CN102953421A

CN102953421A - Water flushing toilet bowl

Info

Publication number: CN102953421A
Application number: CN2012102608648A
Authority: CN
Inventors: 山崎优; 井上正明; 中村匡宏; 渡邉谦治
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2011-08-24
Filing date: 2012-07-25
Publication date: 2013-03-06
Anticipated expiration: 2032-07-25
Also published as: JP4941796B1; JP2013044178A; TWI548799B; TW201309875A; CN102953421B

Abstract

The present invention provides a water flushing toilet bowl. Thus, cleaning water passing through an inner edge part can be prevented from flying outside the toilet bowl. The water flushing toilet bowl comprises a bowl part which is provided with a basin-shaped dirt carrying surface, an inner edge part formed on the upper edge part and a bench part formed between the inner edge part and the dirt carrying surface; a drainage bending pipe pipeline, an inlet of which is connected below the bowl part and used for discharging dirt; an inner edge water outlet for outputting cleaning water on the bench part of the bowl part to form convolution; and an inner edge water guide part for supplying cleaning water for the inner edge water outlet, the bowl part is provided with a front side area and a rear side area. the curvature radius of the front side area of the inner edge part of the bowl part is smaller than that of the rear side area, the inner edge water outlet is formed on any side inside the front side area of the inner edge part and used for outputting cleaning water toward the front part, and the cleaning water is convoluted toward the rear side area from the front side area after passing the front end part.

Description

Flush toilet

Technical field

The present invention relates to a kind of flush toilet, especially relate to utilizing from the washing water of cleaning water source supply and clean closet and discharge the flush toilet of dirt.

Background technology

In the past, as cleaning closet and discharging the flush toilet of dirt, the known flush toilet of putting down in writing just like patent documentation 1, make the shape that forms in interior week vertically or expand laterally of the inner edge portion on the pelvic part upper limb that is formed on flush toilet, washing water and form convolution stream spues from the inner edge guttation mouth that is formed on this inner edge portion rear side to horizontal direction, simultaneously from the below that is arranged on pelvic part and the injection guttation mouth of front end to the drain elbow guttation producing siphonage, thereby discharge dirt.

And, it is also known for the flush toilet of putting down in writing such as patent documentation 2, the front side zone and the rear side that form laterally for the pelvic part upper limb at closet in the inner edge portion of shape of expansion are regional, each free mutual identical and certain radius of curvature forms circular shape, near from front side zone from the sidepiece that forms linearity between the front side zone of the guttation mouth of closet rear side and inner edge portion to the inner edge portion this sidepiece is provided with interior side-prominent to prevent that washing water from being the platform return portion to the unit that the closet outside flies out to closet.

Patent documentation 1: the JP 2005-98003 of Japan communique

Patent documentation 2: the JP 2007-169964 of Japan communique

But, in the flush toilet that above-mentioned patent documentation 1 is put down in writing, owing to making the shape that forms in interior week vertically or expand laterally of the inner edge portion that is formed on the pelvic part upper limb, be provided with the position that radius of curvature that many places make the inner edge portion inner peripheral surface changes along the inner peripheral surface of inner edge portion is all-round, therefore the washing water that spues from inner edge guttation mouth has the problem that may cross inner edge portion and fly out to the closet outside along the inner edge portion convolution and when flowing.

And, in the flush toilet that above-mentioned patent documentation 2 is put down in writing, owing to the clean current that the guttation mouth from the closet rear side spues are regional at the circular-arc front side through inner edge portion, during from the sidepiece of linearity to circular-arc rear side zone-transfer, might shift swimmingly along the track on the water guide road of inner edge portion, in addition, in the rear side zone of inner edge portion, although be the shape that erects along vertical roughly, above-mentioned platform return portion still is not set yet, therefore, the problem that also exists washing water to fly out to the closet outside.

Summary of the invention

So the present invention carries out for the problem that solves above-mentioned prior art, its purpose is to provide a kind of flush toilet, and the washing water that can prevent from flowing through inner edge portion flies out to the outside of closet.

In order to reach above-mentioned purpose, to be a kind of utilization clean closet and discharge the flush toilet of dirt from the washing water of cleaning water source supply in the present invention, it is characterized in that, have: pelvic part, possess peviform dirt continuing surface, be formed at rising wood and inner circumferential surface form the inner edge portion that erects along vertical roughly and be formed on this inner edge portion and above-mentioned dirt continuing surface between platform section; The draining road makes its entrance be connected to the below of this pelvic part to discharge dirt; Water-discharge portion is at spue washing water and form convolution stream of the platform section of above-mentioned pelvic part; And water guide road, supply with washing water to this water-discharge portion, above-mentioned water-discharge portion is formed near the front end in the front side zone of above-mentioned inner edge portion, the rear side zone of above-mentioned inner edge portion by than the radius of curvature of the front end in the front side zone of above-mentioned inner edge portion greatly and roughly certain radius of curvature left and right symmetrically form, above-mentioned water-discharge portion is guttation forwards, formation is via the front end in the front side zone of above-mentioned inner edge portion, and flows to the convolution stream in the rear side zone of inner edge portion.

In the present invention who so consists of, because the washing water that near the water-discharge portion the leading section in the front side zone that is formed on inner edge portion forwards spues is via the front end in the front side zone of inner edge portion, when keeping the guttation flow of water, flow to smoothly the radius of curvature rear side zone larger than the radius of curvature of the front end of inner edge portion, and, the rear side zone left and right symmetrically of inner edge portion is formed by roughly certain radius of curvature, therefore can act on the mode utilization that the guttation flow of water is reduced the centrifugal force of washing water, make washing water around.Its result, according to the present invention, even the inner peripheral surface of inner edge portion is the shape that erects along vertical roughly, the washing water that also can prevent from flowing through inner edge portion flies out to the outside of closet, can be with the stronger flow of water to cleaning on a large scale in the pelvic part.

In the present invention, the inner edge portion of preferred above-mentioned pelvic part in above-mentioned front side zone, possess formed by the large radius of curvature of radius of curvature than above-mentioned rear side zone with above-mentioned front end near contiguous zone.

In the present invention who so consists of, because the inner edge portion of pelvic part is forwardly in the territory, lateral areas, possess formed by the radius of curvature larger than the radius of curvature in rear side zone with front end near contiguous zone, therefore spue and under the state that keeps the stronger flow of water, flow near the zone of vicinity the front end in the front side zone with the inner edge portion of pelvic part through the washing water of the front end of inner edge portion from water-discharge portion.This washing water flow through by than the large radius of curvature of radius of curvature in the rear side zone of inner edge portion that form with front side inner edge portion zone in front end near contiguous zone, keep thus from the stronger flow of water of the washing water in the front side zone of inner edge portion and under stable state, flow to smoothly the rear side zone of inner edge portion, therefore, even the inner peripheral surface of inner edge portion is the shape that erects along vertical roughly, the washing water that also can prevent from flowing through inner edge portion flies out to the outside of closet.

In the present invention, front end in the front side zone of preferred above-mentioned inner edge portion is formed by the radius of curvature of the all-round middle minimum of above-mentioned inner edge portion, above-mentioned water-discharge portion be adjacent to above-mentioned inner edge portion front end about any side, and be formed on from larger radius of curvature to small curvature radius on the part that changes.

In the present invention who so consists of, because the energy loss of the appropriateness that the washing water that the front end in the front side zone from water-discharge portion to inner edge portion spues with the stronger flow of water is produced by the front end in the front side zone of the inner edge portion that formed by minimum profile curvature radius the time, and moderately suppress the flow of water, therefore, can prevent that washing water from flying out because of the outside of the excessively strong flow of water to closet.

In the present invention, near the rising wood of the part till the front end of above-mentioned water-discharge portion to the front side zone of above-mentioned inner edge portion of the inner edge portion of preferred above-mentioned pelvic part is formed by outstanding to the inside overhanging shape.

In the present invention who so consists of, especially the rising wood of the part till the front end in the front side zone from water-discharge portion to the inner edge portion that possesses minimum profile curvature radius that easily dabbles is formed by outstanding to the inside overhanging shape, therefore, even just in case splash along the part of the front end of washing water in the front side zone from water-discharge portion to inner edge portion of inner edge portion convolution, also therefore the rising wood of the overhanging shape of running into inner edge portion because this splashes can prevent from dabbling to the outside of closet.

According to flush toilet of the present invention, the washing water that can prevent from flowing through inner edge portion flies out to the outside of closet.

Description of drawings

Fig. 1 is the schematic isometric of the flush toilet of expression one embodiment of the present invention.

Fig. 2 is the side sectional view that has omitted the state of toilet seat and toilet cover in the flush toilet of one embodiment of the present invention.

Fig. 3 is the top view of closet body of the flush toilet of expression one embodiment of the present invention.

Fig. 4 is the sectional view of observing along the IV-IV line of Fig. 3.

Fig. 5 is the sectional view of observing along the V-V line of Fig. 3.

Fig. 6 is the sectional view of observing along the VI-VI line of Fig. 3.

Fig. 7 is the sectional view of observing along the VII-VII line of Fig. 3.

Fig. 8 is the stereogram of water guide road integral body of the flush toilet of expression one embodiment of the present invention.

Fig. 9 is the amplification stereogram of the inner edge guttation mouth in the zone, front side in the pelvic part of the flush toilet of rear skew back beneath one embodiment of the present invention.

Figure 10 is the local amplification plan view of the place ahead part that amplifies the flush toilet of one embodiment of the present invention shown in Figure 3.

Figure 11 is the local amplification stereogram of inner edge guttation notch portion that amplifies the flush toilet of one embodiment of the present invention shown in Figure 2.

Figure 12 is the lateral view of the closet body of the state before the bonding process of flush toilet of expression one embodiment of the present invention.

Figure 13 is the front section view of the closet body of the state before the bonding process of flush toilet of expression one embodiment of the present invention.

Figure 14 is the 1st convolution track in diagrammatic illustration the 1st week of carrying out the inner edge guttation of inner edge when cleaning in the flush toilet of one embodiment of the present invention after spray cleaning beginning and the stereogram of the 2nd convolution track in the 2nd week.

Figure 15 is the stereogram that the convolution of diagrammatic illustration inner edge guttation in the flush toilet of one embodiment of the present invention flows to the state that flows down in the recess.

The result's that the velocity flow profile about inner edge guttation and injection guttation when Figure 16 (a) expression is carried out Closet bowl cleaning to the flush toilet that utilizes one embodiment of the present invention is resolved a example.And Figure 16 (b) is as the Comparative Examples of the analysis result shown in Figure 16 (a), expression when utilizing existing flush toilet to carry out Closet bowl cleaning about the inner edge guttation and spray the result that the velocity flow profile of guttation is resolved.

When Figure 17 (a) expression is carried out Closet bowl cleaning to the flush toilet that utilizes one embodiment of the present invention about the velocity flow profile of spraying guttation and the result's that mobility status is resolved a example.And Figure 17 (b) is as the Comparative Examples of the analysis result shown in Figure 17 (a), expression when utilizing existing flush toilet to carry out Closet bowl cleaning about the velocity flow profile of spraying guttation and the result that mobility status is resolved.

Symbol description

The 1-flush toilet; 2-closet body; 2a-downside closet body; 2b-upside closet body; The upper end of 2c-downside closet body; The bottom of 2d-upside closet body; The 4-toilet cover; 6-water storage tank (washing water is for water unit); The outfall of 6a-water storage tank; The 8-pelvic part; The upper end of 8a-pelvic part body; 10-water guide road; The common water guide of 10a-road; 10b-sprays the water guide road; The inlet portion on 10c-water guide road; 10d-inner edge water guide road; 12-drain elbow pipeline (draining road); The entrance of 12a-drain elbow pipeline; The rising road of 12b-drain elbow pipeline; The decline road of 12c-drain elbow pipeline; 14-dirt continuing surface; The lower edge of 14a-dirt continuing surface; The 16-inner edge portion; The leading section of 16a-inner edge portion; The over-hang part of 16b-inner edge portion; The rising portions of 16c-inner edge portion; 16d-becomes the consistent imaginary plane in surface with the inner peripheral surface of the rising portions of inner edge portion; The trailing edge of the over-hang part of 16e-inner edge portion; Inner peripheral surface in the concave shaped space of 16f-inner edge portion; 16g-inner edge portion inner wall part; 16h-inner edge portion outside wall portions; 16i-inner edge portion bottom surface sections; Facial on the 16j-inner edge portion; The bottom of 16k-inner edge portion inner wall part; The inner peripheral surface of 17-inner edge portion; The 17a-vertical guide; The 17b-horizontal plane; 18-platform section; The inner edge portion of 18a-platform section; The outer edge of 18b-platform section; The front end of 18c-platform section outer edge; The 20-recess; The bottom surface of 20a-recess; The wall of 20b-recess; 22-sprays guttation mouth (injection water-discharge portion); 24-draining bellmouth; 26-inner edge guttation mouth (inner edge water-discharge portion); Water flowing road in the 26a-inner edge guttation mouth; The rising wood on the water flowing road in the 26b-inner edge guttation mouth; The continuous forming portion of 26c-; The opening edge edge of 26d-inner edge guttation mouth; The prolongation on the water flowing road in the 26e-inner edge guttation mouth; The fore-and-aft direction center line of A1-pelvic part; The left and right directions center line of A2-pelvic part; The B-concave shaped space; The C-bonding wire; D1-sprays the guttation direction of guttation; The guttation direction of D2-inner edge guttation; The front side zone of F-pelvic part; The front side zone of F1-pelvic part; The front side zone of F2-pelvic part; The front side zone of F3-pelvic part; The convolution stream (main flow) in the 1st week of f1-; The f2-sinking; The convolution stream in the 2nd week of f3-; F4-tilts to circle round and flows; The f5-stream that circles round; The rear side zone of R-pelvic part; T1-the 1st convolution track; T2-the 2nd convolution track.

The specific embodiment

Below, describe with reference to the flush toilet of accompanying drawing to one embodiment of the present invention.

Fig. 1 is the schematic isometric of toilet seat of the flush toilet of expression one embodiment of the present invention.

As shown in Figure 1, the flush toilet 1 of one embodiment of the present invention is that the what is called that the fluviation of utilizing the drop of the water in the pelvic part to produce washes away dirt rushes the formula flush toilet, possesses: pottery closet body 2 processed; Toilet cover 4 covers and is disposed at this toilet seat (not shown) above closet body 2; Reaching and cleaning the water source is gravity water supply formula water storage tank 6, is installed in the rear portion of closet body 2, supplies water to closet body 2 thereby store the washing water that is used in Closet bowl cleaning.

In addition, as clean water source from washing water to closet body 2 that supply with, not being defined in the such water tank type structure of the gravity water supply formula water storage tank 6 shown in the present embodiment, also can be water pipe direct press type structure, the flushing valve type structure of directly utilizing the pressure of supply water of tap water, the aux. pressure that utilizes pump supplies with and clean Water structure.

Fig. 2 is the side sectional view that has omitted the state of toilet seat and toilet cover in the flush toilet of one embodiment of the present invention; Fig. 3 is the top view of the flush toilet of expression one embodiment of the present invention.

As shown in Figures 2 and 3, be formed with pelvic part 8 on the top, the place ahead of closet body 2.

And, be formed with water guide road 10 on the top, rear of closet body 2, spue from the washing water of water storage tank 6 supplies to pelvic part 8.

And being formed with the draining road of discharging the dirt in the pelvic part 8 below pelvic part 8 is drain elbow pipeline 12.

Pelvic part 8 possesses: the dirt continuing surface 14 of peviform; The inner edge portion 16 that forms along the rising wood of pelvic part 8; And be formed on platform section 18 between above-mentioned dirt continuing surface 14 and the inner edge portion 16.

And pelvic part 8 possesses recess 20, and it is formed on the lower zone of dirt continuing surface 14 and is connected with drain elbow pipeline 12, and this recess 20 possesses: bottom surface 20a; Reach wall 20b, connect the lower edge 14a of this bottom surface 20a and dirt continuing surface 14.

And, with respect to the center line A1(of the left and right directions of dividing pelvic part 8 equally with reference to Fig. 3), side wall surface 20b in recess 20 left sides when observing from the front side of closet body 2 is formed with and sprays guttation mouth 22, this injection guttation mouth 22 is connected in from the injection water guide road 10b of the common water guide road 10a branch on the water guide road 10 that describes in detail in the back, makes from the main flow of spraying the washing water that guttation mouth 22 spues in recess 20 interior convolutions.Thus, when spuing washing water from spraying guttation mouth 22, be not easy to expand laterally owing to the convolution stream f4 that sprays guttation becomes the recess 20 interior ponding of pelvic part 8, thereby the substantial middle that can make suspension class dirt concentrate on the ponding in the recess 20 is discharged effectively.And in the time of can more effectively suppressing washing water and will fly out laterally in the recess 20 of pelvic part 8, the inner edge guttation that spues and circle round from inner edge guttation mouth 26 described later flows down along pelvic part 8 and collides splashing of producing.

And, the rear of the recess 20 of the dirt continuing surface 14 of pelvic part 8 and below, the entrance 12a opening of above-mentioned drain elbow pipeline 12, rising road 12b rearward extends from this entrance 12a.Decline road 12c and this rising road 12b are continuous, and the lower end of decline road 12c is connected in underground discharge pipe (not shown) via draining bellmouth 24.

In addition, in the flush toilet 1 of present embodiment, the lower drainage type flush toilet that is connected in underground discharge pipe (not shown) with the lower end of the decline road 12c of drain elbow pipeline 12 is illustrated as an example, but be not defined in this mode, be configured in the rear wall side of flush toilet at the end of decline road 12c and can use in the upper drainage type flush toilet that is connected with ground discharge pipe yet.

Below, with reference to Fig. 2～Fig. 8, the water guide road 10 of impacts flush lavatory pan 1 is elaborated.

Fig. 4～Fig. 7 is respectively the sectional view of observing along the IV-IV line of Fig. 3, V-V line, VI-VI line and VII-VII line separately, and Fig. 8 is the stereogram of water guide road integral body of the flush toilet of expression one embodiment of the present invention.

Such as Fig. 2～shown in Figure 8, water guide road 10 possesses: common water guide road 10a, the inlet portion 10c that is connected from the outfall 6a with water storage tank 6 extend near the rear side of pelvic part 8; And spray water guide road 10b and inner edge water guide road 10d, near the branch respectively rear side of the pelvic part 8 of this common water guide road 10a.

Inner edge water guide road 10d near the rear side of pelvic part 8 from common water guide road 10a branch, with respect to the center line A1(that divides pelvic part 8 left and right directions equally with reference to Fig. 3), forwards extend along the inside of the inner edge portion 16 that is positioned at the left side when observing from the front side of closet body 2, the front side that extends to the closet body 2 in the front side zone F of inner edge portion 16 is configured in the left side when observing single inner edge guttation mouth 26(describes in detail in the back).

Spray water guide road 10b near the rear side of pelvic part 8 from common water guide road 10a branch, with respect to the center line A1(that divides pelvic part 8 left and right directions equally with reference to Fig. 3), forwards extend in the circuitous mode in the outside along the left side wall 20b of the recess 20 of pelvic part 8 when observing from the front side of closet body 2, extend to the injection guttation mouth 22 on the left side wall 20b that is formed on recess 20.This injection guttation mouth 22 is configured in rear side and is configured in the left side from forward observation pelvic part 8 time with respect to the inner edge guttation mouth 26 of inner edge portion 16 when dividing pelvic part 8 equally respectively along fore-and-aft direction and left and right directions.

In addition, inner edge guttation mouth 26 gets final product with any one same side of the left and right sides that injection guttation mouth 22 is formed on pelvic part 8.

And, inner edge guttation mouth 26 is formed on the front side by comparing with injection guttation mouth 22, even fly out laterally in the recess 20 of pelvic part 8 from the convolution stream (" convolution stream f4 tilts " described later) that sprays the washing water that guttation mouth 22 spues, the flow of water of convolution stream (" convolution stream f5 " described later) that also can be by the washing water that spues from inner edge guttation mouth 26 is suppressed.

And, as being used for before beginning at the inner edge guttation that is directed to the washing water of inner edge guttation mouth 26 from common water guide road 10a via inner edge water guide road 10d, make to be directed to the mode that the injection guttation of the washing water that sprays guttation mouth 22 begins via spraying water guide road 10b from common water guide road 10a and to set guttation means constantly, be set as the path L1 of inner edge water guide road 10d longer than the path L2 that sprays water guide road 10b.By setting like this, can when cleaning beginning, discharge the air that is present in the common water guide road 10a via spraying water guide road 10b from spraying guttation mouth 22, can be with the air of simple structure decrease from 26 discharges of inner edge guttation mouth by inner edge guttation mouth 26 beginning guttation the time.And the air that can prevent from flowing into inner edge water guide road 10d with washing water from common water guide road 10a is compressed and at the sound and splashing of spuing that produces when inner edge guttation mouth 26 is discharged, can prevent from dabbling to the outside of closet 1 in inner edge water guide road 10d.

And, even compressed air splashes when guttation mouth 22 is discharged by spraying with washing water in spraying water guide road 10b, also owing to spraying the below that guttation mouth 22 is positioned at pelvic part 8, be the side wall surface 20b of the recess 20 between dirt continuing surface 14 and the drain elbow pipeline 12, therefore can prevent from dabbling to the outside of closet 1.

And, even being present in air in the common water guide road 10a when cleaning beginning sneaks into from common water guide road 10a and flows to the washing water of inner edge water guide road 10d, also because inner edge guttation mouth 26 is formed on the front side zone F of pelvic part 8, therefore inner edge water guide road 10d is from extending to the long path of inner edge guttation mouth 26 near the rear side of the pelvic part 8 of common water guide road 10a, therefore, be in the state that is fully pulverized along the process Air that flows in the inner edge water guide road 10d, the sound and splashing of spuing that produces in the time of can suppressing from inner edge guttation mouth 26 guttation.

In addition, in the present embodiment, as the example that is used for before beginning inner edge guttation, beginning spraying the means of guttation, path L1 with inner edge water guide road 10d is set as the mode longer than the path L2 that sprays water guide road 10b to be illustrated, but be not defined in this mode, also can regulate in the inner edge water guide road and spray in the water guide road separately flow velocity, volume, before beginning inner edge guttation, to begin to spray guttation.

And the means as being used for discharging the air in the common water guide road 10a also can replace spraying water guide road 10b, arrange together that admittance water route 10a is communicated with in the recess 20 and the pipe component that connects.

Below, with reference to Fig. 3, Fig. 5～Fig. 7 and Fig. 9～Figure 11, the inner edge portion 16 of the pelvic part 8 of impacts flush lavatory pan 1, platform section 18 and inner edge guttation mouth 26 are elaborated.

Fig. 9 is the amplification stereogram of the inner edge guttation mouth in the zone, front side in the pelvic part of the flush toilet of rear skew back beneath one embodiment of the present invention; Figure 10 is the local amplification plan view of the place ahead part that amplifies the flush toilet of one embodiment of the present invention shown in Figure 3; Figure 11 is the local amplification stereogram of inner edge guttation notch portion that amplifies the flush toilet of one embodiment of the present invention shown in Figure 2.

Such as Fig. 3 and shown in Figure 10, pelvic part 8 possesses by the center line A2(that extends along the left and right directions of this pelvic part 8 with reference to Fig. 3) and divide front side zone F and the rear side zone R of pelvic part 8 equally at fore-and-aft direction.

And the front side of pelvic part 8 zone F possesses: regional F1, with respect to all side leading section 16a in the leading section 16a(of the inner peripheral surface 17 of center line A1 and inner edge portion 16) be configured to bilateral symmetry and comprise leading section 16a; Zone F2 is positioned at the rear side of this zone F1; Reach regional F3, be positioned at the more rear side of this zone F2.

Leading section 16a in the F1 of the front side of inner edge portion 16 zone possesses minimum radius of curvature ρ 1 in inner edge portion 16 all-round, inner edge guttation mouth 26 is formed on leading section 16a in the F1 of the front side of inner edge portion 16 zone and compares the front side zone F2 that is positioned at rear side, to this leading section 16a washing water that spues.

Namely, inner edge guttation mouth 26 is configured near the radius of curvature minimum section that is positioned at leading section 16a of inner edge portion 16, by the washing water that spues to this radius of curvature minimum section, can make guttation direction vector and the flow of water of the washing water that spues from inner edge guttation mouth 26 stable, can be under the state that keeps the stronger flow of water, behind the leading section 16a via inner edge portion 16, to the rear side zone R convolution of inner edge portion 16.Thus, can clean effectively the rear side zone R of easily dirty pelvic part 8, continue convolution by the washing water behind the R of rear side zone under the state that keeps the flow of water, therefore, what can prevent from circling round and to cause near the leading section 16a of inner edge portion 16 is clean bad.

And, the washing water that spues from inner edge guttation mouth 26 carries out the convolution in the 1st week along inner edge portion 16 after the radius of curvature minimum section of the leading section 16a by inner edge portion 16, when the radius of curvature minimum section by this inner edge portion 16 because the impact of the centrifugal force that acts on to inner edge portion 16 outsides, and the clean current that inhibition flows down from inner edge guttation mouth 26 to platform section 18, the convolution stream that therefore, can suppress in its platform section 18 of closing on the convolution of the 2nd week with finishing the convolution of the 1st week collides.

And, inner edge guttation mouth 26 is formed in the F2 of front side zone, namely with respect to the leading section 16a in the front side zone F1 of the inner edge portion 16 of pelvic part 8, the part that when the front side of closet body 2 is observed, is adjacent to the left side and changes from larger radius of curvature to small curvature radius towards the place ahead radius of curvature ρ 2 from the rear.Thus, the washing water that spues from inner edge guttation mouth 26 is under the state that keeps the stronger flow of water, arrive immediately the leading section 16a of inner edge portion 16, thereafter, can be to the rear side zone R convolution of inner edge portion 16, therefore, can prevent because making at the leading section 16a of the inner edge portion 16 of minimum profile curvature radius the washing water convolution cause cleaning bad.And, because the energy loss of the appropriateness that the washing water that the leading section 16a in the F1 of front side from from inner edge guttation mouth 26 to inner edge portion 16 zone spues with the stronger flow of water is produced by the front end in the regional F1 of front side of the inner edge portion 16 that formed by minimum profile curvature radius ρ 1 time, and moderately suppress the flow of water, can prevent that washing water from flying out to the closet outside because of the excessively strong flow of water.

And the rear side zone R of the inner edge portion 16 of pelvic part 8 forms the just round part (circular shape) that its major part possesses certain radius (radius of curvature ρ 3).Thus, owing to the positive radius of a circle of most of mean curvature radius ρ 3(at the rear side zone of the inner edge portion 16 of pelvic part 8 R) not changing, the energy loss of the washing water in the time of therefore can suppressing the rear side zone R by inner edge portion 16, washing water is circled round more effectively, can be threaded to next time at the state that keeps the stronger flow of water rear side zone R of inner edge portion 16, therefore, also can clean effectively the rear side zone R of easily dirty pelvic part 8.And, because the major part of the rear side of the inner edge portion 16 of pelvic part 8 zone R forms the just round part of predetermined radius (radius of curvature ρ 3), when the user observes from the place ahead oblique upper, because the major part of the rear side of the inner edge portion 16 of the most obvious pelvic part 8 zone R forms the just round part of predetermined radius (radius of curvature ρ 3), therefore can improve the overall appearance of pelvic part 8.

The inner edge portion 16 of pelvic part 8 possesses by radius of curvature ρ 4(ρ 4=ρ 2〉ρ 3 in the F of territory, lateral areas forwardly) front side that forms zone F3, this radius of curvature ρ 4 equates with radius of curvature ρ 2, and the radius of curvature ρ 3 than rear side zone R is large, near the leading section 16a in the contiguous front side of this front side zone F3 zone F1, be configured between front side zone F2 and the rear side zone R.Thus, from inner edge guttation mouth 26 spue and by the washing water behind the leading section 16a of inner edge portion 16 through with the front side zone F1 of the inner edge portion 16 of pelvic part 8 in leading section 16a near contiguous regional F2 under the state that keeps the stronger flow of water, flow to regional F3.This washing water flows through the regional F3 of front side of the inner edge portion 16 that is formed by the radius of curvature ρ 3 large radius of curvature ρ 4 than the rear side of inner edge portion 16 zone R, can keep thus from the stronger flow of water of the washing water of front side zone F1, the F2 of the inner edge portion 16 that is positioned at front side zone F3 front side and under stable state, flow to smoothly the rear side zone R of inner edge portion 16, even the inner peripheral surface 17 of inner edge portion 16 is the shapes that erect along vertical roughly, the washing water that also can prevent from flowing through inner edge portion 16 flies out to the outside of closet 1.

In addition, in the present embodiment, illustrated that radius of curvature ρ 1 with the front side of inner edge portion 16 zone F1 is set as the mode less than the radius of curvature ρ 3 of the rear side zone R of inner edge portion 16, but be not defined in this mode, the radius of curvature ρ 1 of the front side of inner edge portion 16 zone F1 can be set as with the radius of curvature ρ 3 of the rear side zone R of inner edge portion 16 yet and equate.Perhaps, also at least 1 radius of curvature of each radius of curvature ρ 1, the ρ 2 of each front side zone F1, F2 of each front side zone F1 of inner edge portion 16, F3, ρ 4 can be set as with the radius of curvature ρ 3 of the rear side zone R of inner edge portion 16 and equate.

The inner edge portion 16 of pelvic part 8 possesses the over-hang part 16b that forms overhanging shape, make inner edge guttation mouth 26 in lateral areas, the place ahead territory F2 towards front side until near the rising wood part of the part the leading section 16a in the F1 of the front side of inner edge portion 16 zone is outstanding to the inside, cover the top of inner edge guttation mouth 26 by this over-hang part 16b.

And the inner edge portion 16 of pelvic part 8 possesses rising portions 16c, and the zone of the inner peripheral surface 17 except over-hang part 16b is the shape that erects along vertical roughly.

So, form overhanging to the inside shape by over-hang part 16b among front side zone F1, the F2 near the leading section 16a of the inner peripheral surface 17 of inner edge portion 16, among near beyond the leading section 16a of inner edge portion 16 front side zone F3 and the rear side zone R, form the shape that erects along vertical roughly, therefore, near the leading section 16a of the inner edge portion 16 of minimum profile curvature radius ρ 1, can not occur to dabble to the outside of closet 1, can improve the flow of water of the washing water that spues from inner edge guttation mouth 26.And, can be threaded to next time at the state that fully keeps the stronger flow of water rear side zone R of inner edge portion 16, can clean more effectively the regional R of rear side of easily dirty pelvic part 8.

And, utilize the over-hang part 16b of front side zone F1, F2 the leading section 16a of inner edge portion 16 near, especially near the inner edge guttation mouth 26 of the inner edge portion 16 that easily dabbles, even splash, also therefore the rising wood of the over-hang part 16b that runs into inner edge portion 16 because this splashes can prevent from dabbling to the outside of closet 1.

And, because the inner peripheral surface 17 of the inner edge portion 16 of pelvic part 8 forms the shape that erects along vertical roughly except near the leading section 16a, even so contingency adhere to dirt, also become and easily wipe.

In addition, in the flush toilet 1 of present embodiment, illustrated that as an example the inner peripheral surface 17 of inner edge portion 16 possesses the mode of rising portions 16c, but also can replace this rising portions 16c, being set as overhanging shape along the roughly all-round of inner edge portion inner peripheral surface, also can be the open mode of so-called inner edge that makes along the inside on the inner edge water guide road of the circumferential formation of inner edge portion 16.

And inner edge guttation mouth 26 is compared with the height and position of the platform section 18 of pelvic part 8 and is positioned at predetermined distance h top, is formed on the upper end side of the inner edge portion 16 of pelvic part 8.Thus, the washing water that spues from inner edge guttation mouth 26 is near the leading section 16a that forms the inner edge portion 16 little through radius of curvature and in the current (convolution stream f1) of the rear side convolution of inner edge portion 16, formation is from the current (sinking f2) that the upper end side of inner edge portion 16 descends, and utilizes above-mentioned convolution stream f1 and the sinking f2 can be effectively to cleaning in the pelvic part 8.And, utilizing the washing water that spues from the inner edge guttation mouth 26 that is positioned at the higher position that is configured in inner edge portion 16 upper end side, can clean effectively near the leading section 16a of inner edge portion 16 of pelvic part 8.

And, because inner edge guttation mouth 26 is formed on the inner edge portion 16 of the 18 predetermined distance h of platform section top, the detailed content of the washing water that spues from inner edge guttation mouth 26 utilizes Figure 14 and Figure 15 to describe in the back, the convolution stream f1 of the 1st convolution track T1 in the 1st week can be to convolution in the platform section 18 with flowing down, the convolution stream f3 of the 2nd convolution track T2 in the 2nd week is in 18 convolutions of platform section, especially near the inner edge guttation mouth 26 that easily dabbles, can suppress to collide each other splashing of producing along the 1st convolution track T1 of inner edge portion 16 convolutions and the washing water of the 2nd convolution track T2.

And, because inner edge guttation mouth 26 is formed on the upper end side of the inner edge portion 16 of pelvic part 8, for the user who observes pelvic part 8 from the place ahead oblique upper, inner edge guttation mouth 26 enters the dead angle of the over-hang part 16b of inner edge portion 16 effectively, therefore, the user is not easy to see inner edge guttation mouth 26 more.And, the clean feel that the user experiences can be improved, and the overall appearance of pelvic part 8 can be improved.

And, inner edge guttation mouth 26 is formed on the inner edge portion 18a of the platform section 18 of pelvic part 8 and compares on the inner edge portion 16 that is positioned at the outside (the outer edge 18b side of platform section 18), detailed content utilizes Figure 14 and Figure 15 to describe in the back, and the 1st convolution track T1 is positioned at the outside with respect to the 2nd convolution track T2 under overlooking.Thus, especially near the inner edge guttation mouth 26 that easily dabbles, the washing water that can effectively suppress the 1st convolution track T1 and the 2nd convolution track T2 collides splashing of producing each other.

And, the inner edge portion 16 of pelvic part 8 possesses continuous forming portion 26c, from form inner edge guttation mouth 26 interior formed water flowing road 26a above rising wood 26b be formed to continuously the rising portions 16c of the inner peripheral surface 17 of the inner edge portion 16 that side downstream extends, when this continuous forming portion 26c observes from the front side of closet body 2 with respect to center line A1(with reference to Fig. 3) be positioned at the inner peripheral surface 17 of the inner edge portion 16 on right side.By this continuous forming portion 26c, the over-hang part 16b of the top and inner edge portion 16 of inner edge guttation mouth 26 is formed continuously, therefore, mobile smoothly along the inner peripheral surface 17 of inner edge portion 16 from the washing water that inner edge guttation mouth 26 spues.And, owing to forming through near the stream f1 of the convolution the leading section 16a of the little inner edge portion 16 of radius of curvature and sinking f2, therefore can clean effectively near the leading section 16a of inner edge portion 16 of pelvic part 8.And, form continuously by the inner peripheral surface 17 that makes rising wood 26b and inner edge portion 16, this rising wood 26b consists of the upper side of the water flowing road 26a that forms inner edge guttation mouth 26, the washing water that spues from inner edge guttation mouth 26 can utilize centrifugal force to flow smoothly along the inner peripheral surface 17 of inner edge portion 16, and the washing water that can suppress to circle round collides each other and splashes.

And, the over-hang part 16b of the front side of inner edge portion 16 zone F1, F2 from inner edge guttation mouth 26 forwards side extend to leading section 16a in the front side zone F1 of

inner edge portion

16,16a extends to continuous forming portion 26c from this leading section, observes the pelvic part 8 leading section 16a left and right symmetrically configuration with respect to inner edge portion 16 when interior from the top.So, because inner edge guttation mouth 26 is formed near the leading section 16a of inner edge portion 16, the over-hang part 16b of inner edge portion 16 covers inner edge guttation mouth 26, so the user can't see inner edge guttation mouth 26 when observing from the place ahead oblique upper.And, because the over-hang part 16b left and right symmetrically of inner edge portion 16 is formed near the leading section 16a of inner edge portion 16 of pelvic part 8, therefore can improve the overall appearance of pelvic part 8.

And the opening edge edge 26d of inner edge guttation mouth 26 rear sides tilts from the below upward towards the guttation direction of inner edge guttation mouth 26.Thus, the opening edge edge 26d of the inner edge guttation mouth 26 that the washing water utilization that spues from inner edge guttation mouth 26 is tilted upward from the below, form through near the leading section 16a of the little inner edge portion 16 of radius of curvature and to the current (convolution stream f1) of the rear side convolution of inner edge portion 16, form simultaneously the current (sinking f2) that descend from the upper end side of inner edge portion 16, utilize above-mentioned convolution stream f1 and sinking f2 can be effectively to clean near the leading section 16a to the inner edge portion 16 of pelvic part 8.

And, because the opening edge edge 26d of inner edge guttation mouth 26 tilts from the below upward towards the guttation direction, even the border at the 1st convolution track T1 and the 2nd convolution track T2 produces the section that cleans, the washing water that spues from inner edge guttation mouth 26 also can Doenward flow, prevents that this cleans section.

And, utilize the opening edge edge 26d of this inner edge guttation mouth 26 that tilts upward from the below towards the guttation direction, the part of the washing water that spues from inner edge guttation mouth 26 is descended, utilize the washing water of this decline, can more effectively suppress from the convolution stream f4 that sprays the washing water that guttation mouth 22 spues flying out to recess 20 outsides.And, in the recess 20 of pelvic part 8, by in the guttation that comes self-injection guttation mouth 22, adding the inner edge guttation of this decline, can generate the convolution stream f4 that possesses powerful turning power that has made up horizontal convolution stream and the stream that vertically circles round, can improve the dirt discharging performance.And what produce during for inner edge guttation and the collision of injection guttation splashes, and also can more effectively suppress.

The inner edge portion 16 of pelvic part 8 left and right symmetrically the regional R of the rear side of user in the pelvic part 8 that the place ahead oblique upper of pelvic part 8 can be seen, F3 zone, front side zone forms, for inner edge guttation mouth 26, make interior all sides open, but because the top is covered by over-hang part 16b, therefore the user who observes inner edge portion 16 from the place ahead oblique upper of pelvic part 8 but can't see, can improve the overall appearance of pelvic part 8.

Especially such as Fig. 9～shown in Figure 11, inner edge guttation mouth 26 is formed near the leading section 16a of inner edge portion 16 of pelvic part 8, inner peripheral surface 17 in the F1 of the front side of inner edge portion 16 zone forms overhanging shape by vertical guide 17a and the horizontal plane 17b that extends to the inside from this vertical guide 17a near the leading section 16a of inner edge portion 16.And, by this vertical guide 17a and horizontal plane 17b, near interior all side leading section 16a of inner edge portion 16 platform section 18 forms forwards outstanding concave shaped space B, and in this concave shaped space B, the vertical guide 17 of inner edge guttation mouth 26 and inner edge portion 16 forms continuously and makes the surface consistent.

Namely, inner edge guttation mouth 26 is formed in the concave shaped space B, this concave shaped space B is in the front side zone of the inner edge portion 16 of pelvic part 8 F1, F2, the imaginary plane 16d consistent with respect to 17 one-tenths surfaces of inner peripheral surface of the rising portions 16c that erects along vertical roughly with the formation of the rear side zone R of the inner edge portion 16 of pelvic part 8 and front side zone F3, form with Rack forwards and left and right directions give prominence to.The rising wood of this concave shaped space B is consistent with over-hang part 16b, and the lower end of the leading section 16a of the inner peripheral surface 16f in the concave shaped space B is consistent with the front end 18c of the outer edge 18b of platform section 18.

And, inner edge guttation mouth 26 be positioned at concave shaped space B rising wood 16b trailing edge 16e the place ahead and be positioned at the rear of front end 18c of the outer edge 18b of platform section 18, in concave shaped space B, be formed with inner peripheral surface 16f from the rear end of the opening edge edge 26d of inner edge guttation mouth 26 along concave shaped space B and extend near the leading section 16a water flowing road 26a, the prolongation 26e that extends through the forefront 16a of the inner peripheral surface 16f in the concave shaped space B from this water flowing road 26a is formed continuously to the continuous forming portion 26c of the inner edge portion inner peripheral surface 16c of its rear side in the concave shaped space B.Thus, the user who observes pelvic part 8 from the place ahead oblique upper is difficult to see inner edge guttation mouth 26, can improve the clean feel that the user experiences.

And detailed content utilizes Figure 14 and Figure 15 to describe in the back, the convolution direction of the washing water that spues from inner edge guttation mouth 26 and overlook the lower same direction that is from the convolution direction of spraying the washing water that guttation mouth 22 spues.And, spray the arrow D1 of guttation direction D1(Figure 14 of guttation mouth 22) be towards the oblique below in the place ahead, with the arrow D2 of guttation direction D2(Figure 14 of inner edge guttation mouth 26) roughly the same.

Below, with reference to Fig. 6, Figure 10, Figure 12 and Figure 13, the bonding process the when pottery of the flush toilet 1 of one embodiment of the present invention closet body 2 processed is made describes.

Figure 12 is the lateral view of the closet body of the state before the bonding process of flush toilet of expression one embodiment of the present invention; Figure 13 is the front section view of the closet body of the state before the bonding process of flush toilet of expression one embodiment of the present invention.

Such as Figure 12 and shown in Figure 13, the pottery of the flush toilet 1 of present embodiment closet body 2 processed possesses: downside closet body 2a possesses dirt continuing surface 14 and the platform section 18 of formation and removes the pelvic part 8 of inner edge portion 16; And upside closet body 2b, possess inner edge portion 16, when making closet body 2, after being formed separately in advance with downside closet body 2a, in bonding process along the all-round bonding bottom 2d of the upper end 2c of downside closet body 2a.This upside closet body 2b possesses in bonding process the inner edge portion 16 bonding with the upper end of pelvic part 8 bodies of downside closet body 2a.

And as shown in figure 13, the inner edge portion 16 of upside closet body 2b possesses: inner edge inner wall part 16g and inner edge outside wall portions 16h form respectively interior week and the periphery of this inner edge portion 16; Inner edge bottom surface sections 16i is in conjunction with two bottoms of above-mentioned inner edge inner wall part 16g and inner edge outside wall portions 16h; And facial 16j on the inner edge, in conjunction with two upper ends of above-mentioned inner edge inner wall part 16g and inner edge outside wall portions 16h, form inner edge water guide road 10d by facial 16j on above-mentioned inner edge inner wall part 16g, inner edge outside wall portions 16h, inner edge bottom surface sections 16i and the inner edge.Thus, the space utilization that facial 16j forms on will inner edge inner wall part 16g, inner edge outside wall portions 16h, inner edge bottom surface sections 16i and inner edge by inner edge portion 16 is inner edge water guide road 10d, do not need thus to arrange in addition the water guide road, can make closet body 2 become simple structure.And inner edge guttation mouth 26 is by being formed on the inner edge inner wall part 16g that is positioned at pelvic part 8 anterior position, and further becomes simple structure.

And, Fig. 6 and Figure 10 illustrate the closet body 2 of the state behind the bonding process of downside closet body 2a and upside closet body 2b, and the bonding wire C(boundary line of adhesive portion of the inner edge portion 16 of the pelvic part 8 of downside closet body 2a of inner edge portion 16 and upside closet body 2b is removed in expression) from above be positioned at the lower zone of inner edge bottom surface sections 16i under the overlooking of observing.Thus, even inner edge portion 16 is the state that bonding wire C is in the outer surface that is revealed in closet body 2 with the adhesive portion of removing the pelvic part 8 of this inner edge portion 16, be positioned at the lower zone of inner edge bottom surface sections 16i when also observing from the top owing to this boundary line C, therefore hidden by the inner edge bottom surface sections of inner edge portion and can't be in sight, can improve outside integral body attractive in appearance of closet 1.

And, such as Fig. 6 and shown in Figure 13, the bottom 16k that the adhesive portion of the body of the pelvic part 8 of downside closet body 2a and the inner edge portion 16 of upside closet body 2b is bonding wire C by the upper end 8a that makes pelvic part 8 in bonding process and inner edge inner wall part 16g carries out line and contacts, and form the body of pelvic part 8 and the boundary line of inner edge portion 16, can see this boundary line from the body of pelvic part 8 and the inboard of inner edge portion 16.Thus, when when making closet body 2, making inner edge portion 16 and the pelvic part 8 of removing this inner edge portion 16 bonding, can see that from the inboard of pelvic part 8 upper end 8a by the bottom that makes inner edge inner wall part 16g and the pelvic part 8 of removing inner edge portion 16 carries out line and contacts the boundary line (bonding wire C) that forms, therefore, can easily carry out closet body 2 in making inner edge portion 16 and remove the bonding process of the pelvic part 8 of inner edge portion 16.

Below, utilize Fig. 1～Figure 17, the effect (action) of the flush toilet of one embodiment of the present invention is described.

Figure 14 is the 1st convolution track in diagrammatic illustration the 1st week of carrying out the inner edge guttation of inner edge when cleaning in the flush toilet of one embodiment of the present invention after spray cleaning beginning and the stereogram of the 2nd convolution track in the 2nd week; Figure 15 is the stereogram that the convolution of diagrammatic illustration inner edge guttation in the flush toilet of one embodiment of the present invention flows to the state that flows down in the recess.

At first, when user operation is used for the action bars (not shown) of Closet bowl cleaning, beginning Closet bowl cleaning, the washing water in the water storage tank 6 via common water guide road 10a affluent-dividing to spraying water guide road 10b and inner edge water guide road 10c.And, behind injection guttation mouth 22 beginning guttations, postpone the beginning guttations from inner edge guttation mouth 26 at first.At this moment, spray the arrow D1 of guttation direction D1(Figure 14 of guttation mouth 22) be towards the oblique below in the place ahead, with the arrow D2 of guttation direction D2(Figure 14 of inner edge guttation mouth 26) roughly the same.

And, such as Figure 11 and shown in Figure 14, the main flow of the inner edge guttation that spues from inner edge guttation mouth 26 forms along the inner peripheral surface of inner edge portion 16 side flow forwards, through near the leading section 16a of the inner edge portion 16 of radius of curvature minimum and to the counterclockwise current of convolution (convolution stream f1) of the rear side of inner edge portion 16, the part of inner edge guttation forms the current (sinking f2) that descend from the upper end side of inner edge portion 16 simultaneously.And the inner edge guttation of finishing the 1st circumference supination forms the counterclockwise convolution stream f3 in the 2nd week in the inboard of the convolution stream f1 in the 1st week.

On the other hand, the injection guttation that spues towards the oblique below in the place ahead (guttation direction D1) from injection guttation mouth 22 forms along wall 20b and the bottom surface 20a of the front side in the recess 20 mobile, after rear side rises obliquely upward from the below and circles round, along the forwards and oblique inclination convolution stream f4 of below convolution of the wall 20b of the rear side in the recess 20.This inclination convolution stream f4 from above observe recess 20 and form counterclockwise convolution stream when interior to overlook, the convolution direction of inner edge guttation and the convolution direction of spraying guttation are same direction (turning anticlockwise) under overlooking.

And, as shown in figure 14, the washing water that spues from inner edge guttation mouth 26 is along the 1st convolution track T1 of inner edge portion 16 during with the convolution stream f1 convolution in the 1st week, with compare along the 2nd convolution track T2 during with the convolution stream f3 convolution in the 2nd week of inner edge portion 16 and platform section 18 after the convolution that finished for the 1st week with the 1st convolution track T1, be positioned at top and the outside.

Next, as shown in figure 14, inner edge guttation roughly keep circling round the counterclockwise flow of water of flow path direction and flow down in 20 along dirt continuing surface 14 to recess, the convolution stream interflow with injection guttation in the recess 20 possesses inclination convolution stream f4 comparatively powerful and fast turning power in recess 20 interior generations.

And, as shown in figure 15, also continue to carry out new inner edge guttation from inner edge guttation mouth 26 behind the inclination convolution stream f4 interflow of the injection guttation in inner edge guttation and the recess 20, when the water yield of the inner edge guttation of dirt continuing surface 14 convolution increases, the inclination convolution stream f4 of the injection guttation of convolution stream f5 in the recess 20 that has increased the inner edge guttation of the flow of water flows down and collaborates, and forms the current of the dirt in the powerful pushing of the entrance 12a recess 20 of drain elbow pipeline 12.

Finally, utilize the comparatively powerful turning power of the inclinations convolution stream f4 in the recess 20 after the inner edge guttation collaborates, can be from pelvic part 8 to the drain elbow pipeline the heavy dirt of 12 interior pushings, for the little suspension class dirt of proportion, utilize the very fast rotating inclination convolution stream f4 after collaborating, can send to drain elbow pipeline 12 from pelvic part 8.

The result's that the velocity flow profile about inner edge guttation and injection guttation when next, Figure 16 (a) expression is carried out Closet bowl cleaning to the flush toilet that utilizes one embodiment of the present invention is resolved a example; Figure 16 (b) is as the Comparative Examples of the analysis result shown in Figure 16 (a), expression when utilizing existing flush toilet to carry out Closet bowl cleaning about the inner edge guttation and spray the result that the velocity flow profile of guttation is resolved.

At first, the color of the washing water shown in Figure 16 (a) represents the flow velocity size of washing water, when observing the closet body 2 of flush toilet 1 of above-mentioned present embodiment from the top, the inner edge guttation mouth in pelvic part via the inner edge portion front end until the counterclockwise rear side of convolution zone, and near the injection guttation mouth of recess and front side regional in, can obtain the larger flow velocity of washing water.

Relative therewith, the flush toilet of the Comparative Examples shown in Figure 16 (b) is different from the mode of the flush toilet 1 of present embodiment, it is provided with the mode of spraying the guttation mouth for the side wall surface that is provided with 2 inner edge guttation mouths (the 1st and the 2nd inner edge guttation mouth) and recess one side in pelvic part in the rear side zone of inner edge portion, at the inner edge portion front end in pelvic part near the zone the 2nd inner edge guttation mouth of rear side, the flow velocity of comparing washing water with the flush toilet 1 of present embodiment is less, and the cleaning strength of the flush toilet of present embodiment is compared with existing flush toilet more and improved as can be known.

When next, Figure 17 (a) expression is carried out Closet bowl cleaning to the flush toilet that utilizes one embodiment of the present invention about the velocity flow profile of spraying guttation and the result's that mobility status is resolved a example; Figure 17 (b) is as the Comparative Examples of the analysis result shown in Figure 17 (a), expression when utilizing existing flush toilet to carry out Closet bowl cleaning about the velocity flow profile of spraying guttation and the result that mobility status is resolved.

At first, the streamline color of the washing water shown in Figure 17 (a) represents the flow velocity size of washing water, when observing from the side the closet body 2 of flush toilet 1 of above-mentioned present embodiment, the injection guttation that spues towards the oblique below in the place ahead from the injection guttation mouth of the recess of pelvic part as can be known forms along the front side wall in the recess and bottom surface and flows, after rear side rises obliquely upward from the below and circles round, along the forwards and oblique inclination convolution stream f4 of below convolution of the rear side wall in the recess.

Relative therewith, the flush toilet of the Comparative Examples shown in the flush toilet of the Comparative Examples shown in Figure 17 (b) and Figure 16 (b) is same mode, from spraying injection guttation that the guttation mouth spues towards the side wall surface of the recess relative with spraying the guttation mouth current that rear formation descends to the recess bottom surface that spue.Thereby, the flow velocity of the convolution stream in the recess of the flush toilet of Comparative Examples and turning power and the inclination convolution of the brute force of the flush toilet 1 of the present embodiment shown in Figure 17 (a) are flowed a little less than the flow velocity of f4 and turning power compare, current to the pushing of drain elbow pipeline are also less, therefore, the flush toilet of present embodiment is compared the discharging performance that can more improve dirt with existing flush toilet as can be known.

Flush toilet 1 according to an embodiment of the invention described above, because the washing water that the inner edge guttation mouth 26 of the front side zone F2 the leading section 16a in the front side zone F1 that is formed on inner edge portion 16 near forwards spues is via the leading section 16a in the front side zone F1 of inner edge portion 16, when keeping the guttation flow of water, flow to smoothly the radius of curvature rear side zone R larger than the radius of curvature ρ 1 of the leading section 16a of inner edge portion 16, and, the rear side zone R left and right symmetrically of inner edge portion 16 is formed by roughly certain radius of curvature ρ 3, therefore can act on the mode utilization that the guttation flow of water is reduced the centrifugal force of washing water, make washing water around.Its result, even the inner peripheral surface 17 of inner edge portion 16 is the shapes that erect along vertical roughly, the washing water that also can prevent from flowing through inner edge portion 16 flies out to the outside of closet 1, can be with the stronger flow of water to cleaning on a large scale in the pelvic part.

And, flush toilet 1 according to present embodiment, because the inner edge portion 16 of pelvic part 8 is forwardly in the F3 of territory, lateral areas, is formed by the radius of curvature ρ 3 large radius of curvature ρ 4 than rear side zone R, therefore spue and under the state that keeps the stronger flow of water, flow to the contiguous regional F2 of front side of interior all side leading section 16a in the front side zone F1 with the inner edge portion 16 of pelvic part 8 through the washing water of the leading section 16a of inner edge portion 16 from inner edge guttation mouth 26.This washing water flows through the regional F3 of front side of the inner edge portion 16 that is formed by the radius of curvature ρ 3 large radius of curvature ρ 4 than the rear side of inner edge portion 16 zone R, keep thus from the stronger flow of water of the washing water of the front side of inner edge portion 16 zone F1 and under stable state, flow to smoothly the rear side zone R of inner edge portion, therefore, even the inner peripheral surface 17 of inner edge portion 16 is the shapes that erect along vertical roughly, the washing water that also can prevent from flowing through inner edge portion 16 flies out to the outside of closet 1.

And, flush toilet 1 according to one embodiment of the present invention, because the energy loss of the appropriateness that the washing water that the interior all side leading section 16a in the F1 of front side from from inner edge guttation mouth 26 to inner edge portion 16 zone spue with the stronger flow of water is produced by the leading section 16a in the regional F1 of front side of the inner edge portion 16 that formed by minimum profile curvature radius ρ 1 time, and moderately suppress the flow of water, therefore, can prevent that washing water from flying out because of the outside of the excessively strong flow of water to closet 1.

And, flush toilet 1 according to one embodiment of the present invention, especially the rising wood of the part till the leading section 16a in the front side zone F1 from inner edge guttation 26 to the inner edge portion 16 that possesses minimum profile curvature radius ρ 1 that easily dabbles possesses the over-hang part 16b that is formed by outstanding to the inside overhanging shape, therefore, even just in case splash along the part of the leading section 16a of washing water in the F1 of the zone of the front side from inner edge guttation mouth 26 to inner edge portion 16 of inner edge portion 16 convolution, also owing to this over-hang part 16b that splashes and run into inner edge portion 16, therefore can prevent from dabbling to the outside of closet 1.

In addition, in the flush toilet 1 of above-mentioned present embodiment, the formula flush toilet that liquidates as an example is illustrated, thereby but also can be to utilize siphonage and suck the so-called siphon type flushing lavatory pan of dirt from the drain elbow pipeline to the disposable discharge in outside in the pelvic part.

And, in the flush toilet 1 of above-mentioned present embodiment, illustrated when spraying water guide road 10b and spraying the injection guttation of guttation mouth 22, carry out the mode of the inner edge guttation of inner edge water guide road 10d and inner edge guttation mouth 26, but be not limited to this mode, spray the injection guttation of water guide road 10b and injection guttation 22 for omission, and only carry out the mode of the inner edge guttation of inner edge water guide road 10d and inner edge guttation mouth 26, also can use.

Claims

1. flush toilet is to utilize from the washing water of cleaning water source supply to clean closet and discharge the flush toilet of dirt, it is characterized in that having:

Pelvic part, possess peviform dirt continuing surface, be formed at rising wood and inner circumferential surface form the inner edge portion that erects along vertical roughly and be formed on this inner edge portion and above-mentioned dirt continuing surface between platform section;

The draining road makes its entrance be connected to the below of this pelvic part to discharge dirt;

Water-discharge portion is at spue washing water and form convolution stream of the platform section of above-mentioned pelvic part;

And the water guide road, supply with washing water to this water-discharge portion,

Above-mentioned water-discharge portion is formed near the front end in the front side zone of above-mentioned inner edge portion, the rear side zone of above-mentioned inner edge portion by than the radius of curvature of the front end in the front side zone of above-mentioned inner edge portion greatly and roughly certain radius of curvature left and right symmetrically form, above-mentioned water-discharge portion is guttation forwards, formation is via the front end in the front side zone of above-mentioned inner edge portion, and flows to the convolution stream in the rear side zone of inner edge portion.

2. flush toilet according to claim 1 is characterized in that, the inner edge portion of above-mentioned pelvic part in above-mentioned front side zone, possess formed by the large radius of curvature of radius of curvature than above-mentioned rear side zone with above-mentioned front end near contiguous zone.

3. flush toilet according to claim 1, it is characterized in that, front end in the front side zone of above-mentioned inner edge portion is formed by the radius of curvature of the all-round middle minimum of above-mentioned inner edge portion, above-mentioned water-discharge portion be adjacent to above-mentioned inner edge portion front end about any side, and be formed on from larger radius of curvature to small curvature radius on the part that changes.

4. flush toilet according to claim 3 is characterized in that, near the rising wood of the part till the front end of above-mentioned water-discharge portion to the front side zone of above-mentioned inner edge portion of the inner edge portion of above-mentioned pelvic part is formed by outstanding to the inside overhanging shape.