JP2014005594A - Flush toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flush toilet bowl capable of preventing washing water from splashing to the outside of a toilet bowl beyond a rim section even when the rim section is formed with its inner peripheral surface erected in an almost vertical direction to an upper edge section since rectified washing water is respectively discharged from a first discharge port section and a second discharge port section.SOLUTION: A flush toilet bowl includes: a bowl section having a dirt receiving surface, a rim section formed with its inner peripheral surface erected in an almost vertical direction to the upper edge section of the toilet bowl and a shelf section; a drainage channel; a first discharge port section on the shelf section of the bowl section; a second discharge port section for discharging washing water in the same direction as the revolving direction of washing water to be discharged from the first discharge port section; and a water guide passage for supplying washing water to the first discharge port section and the second discharge port section. The first discharge port section is formed with a first rectification channel extended to a predetermined length with a cross section smaller than the cross section of the water guide passage, and the second discharge port section is formed with a second rectification channel extended to a predetermined length with a cross section smaller than the cross section of the water guide passage.

Description

  The present invention relates to a flush toilet, and more particularly, to a flush toilet that flushes toilets with wash water supplied from a wash water source and discharges filth.

  For example, as disclosed in Patent Document 1, the rim portion of the entire circumference of the bowl portion of the flush toilet is formed as a vertical upright wall, and the rim wash water flowing into the rim conduit is directed toward the bowl surface of the bowl portion. Two rim spouts, a first rim spout and a second rim spout, which are ejected in the same manner, and irrigate the swirling water in the same circumferential direction from the first rim spout and the second rim spout A flush toilet that cleans the bowl is known.

JP 2005-98003 A

  However, in the flush toilet of Patent Document 1, since the wash water is directly jetted from the rim conduit to the bowl surface of the bowl portion, the wash water is supplied from the first rim spout and the second rim spout. Water is sprinkled into the bowl part in a turbulent state, and the wash water spouted from the first rim spout and the second rim spout may collide with each other, causing water splashing, and the rim part is formed as a vertical standing wall In the flush toilet, there is a problem that water jumps out of the toilet beyond the rim.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, since the rectified wash water is discharged from the first water discharge port and the second water discharge port, respectively. Even if the rim part is formed so that its inner peripheral surface rises in a substantially vertical direction up to the upper edge part, it is possible to prevent the washing water from jumping out of the toilet beyond the rim part. The purpose is to provide a toilet.

In order to achieve the above object, the present invention is a flush toilet that flushes toilets with washing water supplied from a washing water source and discharges wastes, the bowl-shaped waste receiving surface, and the waste receiving surface A bowl portion provided with a rim portion formed so that an inner peripheral surface thereof rises in a substantially vertical direction, and a shelf portion formed between the rim portion and the waste receiving surface, From the drainage channel where the inlet is connected to the lower part of the bowl part to discharge the filth, the first water outlet part that spouts the washing water onto the shelf part of the bowl part to form a swirling flow, and from the first water outlet part A second water discharge port that discharges the wash water in the same direction as the swirling direction of the discharged water, and a water conduit that supplies the wash water to each of the first water discharge port and the second water discharge port. The first water outlet has a cross-sectional area smaller than the cross-sectional area of the water conduit and a predetermined length. Flow channel is formed, the second spout section, is characterized in that the second rectifying passage and a predetermined length in the cross-sectional area smaller than the cross-sectional area of the water conduit is formed.
In the present invention configured as described above, a first rectifying channel having a cross-sectional area smaller than the cross-sectional area of the water conduit and a predetermined length is formed in the first water outlet, and the second water outlet is guided to the second water outlet. Since the second rectification flow path having a cross-sectional area smaller than the cross-sectional area of the water channel and a predetermined length is formed, the wash water flowing into the first water discharge port portion and the second water discharge port portion from the water conduit is respectively The flow is rectified by the one rectifying channel and the second rectifying channel. As a result, according to the present invention, since the rectified washing water is discharged from the first water discharge port portion and the second water discharge port portion, the inner peripheral surface of the rim portion is almost vertical to the upper edge portion. Even if it is formed so as to rise in the direction, it is possible to prevent the washing water from jumping out of the toilet beyond the rim.

In the present invention, preferably, the first water discharge port portion and the second water discharge port portion are each formed in a rectangular shape whose cross section is long in the vertical direction.
In the present invention configured as described above, each of the first water discharge port portion and the second water discharge port portion is formed in a rectangular shape that is long in the vertical direction. Since the wash water discharged from the part swirls on the shelf and along the inner peripheral surface of the rim part in a rectified state, the wash water jumps out of the toilet beyond the rim part. Can be prevented.

In the present invention, preferably, the first rectifying flow path of the first water discharge port includes a shelf, a bowl portion inner wall portion formed on the shelf and protruding inward of the bowl portion, and the bowl portion inner wall. Formed by the upper wall portion connecting the upper end of the rim portion and the inner peripheral surface of the rim portion and the inner peripheral surface of the rim portion, and the second rectifying flow path of the second water discharge port portion is formed on the shelf portion and the shelf portion. Further, it is formed by an inner wall portion of the bowl portion that protrudes inward of the bowl portion, an upper wall portion that connects the upper end of the inner wall portion of the bowl portion and the inner peripheral surface of the rim portion, and an inner peripheral surface of the rim portion. ing.
In the present invention configured as described above, first, the inner wall portion of the bowl portion of the first rectifying flow path of the first water discharge port portion is formed on the shelf portion so as to protrude to the inside of the bowl portion. When the wash water spouted from the two spouts swivels on the shelf and reaches the vicinity of the first spout, it is guided along the inner peripheral surface of the bowl inner wall of the first spout. Therefore, it can suppress that it collides violently with the wash water discharged from the 1st water discharge port part. Furthermore, since the inner wall portion of the bowl portion of the second rectifying flow path of the second water discharge port portion is formed so as to protrude on the shelf portion and inside the bowl portion, the wash water discharged from the first water discharge port portion is When the swivel is turned and reaches the vicinity of the second water discharge port, it is guided along the inner peripheral surface of the inner wall of the bowl portion of the second water discharge port so that water is discharged from the second water discharge port. It is possible to suppress a violent collision with the washing water. As a result, according to the present invention, it is possible to prevent the wash water from colliding and splashing outside the toilet bowl at the first and second water discharge ports.

In the present invention, preferably, the inner wall portion of the bowl portion of the first water discharge port portion and the inner wall portion of the bowl portion of the second water discharge port portion are formed so as to protrude to the vicinity of the inner end of the shelf portion.
In the present invention configured as described above, the cleaning water discharged from the first water discharge port portion reaches the vicinity of the inner end of the shelf along the inner wall portion of the bowl portion when reaching the vicinity of the second water discharge port portion. When the washing water guided and flows down toward the waste receiving surface and further spouted from the second spout reaches the vicinity of the first spout, the inside of the shelf along the inner wall of the bowl Since it is guided to the vicinity of the end and flows down toward the filth receiving surface, it is possible to prevent the wash water from colliding violently at the first water discharge port and the second water discharge unit, so that the wash water is outside the toilet. It is possible to prevent water splashing.

In this invention, Preferably, the 1st rectification flow path of a 1st water discharge port part and the 2nd rectification flow path of a 2nd water discharge port part are formed in 15 mm-25 mm length.
In the present invention configured as described above, the first rectifying channel of the first water outlet and the second rectifying channel of the second water outlet are formed to have a length of 15 mm to 25 mm. Water can be sufficiently rectified, and a portion having a relatively large radius of curvature of the inner peripheral wall surface of the rim portion can be increased along the entire circumference of the bowl portion, so that water splash can be prevented.

In the present invention, preferably, the first water discharge port and the second water discharge port have a ratio of the vertical length of these cross-sectional shapes to the horizontal length of 2: 1 to 5: 1. Is formed.
In the present invention configured as described above, the first water outlet and the second water outlet are formed into a rectangular cross-sectional shape that is long in the vertical direction, and the wash water discharged from the first water outlet. The wash water discharged from the second water discharge port is swung along the vertical inner wall surface of the vertical rim portion in a rectified state. It is possible to prevent water from splashing out of the toilet bowl beyond the rim formed so that the peripheral wall surface rises substantially vertically.

  According to the flush toilet of the present invention, since the rectified wash water is discharged from the first water outlet and the second water outlet, respectively, the inner peripheral surface of the rim portion is almost the same as the upper edge. Even if it is formed so as to rise in the vertical direction, it is possible to prevent the washing water from jumping out of the toilet beyond the rim.

It is a top view of the flush toilet according to one embodiment of the present invention. It is side surface sectional drawing seen along the II-II line | wire of FIG. It is side surface sectional drawing seen along the III-III line of FIG. It is sectional drawing seen along the IV-IV line of FIG. It is the fragmentary sectional view seen along the VV line of FIG. It is the fragmentary sectional view seen along the VI-VI line of FIG.

Hereinafter, a configuration of a flush toilet according to an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a plan view of a flush toilet according to an embodiment of the present invention, FIG. 2 is a side sectional view taken along line II-II in FIG. 1, and FIG. 4 is a side cross-sectional view taken along line -III, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  As shown in FIGS. 1 to 4, reference numeral 1 is a so-called wash-out type flush toilet, in which filth is washed away by flowing water due to a drop of water in the bowl portion. This flush toilet 1 is a ceramic toilet A bowl portion 4 is formed on the front side of the upper part of the toilet body 2, a water conduit 6 is formed in the upper part on the rear side, and a drain trap that communicates with the bowl part 4 below the water conduit 6. Pipe lines 8 are respectively formed. The flush toilet 1 can also be applied to siphon-type toilets, siphon-jet type toilets, and the like other than wash-out type toilets. Furthermore, the toilet bowl body 2 can be applied to a toilet bowl made of resin, a toilet bowl using a distributor, and the like other than a ceramic toilet bowl.

  The flush toilet 1 further includes a water storage tank (not shown) which is a washing water supply means for storing and supplying the wash water attached to the rear part of the toilet body 2, and this water storage tank (not shown). Is provided with a drain valve (not shown) so that the drain valve is opened by the operation of a user's operation lever (not shown) or the like, so that flush water is supplied to the water conduit 6 of the toilet body 2. It has become.

The bowl portion 4 has a filth receiving surface 10 formed in a bowl shape, a rim portion 12 formed on the upper edge of the entire circumference of the bowl portion 4, and a shelf shape between the rim portion 12 and the filth receiving surface 10. And a shelf portion 14 formed on the surface.
The rim portion 12 includes an inner peripheral surface 12a formed on the filth receiving surface 10 and formed in a standing wall shape so as to rise substantially vertically from the outer peripheral end of the shelf portion 14 to the upper edge portion of the toilet body 2. Yes. Therefore, compared with the rim portion having an overhang shape in which the top portion of the conventional rim portion overhangs toward the inside of the bowl portion, the rim portion 12 of the flush toilet 1 of the present embodiment has water splashing from the inside of the bowl portion 4. In addition, the water splash can easily jump over the rim portion 12 to the outside.
A reservoir 16 is formed below the bowl 4. A jet outlet 18 for discharging the cleaning water supplied from the water conduit 6 is formed on the left side as viewed from the front of the filth receiving surface 10 of the bowl portion 4 above the water storage surface W ₀ of the water storage portion 16. The stored water in the water storage section 16 is swung up and down by the cleaning water discharged from the jet water outlet 18. The inlet 8a of the drain trap pipe 8 described above is opened below the water reservoir 16, and the lower end of the descending path 8b of the drain trap pipe 8 is a drain pipe under the floor via a drain socket (not shown). (Not shown).

  In the flush toilet 1 of the present embodiment, a floor drainage type toilet in which the lower end of the descending path 8b of the drain trap pipe 8 is connected to a discharge pipe (not shown) below the floor will be described as an example. However, the present invention is not limited to such a configuration, and the present invention is also applicable to a floor drainage type toilet in which the end of the descending path 8b is disposed on the rear wall side of the flush toilet and is connected to a discharge pipe on the floor. . The water supply source for supplying cleaning water to the bowl portion 4 is not limited to the gravity water supply type tank structure shown in the present embodiment, but also uses a direct supply pressure of tap water, or is supplemented by a pump. Such a structure may be used.

  The water conduit 6 extends forward from an inlet 6a connected to a flush water inlet (not shown) of a water storage tank (not shown), and branches to the left when viewed from the front of the toilet bowl. 6b, a second water outlet side water conduit 6c that branches to the right side when viewed from the front of the toilet, and a jet water outlet side water conduit 6d that branches to the center lower part of the water conduit 6, respectively. The water conduit 6b communicates with the first water outlet 20 that discharges forward from the toilet left side, and the second water outlet side water conduit 6c communicates with the second water outlet 22 that discharges leftward from the toilet right side to discharge the jet. The water inlet side water conduit 6 d communicates from the lower center of the water conduit 6 to the jet outlet 18.

  The first water discharge port portion 20 is formed so as to protrude in a so-called tunnel shape from the inner peripheral surface 12a of the rim portion 12 at the left rear portion when viewed from the front of the bowl portion 4, and the second water discharge port portion 22 Projecting in a so-called tunnel shape from the inner peripheral surface 12a of the rim portion 12 in the rear portion on the right side as viewed from the front of the portion 4 (the portion behind the first water discharge port portion 20 with respect to the swirling direction of the washing water). Is formed. The wash water in the water storage tank (not shown) passes from the first water outlet 20 through the water supply passage 6 (not shown) disposed on the bottom surface of the water storage tank (not shown) through the water conduit 6. On the shelf 14 between the rim portion 12 and the filth receiving surface 10 and on the inner peripheral surface 12a of the rim portion 12, water is discharged in the forward direction of the toilet and a swirling flow is formed. The swirling flow is formed on the portion 14 in the same direction as the water discharge direction of the wash water from the first water discharge port portion 20 (the direction of swirling on the shelf 14 toward the front of the toilet), and the swirling flow is formed. A downward flow that flows from the inner peripheral surface 12a of the rim portion 12 through the shelf portion 14 while turning in the direction of the water storage portion 16 on the filth receiving surface 10 is formed.

Next, the first water discharge port 20 and the second water discharge port 22 described above will be described in detail with reference to FIGS.
5 is a partial cross-sectional view taken along line VV in FIG. 1, and FIG. 6 is a partial cross-sectional view taken along line VI-VI in FIG.

The first water discharge port portion 20 extends upward from the shelf portion 14 and is disposed so as to protrude from the inner peripheral surface 12a of the rim portion 12 and protrude toward the inside of the bowl portion 4. A wall 20a and a first rectifying flow path upper wall 20b that connects the upper end of the first rectifying flow path bowl inner wall 20a and the inner peripheral surface 12a of the rim 12 in a substantially horizontal direction. The rim portion 12 is surrounded by the shelf portion 14 of the bowl portion 4, the first rectifying channel bowl portion inner wall portion 20 a, the first rectifying channel upper wall 20 b, and the inner peripheral surface 12 a of the rim portion 12. The first water discharge port 20c that opens to the front side along the inner peripheral surface 12a, the shelf portion 14 of the bowl portion 4, the first rectifying flow channel bowl portion inner wall portion 20a, the first rectifying flow channel upper wall 20b, and the rim portion 12 from the inner peripheral surface 12a, from the water conduit 6 to the first water outlet 20c. A first rectifier flow path 20d for rectifying the flow of the washing water over to is formed.
The first rectifying flow path bowl portion inner wall portion 20a of the first water discharge port portion 20 forms a standing wall formed so as to rise substantially vertically upward from the shelf portion 14 of the bowl portion 4, and its rear end is a rim portion. 12 is connected to the curved surface of the inner peripheral surface 12a of the rim 12 so as to be smoothly continuous, and the front end of the rim portion crosses the shelf 14 diagonally to the vicinity of the inner end 14a of the shelf 14 inside the bowl 4 It is extended so that the arc which has a curvature radius comparatively smaller than the curvature radius of 12 inner peripheral surfaces 12a may be drawn.
The first rectifying flow path upper wall 20 b of the first water discharge port 20 is formed in a substantially horizontal plane at a position slightly lower than the upper edge 2 a of the toilet body 2, and the rim portion 12 on the outer peripheral side of the bowl portion 4. Is connected to the top of the inner wall portion 20a of the first rectifying flow path bowl portion on the inner peripheral side of the bowl portion 4.
The first water discharge port 20c of the first water discharge port portion 20 is formed in a rectangular cross-sectional shape whose longitudinal section is long in the vertical direction, and one side of the rectangular shape long in the vertical direction of the first water discharge port 20c is rimmed. Since the inner peripheral surface 12a of the portion 12 is formed, the wash water from the first rectifying flow path 20d upstream of the first water outlet 20c of the first water outlet 20 to the downstream side of the first water outlet 20c. However, the portion that flows along the inner peripheral surface 12a of the rim portion 12 becomes relatively large, and it is easy to form a layered and uniform flow along the inner peripheral surface 12a of the rim portion 12.
Furthermore, since the first water discharge port 20c is formed in a rectangular cross-sectional shape that is long in the vertical direction, the portion where the first rectifying flow channel bowl inner wall portion 20a makes a business trip toward the inside of the bowl portion 4 is reduced. Thus, it is possible to suppress disturbance of the flow of the water flow, and when the washing water is discharged from the first water discharge port 20c, it is difficult to diffuse in the lateral direction, so that the first discharge near the first water discharge port 20c. It is possible to prevent the wash water discharged from the water outlet 20c and the wash water discharged from the second water discharge port 22c from joining and colliding with each other.

The first rectifying flow path 20d of the first water discharge port 20 includes the shelf part 14 of the bowl part 4, the first rectifying flow path bowl part inner wall part 20a, the first rectifying flow path upper wall 20b, and the inner peripheral surface of the rim part 12. 12a is formed as a channel surrounded by 12a, and is formed to have the same height as the first water outlet side water conduit 6b of the water conduit 6 and the lateral width of the channel narrower than the lateral width of the first water outlet side water conduit 6b. The cross-sectional area of the water conduit 6 is smaller than the cross-sectional area of the first water outlet side water conduit 6b, and is formed to extend a predetermined length. Accordingly, in the first rectification flow path 20d, the flow of the washing water is restricted to the cross-sectional area of the first rectification flow path 20d smaller than the cross-sectional area of the water conduit 6, and the turbulence of the flow is suppressed, so that the first rectification flow A constant flow is arranged in the path 20d.
Further, the first rectifying flow path 20d is connected to the first water discharge port 20c from the first rectifying flow path inflow portion 20e through which the washing water flows from the first inner peripheral surface opening portion 12b formed on the inner peripheral surface 12a of the rim portion 12. The linear flow directing in the direction along the inner peripheral surface 12a of the first rectifying flow path 20d is directed to the flow of the washing water passing through the flow path. It is possible to have the property, and the lateral spread of the washing water flowing out from the first water discharge port 20c is suppressed.
In this way, the first rectification flow path 20d straightens the flow of the wash water that has flowed in from the water conduit 6, and the rectified wash water has a momentum forward from the first water discharge port 20c. The bowl portion 4 is formed so that it can be sprinkled and swiveled with a force in the circumferential direction of the bowl portion 4 to increase the cleaning power.
The first rectification flow path 20d of the first water discharge port portion 20 is similar in shape to each longitudinal section in the entire region from the first rectification flow channel inflow portion 20e through which the washing water flows from the water conduit 6 to the first water discharge port 20c. The rectangular shape is a rectangular shape that is long in the vertical direction of the shape, but the cross section of the rectangular shape that is long in the vertical direction is a part of the entire region from the first rectifying channel inflow portion 20e to the first water discharge port 20c. It may be formed over a predetermined length, as long as it is formed in a region necessary for discharging wash water rectified from at least the first water discharge port 20c.

Here, as shown in FIG. 5, as an example, the first water discharge port 20 has a ratio a: b of the longitudinal long side a and the lateral short side b of the cross-sectional shape of 2: 1 to 3: 1 ( It is preferable that the ratio is a ratio of the length (preferred value when formed with earthenware), and when the first water discharge port is formed with resin, the vertical long side a and the horizontal short of the cross-sectional shape are formed. It is preferable that the length ratio a: b of the side b is 2: 1 to 5: 1.
The first rectifying channel 20d has a length l ₁ from the first rectifying channel inlet 20e to the first water discharge port 20c of 15 mm to 25 mm, and the first rectifying channel 20d is guided. Compared with the channel cross-sectional area in the first water outlet side water guide channel 6b of the water channel 6, the channel cross-sectional area is small.

The second water discharge port portion 22 extends upward from the shelf portion 14 and is disposed so as to protrude from the inner peripheral surface 12a of the rim portion 12 so as to protrude toward the inside of the bowl portion 4. A wall 22a, and a second rectifying channel upper wall 22b that connects the upper end of the second rectifying channel bowl inner wall 22a and the inner peripheral surface 12a of the rim 12 in a substantially horizontal direction. The water mouth part 22 is surrounded by the shelf part 14 of the bowl part 4, the second rectifying channel bowl part inner wall part 22 a, the second rectifying channel upper wall 22 b, and the inner peripheral surface 12 a of the rim part 12. Of the second spout 22c that opens forward along the inner wall of the basin, the shelf 14 of the bowl part 4, the second rectifying channel bowl inner wall part 22a, the second rectifying channel upper wall 22b, and the rim part 12. It is formed by the inner peripheral surface 12a and passes from the water conduit 6 to the second water discharge port 22c. A second rectifying flow path 22d for rectifying the flow of purified water is formed.
The second rectifying flow channel bowl portion inner wall portion 22a of the second water discharge port portion 22 forms a standing wall formed so as to rise substantially vertically upward from the shelf portion 14 of the bowl portion 4, and its rear end is a rim portion. 12 is connected to the curved surface of the inner peripheral surface 12a of the rim 12 so as to be smoothly continuous, and the front end of the rim portion crosses the shelf 14 diagonally to the vicinity of the inner end 14a of the shelf 14 inside the bowl 4 It is extended so that the arc which has a curvature radius comparatively smaller than the curvature radius of 12 inner peripheral surfaces 12a may be drawn.
The second rectifying flow path upper wall 22b of the second water discharge port portion 22 is formed in a substantially horizontal plane at a position slightly lower than the upper edge portion 2a of the toilet body 2, and the rim portion 12 on the outer peripheral side of the bowl portion 4. Is connected to the top of the second rectifying flow channel bowl inner wall portion 22a on the inner circumferential side of the bowl portion 4.
The second water discharge port 22c of the second water discharge port portion 22 is formed in a rectangular cross-sectional shape having a rectangular shape whose longitudinal cross section is long in the vertical direction, and a rectangular shape 1 long in the vertical direction of the second water discharge port 22c. Since the inner peripheral surface 12a of the rim portion 12 is formed on the side, from the second rectification flow path 22d upstream of the second water discharge port 22c of the second water discharge port portion 22 to the downstream side of the second water discharge port 22c. The portion where the cleaning water is made to be along the inner peripheral surface 12a of the rim portion 12 is relatively large, and it is easy to form a layered and uniform flow along the inner peripheral surface 12a of the rim portion 12.
Further, since the second water discharge port 22c is formed in a rectangular cross-sectional shape that is long in the vertical direction, the portion where the second rectifying flow channel bowl inner wall portion 22a makes a business trip toward the inside of the bowl portion 4 is reduced. Thus, it is possible to suppress disturbance of the flow of the water flow, and the first water discharge near the second water discharge port 22c by preventing the washing water from being diffused laterally when water is discharged from the second water discharge port 22c. It is possible to prevent the wash water discharged from the water outlet 20c and the wash water discharged from the second water discharge port 22c from joining and colliding with each other.

The second rectification flow path 22d of the second water discharge port 22 includes the shelf part 14 of the bowl part 4, the second rectification flow path bowl part inner wall part 22a, the second rectification flow path upper wall 22b, and the inner peripheral surface of the rim part 12. 12a is formed as a flow path surrounded by 12a, and is formed to have the same height as the second water outlet side water guide path 6c of the water conduit 6 and the lateral width of the flow path is narrower than the horizontal width of the second water outlet side water conduit 6c. The cross-sectional area of the water conduit 6 is smaller than the cross-sectional area of the second water outlet side water conduit 6c, and is formed to extend a predetermined length. Therefore, in the second rectification flow path 22d, the flow of the washing water is reduced to the cross-sectional area of the second rectification flow path 22d that is smaller than the cross-sectional area of the second water discharge-side water conveyance path 6c of the water conveyance path 6, and the flow is disturbed Is suppressed, and a constant flow is adjusted in the second rectifying flow path 22d.
Further, the second rectifying flow path 22d is connected to the second water discharge port 22c from the second rectifying flow path inflow portion 22e through which washing water flows from the second inner peripheral surface opening portion 12c formed in the inner peripheral surface 12a of the rim portion 12. And a linear directivity in the direction along the inner peripheral surface 12a of the second rectifying flow path 22d in the flow of the washing water passing through the flow path. It is possible to prevent the washing water flowing out from the second water discharge port 22c from spreading in the lateral direction.
In this way, the second rectification flow path 22d straightens the flow of the wash water that has flowed in from the water conduit 6, and the rectified wash water has a momentum forward from the second water discharge port 22c. The bowl portion 4 is formed so that it can be sprinkled and swiveled with a force in the circumferential direction of the bowl portion 4 to increase the cleaning power.
The second rectification flow path 22d of the second water discharge port 22 is similar in shape to each longitudinal section in the entire region from the second rectification flow path inflow portion 22e through which the washing water flows from the water conduit 6 to the second water discharge port 22c. The rectangular shape that is long in the vertical direction of the shape has a predetermined length in a part of the entire region from the second rectifying channel inflow portion 22e to the second water discharge port 22c. What is necessary is just to be formed in the area | region required in order that the wash water rectified | straightened from the 2nd water discharge port 22c may be discharged at least.

Here, as shown in FIG. 6, as an example, the second water discharge port 22 has a ratio c: d of the lengths of the vertical long side a and the horizontal short side b of the cross-sectional shape to 2: 1 to 3: 1 ( It is preferable that the ratio is a ratio of the length (preferred value when formed with earthenware), and when the second water discharge port is formed with resin, the vertical long side c and the horizontal short of the cross-sectional shape are formed. It is preferable that the length ratio c: d of the side d is formed so as to have a length ratio of 2: 1 to 5: 1.
Second rectifying flow path 22d, the length l ₂ from the second rectifying channel inlet portion 22e to the second water discharge port 22c is formed to a length of 15mm to 25 mm, also the second rectifying flow path 22d is water conduit 6 has a smaller channel cross-sectional area than the channel cross-sectional area in the second water outlet side water conduit 6c.
In the present embodiment, the ratio of the size of the opening area of the first outlet 20c of the first outlet 20 and the opening area of the second outlet 22c of the second outlet 22 is 6: 4. The ratio of the size of the area is set. The second water discharge port 22 may be formed in a shape different from the opening shape of the first water discharge port 20, the ratio of the vertical and horizontal lengths and the opening area, and the second rectification flow channel inflow portion of the second rectification flow channel 22 d. The length and the channel cross-sectional area from 22e to the second water discharge port 22c are different from the length and the channel cross-sectional area from the first rectification flow channel inlet 20e of the first rectification flow channel 20d to the first water discharge port 20c. It may be formed as follows.

Next, the operation (action) of the flush toilet according to one embodiment of the present invention will be described with reference to FIGS. Here, in FIG. 1, the direction of the flow of the washing water in the flush toilet is indicated by arrows F1 to F5.
First, when an operation lever (not shown) for cleaning the toilet bowl is operated, a drain valve (not shown) provided in the water storage tank (not shown) is opened to wash the water storage tank (not shown). Water flows into the inlet portion 6a of the water conduit 6 from a cleaning water supply port (not shown). The wash water that has flowed into the water conduit 6 is branched into a first water outlet side water conduit 6b, a second water outlet side water conduit 6c, and a jet water outlet side water conduit 6d, and from the first water outlet side water conduit 6b. It flows to the first water outlet 20, flows from the second water outlet side conduit 6 c to the second water outlet 22, and flows from the jet outlet side conduit 6 d to the jet outlet 18.
The washing water flowing from the first water outlet side water conduit 6b to the first water outlet 20 is a break in the flow path smaller than the cross-sectional area of the flow path from the first water outlet side water conduit 6b to the first water outlet side water conduit 6b. It flows into the first rectification flow path 20d in the first water discharge port portion 20 having an area, and the flow is arranged and rectified by flowing through the first rectification flow path 20d for a predetermined length.
The washing water flowing from the second water outlet side water conduit 6c to the second water outlet 22 has a flow path smaller than the cross sectional area of the flow path from the second water outlet side water conduit 6c to the second water outlet side water conduit 6c. It flows into the 2nd rectification flow path 22d in the 2nd water discharge port part 22 which has an area, and a flow is arranged and rectified by flowing through the 2nd rectification flow path 22d for a predetermined length.

The washing water discharged from the first water discharge port 20 is rectified from the inner peripheral surface 12a side (outside the bowl portion) of the first rectifying flow channel bowl inner wall portion 20a as indicated by an arrow F1. The water is discharged onto the shelf 14 of the bowl 4 along the inner peripheral surface 12a of the rim 12. Since the first water outlet 20c of the first water outlet 20 is formed in a rectangular shape that is long in the vertical direction, the wash water discharged from the first water outlet 20 is the rectangular portion of the first water outlet 20c. When the water is rectified as a washing water flow in a flat state and discharged from the first water discharge port 20c, the inside of the rim portion 12 is in the form of a water discharge in a flat state that does not spread in the horizontal direction but spreads in the vertical direction. It flows out along the vertical direction of the peripheral surface 12a, and the spreading | diffusion to the left-right direction is suppressed.
The wash water discharged from the first water discharge port 20 swivels around the bowl portion 4 along the inner peripheral surface 12a of the rim portion 12 in a rectified state as indicated by an arrow F1. A part of the washing water flows down from the shelf 14 to the filth receiving surface 10 while forming a swirling flow as shown by an arrow F2, and a part of the washing water further shows as shown by an arrow F3. After turning around the shelf 14 of the bowl 4 along the inner peripheral surface 12 a of the rim 12, it reaches the second spout 22. The wash water that has reached the second water discharge port 22 passes from the inner circumferential surface 12a of the rim portion 12 to the inner side of the shelf portion 14 inside the bowl portion 4 along the inner circumferential surface 22f of the second rectifying flow channel bowl inner wall portion 22a. It is guided to the vicinity of the end 14 a and flows down from the shelf 14 inner end 14 a to the filth receiving surface 10.

The washing water discharged from the second water discharge port 22 is rectified from the inner peripheral surface 12a side (outside the bowl portion) of the second rectifying flow channel bowl inner wall portion 22a as indicated by an arrow F4. The water is discharged onto the shelf 14 of the bowl 4 along the inner peripheral surface 12a of the rim 12. Since the second water discharge port 22c of the second water discharge port portion 22 is formed in a rectangular shape that is long in the vertical direction, the wash water discharged from the second water discharge port portion 22 is in the rectangular portion of the second water discharge port 22c. When the water is rectified as a washing water flow in a flat state and discharged from the second water discharge port 22c, the inside of the rim portion 12 is in the form of a flat water discharge that does not spread in the left-right direction but spreads in the vertical direction. It flows out along the vertical direction of the peripheral surface 12a, and the spreading | diffusion to the left-right direction is suppressed.
In the vicinity of the second water discharge port 22, the second rectifying flow channel bowl inner wall portion 22 a has the cleaning water discharged from the first water discharge port 20 and the cleaning water discharged from the second water discharge port 22. With the direction in which the second rectifying flow channel bowl inner wall portion 22a protrudes as a boundary, it can be divided and guided in separate streamline directions, and the collision of the washing water flows can be suppressed.
The wash water discharged from the second water discharge port 22 swirls in the bowl portion 4 along the inner peripheral surface 12a of the rim portion 12 in a rectified state, and a part of the wash water is indicated by an arrow F5. As shown, a swirl flow is formed to flow down from the shelf portion 14 to the filth receiving surface 10, and a part of the washing water is along the inner peripheral surface 12a of the rim portion 12 as shown by an arrow F4. , Reaches the first water discharge port 20, and extends from the inner peripheral surface 12a of the rim portion 12 to the inner peripheral surface 20f of the first rectifying flow channel bowl inner wall portion 20a, and the inner end 14a of the shelf 14 inside the bowl portion 4. It is guided to the vicinity and flows down from the shelf 14 inner end 14a to the filth receiving surface 10.
In the vicinity of the first water discharge port 20, the first rectifying flow channel bowl inner wall portion 20 a has the cleaning water discharged from the first water discharge port 20 and the cleaning water discharged from the second water discharge port 22. With the direction in which the first rectifying flow channel bowl inner wall portion 20a protrudes as a boundary, it can be divided and guided in different streamline directions, and the collision of the water flows of the washing water is suppressed.

In this way, the wash water discharged from the first water discharge port portion 20 and the wash water discharged from the second water discharge port portion 22 are rectified, and the shelf portions 14 are respectively prevented while preventing collision of water flows. The sewage receiving surface 10 flows down while swirling toward the sewage receiving surface 10 to sufficiently clean the sewage receiving surface 10, and a downward flow that falls in the direction of the water reservoir 16 is formed.
These flows merge with the wash water discharged from the jet discharge port 18 toward the water reservoir 16 to form a flow for effectively discharging filth from the inlet 8 a of the drain trap pipe 8. When the cleaning water discharges filth from the drain trap pipe 8 and the cleaning water in the water storage tank (not shown) is drained to a certain amount, the operation device (not shown) terminates the draining operation, An operation of supplying cleaning water into a tank (not shown) is performed to end a series of cleaning operations.

  According to the flush toilet according to the above-described embodiment of the present invention, the first outlet 20 is formed with the first rectifying channel 20d having a cross-sectional area smaller than the cross-sectional area of the water conduit 6 and a predetermined length. Since the second outlet 22 is formed with a second rectifying passage 22d having a cross-sectional area smaller than that of the conduit 6 and having a predetermined length, the first outlet 20 and the second outlet 20 are formed from the conduit 6. The washing water that has flowed into the water inlet 22 is rectified by the first rectifying channel 20d and the second rectifying channel 22d, respectively. As a result, according to the present invention, since the rectified washing water is discharged from the first water discharge port portion 20 and the second water discharge port portion 22, respectively, the rim portion 12 reaches the inner edge thereof up to the upper edge portion 2a. Even if the surface 12a is formed so as to rise substantially in the vertical direction, the washing water can be prevented from splashing out of the toilet beyond the rim portion 12.

Further, according to the flush toilet according to the above-described embodiment of the present invention, the first water discharge port portion 20 and the second water discharge port portion 22 are each formed in a rectangular shape that is long in the vertical direction. Since the wash water discharged from the water discharge port portion 20 and the second water discharge port portion 22 is swung on the shelf and along the inner peripheral surface 12a of the rim portion 12 in a rectified state, the wash water is It is possible to prevent water from jumping out of the toilet beyond the rim portion 12.
Moreover, since each cross section of the 1st water discharge port part 20 and the 2nd water discharge port part 22 is formed in the cross-sectional shape of a rectangular shape long in a vertical direction, a wash water is the vertical direction of the internal peripheral surface 12a of the rim | limb part 12. And the diffusion of the wash water in the left-right direction is suppressed, so that the collision with the flow of the wash water that has already swirled can be suppressed, and the wash water passes the rim portion 12 and out of the toilet. It is possible to prevent water from splashing.
Furthermore, since each cross section of the 1st water discharge port part 20 and the 2nd water discharge port part 22 is formed in the cross-sectional shape of a rectangular shape long in the vertical direction, the bowl of the 1st water discharge port part 20 and the 2nd water discharge port part 22 The size that protrudes inward on the shelf 14 of the portion 4 can be made smaller than the size that protrudes in the cross-sectional shape of the rectangular shape that is long in the lateral direction. It can suppress that it will collide with the part 20 or the 2nd water discharge port part 22, and will be in the disorder | damaged state, and it can prevent that wash water jumps out of the toilet bowl over the rim part 12. FIG.

  Moreover, according to the flush toilet according to the above-described embodiment of the present invention, first, the first rectifying flow channel bowl inner wall portion 20a of the first spout port 20 is on the shelf portion 14 and within the rim portion 12. Since it is formed in the bowl part 4 inside from the surrounding surface 12a, when the wash water spouted from the 2nd spout part 22 turns on the shelf part 14, and reaches the 1st spout part 20 vicinity. Since it is guided from the inner peripheral surface 12a of the rim portion 12 along the inner peripheral surface 20f of the first rectifying flow channel bowl portion inner wall portion 20a of the first water discharge port portion 20, water is discharged from the first water discharge port portion 20. It is possible to suppress a violent collision with the washing water. Furthermore, since the second rectifying flow channel bowl portion inner wall portion 22a of the second water discharge port portion 22 is formed on the shelf portion 14 and protruding from the inner peripheral surface 12a of the rim portion 12 to the inside of the bowl portion 4, When the wash water spouted from the first spout 20 turns on the shelf 14 and reaches the vicinity of the second spout 22, the inner wall of the second rectifying flow channel bowl portion of the second spout 22 Since it is guided along the inner peripheral surface 22f of the portion 22a, it is possible to suppress a violent collision with the wash water discharged from the second water discharge port portion 22. As a result, according to the present invention, it is possible to prevent the washing water from colliding and splashing outside the toilet bowl at the first water outlet 20 and the second water outlet 22.

  Further, according to the flush toilet according to the above-described embodiment of the present invention, when the wash water discharged from the first water discharge port 20 reaches the vicinity of the second water discharge port 22, the inner peripheral surface of the rim portion 12. 12a is guided to the vicinity of the inner end of the shelf 14 along the inner wall portion 22a of the second rectifying flow channel bowl, and flows down from the inner end of the shelf 14 to the filth receiving surface 10, and water is discharged from the second water outlet 22. When the washed water reaches the vicinity of the first water discharge port portion 20, it is guided from the inner peripheral surface 12a of the rim portion 12 to the vicinity of the inner end of the shelf portion 14 along the inner wall portion 20a of the first rectifying flow path bowl portion. Since the water flows down from the inner end of the shelf 14 to the filth receiving surface 10, it is possible to prevent the washing water from colliding violently in the first water outlet 20 and the second water outlet 22. Can prevent water from splashing outside the toilet

  Moreover, according to the flush toilet according to the above-described embodiment of the present invention, the first rectification flow path 20d of the first water discharge port 20 and the second rectification flow path 22d of the second water discharge port 22 are 15 mm to 25 mm. Since the length is formed, the wash water can be sufficiently rectified, and the first rectifying flow channel bowl inner wall portion 20a and the second rectifying flow channel bowl inner wall portion 22a have a relatively small curvature radius. Therefore, in the entire circumference of the bowl portion 4, a portion having a relatively large radius of curvature of the inner peripheral surface 12 a of the rim portion 12 can be increased, so that water splash can be prevented.

  Further, according to the flush toilet according to the above-described embodiment of the present invention, the first water discharge port portion 20 and the second water discharge port portion 22 are formed into a rectangular cross-sectional shape that is long in the vertical direction, and the first discharge port is formed. The cleaning water discharged from the water outlet 20 and the cleaning water discharged from the second water outlet 22 are swung along the vertical inner peripheral surface 12a of the longitudinal rim 12 in a rectified state. Therefore, it is possible to prevent water from splashing out of the toilet beyond the rim portion 12 formed so that the inner peripheral surface 12a of the toilet main body 2 rises in the substantially vertical direction to the upper edge portion 2a.

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Toilet body 2a Upper edge part 4 Bowl part 6 Water conduit 8 Drain trap pipe 10 Soil receiving surface 12 Rim part 12a Inner peripheral surface 14 Shelf part 14a Inner end 16 Reservoir part 18 Zet spout 20 First Water outlet 20a First rectifying channel bowl inner wall 20b First rectifying channel upper wall 20c First water outlet 20d First rectifying channel 20e First rectifying channel inlet 22 Second water outlet 22a Second rectifying Channel bowl part inner wall part 22b Second rectification channel upper wall 22c Second water discharge port 22d Second rectification channel 22e Second rectification channel inflow part W ₀ Reservoir surface a Vertical side b Horizontal short side c Vertical long side d Horizontal short Side F1 Arrow F2 Arrow F3 Arrow F4 Arrow F5 Arrow l ₁ Length l ₂ Length

Claims (6)

A flush toilet that flushes toilets with wash water supplied from a wash water source and discharges filth,
A bowl-shaped filth receiving surface, a rim formed on an upper portion of the filth receiving surface and having an inner peripheral surface rising substantially vertically, and formed between the rim portion and the filth receiving surface. A bowl with a shelf,
A drainage channel where the inlet is connected to the bottom of the bowl portion and discharges filth,
A first water outlet that spouts wash water onto the shelf of the bowl portion to form a swirling flow, and the wash water is discharged in the same direction as the swirling direction of the wash water discharged from the first water outlet. A second spout,
A water conduit that supplies wash water to each of the first water outlet and the second water outlet,
A first rectifying passage having a cross-sectional area smaller than the cross-sectional area of the water conduit and a predetermined length is formed in the first water outlet, and a cross-sectional area of the water conduit is formed in the second water outlet. A flush toilet comprising a second rectifying channel having a small cross-sectional area and a predetermined length.   The flush toilet according to claim 1, wherein each of the first water discharge port portion and the second water discharge port portion is formed in a rectangular shape whose cross section is long in the vertical direction. The first rectifying flow path of the first water discharge port includes the shelf, a bowl inner wall formed on the shelf and projecting to the inside of the bowl, and an upper end of the bowl inner wall And an upper wall portion connecting the inner peripheral surface of the rim portion and an inner peripheral surface of the rim portion,
The second rectifying flow path of the second water discharge port includes the shelf, a bowl inner wall formed on the shelf and projecting inside the bowl, and an upper end of the bowl inner wall The flush toilet according to claim 1, wherein the flush toilet is formed by an upper wall portion that connects the rim portion and an inner peripheral surface of the rim portion, and an inner peripheral surface of the rim portion.   The said bowl part inner wall part of the said 1st water discharge part and the said bowl part inner wall part of the said 2nd water discharge part are each protrudingly formed to the inner edge vicinity of the said shelf part, respectively. Flush toilet.   The flush toilet of Claim 3 or 4 with which the 1st rectification flow path of the said 1st water discharge port part and the 2nd rectification flow path of the said 2nd water discharge port part are formed in the length of 15 mm-25 mm.   The first water discharge port portion and the second water discharge port portion are formed such that the ratio between the vertical length of these cross-sectional shapes and the horizontal length is 2: 1 to 5: 1. The flush toilet according to claim 2.

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