a rim (7) and the like. The motor (1) and the solenoid valve (8) include a control unit (9)
Are electrically connected to each other so that operation can be controlled. For example, in the flush toilet having the above configuration, normally, the free end of the movable trap (3) is disposed facing upward, and water is supplied inside the bowl (4) to the height (water supply line) up to the free end. It is stored and sealed.

When the discharge operation is input via a switch or the like after the stool, the solenoid valve (8) is opened, and washing water is supplied into the bowl (4) therethrough. Thereafter, the motor (1) operates, and the rotating shaft (2) rotates to rotate the free end of the movable trap (3) downward. With the rotation of the free end of the movable trap (3), the dirt in the bowl (4) flows out together with the washing water toward the external drain pipe and is discharged out of the toilet.

After the waste is completely discharged, the rotating shaft (2) is reversely rotated by the motor (1), and the movable trap (3) is reversed to return to the initial state. And store water up to the water supply line. Then, the solenoid valve (8) is closed. Unlike the conventional flush toilets, such an automatic flush mechanism-type flush toilet does not directly participate in the discharge of waste when discharging waste, and does not require flush water used only to cause a siphon action. It is a water-saving type, and is attracting attention as a silent type flush toilet.

[0007]

However, even though this flush toilet is excellent in water saving and noise reduction, since it is a mechanical flush toilet, it is necessary to further improve its performance in practical use. There were small technical issues. One of them is that the end (30) as the free end of the movable trap (3) has been so far, as shown in FIG. 7A, the center of the opening of the end (30) at the time of initial water flow. It is arranged so that it is located substantially vertically upward with respect to the rotation axis (2), that is, the opening is substantially horizontal,
Also, when the waste or toilet paper is discharged, as shown in FIG. 7C, the center of the opening of the terminal end (30) is arranged so as to be at a substantially downward vertical position, that is, the opening is substantially horizontal. And the terminal (30) of the movable trap (3) has a flange shape. This is because in the conventional structure of the movable trap (3), as shown in FIGS. 7 (A), 7 (B), and 7 (C), the motor operates by inputting a switch after the stool. As the rotating shaft (2) rotates, the end (30) of the movable trap (3) rotates downward, and the dirt in the bowl (4) flows out together with the washing water toward the external drain pipe, and goes out of the toilet. Although it will be discharged, FIG.
The end of the movable trap (3) (3)
0) is in the upward substantially vertical position, that is, the opening of the terminal end (30) is positioned so as to be substantially horizontal, so that the sewage is reduced only in front (a) in the rotational direction of the terminal end (30). Instead, the water flows out in the horizontal direction (b) and further backwards, and also flows out in the horizontal direction of the flange even during the drainage in the state of FIG. It cannot be used for transporting and discharging, and it may be difficult to carry out and discharge these movable traps (3) and the inside of the case body (6), and dirt and toilet paper may adhere to the outer periphery of the movable trap (3). This makes it difficult to remove them. Further, in the conventional case, FIG.
In the state of waste discharge shown in FIG. 3C, when the movable trap (3) is reversed and returned, the terminal end (30) is located at a substantially vertical downward position, and the opening is horizontal. It is feared that waste and toilet paper may be scraped up by the flange of the terminal end (30) and adhere to the outer peripheral portion of the flange of the terminal end (30) or the inner wall of the case body (6), thereby making it difficult to discharge the waste. It was because it was done.

Accordingly, the invention of this application provides a new technical means for the points to be further improved as described above. It is an object of the present invention to provide a new automatic flushing type flush toilet without the fear of scraping up waste and toilet paper during the flushing.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides, as a first invention, a case which is disposed in a drainage passage extending from a bowl of a toilet body and communicates with an external drainage pipe. The rotating shaft of the movable trap housed in the body is electrically connected to the control unit and connected to a motor whose operation is controlled. An automatic flushing mechanism flush toilet that is rotatable and reversible in the vertical direction, and the end of the movable trap is inclined toward the inner wall surface of the case in the rotating direction at the time of initial water flow with the end of the movable trap at the upward position. Provided is a flush toilet having an automatic discharge mechanism, which is disposed at a position.

[0010] Further, the present invention is a second aspect of the present invention, in the flush toilet described above, wherein when the end of the movable trap is discharged at a downward position, the maximum end position of the movable trap is lowered.
Also provided is a flush toilet of an automatic discharge mechanism type, which is disposed at a position inclined toward the wall surface side of the case body in the reverse direction with respect to the external drain pipe connecting portion of the case body. According to a third aspect of the present invention, a rotating shaft of a movable trap, which is provided in a drainage passage extending from a bowl of a toilet body and is housed in a case body communicating with an external drainage pipe, is provided as a control unit. An automatic discharge mechanism that is electrically connected to a motor and that is connected to a motor whose operation is controlled, and that the free end of the movable trap can be rotated and inverted in the vertical direction with the rotation of the rotating shaft by the operation of the motor. In the flush toilet, the end of the movable trap having a cylindrical cross section as a free end has no flange portion, and swells at a central portion rather than an upper and lower portion along the rotation and inversion direction. Provided is a flush toilet having an automatic discharge mechanism, which is formed in an arc shape.

In a fourth aspect of the present invention, a rotating shaft of a movable trap, which is disposed in a drainage passage extending from a bowl of a toilet body and housed in a case body communicating with an external drainage pipe, is controlled. Automatic discharge in which the free end of the movable trap is connected to a motor whose operation is controlled by being electrically connected to the unit, and the free end of the movable trap can be rotated and inverted in the vertical direction with the rotation of the rotating shaft by the operation of the motor. A mechanical flush toilet, the end of which is a free end of a movable trap having a cylindrical cross section, the end of which is curved notched from left and right to the center in the upper and lower portions in the rotation and reversal directions of the movable trap. The present invention provides an automatic flush mechanism-type flush toilet characterized by the following characteristics.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The invention of this application has the features as described above, but the embodiments will be shown below and the embodiments of the invention will be described in more detail.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 of the accompanying drawings shows a flush toilet of the present invention and a terminal (3) of its movable trap (3).
FIG. 2 is an enlarged view of (0). For example, the flush toilet illustrated in FIG. 1 also has the same operation structure as in FIGS. 5 and 6, and is disposed in a drain passage (5) extending from the bowl (4) of the toilet body. A rotating shaft (2) of a movable trap (3) housed in a case body (6) communicating with an external drain pipe is electrically connected to a control unit and connected to a motor whose operation is controlled. The end (30), which is the free end of the movable trap (3) with the rotation of the rotating shaft (2) due to the operation, constitutes an automatic discharge mechanism type flush toilet capable of rotating and reversing in the vertical direction. . Then, the operation, that is, the discharge and discharge of the wastewater and waste after the stool is a process similar to that of FIG.

However, in the present invention, unlike the conventional flush toilets of FIGS. 5 to 7, as shown in FIG. 1, the initial end of the movable trap (3) is located at the upward position. At the time of water, the terminal end (30) is located at a position inclined toward the inner wall surface of the case body (6) in the rotation direction.
This is an essential feature of the first invention of this application. By tilting in this manner, the opening of the terminal end (30) is tilted, so that the wastewater can preferentially flow forward ahead of the lower edge in the rotational direction. As in the conventional case shown in FIG. 7A, the flow of sewage in the lateral direction (b) and the backward direction (c) is suppressed. Outflow to the front (a) has priority.

In the example shown in FIG. 1, such a forward flow is caused by the free end of a movable trap having a cylindrical cross section, that is, a movable trap made of a hose or the like which can be freely bent by a bellows structure or the like. The end (30) does not have a flange portion protruding to the outer periphery as in the related art, and has a more protruding arc shape at the center portion than at the upper and lower portions along the direction of rotation and reversal. Be effective. That is, as shown in the enlarged view of FIG. 1, the end (30) of the movable trap (3) has not only a flange portion but also the arc-shaped curved surface. The sewage flows out from the lower edge in the rotation direction of the movable trap (3), and the flow out of the sewage in the lateral direction and the back is effectively prevented. This is a feature of the third invention of this application.

In this case, the arc-shaped terminal (30) is provided with a terminal member (32) made of a relatively hard resin or metal, for example, at the tip of a trap hose (31) provided with bending flexibility by a bellows structure. ) Can be configured to be attached and adhered, and this hard terminal member (32)
The arm member (21) for transmitting the rotation of the rotation shaft (2)
Can be attached and fixed. In the present invention, even if the above-mentioned terminal member (32) is used, FIG.
Also as illustrated, the outer diameter of the trap hose (31) (D _1), in roughly equal, including the dimensional errors and tolerance to the outer diameter (D ₂₎ of the end piece (32), the
It is essentially different from the conventional structure having a flange projecting to the outer periphery.

Since the end (30) of the movable trap (3) formed on the end member (32) or the like in the example of FIG. 1 has the arc shape as described above, this arc-shaped curved surface (33) is used. ) May be said to have a shape along the inner wall surface of the case body (6) in which the movable trap (3) is housed. Since this arcuate curved surface (33) is formed at the end (30) as the free end of the movable trap (3), for example, as shown in FIG. 2, the case where the end member (32) is used is exemplified. In addition, it has a very distinctive shape.

When the movable trap (3) in the example of FIG. 1 is viewed from the lateral direction with respect to the vertical movement of its rotation and reversal,
The terminal end (30) has an arcuate curved surface (33) as shown in FIG. 2A similar to FIG. That is, it has a shape in which the central portion (α) swells more than the upper and lower portions of the end portion. On the other hand, when the terminal (30) is viewed from above, FIG.
As shown in (B), the central portion (β) has a shape that is notched in a curved manner. That is, a curved notch surface (34) is formed.

When this is viewed as a front view in FIG. 2C, the central portion (α) in FIG. 2A is the left and right edges of the end (30) of the cylindrical movable trap (3). Part, and FIG.
It can be seen that the central part (β) in (B) corresponds to the upper and lower edges. With respect to the shape of the end (30) of the movable trap (3) having the above-described characteristics, the end (30) may be an arc-shaped curved surface (33) centered on the rotation axis (2). In (30), it means that the curved notch surface (34) is naturally formed. The degree of curvature of the curved surface (33) is determined by the capacity of the toilet bowl, that is, the transfer / discharge capacity or its speed, the shape of the inner wall surface of the case body (6), the distance from the curved surface (33), and the like. It may be determined in consideration of the above. The curved surface (33) may be formed to have, for example, an arc shape centered on the rotation axis (2). The size of the curved notch surface (34) is naturally determined by the diameter of the end (30) of the movable trap (3) and the curvature of the curved surface (33). Without being limited to this, it is needless to say that the curvature of the notch may be made smaller or larger as the fourth invention of this application.

With the shape of the terminal (30) as described above,
For example, as is clear from FIG. 2, the central portion (α) of the left and right edges protrudes and the central portion (β) of the upper and lower edges is cut off. The sewage from the trap (3) is stopped by the presence of the swollen left and right central parts (α), and preferentially,
It can be seen that the central portion (β) flows out from the lower edge of the notched upper and lower edges. This is also evident from FIG. 3 which shows the movement of the movable trap (3) of the flush toilet.

That is, FIG. 3 exemplifies a case of initial water flow (A), a case of waste water discharge (B), and a case of waste water and waste discharge (C) in a normal state. At the time of the normal initial water supply of A), the sewage does not flow out in the horizontal direction (b) as in the case of the conventional movable trap (3) having a flange shown in FIG. This means that, at the end (30) of the movable trap (3), the swelling of the left and right edges (α) at the end (30) prevents the wastewater from flowing out in the lateral direction.

However, at the time of the initial water flow, the central part (β)
From the upper edge of the notched end (30) at
Similar to the lower edge, that is, it may flow out to the rear (c) together with the flow to the front (a) in FIG. 7A. However, in order to completely prevent the outflow to the rear (c) in FIG. 7 (A), the notch depth of the upper edge of the terminal end (30) should be smaller than that of the lower edge, or Alternatively, even if the notch depths at the upper and lower edges are equal, as shown in FIGS. 1 and 3A, the movable trap (3) at the time of initial water flow has its end (3).
0) is disposed at a position inclined toward the inner wall surface side of the case body (6), so that it is prevented from flowing backward from the upper edge, and preferentially, from the lower edge. Case body (6)
The sewage can be made to flow forward (a) toward the inner wall of the vehicle. The provision of the inclination is a feature of the first invention as described above.

In some cases, at the terminal end (30) of the movable trap (3), a curved notch is provided only in the lower edge, so that the sewage flows only forward from the front (a). Is also good. This is a form of the fourth invention of this application. The curved notch at the upper and lower edges at the end (30) may be a notch at an acute angle or an obtuse angle instead of a curve. However, from the viewpoint of discharging waste and toilet paper, it is appropriate to use a curved notch as a smooth curved surface.

As described above, for example, by tilting the end (30) of the movable trap (3) forward as shown in FIG. In the flush toilet, not only is it possible to prevent sewage from flowing laterally from the terminal end (30) as in the conventional case but also to prevent sewage from flowing backwards at the time of initial water supply.

In the flush toilet of the present invention, FIG.
As illustrated in (B), sewage is trapped in a movable trap (3).
Is prevented by the presence of the bulged central portion (α) of the left and right edges as described above, and the terminal (3) having no flange protruding on the outer periphery.
The distance between the curved surface (33) and the curved surface (33) of the case (6) is adjusted along the inner wall surface of the case body (6), so that the space in which the discharged wastewater flows in the horizontal direction can be reduced.
For this reason, most of the accumulated water and washing water can be used for carrying out and discharging the waste and the toilet paper.

That is, as is clear from FIGS. 3A and 3B, in the flush toilet of the present invention, waste water and toilet paper can be carried out by effectively using the accumulated water and the wash water.
The discharge is made effective, and there is no inconvenience caused by the attachment of dirt and toilet paper to the outer peripheral portion of the movable trap (3) and the inner wall of the case body (6). Moreover, in the flush toilet of the present invention, as is clear from FIG. 3 (C), when the movable trap (3) is inverted to return to the position of FIG. 3 (A) from the discharge of dirt and toilet paper, The end (30) of the movable trap (3) is not provided with a flange as in the prior art, and has a curved surface (3).
3) and the curved cutout surface (34) do not cause any problem of scraping up dirt and toilet paper. Then, as exemplified in FIG. 3 (C),
When discharging the filth with the end (30) of the movable trap (3) in the downward position, the maximum lowered position is inclined toward the inner wall surface side of the case body (6) in the reverse direction with respect to the external drain pipe connection portion of the case (6). By arranging them in a different position, scraping up of waste and toilet paper can be suppressed. In other words, the inclination can reduce the immersion of the terminal end (30) in the sewage, and as a result, scraping of the filth and toilet paper is prevented.

Such a matter is considered as the second aspect of the present invention.
It becomes more effective by combining the third aspect of the present application in which the end (30) of the movable trap (3) is not provided with a flange and the curved surface (33) is formed. In addition, for example, as in the above example, the flush toilet of the invention of this application is configured, but the movable trap (3) and the case body (6) in which the movable trap (3) is housed are made as small as possible and as compact as possible. Needless to say, it is preferable to be advantageous in terms of manufacturing cost.

From this point of view, it is desired that the case body (6) should be appropriately shaped for molding with a resin or the like. The following points must be considered for mass production of the case body (6). (I) Mold shape: Many removal directions are required, and it is difficult to use a shape that does not come out. (II) Compact shape: Need to be as compact as possible to fit in the toilet. (III) Odor-proof: Shaft If you make a crease, the odor may leak during sliding. (IV) Fluidity: It is necessary to make the shape easy to flow so that sewage does not clog in the chute. (IV) Although it is necessary to consider this as a premise, in view of the point (I), for example, in FIG. 4, it cannot be divided by a line below the line A corresponding to the maximum projecting position of the case body (6). This is because it becomes difficult to pull out. on the other hand,
Considering the point (III), it is easy to pull out, but cannot be divided by the line B. Thus, taking into account the point (II), it can be concluded that the division at line A is optimal. When divided by the line A in this manner, the case body (6) can be manufactured with the most compact shape while suppressing the material and the manufacturing cost.

For example, as in the case body (6) described above,
It goes without saying that various other aspects are possible for the structure of the flush toilet of the present invention and the manufacture of detailed members.
In any aspect, the invention of this application provides an automatic drain mechanism-type flush toilet having excellent performance as described in the examples.

[0030]

As described above in detail, according to the invention of this application, the first invention, the third invention and the fourth invention make it possible to move the movable trap from the opening at the terminal end to the lateral direction and further backward. The flow of sewage is prevented, and most of the accumulated water and washing water are effectively used for carrying and discharging the sewage and toilet paper, and the adhesion of the sewage and toilet paper to the outer periphery of the movable trap is also prevented.

Further, according to the second and third aspects of the present invention, there is no problem that the waste and the toilet paper are scraped when the movable trap is inverted from the discharge of the waste.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a flush toilet and a side view showing a partial cross section of a terminal member of a movable trap showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view, a partial cross-sectional plan view, and a front view of the movable trap terminating member in FIG.

FIG. 3 is a vertical sectional view showing a movable trap operation of the flush toilet of FIG. 1;

FIG. 4 is a cross-sectional view illustrating splitting of a case body.

FIG. 5 is a longitudinal sectional view of a conventional flush toilet.

FIG. 6 is a longitudinal sectional view seen from the opposite side to FIG. 5;

FIG. 7 is a longitudinal sectional view showing an operation of a movable trap of a conventional flush toilet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor 2 Rotary shaft 3 Movable trap 4 Boil 5 Drainage channel 6 Case body 7 Rim 8 Solenoid valve 9 Control part 30 Termination 31 Trap hose 32 Termination member 33 Curved surface 34 Curved notch surface a Front b Lateral direction c Back α, β Center

Claims (4)

[Claims] A rotary shaft of a movable trap, which is disposed in a drainage passage extending from a bowl of a toilet body and is housed in a case body communicating with an external drainage pipe, is electrically connected to a control unit to control operation. An automatic discharge mechanism-type flush toilet, wherein the free end of the movable trap is connected to a motor to be rotated, and the free end of the movable trap is capable of rotating and reversing in the vertical direction with the rotation of the rotating shaft by the operation of the motor. When the end of the trap is in the initial water flow with the upward position, this end is disposed at a position inclined toward the inner wall surface of the case in the rotating direction, wherein the flush toilet is of an automatic discharge mechanism type. 2. The flush toilet according to claim 1, wherein the end of the movable trap is located at a downward position, and when the waste is discharged, the end of the movable trap is positioned such that the maximum lowering position of the movable trap is opposite to the direction of the external drain pipe connecting portion of the case body. An automatic flushing-type flush toilet characterized by being disposed at a position inclined toward a wall surface. 3. A rotation axis of a movable trap, which is disposed in a drainage passage extending from a bowl of the toilet body and is housed in a case body communicating with an external drainage pipe, is electrically connected to a control unit to control operation. An automatic discharge mechanism-type flush toilet, which is connected to a motor to be driven, and a free end of a movable trap is capable of rotating and reversing in the vertical direction with the rotation of a rotating shaft by the operation of the motor, and has a cross section. The end of the cylindrical movable trap as a free end has no flange portion and is formed in an arc shape bulging at a central portion rather than an upper and lower portion along the direction of rotation and inversion. Washing toilet with automatic discharge mechanism. 4. A rotating shaft of a movable trap, which is disposed in a drainage passage extending from a bowl of the toilet body and housed in a case body communicating with an external drainage pipe, is electrically connected to a control unit to control operation. An automatic discharge mechanism-type flush toilet, which is connected to a motor to be driven, and a free end of a movable trap is capable of rotating and reversing in the vertical direction with the rotation of a rotating shaft by the operation of the motor, and has a cross section. The automatic discharge is characterized in that the end of the cylindrical movable trap as a free end has a shape in which the lower edge along the direction of rotation and reversal of the movable trap is curvedly cut from the left and right to the center. A mechanical flush toilet.