JP2015206179A - Water closet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water closet such that dirt hardly sticks on a toilet bowl part and a water reserving plane can be made small.SOLUTION: There is provided a water closet T which washes a toilet bowl part 11 with washing water to discharge dirt, and the water closet has a drain passage 12 provided to be linked to a rear part of the toilet bowl part 11, and is provided with a projection 22 which is positioned in level with a water reserving face 21 and projects inward at at least one of both right and left wall parts at the rear part of the toilet bowl part 11, the projection 22 being provided behind a substantially center position in a front-rear direction, where a lateral width is maximum, on the water reserving face 21.

Description

  The present invention relates to a flush toilet bowl.

  2. Description of the Related Art Conventionally, a flush toilet that cleans a toilet bowl with washing water and discharges filth is known. For example, the flush toilet bowl described in Patent Document 1 below has a large circular water surface so that dirt is less likely to adhere to the toilet bowl.

JP 2002-138555 A

  However, in the configuration as described above, the washing water swirls vigorously along the circular peripheral wall of the reservoir surface, and the flow toward the drainage channel may be weakened. Ingenuity was desired.

  This invention is completed based on the above situations, Comprising: It aims at providing the flush toilet bowl which can discharge | emit waste well.

  The present invention is a flush toilet that flushes the toilet bowl with washing water and discharges filth, and has a drainage channel provided in communication with the rear part of the toilet bowl part, in the rear part of the toilet bowl part At least one of the left and right wall portions is provided with a convex portion that is located at the height of the water storage surface and protrudes inward, and the convex portion is substantially the front-rear direction in which the lateral width of the water storage surface is maximum. It is provided behind the intermediate position.

  According to the present invention, since the washing water is guided to the drainage channel by the convex portion at the rear portion of the stored water surface, the filth can be discharged well.

Side sectional view showing a flush toilet in this example Top view showing flush toilet It is sectional drawing which shows the shape of the wall part of a toilet bowl part, Comprising: Sectional drawing corresponded in the cross section in the AA position of FIG. It is sectional drawing which shows the shape of the wall part of the toilet bowl part including the upper end part of a convex part, Comprising: Sectional drawing corresponded in the cross section in the BB position of FIG. It is sectional drawing which shows the shape of the wall part of the toilet bowl part including the intermediate part of a convex part, Comprising: Sectional drawing corresponded in the cross section in CC position of FIG. It is sectional drawing which shows the shape of the wall part of the toilet bowl part including the part located in the height of a stored water surface among convex parts, Comprising: Sectional drawing corresponded in the cross section in the DD position of FIG. It is sectional drawing which shows the shape of the wall part of the toilet bowl part including the lower end part of a convex part, Comprising: Sectional drawing corresponded in the cross section in the EE position of FIG.

Preferred embodiments of the present invention are shown below.
In the flush toilet of the present invention, the convex portion may be provided so as to extend upward from a height position of the water storage surface. According to such a configuration, the washing water that has risen at the time of washing is also guided to the drainage by the swirling force being weakened by the convex portion, so that the waste can be discharged more satisfactorily.

  Further, the flush toilet of the present invention is provided at the front part of the convex part provided on the wall part on the side where the wash water swirling in the circumferential direction in the toilet bowl part flows in the circumferential direction among the left and right wall parts. May be provided with a guide surface for guiding the washing water to flow into the drainage channel. According to such a configuration, the washing water that swirls in the toilet bowl and flows from the front to the rear quickly flows into the drainage channel by the guide surface provided at the front portion of the convex portion, and thus discharges filth well. be able to.

  In the flush toilet of the present invention, the rear part of the convex part provided on the wall part on the side where the wash water swirling in the circumferential direction in the toilet bowl part flows in the circumferential direction among the left and right wall parts. A guide surface for guiding the washing water to flow into the drainage channel may be provided. According to such a configuration, the washing water that swirls in the toilet bowl and flows forward after flowing into the drainage channel quickly by the guide surface provided at the rear part of the convex part, so that the filth can be discharged well. Can do.

<Example>
Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS.
The flush toilet T in the present embodiment is a toilet that cleans the toilet bowl 11 with washing water and discharges filth, and the toilet bowl body 10 communicates with the toilet bowl 11 and the rear part of the toilet bowl 11. And a drainage channel 12 provided below the lever.

  As shown in FIG. 1, a rim water passage 13 is provided at the upper peripheral edge of the toilet bowl 11. The rim water passage 13 has an overhanging shape on the inside so that the washing water is not scattered outside.

The toilet bowl 11 is provided with a water outlet (not shown) that opens to be continuous with the rim water passage 13, and the wash water discharged from the water outlet is circumferential along the rim water passage 13 in the circumferential direction of the toilet bowl 11. In one direction (in this embodiment, a counterclockwise direction).
A step portion 14 having a substantially horizontal surface is formed at the lower end of the toilet bowl 11. An opening 15 communicating with the drainage channel 12 is provided at the rear portion of the stepped portion 14.

  The drainage channel 12 rises obliquely rearward continuously to the lower end of the first descending flow channel 12F, and the first descending flow channel 12F descending obliquely rearward to the opening 15 formed at the lower end of the toilet bowl portion 11. And a second descending flow path 12H inclined obliquely downward from the upper end of the ascending flow path 12G toward the downstream side (see FIG. 1). The second descending flow path 12 </ b> H is formed in the drain pipe portion 16 that protrudes rearward from the rear wall portion of the toilet body 10. A drain connection pipe (not shown) is connected to the downstream end of the drain pipe section 16.

  Wash water is retained in the lower end portion of the toilet bowl 11 located below the upper end of the ascending channel 12G, the first descending channel 12F, and the ascending channel 12G to form a water seal. An upper end of the ascending flow path 12G is a top portion 17 of the drain trap, and an opening at the upstream end of the first descending flow path 12F is an entrance of the drain trap (hereinafter referred to as a trap entrance 18). In the following, the portion of the toilet body 10 where the washing water is retained is referred to as a reservoir portion 19.

The height position of the water storage surface 21 (initial water storage water level) of the water storage section 19 is the same as the height position of the top 17 of the drain trap, and is located slightly above the step section 14.
As shown in FIG. 6, the shape of the water storage surface 21 is a pentagon as a whole, and has a maximum width dimension (a dimension in the left-right direction) at an intermediate portion in the front-rear direction. The substantially front half portion of the water storage surface 21 has a triangular shape, and the left and right edges extend linearly in an oblique direction toward the front end. Note that the front end portion of the water storage surface 21 is rounded.

  The substantially second half portion of the water storage surface 21 has a trapezoidal shape, the rear edge extends in the left-right direction, and the left and right side edges are curved so as to protrude inward by providing convex portions 22 described later.

  Now, the left and right wall portions in the rear portion of the toilet bowl 11 are provided with convex portions 22 that are located at the height of the water storage surface 21 and project inward. The convex portion 22 is provided on the rear side (the side of the trap inlet 18) from the substantially intermediate position in the front-rear direction in which the lateral width is maximum on the water storage surface 21.

  As shown in FIG. 1, the convex portion 22 is provided so as to extend above the height position of the water storage surface 21. The upper end of the convex part 22 has reached the maximum rising position where the pool surface 21 rises during cleaning.

  As a whole, the convex portion 22 has a shape in which the width dimension in the front-rear direction gradually increases from the upper end toward the lower side. In addition, the protruding portion 22 is configured such that the protruding dimension gradually increases from both ends in the front-rear direction toward the approximate center in the front-rear direction.

  An apex (a projecting end at the center in the front-rear direction) 23 of the convex portion 22 is formed in a substantially linear shape in the vertical direction from the upper end to the lower end of the convex portion 22. Further, the protruding dimension of the vertex 23 of the convex portion 22 is gradually increased downward from the upper end of the convex portion 22, and at the upper end portion of the convex portion 22, as shown in FIG. It is a dimension.

  Note that the left and right wall portions provided with the convex portions 22 are inclined so as to approach the opening 15 downward (the width between the left and right wall portions narrows). The peripheral surface is formed in a flat form with almost no steps.

  Of the pair of convex portions 22 provided on the left and right wall portions, the wall portion on the side where the wash water that rotates counterclockwise in the toilet bowl portion 11 flows from the front to the rear (in this embodiment, the left wall portion) In the following, the front of the convex portion (hereinafter referred to as the first convex portion 22F) provided on the first wall portion 24) guides the washing water to flow into the drainage channel 12. One guide surface 25 is provided. The 1st guide surface 25 is formed in the part ahead rather than the vertex 23 of the 1st convex part 22F. The first guide surface 25 is inclined by the first guide surface 25 so that the washing water changes its direction toward the entrance of the drainage channel 12.

  Of the pair of convex portions 22 provided on the left and right wall portions, the wall portion on the side where the wash water that rotates counterclockwise in the toilet bowl portion 11 flows from the rear to the front (in this embodiment, the right wall) In the rear part of the convex portion (hereinafter referred to as the second convex portion 22S) provided on the second wall portion 26, the cleaning water is guided to flow into the drainage channel 12. A second guide surface 27 is provided. The second guide surface 27 is formed at a portion on the rear side of the vertex 23 of the second convex portion 22S. The second guide surface 27 is inclined by the second guide surface 27 so that the washing water changes its direction toward the entrance of the drainage channel 12.

  In the flush toilet T having such a configuration, when toilet flushing is performed, the wash water discharged from the spout flows along the rim water passage 13 and swivels counterclockwise on the surface of the toilet bowl 11. Flow down. The direction of the flow of the cleaning water that has reached the water storage surface 21 is changed by the first guide surface 25 or the second guide surface 27 and flows into the drainage channel 12. Further, the washing water whose swirling force has been weakened by the convex portion 22 flows into the drainage channel 12 vigorously, and the swirling flow is prevented from greatly expanding, and the floating filth is swirled without being pushed outward. It is collected near the center and is effectively fed into the drainage channel 12. Therefore, filth can be discharged well from the toilet bowl 11.

Next, operations and effects of the embodiment configured as described above will be described.
The flush toilet T of the present embodiment is a toilet for washing the toilet bowl 11 with washing water and discharging filth, and has a drainage channel 12 provided in communication with the rear part of the toilet bowl 11, The left and right wall portions in the rear part of the pot portion 11 are provided with convex portions 22 that are located at the height of the water storage surface 21 and protrude inward, and the convex portion 22 is the front-rear direction in which the lateral width of the water storage surface 21 is maximum It is provided behind the substantially intermediate position.

  According to this configuration, since the washing water is guided to the drainage channel 12 by the convex portion 22 at the rear portion of the water storage surface 21, the filth can be discharged well.

  Further, the convex portion 22 is provided so as to extend upward from the height position of the water storage surface 21. According to this configuration, not only the water storage surface 21 but also the width of the portion located above the water storage surface 21 can be narrowed, so that it is possible to prevent the cleaning water rising during cleaning from being greatly enlarged and swirled.

  Moreover, the front part of the 1st convex part 22F provided in the 1st wall part 24 provided in the side in which the wash water which turns inside the toilet bowl part 11 in the circumferential direction among both right and left wall parts flows back from the front, and the toilet bowl The cleaning water swirling in the circumferential direction in the portion 11 is guided so that the cleaning water flows into the drainage channel 12 at the rear of the second convex portion 22S provided on the second wall portion 26 on the side where the cleaning water flows forward from the rear. A first guide surface 25 and a second guide surface 27 are provided. According to this configuration, the wash water swirled in the toilet bowl 11 is guided to the first guide surface 25 or the second guide surface 27 provided on the first convex portion 22F or the second convex portion 22S and promptly. Since it flows into the drainage channel 12, filth can be discharged well.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above-described embodiment, the swirling direction of the cleaning water is counterclockwise. On the contrary, the swirling direction of the cleaning water may be clockwise. In that case, you may provide a guide surface in the rear part of the convex part provided in the left wall part, or the front part of the convex part provided in the right wall part.
(2) In the said Example, although the convex part 22 was provided in the right-and-left both wall part, you may provide a convex part only in any one wall part among not only this but a right-and-left both wall part.
(3) In the above-described embodiment, the guide surface is provided on any of the convex portions 22 provided on both the left and right wall portions. The guide surface may be provided only on the portion, or no guide surface may be provided on any of the convex portions.
(4) In the above embodiment, the convex portion 22 is provided above the height position of the water storage surface 21, but not limited to this, the convex portion is formed only at the height position of the water storage surface, for example. May be.

T ... Flush toilet 11 ... Toilet bowl 12 ... Drainage channel 21 ... Reservoir surface 22 ... Convex part 24 ... 1st wall part (wall part along the side where washing water is along)
25. First guide surface (guide surface)
26 ... 2nd wall part (wall part on the side where washing water hits)
27 ... Second guide surface (guide surface)

Claims (4)

A flush toilet that cleans the toilet bowl with wash water and discharges filth.
A drainage channel provided in communication with the rear part of the toilet bowl,
At least one wall portion of the left and right wall portions in the rear portion of the toilet bowl portion is provided with a convex portion that protrudes inwardly located at the height of the reservoir surface,
The convex portion is a flush toilet provided on the rear side of a substantially intermediate position in the front-rear direction in which the lateral width is maximum in the water storage surface.   The flush toilet according to claim 1, wherein the convex portion is provided so as to extend upward from a height position of the water storage surface.   In the front part of the convex part provided on the wall part on the side where the wash water swirling in the circumferential direction in the toilet bowl part among the left and right wall parts flows from the front to the rear, the wash water is supplied to the drainage channel. The flush toilet according to claim 1 or 2, wherein a guide surface for guiding the inflow is provided. The washing water flows into the drainage channel at the rear part of the convex part provided on the wall part on the side where the washing water swirling in the circumferential direction in the stool part of the left and right wall parts flows from the rear to the front. The flush toilet bowl according to any one of claims 1 to 3, further comprising a guide surface that guides the user.

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