JP5149652B2 - Flush toilet - Google Patents

Description

  The present invention relates to a water-saving / silent flush toilet that collects water in a bowl and discharges filth together with drainage by rotating the bent pipe in the vertical direction.

  The present applicant has developed and provided a flush toilet with an automatic discharge mechanism in which water is accumulated in a bowl and waste is discharged together with drainage by rotating the bent pipe in the vertical direction (Patent Document 1). Such).

  In addition, the present applicant has proposed a flush toilet as illustrated in FIG. 4 by improving the performance of the flush toilet and adding various improvements (Patent Document 2).

  As shown in FIG. 4, the flush toilet 1 provided by the present applicant is rotated from the upstream side to the downstream side of the drainage path from the bowl 2 to the external drainage pipe 3 constructed in the toilet. A bent tube 6 having an open end 5 at its tip, such as a bellows tube that can be automatically rotated up and down by the rotational force of a motor transmitted to the rotation shaft 4 around the shaft 4, and the bent tube 6 inside. The basic feature is that a discharge chamber 7 is provided which houses and discharges the filth and drainage discharged from the open end 5 to the external drainage pipe 3.

  And in the flush toilet 1 described in patent document 2, it extends toward the discharge chamber 7 from the bowl 2, and the lower part of the drain pipe part 8 to which the edge part on the opposite side to the open end 5 of the bending pipe 6 is connected to a front-end | tip part. In addition, a horizontal piping 9 that connects and connects the discharge chamber 7 and the external drainage pipe 3 is provided, and the distal end of the horizontal pulling pipe 9 opposite to the discharge chamber 7 and the external drainage pipe 3 are approximately 90 °. It is possible to connect with the elbow 10 which is bent, and it is possible to cope with various drainage pipe structures constructed in the toilet, and the construction restrictions are eliminated.

Further, in the flush toilet 1 described in Patent Document 2, a rectifying unit that rectifies the drainage discharged into the discharge chamber 7 as the open end 5 of the bent tube 6 substantially downward is provided. It is formed from an L-shaped tubular body having openings in two orthogonal directions connected to the distal end portion on the open end 5 side. When the bent pipe 6 faces substantially side when discharging dirt and waste water, the L-shaped tube body has an opening on the opposite side to the bent pipe 6 facing downward, and the waste water flowing out from this opening is substantially omitted from the discharge chamber 7. By rectifying downward and functioning as a rectifying unit, the turbulent flow of the waste water in the discharge chamber 7 can be suppressed to improve water saving and noise reduction.
Japanese Patent Laid-Open No. 9-256447 JP 2005-273336 A

  On the other hand, a new improvement point was found for the flush toilet with the automatic discharge mechanism as described above.

  As shown in FIG. 4, the drainage path from the bowl 2 to the external drainage pipe 3 in the flush toilet 1 is continuous as a whole, but individually, the drainage is performed at the open end 5 of the bent pipe 6. As shown in FIG. 4, the overflow water overflowing from the open end 5 does not travel anywhere until the bent pipe 6 is directed substantially to the side during discharge. After passing through the lower surface of the bending tube 6, it falls to the bottom of the discharge chamber 7. Even if the rectifying unit is provided, Patent Document 2 only presents the L-shaped tube, and the L-shaped tube has an opening serving as a drain outlet with respect to the tip of the bent tube 6. Because of the standing up, such overflow of water cannot be eliminated. Due to the structure of the bent tube 6, there is a difference in height between the open end 5 and the bottom of the discharge chamber 7, so that abnormal noise such as popping and picking is generated due to the fall of overflow water.

  The present invention has been made in view of the circumstances as described above, and provides a flush toilet capable of suppressing the generation of abnormal noise caused by the overflow of overflow water overflowing from the open end of a bent tube during discharge. Is an issue.

  The present invention is characterized by the following in order to solve the above problems.

That is, according to the first aspect of the present invention, a bent tube that can be rotated in the vertical direction is housed in the discharge chamber, and the bent tube can form a water pool in the bowl by directing the open end upward. In the flush toilet that allows the filth in the bowl to be discharged together with stored water and washing water when the open end is directed downward, the open end of the bent tube is positioned lower than the height direction of the discharge chamber at the time of discharge It is characterized in that a protrusion protruding outward is provided on the outer edge portion on the side to be operated.

  According to a second aspect of the present invention, in the first feature described above, the protrusion has a substantially triangular shape in a plan view, has a tapered shape, is formed of two protrusions, and is a protrusion farther from the bent tube. A slit is formed between the tips of the pieces.

According to the first aspect of the invention, since the protrusion that protrudes outward is provided at the outer edge of the open end of the bent tube at the lower side with respect to the height direction of the discharge chamber at the time of discharge , Sometimes, when the bent tube rotates downward, the overflow water overflowing from the open end reaches the inner wall of the discharge chamber closer to the protrusion along the protrusion, and flows down along the inner wall of the discharge chamber. The overflow water overflowing from the open end during discharge does not travel anywhere, and after flowing through the lower surface of the bent pipe from the open end, it is suppressed from falling to the bottom of the discharge chamber. Abnormal noises such as poto-poto and pica-pica due to the overflow of overflow water are unlikely to occur.

  Also, just before the end of discharge, overflow water may form water droplets on the bottom of the discharge chamber, but the water droplets are small enough that the dripping noise is unlikely to be annoying. Therefore, it drops away from the open end and is not easily transmitted to the bent tube. Generation of abnormal noise is suppressed.

  According to the second aspect, it is possible to reliably realize the effect of suppressing the occurrence of abnormal noise produced by the first aspect.

  FIG. 1 and FIG. 2 are exploded perspective views of a main part showing an embodiment of the flush toilet according to the present invention at different angles. 1 and 2 show the periphery of the open end 5 of the bent tube 6 which is particularly characteristic in the flush toilet of the present invention. Specifically, the periphery of the open end 5 of the bent tube 6 housed in the discharge chamber 7 in a state where the lid 11 forming the upper end portion of the discharge chamber 7 shown in FIG. 4 is removed is illustrated. .

  The flush toilet 1 shown in FIG. 1 and FIG. 2 is based on the flush toilet 1 shown in FIG. 4, and the portions other than those described below are the same as those in the flush toilet 1 shown in FIG. The basic structure of the street is followed. Therefore, the basic configuration is omitted in the following description.

  In addition, the discharge chamber 7 is provided with a lid 11 that forms the upper end portion shown in FIG. 4 so as to be detachable. The discharge chamber 7 has a flange 13 provided on the outer periphery of the upper end of the main body 12 of the discharge chamber 7. The through holes 14 are formed at predetermined intervals, similarly, the flanges provided on the outer periphery of the lower end of the lid body 11 are overlapped, and the lid body 11 can be attached and detached by screwing in the holes 14.

  In the flush toilet 1 shown in FIGS. 1 and 2, a protrusion 15 is provided on the outer side of the open end 5 on the side 5 a where drainage flows from the bent pipe 6 into the discharge chamber 7 during discharge. The side 5a of the open end 5 from which the drainage flows out of the bent tube 6 into the discharge chamber 7 during discharge is one side of the open end 5 located farther from the bowl 2 when described with reference to FIG. In the flush toilet 1 shown in FIG. 4, the overflow water overflows from the open end 5 when discharged. In other words, it is the side located on the lower side of the open end 5 at the time of discharge with respect to the height direction of the discharge chamber 7.

  Thus, in the flush toilet 1 shown in FIG. 1 and FIG. 2, the protrusion 15 which protrudes outside is formed on the outer edge of the open end 5 on the side where the drainage flows out from the bent tube 6 into the discharge chamber 7 during discharge. Is provided.

  Specifically, the protrusion 15 has a substantially triangular outer shape in a plan view and a shape with a tapered tip, and is formed in a beak shape from the two protruding pieces 16. The two projecting pieces 16 extend to the outer side substantially right next to the side 5 a of the open end 5 and extend obliquely on substantially the same plane, and the distance between the distal ends 17 far from the bent tube 6 is close to the bent tube 6. It is closer than the connection end connected to the open end 5 on the other side. A slit 18 is formed between the tips 17 of the two protruding pieces 16.

In the flush toilet 1 shown in FIGS. 1 and 2, as described above, the protrusion 15 protruding outside the open end 5 is provided. Therefore, as shown in FIG. When There is rotated downward, the open end 5 is tilted, but the drainage from the side 5a of the same height as the water level in the bowl 2 overflows as an overflow water, overflow water, the projection 15 is accompanied with the protrusion 15 It reaches the inner wall of the near discharge chamber 7 and flows down along the inner wall of the discharge chamber 7. As in the flush toilet 1 shown in FIG. 4, the overflow water does not travel anywhere, and after the overflow water flows from the open end 5 along the lower surface of the bent pipe 6, It is suppressed that it falls to. Therefore, although there is a difference in height between the open end 5 and the bottom of the discharge chamber 7 due to the structure of the bent tube 6, abnormal noise such as potting and picking due to the overflow of overflow water hardly occurs.

  Moreover, in the flush toilet 1 shown in FIG. 1 and FIG. 2, the protrusion 15 is formed from two protrusions 16, and has a shape in which the outer shape is a substantially triangular shape in plan view, Since the slit 18 is formed, the overflow water jumps out of the slit 18 and is easily transmitted to the inner wall near the protrusion 15 of the discharge chamber 7, so that the overflow water is surely dropped directly to the bottom of the discharge chamber 7. Is suppressed.

  When the discharge is about to end, the bent tube 6 rotates upward as shown in FIG. 3 <b> to form a water pool in the bowl 2 and return to the initial state so as to seal water. At this time, since the overflow water has no momentum, it may form water droplets on the bottom of the discharge chamber 7, but the water droplets are small enough that the dripping noise is unlikely to be disturbing. Further, since it is accompanied by the protrusion 15, it is dropped away from the open end 5 and is not easily transmitted to the bent tube 6. Furthermore, a capillary phenomenon etc. also arise with the slit 18, and overflow water leaves | separates from the open end 5 reliably by the protrusion piece 16, and goes to an outer side reliably.

  As described above, in the flush toilet 1 shown in FIG. 1 and FIG. 2, even when the discharge is about to end, abnormal noises such as potopoto and picchapic due to the fall of overflow water are unlikely to occur.

  In general, the flush toilet 1 shown in FIG. 1 and FIG. 2 can suppress the generation of abnormal noise due to the overflow of overflow water overflowing from the open end 5 of the bent tube 6 at the time of discharge.

  Note that in FIG. 3 <a> <b>, parts corresponding to the parts shown in FIG.

It is the principal part disassembled perspective view which showed one Embodiment of the flush toilet bowl of this invention. It is the principal part perspective view which changed the angle and showed the flush toilet shown in FIG. <a> <b> is a cross-sectional view of the relevant part showing the state of the flush toilet shown in FIGS. 1 and 2 when discharged together with the flow of overflow water. It is principal part sectional drawing which showed the flush toilet bowl used as the premise of the flush toilet bowl of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Bowl 5 Open end 6 Bending tube 7 Discharge chamber 15 Protrusion 16 Protrusion piece 17 Tip 18 Slit

Claims (2)

A bent tube that can rotate in the vertical direction is housed in the discharge chamber, and the bent tube can form a water pool in the bowl by turning the open end upward, and the open end is directed downward by rotating the bent tube. In the flush toilet, which can sometimes discharge the filth in the bowl together with the reservoir water and washing water , outside the outer edge of the bent tube at the lower end of the discharge chamber at the open end of the bent tube A flush toilet, characterized in that a protrusion is provided on the top of the toilet. The projection has a substantially triangular shape in plan view, has a tapered shape, is formed from two projecting pieces, and a slit is formed between the tips of the projecting pieces far from the bent tube. The flush toilet according to claim 1, wherein

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