JP2002276007A - Flush toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems in a toilet bowl cleaned by pressurized wash water from an external pressurized water supply source wherein air is immediately exhausted from a jet port when performing next time cleaning in a state of staying air in a jet chamber just before the jet port and it generates noise, and has adverse influence on cleaning capacity of the toilet bowl. SOLUTION: In the jet chamber of this flush toilet bowl, an upper inner wall surface 21 and an upper part of an opening part 22 are connected in the almost same, and the upper inner wall surface 21 inclines upward to the opening part 22. Thus, at uncleaning time, residual air 23 staying in the jet chamber 24 can be easily exhausted along an inclination as indicated in an illustrated broken line arrow mark.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to flush water supply means for supplying pressurized flush water from an external pressurized water supply source to a toilet bowl,
A bowl portion for storing the stored water, a jet chamber facing the trap for discharging the stored water, a jet port located at the tip end surface of the jet chamber, for discharging cleaning water to the trap, the cleaning water supply means, The present invention relates to a flush toilet provided with a headrace connecting a jet room.

[0002]

2. Description of the Related Art In a flush toilet having a jet port, the jet port faces a trap which is a drain of the flush toilet. Therefore, the jet stream ejected from the jet port directly pushes the dirt into the trap, so that the flush function has a stable and high flushing ability as compared with other flush toilets having no jet port. In addition, the flush water entrains air when passing through the headrace in the toilet, and this air may be mixed into the jet flow.However, the conventional flush toilet has a large amount of flush water, so the jet flush water is discharged. The time was long and didn't matter.

[0003]

The development of a water-saving toilet bowl has been anticipated due to a recent rise in water-saving consciousness. However, in order to save water, it was necessary to shorten the jet flow discharge time. However, shortening the jet discharge time with a conventional toilet is affected by the air contained in the jet flow,
Since the power of the jet flow was reduced, a sufficient water washing function could not be obtained. Therefore, it was necessary to remove air from the jet stream ejected from the jet port during cleaning. Further, when the next cleaning is performed in a state where the air stays in the jet chamber immediately before the jet port, the air is immediately discharged from the jet port, so that it is necessary to prevent the air from staying in the jet chamber. In addition, there is also a problem that a large noise is generated when air is mixed in the jet stream. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a toilet bowl that quickly discharges air from a water channel when the toilet bowl is washed, thereby reducing power loss of a jet stream.

[0004]

Means for Solving the Problems and Action / Effect In order to achieve the above object, according to the first aspect, a flush water supply means for supplying pressurized flush water from an external pressurized water supply source to a toilet, And a jet chamber opposed to a trap for discharging stored water, and a jet chamber located at a tip end surface of the jet chamber,
In a flush toilet having a jet port for discharging flush water to the trap, and a water conduit connecting the flush water supply means and the jet chamber, an opening located at an upstream end of the jet chamber connected to the water conduit. The upper part of the section is connected to the upper inner wall surface, which is the upper inner wall surface of the jet chamber, substantially identically. Air entrapped at the time of washing partially remains in the jet chamber after washing and becomes residual air, but since the upper portion of the opening and the upper inner wall surface are connected substantially identically, the residual air is First, it moves to the upper part, and then is easily discharged from the opening. Therefore, in the present invention, the residual air after washing is not retained in the jet chamber, and the jet chamber can always be kept in a constant state.

According to a second aspect of the present invention, the upper inner wall surface is inclined upward toward the opening. According to the present invention, since the residual air moves along the upper inner wall surface, it can be quickly discharged from the opening.

According to a third aspect of the present invention, the opening is previously opened by a molding die. According to the present invention, since the water passage and the jet chamber are communicated in advance, the opening operation of the opening portion immediately after the mold is released can be omitted, and the productivity can be improved.

According to a fourth aspect of the present invention, there is provided the apparatus having the upper inner wall surface and a bowl lower surface forming a bottom of the bowl portion. Therefore, the upper inner wall surface of the jet chamber and the bottom of the bowl portion can be formed into individual shapes. Therefore, in the present invention, it is possible to design an optimal structure that meets individual conditions.

According to a fifth aspect of the present invention, the upper inner wall surface is inclined upward toward the jet port.
Therefore, after the washing is completed, the staying air is quickly discharged from the opening or the jet port located at the shortest position. Therefore, in the present invention, when the washing is continuously performed, the staying air is quickly discharged, so that the influence can be minimized.

According to a sixth aspect of the present invention, there is provided an air mechanism for holding the open-to-atmosphere air remaining in the headrace above the reservoir surface in a part of the headrace. According to the present invention, since the open-to-atmosphere air is temporarily held by the air holding mechanism during cleaning, the open-to-atmosphere air entering the jet chamber can be minimized.

According to a seventh aspect of the present invention, a toilet body having a side inner wall surface which is an inner wall surface of a side portion of the jet chamber, a lower inner wall surface which is a lower inner wall surface of the jet chamber, and the water conduit is formed in a mold. An opening is formed in the side inner wall surface adjacent to the headrace channel, and an accessory part having a bowl lower surface, which is a bottom portion of the bowl portion, and an upper inner wall surface, which is an upper inner wall surface of the jet chamber, is separately provided. A flush toilet is manufactured by a method in which the accessory is attached to the toilet body so that the upper portion of the opening and the upper inner wall surface are substantially the same. Therefore, in the present invention, the upper inner wall surface of the jet chamber and the lower surface of the bowl can be manufactured in separate shapes.

According to another aspect of the present invention, an upper inner wall surface which is an upper inner wall surface of the jet chamber located on the opposite side of the opening is a split mold projecting toward the opening and a bowl which is a bottom of the bowl portion. The method for manufacturing a flush toilet by a method using a mold formed by an upper mold forming a lower surface, the upper inner wall surface is inclined upward toward the opening, and the bowl lower surface is symmetrical. Features. Therefore, according to the present invention, while satisfying the condition of the upper inner wall surface of the jet chamber and the condition of the lower surface of the bowl,
It can be manufactured by integral molding which is easy to manufacture.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view of a flush toilet showing a first embodiment according to the present invention, FIG. 2 is a schematic view of the vicinity of the jet chamber 7 in FIG. 1, and FIG. 3 is a schematic sectional view of the jet chamber 7 in FIGS. AA and FIG. 4 show a schematic sectional view SECTION BB of the headrace 6 in FIG. Figures 1, 2, 3 and 4
Is provided with an open / close valve, a water supply unit 2 for switching water discharge to the rim port 3 and the jet port 9, a control unit 8 for controlling the switching, and a jet chamber 7 having the jet port 9;
A water conduit 6 connecting the water supply unit 2 and the jet chamber 7;
And an opening 5 located at an upstream end of the jet chamber 7 connected to the jet chamber 7, and an upper inner wall surface 10 of the jet chamber 7 and an upper portion of the opening 5 are connected substantially identically.

The washing water 1 supplied from a pressurized water supply source (not shown) is controlled by a control unit 8, and a rim hose 4 is supplied by a water supply unit 2.
And the water is discharged to the rim opening 3. Then, the control unit 8
The washing water 1 is controlled by the water supply unit 2 to switch the water discharge to the water channel 6, while the air 13 located above the reservoir surface 12 of the water channel 6 is entrained, passes through the opening 5, and flows through the jet chamber 7. And discharged from the jet port 9. Finally, the washing water 1 is controlled by the control unit 8, the water supply is switched to the rim hose 4 by the water supply unit 2, the water is stored in the bowl unit 11, and the valve is closed.

As shown in FIG. 3, after the washing is completed, the residual air 14 which is a part of the air 13 entrained in the washing water 1 stays in the jet chamber 7. Are connected in substantially the same manner, so that they can be discharged from the jet chamber 7 as shown by the dashed arrow in the figure. Therefore, since the residual air 14 does not stay in the jet chamber 7 at the next cleaning, the residual air 14 is not entrapped.
The cleaning water 1 can be discharged from the jet port 9. The pressurized water supply source referred to here is a general term for a water supply pressure (original pressure) that cannot be obtained with a toilet-mounted flush water storage tank having a water head pressure of about 250 mm. Therefore, the pressurized water supply source of the present invention can supply flush water with a large head pressure as compared to a toilet mounted type such as a rooftop of a house or a building roof, in addition to a pressurized water supply pipe such as a water pipe. Including things. It is also effective to use one that simultaneously discharges water to the rim hose 4 and the water conduit 6.

Next, a modification of FIG. 5 will be described. FIG. 5 to FIG.
2 is a schematic view in which the upper inner wall surface 10 is inclined. The cross-sectional view of the jet chamber shown in FIG. 5 is characterized in that the upper inner wall surface 21 and the upper part of the opening 22 are connected substantially identically, and the upper inner wall surface 21 is inclined upward toward the opening 22.

As in the first embodiment, since air is entrained in the washing water, the residual air 23 which is a part of the entrained air stays in the jet chamber 24 after the washing is completed. Further, since the upper inner wall surface 21 and the upper part of the opening 22 are connected substantially identically, and the upper inner wall surface 21 is inclined, the residual air 23 flows from the jet chamber 24 along the inclination as shown by the dashed arrow in the figure. And can be easily discharged.
Therefore, at the next cleaning, the residual air 23 is generated in the jet chamber 2.
4, the washing water can be discharged from the jet port 25 without involving the residual air 23. Further, the upper inner wall surface 21 may be at a position lower than the upper part of the opening 22. At this time, the residual air 23 can be easily discharged from the jet chamber 24 as in FIG.

Next, a second embodiment will be described. 6 is a schematic diagram in which the opening 22 in FIG. 5 is previously opened by a molding die, FIG. 7 is a schematic configuration diagram thereof, and FIG. 8 is a schematic sectional view SECTION CC of the water conduit 31 in FIG. The schematic cross-sectional view of the jet chamber shown in FIG. 6 is characterized in that the opening 32 is previously opened by a mold. As shown in FIG. 7, the water channel 31, the jet chamber 33, and the peripheral mold structure are composed of an upper mold 34 and a lower mold 35.
This molding method is a method in which the slurry is poured from the pouring hole 36, and after the meat is deposited, the mud is discharged using the pouring hole 36 while supplying air from the air supply hole 37. Therefore, since the opening 32 is formed by single molding, which is a molding method unique to pottery, the opening 32 is opened without any additional work only by removing the upper mold 34 and the lower mold 35.

Next, a modification of FIG. 8 will be described. 9 to FIG.
The schematic configuration diagram in which the shape of the lower mold 35 is deformed and the shape of the opening 32 is changed is shown. In FIG. 9, the shape and area of the opening 41 are changed by deforming the lower mold 40. Therefore, the area of the opening 41 can be arbitrarily set without deforming the structure of the jet chamber 33.

Next, a third embodiment will be described. FIG. 10 is a schematic diagram showing an upper inner wall surface 52 of a jet chamber 51 and a bowl bottom surface 53. It has an upper inner wall surface 52 that forms the inner wall surface of the jet chamber 51 and a bowl lower surface 53 that forms the bottom of the bowl portion 54. As in the first embodiment, since air is entrained in the cleaning water, the residual air 55 that is a part of the entrained air stays in the jet chamber 51 after the cleaning is completed. Also, the upper inner wall surface 52
And the upper portion of the opening portion 59 are connected substantially identically, and the upper inner wall surface 52 is inclined, so that the residual air 55 can be easily discharged from the jet chamber 51 along the inclination as shown by the dashed arrow in the figure. Can be.

The bowl bottom 53 is a separate part which does not affect the shape of the upper inner wall 52. Since the bowl bottom 53 is adhered during the manufacture of the toilet bowl,
Any structure that is not limited to 2 can be adopted. In addition, the inside air 57 surrounded by the bowl bottom surface 53 and the upper inner wall surface 52 is provided with an explosion preventing hole 58 so as not to explode in the firing step in the pottery manufacturing step. Therefore, the shape of the bottom surface 53 of the bowl that affects the appearance can be made symmetrical while preventing the residual air 55 that affects the toilet function from staying in the jet chamber 51. Can be set. The bowl bottom surface 53 may be made by bonding another material after the toilet bowl is fired. At this time, the explosion preventing hole 58 may not be provided.

Next, a fourth embodiment will be described. FIG. 11 is a schematic diagram showing a state in which the opening 66 is drilled after the toilet body 61 is removed from the mold.
FIG. 12 is a schematic configuration diagram of the toilet body 61, FIG. 13 is a schematic configuration diagram of the accessory 67, and FIG. 14 is a schematic center sectional view of FIG. As shown in FIG. 12, the mold configuration of the toilet body 61 includes an upper mold 62 and a lower mold 63. In this molding method, the slurry is poured from the pouring hole 64,
While supplying air from an air supply hole (not shown) and discharging the sludge using the pouring hole 64, the water conduit 65 is formed by single molding. Then, the upper mold 62 and the lower mold 63
Is removed, the pouring hole 64 is filled, and a hole in the opening 66 is formed. As shown in FIGS. 13 and 14, the accessory part 67 includes an accessory part upper mold 68 and an accessory part lower mold 69, and is formed separately from the toilet body 61. In this molding method, the slurry is poured from the pouring hole 70, and after the meat is deposited, the mud is discharged using the pouring hole 70 while supplying air from the air supply hole 71. After that, upper mold 6 for accessory parts
8 and the lower mold 69 for accessory parts are removed, and the jet holes 72 are removed.
Open. Finally, the accessory chamber 67 is bonded to the toilet body 61 to form a jet chamber 73 as shown in FIG. According to such a manufacturing method, the shape of the bowl lower surface 75 forming the bottom of the bowl surface 74 and the jet chamber 73
A toilet having a structure in which the shape of the upper inner wall surface 76, which is the upper inner wall surface, is optimally set can be manufactured.

Next, a fifth embodiment will be described. FIG. 15 is a schematic view of the bottom surface 85 forming the bottom of the bowl portion 84, the shape of which is symmetrical, and the jet chamber 81 and the water conduit 86 are manufactured by single molding. FIG. FIG. As shown in FIG. 16, the configuration of the toilet main body 90 includes an upper die 91, side dies 92 and 93, a lower die 94, and a split die 95. This molding method uses a casting hole 96.
After the sludge is flown and the meat is laid, the air is supplied from an air supply hole (not shown), and the sludge is discharged using the pouring hole 96. Therefore, since the opening 83 is formed by single molding, the opening 83 is opened without removing the upper mold 91, the lower mold 94, and the split mold 95, and without any additional work. According to such a manufacturing method, the opening 83 is opened while the upper inner wall surface 75 of the jet chamber 73 is inclined upward toward the opening 83 and the shape of the bowl lower surface 85 has a symmetrical structure that is not unsightly. No need,
A toilet bowl having a structure that is easier to manufacture can be made.

Next, a sixth embodiment will be described. FIG. 17 shows a schematic view around the jet chamber 101. FIG. 17 is characterized in that the upper inner wall surface 102 rises by the dimension a toward the jet port 103. As in the first embodiment, since air is entrained in the cleaning water, the residual air 104 that is a part of the entrained air stays in the jet chamber 101 after the end of the cleaning. Further, since the upper inner wall surface 102 is inclined toward the jet port 103, the residual air 104 naturally moves along the inclination as shown by the broken arrow in the figure and is discharged. Therefore, the cleaning water is supplied to the jet port 10 without entraining the residual air 104 at the next cleaning.
As we can discharge water from 3, we reduce noise,
The washing function can be stabilized. Further, by simultaneously inclining the upper inner wall surface 102 toward the opening 105, the residual air 104 can be more easily discharged from the jet chamber 101.

Next, a seventh embodiment will be described. FIG. 18 is a schematic view of a jet water discharge path provided with an air release mechanism, FIG.
9 and 20 are schematic diagrams showing the operation of the air release mechanism 111 in FIG. FIG. 19 shows the air release mechanism 1 during non-cleaning.
FIG. 20 shows an air release mechanism 111 during operation.
Is described. FIG. 18 shows a water supply unit 114 having an on-off valve and switching between rim water discharge 112 and jet water discharge 113.
And a control unit 115 for controlling the switching, a vacuum breaker 116, and a water discharge channel 117. The jet discharge path has an air release mechanism 111 for releasing air. The headrace 117 is separated into a first section headrace 118 in which stored water is stored and a second section headrace 120 in which air 119 is stored by the vacuum breaker 116 during non-washing.

Therefore, if the cleaning is performed in this state, the cleaning water 121 becomes
9 is pushed into the first section water conduit 118, but does not enter in this direction due to the resistance of the accumulated water, and flows into the air release mechanism 111 provided with the piece 122 having a small resistance.
Since the uppermost end 123 of the air release mechanism 111 is open to the atmosphere, the piece 122 is located at the upper end 12 of the air release mechanism 111.
4 but the upper end 124 of the air release mechanism 111
In this case, the volume 126 of the air release mechanism 111 having the same volume as that of the air 119 comes into contact with the back surface 125 of the bridge and is sealed. After that, the flush water 121 is supplied to the first section headrace 118 to clean the toilet. Therefore, since the air 119 is released to the volume 126 of the air release mechanism 111, the amount of the air 119 flowing into the first section headrace 118 is minimized, so that noise can be reduced and the washing function can be stabilized. . After cleaning, vacuum breaker 1 again
Since air is supplied from the second section 16, the second section headrace 120
The inside pressure is released to the atmosphere, the piece 122 descends to the lower end 127 of the air release mechanism 111, and returns to the initial state. Further, the seventh embodiment and FIGS. 3, 5, 6, 10, 11, 15,
In combination with the jet chamber structure as shown in FIG. 17, the air entering the jet chamber at the time of cleaning can be reduced, and the noise and the effect on the flush function can be minimized.

[Brief description of the drawings]

FIG. 1 is a schematic view of a flush toilet showing a first embodiment of the present invention.

FIG. 2 is a schematic view around the jet chamber in FIG.

FIG. 3 is a schematic sectional view of the jet chamber in FIGS.

FIG. 4 is a schematic sectional view of a headrace in FIG. 3;

FIG. 5 is a modification of FIG.

FIG. 6 is a schematic sectional view of a jet chamber showing a second embodiment of the present invention.

FIG. 7 is a schematic configuration diagram of FIG. 6;

FIG. 8 is a schematic sectional view of a headrace in FIG. 7;

FIG. 9 is a modification of FIG.

FIG. 10 is a schematic sectional view of a jet chamber showing a third embodiment of the present invention.

FIG. 11 is a schematic sectional view of a jet chamber showing a fourth embodiment of the present invention.

FIG. 12 is a schematic configuration diagram of a main body in FIG. 11;

FIG. 13 is a schematic configuration diagram of an accessory part in FIG. 11;

FIG. 14 is a schematic center sectional view in FIG.

FIG. 15 is a schematic sectional view of a jet chamber according to a fifth embodiment of the present invention.

FIG. 16 is a schematic configuration diagram of FIG.

FIG. 17 is a schematic view around a jet chamber showing a sixth embodiment of the present invention.

FIG. 18 is a schematic view of a jet water discharge path including an air release mechanism according to a seventh embodiment of the present invention.

FIG. 19 is a schematic diagram when the air release mechanism is not cleaned.

FIG. 20 is a schematic view of the air release mechanism during cleaning.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Washing water 2,114 ... Water supply part 3 ... Rim mouth 4 ... Rim hose 5,22,32,41,59,66,83,105 ... Opening 6,31,56,65,86,117 ... Waterway 7 , 24, 33, 51, 73, 81, 101 ... jet chamber 8, 115 ... control unit 9, 25, 72, 103 ... jet port 10, 21, 52, 76, 82, 102 ... upper inner wall surface 11, 74, 84 ... bowl part 12 ... pool surface 13 ... air 14, 23, 55, 104 ... residual air 34, 62, 91 ... upper mold 35, 40, 63, 94 ... lower mold 36, 64, 70, 96 ... pouring hole 37 , 71 ... air supply holes 53, 75, 85 ... bowl lower surface 57 ... internal air 58 ... explosion prevention holes 61, 90 ... toilet body 67 ... accessory parts 68 ... upper molds for accessory parts 69 ... lower molds 92, 93 for accessory parts … Side mold 95… split mold 1 DESCRIPTION OF SYMBOLS 1 ... Air release mechanism 112 ... Rim water discharge 113 ... Jet water discharge 116 ... Vacuum breaker 118 ... 1st section waterway 119 ... Air 120 ... 2nd section waterway 121 ... Wash water 122 ... Piece 123 ... The top end of the air release mechanism 111 124: upper end of air release mechanism 111 125: rear surface of piece 126: volume of air release mechanism 111 127: lower end of air release mechanism 111

Claims (8)

[Claims] 1. A flush water supply means for supplying pressurized flush water from an external pressurized water supply source to a toilet bowl, a bowl section for storing accumulated water, and a jet chamber facing a trap for discharging accumulated water.
In a flush toilet provided with a jet port that is located at a tip end surface of the jet chamber and discharges cleaning water to the trap, and a headrace that connects the cleaning water supply unit and the jet chamber,
A flush toilet, wherein an upper portion of an opening located at an upstream end of the jet chamber connected to the water channel is connected substantially identically to an upper inner wall surface which is an upper inner wall surface of the jet chamber. . 2. The flush toilet according to claim 1, wherein the upper inner wall surface is inclined upward toward the opening. 3. The flush toilet according to claim 1, wherein the opening is opened in advance by a molding die. 4. The flush toilet according to claim 1, further comprising: the upper inner wall surface and a lower surface of a bowl forming a bottom of the bowl portion. 5. An ink jet printer according to claim 1, wherein said upper inner wall surface is inclined upward toward said jet port.
A flush toilet according to any of the above. 6. The flush toilet according to any one of claims 1 to 5, further comprising an air mechanism for holding air open to the air remaining in the headrace above the reservoir surface in a part of the headrace. 7. A bowl portion for storing stored water, a jet chamber facing a trap for discharging stored water, a jet port located at a tip end surface of the jet chamber, for discharging cleaning water to the trap, In a flush toilet comprising a water supply means and a headrace connecting the jet chamber, and an opening located at the upstream end of the jet chamber connected to the headrace,
Forming a toilet body having a side inner wall surface that is an inner wall surface of a side portion of the jet chamber, a lower inner wall surface that is a lower inner wall surface of the jet chamber, and the water conduit with a molding die, An opening is formed in the side inner wall surface adjacent to, and an accessory having a lower surface of a bowl which is a bottom of the bowl portion and an upper inner wall surface which is an upper inner wall surface of the jet chamber is formed in a separate mold. A method for manufacturing a flush toilet, wherein the accessory is adhered to a toilet body such that an upper portion of the opening and an inner wall surface of the upper portion are substantially the same. 8. A bowl portion for storing stored water, a jet chamber facing a trap for discharging stored water, a jet port located at a tip end surface of the jet chamber, for discharging cleaning water to the trap, In a flush toilet comprising a water supply means and a headrace connecting the jet chamber, and an opening located at the upstream end of the jet chamber connected to the headrace,
An upper inner wall surface, which is an upper inner wall surface of the jet chamber, is located on the opposite side of the opening, and is formed by a split mold protruding in the opening direction and an upper mold forming a lower surface of a bowl which is a bottom of the bowl portion. A method of manufacturing a flush toilet, wherein the method is performed using a mold that is formed, the upper inner wall surface is inclined upward toward the opening, and the bottom surface of the bowl is symmetrical.