JP2008095447A - Toilet bowl - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a flushing water from scattering upward and splashed at the front of a guide recessed part, increase the jetting velocity of the flushing water, develop a high flushing capacity with a small amount of flushing water, and facilitate cleaning. <P>SOLUTION: A guide recessed part 3 opened to the side toward the inside of a bowl 1 is formed in the lower surface of a rim part 2 formed at the upper end opening edge of the bowl 1. A flushing water jetting part 4 is formed to jet the flushing water from the bowl 1 rear end of the guide recessed part 3 into the guide recessed part 3. The flushing water jetted from the flushing water jetting part 4 flows from the side opening of the guide recessed part 3 into the bowl 1 while flowing from the rear end of the guide recessed part 3 along the guide recessed part 3. The cross sectional shape of the inner surface of the guide recessed part 3 is arcuate at the side of the bowl 1. At the front of the bowl 1 part, the cross sectional shape of the inner surface of the guide recessed part 3 is so formed that the side opening 7 side end of the lower surface of the rim part 2 forming the top surface 6 of the guide recessed part 3 is formed in a horizontal part 8 and the remaining portion is formed in an arcuate shape. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for flowing flush water in a toilet bowl into a bowl.

  Conventionally, when washing water is supplied into a bowl of a toilet bowl to wash the bowl, the inside of the rim portion provided at the edge of the upper opening of the bowl is a hollow water channel, and a spout is provided at a predetermined interval on the lower surface of the rim portion. There is known a system in which cleaning water is supplied to a hollow water channel in the rim portion, and the cleaning water is discharged into the bowl from a plurality of water outlets provided on the lower surface of the rim portion to clean the inside of the bowl. However, in this conventional example, the cleaning water supplied to the hollow water channel in the rim portion is discharged into the bowl from a plurality of water outlets provided on the lower surface of the rim portion. When water is discharged from the water outlet on the lower surface, the momentum is reduced and the inner surface of the bowl flows from the upper side to the lower side, and there is a problem that the cleaning ability of the bowl is low.

  In addition, when cleaning water is supplied to the bowl of the toilet bowl to wash the bowl, a guide recess that opens sideways toward the inside of the bowl is formed on the lower surface side of the rim provided at the upper edge opening edge of the bowl. The cleaning water is sprayed into the guide recess from the rear end side of the bowl of the guide recess, and the cleaning water flows from the rear end of the guide recess along the guide recess into the bowl from the side opening of the guide recess. Also known is a cleaning method in which the cleaning water is made to flow as a swirling flow on the inner surface of the bowl and the cleaning ability is higher than that of the conventional example in which the cleaning water flows downward from the spout on the lower surface of the hollow rim portion. (See, for example, Patent Document 1).

However, in the conventional example shown in Patent Document 1, as shown in FIG. 8, the longitudinal cross-sectional shape of the inner surface of the front portion of the guide recess 3 formed on the inner peripheral surface of the upper opening of the bowl 1 is arcuate. ing. For this reason, when the cleaning water sprayed into the guide recess 3 from the cleaning water spraying portion 4 at the rear end of the guide recess 3 flows along the guide recess 3, the cleaning water is guided in the front portion of the guide recess 3. In this case, the washing water that collided with the rear wall of the front part of the guide concave part 3 is along the top surface of the arc of the front part of the guide concave part 3. There is a risk that it will flow upward and scatter as indicated by the arrow a in FIG. For this reason, conventionally, in order not to scatter upward as shown by the arrow A in FIG. 8, it is not possible to increase the ejection speed of the washing water from the washing water ejection section 4. As described above, since the washing water ejection speed cannot be increased, there is a problem that it is necessary to increase the amount of washing water used for one washing in order to perform the predetermined washing.
JP 2001-271407 A

  The present invention has been invented in view of the above-described conventional problems, and the cleaning water does not flow upward and scatter in the front part of the guide recess, and the ejection speed of the cleaning water is increased. Therefore, it is an object of the present invention to provide a toilet that can exhibit high cleaning ability with a small amount of washing water and is easy to clean.

  In order to solve the above problems, a toilet according to the present invention forms a guide recess 3 that opens sideways toward the inside of the bowl 1 on the lower surface side of the rim portion 2 provided at the upper end opening edge of the bowl 1. A cleaning water jet part 4 for jetting cleaning water is provided in the guide concave part 3 from the rear end side of the bowl 1 of the concave part 3, and the cleaning water jetted from the cleaning water jet part 4 is guided from the rear end part of the guide concave part 3. In the toilet bowl 5 that flows along the recess 3 and flows from the side opening of the guide recess 3 into the bowl 1, the longitudinal cross-sectional shape of the inner surface of the guide recess 3 is arcuate at the side of the bowl 1, and at the front of the bowl 1 part The longitudinal cross-sectional shape of the inner surface of the guide recess 3 is characterized in that the end on the side of the side opening 7 on the lower surface of the rim 2 that becomes the top surface 6 of the guide recess 3 is a horizontal portion 8 and the remaining portion is arcuate. To do.

  By adopting such a configuration, the cleaning water jetted from the washing water jetting portion 4 into the rear end portion of the guide concave portion 3 flows along the guide concave portion 3 from the rear end portion of the guide concave portion 3, and thus the side of the guide concave portion 3. By flowing into the bowl 1 from the side opening, the cleaning water becomes a swirling flow and flows through the inner surface of the bowl 1 so that the inner surface of the bowl 1 can be effectively washed by the swirling flow. Further, when the cleaning water sprayed to the rear end portion in the guide recess 3 flows through the portion corresponding to the side portion of the bowl 1 in the guide recess 3 and reaches the front portion, the direction is changed to the front portion of the guide recess 3. The cleaning water collides with the rear wall in the guide recess 3 and changes its direction. In this case, the cleaning water that has collided with the rear wall at the front of the guide recess 3 is on the top surface 6 of the front of the guide recess 3. Since the end portion is not arcuate and is the horizontal portion 8, it does not flow upward and scatter. Thus, since it is possible to prevent the cleaning water from splashing upward by the horizontal portion 8 at the front portion of the guide recess 3, it becomes possible to increase the ejection speed of the cleaning water, and when the ejection speed of the cleaning water is increased The bowl 1 can be effectively washed with a small amount of washing water. Moreover, since the longitudinal cross-sectional shape of the inner surface of the guide recessed part 3 is made into an arc shape in the side part of the bowl 1, it is easy to clean when cleaning the guide recessed part 3, and the top surface 6 of the guide recessed part 3 is also in the front part. Rather than leveling the front surface, the end of the top surface 6 on the side opening 7 side is the horizontal portion 8, so the back side of the top surface 6 that is hardest to clean and hard to remove is arcuate. Therefore, this part can be easily cleaned.

  Moreover, it is preferable to incline so that the inner peripheral surface of the rim | limb part 2 may become the bowl 1 side lower side.

  By adopting such a configuration, sewage such as urine adhering to the upper surface and side surface of the rim portion 2 can be smoothly flowed into the bowl 1 along the inner peripheral surface that is the inclined surface 9 of the rim portion 2. .

  In the present invention, as described above, the longitudinal cross-sectional shape of the inner surface of the guide recess at the front portion of the bowl portion is the horizontal opening at the side opening side end of the lower surface of the rim portion that becomes the top surface of the guide recess. The water does not collide with the back wall of the front part of the guide recess and scatter upward along the top surface, and the horizontal part can prevent the squirting water from splashing upward. It is possible to increase the speed, and if the jetting speed of the cleaning water is increased, the inner surface of the bowl can be efficiently cleaned with a swirling flow with a small amount of cleaning water, and the front end of the guide recess is positioned horizontally. However, since the vertical cross-sectional shape of the inner surface of the guide recess at the side of the bowl is an arc and the arc is removed except for the horizontal portion at the top of the front of the bowl, the cleaning inside the guide recess Especially easy to clean the back of the top of the guide recess, which is the hardest to clean Kill.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. The toilet bowl 5 is provided with a bowl 1, and a rim portion 2 that protrudes toward the inner side of the bowl 1 is provided at the upper end opening edge of the bowl 1.

  A guide recess 3 is formed on the lower surface side of the rim portion 2 provided at the upper end opening edge of the bowl 1, and the guide recess 3 opens sideways toward the inside of the bowl 1 over the entire length, and the side opening 7 It has become.

  In the embodiment shown in the accompanying drawings, the toilet 5 provided with the bowl 1 has a main portion made of synthetic resin, but may be made of earthenware.

  In the embodiment shown in the accompanying drawings, as shown in FIGS. 1 and 2, the toilet 5 is composed of a front part 10 having a bowl 1, a rear part 11, and a support frame 12. Both the front part 10 and the rear part 11 constituting the main body are made of synthetic resin.

  The front part 10 includes a skirt portion 13 having a substantially C-shaped horizontal cross section, a bowl portion 14 that is fitted and integrated with the upper portion of the skirt portion 13, and a bowl portion 14 that is further fitted onto the bowl portion 14. And the rim portion 2 welded and integrated with the upper end edge portion of the skirt portion 13. Here, the bowl 1 is composed of the bowl portion 14 and the rim portion 2.

  The rear part 11 includes an upper cover 16, an apparatus support case 17, a rear cover 18, an upper side cover 19, and a lower side cover 20, all of which are made of synthetic resin.

  The support frame 12 is made of metal, and the front part 10 is attached to the support frame 12 with screws, and the apparatus support case 17 of the rear part 11 is locally heated with a hot water cleaning device 21a, a local drying air blower 21b, and a bowl. A toilet accessory device 21 such as a deodorizing device 21c for deodorizing the odor within 1 is attached, and this device support case 17 is attached to and supported by a support frame 12 with a screw tool. The upper cover 16 is attached so as to cover the apparatus support case 17, and a toilet seat 22 and a toilet lid 23 are rotatably attached to the upper cover 16. The rear cover 18 is attached to the apparatus support case 17 and the support frame 12, the upper side cover 19 is detachably attached to the rear cover 18, and the lower side cover 20 is detachably locked to the upper side cover 19 for positioning. In this state, it is detachably attached to the support frame 12 by a magnet.

  A drain tube portion 14a is formed at the bottom of the bowl portion 14, and one end portion of the trap is connected to the drain tube portion 14a. In this embodiment, the trap is of a turn trap type, and is constituted by a flexible trap cylinder (not shown). The trap cylinder is rotated by a motor (not shown) so that the trap cylinder is upward U-shaped. The trap structure in which the trap structure is formed and the trap structure that is substantially inverted L-shaped and released can be selected. It is in a state where water has accumulated in the lower part of the bowl part 14, the drain cylinder part 14a, and the trap cylinder. In this state, urination and urination are performed. While flowing water, the trap cylinder is rotated to release the trap structure, and the sewage is drained together with the filth. The flexible trap cylinder, motor, and the like are housed in a trap case 34, and the trap case 34 is attached to a metal support frame 12. The lower part of the trap case is open and the end of the trap cylinder is connected to a drain cylinder formed on the floor.

  In the embodiment shown in the accompanying drawings, as shown in FIGS. 3 and 4, the inner peripheral surface of the rim portion 2 formed over the entire circumference of the upper end opening edge of the bowl 1 is inclined so as to be lower toward the bowl 1 side. The inclined surface 9 is formed. The inner peripheral surface of the rear portion of the rim portion 2 of the rim portion 2 that becomes the inclined surface 9 has a steeper angle of the inclined surface 9 than the inner peripheral surface of other portions. On the inner peripheral surface of the rear part, there is provided a cleaning nozzle outlet 25 for taking in and out the cleaning nozzle 24 provided in the hot water cleaning device 21a into the bowl 1, and hot or cold air jetted from the duct tip of the blower 21b. Are provided side by side on the bottom surface of the rim 2 and the cleaning nozzle loading / unloading opening 25 as shown in FIG. A deodorizing opening 27 for sucking in the odor in the bowl 1 communicating with the deodorizing device 21c is provided at a position shifted in the left-right direction from the opening 26 for use, and a light emitting unit such as an LED for illuminating the inside of the bowl 1 28 is open for light emission Part 29 is provided.

  A portion surrounded by the lower surface of the rim portion 2 and the upper surface of the upper and outer peripheral portion of the bowl portion 14 is a guide recess 3 that opens laterally over the entire circumference. As shown in FIG. 6, a cleaning nozzle insertion port 30 into which the cleaning nozzle 4 a constituting the cleaning water ejection unit 4 is inserted is provided at one end, and a side portion of the cleaning nozzle insertion port 30 serves as a partition wall portion 31. ing. Accordingly, the cleaning water sprayed from the cleaning water spraying portion 4 to the one end portion in the left-right direction of the rear end portion of the guide recess 3 flows in the guide recess 3 on one side of the bowl 1 and is on one side of the front of the bowl 1. The direction is changed at the guide recess 3 of the part and flows to the other side of the front part of the bowl 1, where the direction is changed and flows backward in the guide recess 3 of the other side of the bowl 1. The direction is changed in the guide recessed portion 3 on the other side of the rear end portion, flows along the rear end portion of the guide recessed portion 3, reaches the partition wall portion 31, and flows forward along the partition wall portion 31 in the bowl 1. To flow down. When the cleaning water swirls and flows in the guide recess 3 as described above, a part of the cleaning water gradually enters the bowl 1 from the lower edge portion of the side opening 7 of the guide recess 3 as shown by the arrow in FIG. The bowl 1 is washed by the swirl flow.

  Here, in this invention, as shown in FIG. 4, the longitudinal cross-sectional shape of the inner surface of the guide recessed part 3 is an arc shape in the side part of the bowl 1. As shown in FIG. That is, at the side of the bowl 1, the inner surface of the guide recess 3 is an arcuate surface 32 in which the entire region from the upper end to the lower end of the side opening 7 is arcuate.

  On the other hand, as shown in FIG. 3, the end of the side of the side opening 7 on the lower surface of the rim 2 where the longitudinal sectional shape of the inner surface of the guide recess 3 is the top surface 6 of the guide recess 3 at the front of the bowl 1 portion is the horizontal portion. The remaining portion excluding the horizontal portion 8 is a front arcuate surface 33 that is arcuate. Therefore, in the front part of the bowl 1 part, the back part of the top surface 6 in the guide recess 3 is a part of the front arc-shaped surface 33 and has an arcuate curved surface.

  As described above, the end on the side opening 7 side of the lower surface of the rim 2 where the longitudinal cross-sectional shape of the inner surface of the guide recess 3 becomes the top surface 6 of the guide recess 3 at the front portion of the bowl 1 portion becomes the horizontal portion 8. Thus, when the cleaning water sprayed to the rear end portion in the guide recess 3 flows through the portion corresponding to the side portion of the bowl 1 in the guide recess 3 and reaches the front portion, the guide recess 3 Even if the cleaning water collides with the back wall in the guide recess 3 at the front of the cleaning water, the end of the top surface 6 of the front of the guide recess 3 does not have an arc shape and is horizontal. Since it becomes the part 8, it flows out upwards and does not scatter.

  In this way, by providing the horizontal portion 8 at the end of the top surface 6 at the front portion of the guide recess 3, it is possible to prevent the cleaning water from splashing upward, and thus it is possible to increase the ejection speed of the cleaning water. Thus, when the ejection speed of the washing water is increased, the bowl 1 can be effectively washed with a small amount of washing water, and the water-saving toilet 5 can be obtained.

  Here, when the trap is of the turn trap type, the flexible trap cylinder is rotated to drain the filth together with the sewage accumulated in the trap cylinder, so compared to the siphon type, siphon jet type, or flush type Since the amount of washing water to be used may be small, the present invention that can clean the inner surface of the bowl 1 with a small amount of washing water as described above is particularly applicable to the turn trap type.

  Needless to say, the present invention is not limited to the turn trap type, and can be used for a siphon type, a siphon jet type, or a flush type.

  Further, the horizontal portion 8 is provided at the end of the top surface 6 of the front portion of the guide recess 3 in spite of the provision of the horizontal portion 8 so that the washing water does not scatter upward as described above. In the side portion of the bowl 1, the longitudinal cross-sectional shape of the inner surface of the guide recess 3 is an arc shape, and the end of the guide recess 3 in the front portion of the bowl 1 on the side of the side opening 7. Since the remaining part excluding the arc is arcuate, the inside of the guide recess 3 can be easily cleaned. In particular, since the back part of the top surface 6 that is most difficult to clean in the guide recess 3 is an arcuate curved surface in both the side part and the front part of the guide recess 3, it can be easily cleaned.

  Further, in the present invention, the inner peripheral surface of the rim portion 2 is the inclined surface 9 that is inclined so as to be lower toward the bowl 1 side. Therefore, when sewage such as urine in the rim portion 2 is scattered, Since the inner peripheral surface of the rim portion 2 is an inclined surface, the inner peripheral surface of the rim portion 2 can be cleaned. It will be easy to do.

  In the above-described embodiment, the cleaning nozzle 4a constituting the cleaning water ejection portion 4 is fitted into one end portion in the left-right direction of the rear end portion of the guide recess 3 formed over the entire circumference on the lower surface side of the rim portion 2. Although the example provided with the washing nozzle fitting opening 30 was shown, the washing nozzle fitting opening 30 into which the washing nozzle 4a which comprises the washing water jet part 4 is each fitted in the both ends of the left-right direction of the rear-end part of the guide recessed part 3 is provided. May be. In this case, it flows from the left and right ends of the rear end of the guide recess 3 to the left and right sides of the front of the guide recess 3 along both sides of the guide recess 3, respectively. They meet at the center and flow into the bowl 1.

1 is an overall perspective view of the present invention. It is a partially exploded perspective view same as the above. It is sectional drawing of the front-back direction of a front part same as the above. It is sectional drawing of the left-right direction of front parts same as the above. It is a disassembled perspective view of a front part same as the above. It is a top view of a bowl part same as the above. It is a bottom view of a rim part same as the above. It is sectional drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bowl 2 Rim part 3 Guide recessed part 4 Washing water ejection part 5 Toilet bowl 6 Top surface 7 Side opening 8 Horizontal part

Claims (2)

  A guide recess that opens laterally toward the inside of the bowl is formed on the lower surface side of the rim portion provided at the upper edge opening edge of the bowl, and cleaning water is jetted into the guide recess from the rear end side of the bowl of the guide recess. In a toilet provided with a washing water ejection part, the washing water ejected from the washing water ejection part flows along the guide recess from the rear end of the guide recess and flows into the bowl from the side opening of the guide recess. In the front portion of the bowl portion, the longitudinal cross-sectional shape of the inner surface of the guide recess is an arc shape, and the end of the side opening side of the lower surface of the rim that is the top surface of the guide recess is the horizontal portion. And the rest of the toilet bowl is arcuate.   2. A toilet according to claim 1, wherein the inner peripheral surface of the rim portion is inclined so as to be lower toward the bowl side.

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