JP5841343B2 - Flush toilet - Google Patents

Description

  The present invention relates to a flush toilet bowl.

  Patent Document 1 discloses a conventional flush toilet. This flush toilet includes a toilet bowl, a drainage channel, a rim spout, and an auxiliary spout. The toilet bowl portion has a reservoir portion in which the washing water stays and a rim water passage formed in the upper peripheral portion. The drainage channel communicates with the lower end of the toilet bowl. The rim spout spouts wash water in one direction in the circumferential direction of the toilet bowl along the rim water passage. The auxiliary water outlet is opened on the surface of the toilet bowl above the reservoir. The auxiliary water discharge port communicates with the introduction port opened to the rim water passage just downstream of the rim water discharge port via the auxiliary water conduit.

  In this flush toilet, a part of the wash water discharged from the rim spout flows into the introduction port. The washing water flowing into the introduction port is discharged from the auxiliary water discharge port to the water reservoir through the auxiliary water conduit. The remaining washing water discharged from the rim water spouting port and not flowing into the introduction port flows down while turning the surface of the toilet bowl along the rim water passage. The washing water spouted from the auxiliary water outlet joins the washing water swirling on the surface of the toilet bowl, whereby the momentum of the washing water toward the water reservoir becomes strong. As a result, strong washing water flows from the reservoir to the drainage channel. For this reason, the waste in a toilet bowl can be discharged | emitted favorably.

JP 2010-236320 A

  However, in the flush toilet of Patent Document 1, a part of the wash water discharged from the rim spout flows into the introduction port, and is discharged from the auxiliary spout to the water reservoir through the auxiliary conduit. The amount of washing water flowing down the surface of the toilet bowl along the water channel decreases. If the amount of washing water is reduced in order to save water, in this flush toilet, the amount of washing water flowing down the surface of the toilet bowl will decrease, and the surface of the toilet bowl may not be sufficiently cleaned. is there.

  The present invention has been made in view of the above-described conventional situation, and even when the amount of washing water is small, the cleaning of the surface of the toilet bowl and the discharge of filth from the toilet bowl can be performed satisfactorily. Providing a flush toilet bowl that can be used is an issue to be solved.

The flush toilet of the present invention is a reservoir part in which the wash water stays, and a toilet bowl part having a rim water passage formed in the upper peripheral part,
A drainage channel communicating with the lower end of the toilet bowl,
A first spout for discharging wash water in one circumferential direction of the toilet bowl along the rim water passage;
The cleaning water discharged from the first water discharge port is formed at the rear end portion of the rim water passage and at the rear of the toilet bowl portion, and the cleaning water flowing down to the reservoir portion has a vertical swirl flow. A flow changing portion for directing the flow direction toward the water storage portion when the wash water flowing through the rim water passage collides to form ,
It is characterized by having.

  In this flush toilet, all of the wash water discharged from the first water outlet flows along the rim water passage, and flows down while turning around the surface of the toilet bowl. For this reason, even if there is little quantity of the wash water discharged from a 1st spout, this flush toilet bowl can flow wash water to the whole surface of a toilet bowl part reliably. Moreover, since the wash water flows while swirling on the surface of the toilet bowl, the wash water can flow for a long time along the surface of the toilet bowl. For this reason, this flush toilet bowl can wash | clean the surface of a toilet bowl part favorably.

  Moreover, since this flush toilet bowl forms the flow change part in the termination | terminus part in the rim water passage of the washing water discharged from the 1st spout, the washing water which flowed to the terminal part of the rim water passage flows. It collides with the changed part and flows down toward the reservoir. Since the washing water that flows down while swirling the surface of the toilet bowl portion is subjected to centrifugal force, the force acts in the horizontal outward direction and the downward flow is weak. For this reason, it is difficult for the washing water to flow into the drainage channel communicating with the lower end of the reservoir. However, the flow of the wash water swirling around the surface of the stool portion can be changed downward by colliding with the flow changing portion and the wash water flowing down toward the reservoir portion. As a result, the momentum of the washing water flowing downward toward the reservoir is increased. Since this strong wash water flows into the drainage channel via the reservoir, the filth can be discharged well from the toilet bowl.

  Therefore, the flush toilet of the present invention can satisfactorily clean the surface of the toilet bowl and discharge waste from the toilet bowl even when the amount of flush water is small.

  The flow changing part may have a flange projecting upward. In this case, it is possible to prevent the cleaning water that has collided with the flow changing unit from splashing upward. For this reason, it is possible to prevent the washing water from splashing outside the flush toilet. Moreover, since the wash water does not scatter to the outside of the flush toilet, the wash water discharged from the first spout can be effectively used for cleaning the surface of the toilet bowl and discharging filth from the toilet bowl. . Furthermore, since the lower surface of the collar portion can be washed with the cleaning water that collides with the flow changing portion, the lower surface of the collar portion can be prevented from being stained.

  The flow changing portion may be formed by recessing an outer peripheral side wall portion of the rim water passage. In this case, it can prevent that the opening area of the upper end opening of a toilet bowl part becomes small. Moreover, a collar part can be easily provided, without reducing the opening area of the upper end opening of a toilet bowl part. Furthermore, it is not necessary to increase the outer dimension of the toilet bowl, and the flush toilet can be reduced in size.

  The flow changing portion may be formed on a side where the drainage channel communicates with the toilet bowl portion, and the toilet bowl portion may have a first standing wall formed at a position facing the flow changing portion. In this case, the wash water that collides with the flow changing portion and flows down toward the reservoir portion can collide with the first standing wall and flow in the direction of the drainage channel. Thus, since the washing water flows into the drainage channel without stagnation, the waste can be discharged well from the toilet bowl.

  The first water spouting port is provided in the middle of the path where the wash water discharged from the first water discharging port reaches the flow changing unit and is close to the flow changing unit, along the rim water passage. A second water outlet that discharges the cleaning water in one direction in the circumferential direction of the toilet bowl portion that is the same direction as the cleaning water discharged from the stool may be provided. In this case, the strong wash water discharged from the second water discharge port can collide with the flow changer and flow down toward the water reservoir. For this reason, since wash water can be made to flow in into a drainage channel vigorously, discharge of filth from a toilet bowl part can be performed favorably.

  The toilet bowl portion may have a second standing wall formed along the flow direction of the wash water flowing down from the flow changing portion. In this case, the wash water flowing along the second standing wall forms a vertical swirling flow. For this reason, the wash water flowing into the water reservoir can be made into a thick bundle and flowed into the drainage channel. Therefore, waste can be discharged well from the toilet bowl.

It is a partial plane sectional view of the flush toilet bowl of an example. It is a longitudinal cross-sectional view of the flush toilet bowl of an Example. It is arrow AA sectional drawing of FIG. It is arrow BB sectional drawing of FIG. It is a principal part perspective view of the flush toilet bowl of an Example.

  An embodiment embodying the flush toilet of the present invention will be described with reference to the drawings.

<Example>
The flush toilet bowl of an Example is provided with the toilet bowl part 10, the drainage channel 20, the 1st water outlet 31, the 2nd water outlet 32, and the flow change part 40, as shown in FIGS. The toilet bowl part 10 has the standing wall 12 which falls suddenly downward in the center part which approached the back side of the toilet bowl part 10 seeing the flush toilet bowl from the front end side. The part surrounded by the standing wall 12 is substantially rhombus in plan view. The toilet bowl portion 10 has a water storage portion 11 formed to extend rearward and downward from the lower portion of the standing wall 12. That is, the toilet bowl part 10 has the reservoir part 11 in which a wash water retains in the lower part.

  Moreover, the toilet bowl part 10 has the rim water passage 13 formed in the upper peripheral part. The rim water passage 13 extends from the upper end of the side wall 13B, a shelf 13A that gently slopes toward the center of the toilet bowl 10, a side wall 13B that rises continuously from the shelf 13A to the outer peripheral side. And a flange 13C protruding upward. When washing water flows through the rim water passage 13, the washing water can be prevented from splashing outside by the side wall portion 13B and the flange portion 13C.

In the drainage channel 20, the inflow port 21 </ b> A is continuously communicated with the lower end of the toilet bowl 10, and the ascending channel 21 that extends rearward and upward and the downstream end of the ascending channel 21 extend vertically downward. And a descending path 22. The downstream end opening 22A of the descending path 22 opens downward, and is inserted into and connected to the upstream end opening of the connecting member 3 . The flush toilet can communicate the drainage channel 20 with the drainage pipe drawn out to the floor surface via the connecting member 3.

  The first water outlet 31 is open on the left side when viewed from the front end side of the flush toilet, and forwards from the center of the toilet bowl 10 in the front-rear direction so as to be continuous with the rim water passage 13. . For this reason, the wash water discharged from the first water discharge port 31 flows along the rim water passage 13 in one circumferential direction (counterclockwise direction) of the toilet bowl 10. The first water discharge port 31 is formed at the tip of the first water discharge space 31A. The first water discharge space 31 </ b> A is formed to extend in the front-rear direction on the left side when the flush toilet is viewed from the front end side. In the first water discharge space 31A, the front end portion of the left water discharge pipe 2L of the wash water distributor 2 is inserted from the rear end portion.

  The washing water distributor 2 has an inlet 2A, a left water discharge pipe 2L formed by branching left and right from the inlet 2A, and a right water discharge pipe 2R. The flush water distributor 2 is disposed at the rear of the flush toilet. The inflow port 2A is inserted with a drain of the washing tank 1 which is placed and fixed on the rear part of the flush toilet. The wash water distributor 2 distributes the wash water that has flowed into the inflow port 2A into the left water discharge pipe 2L and the right water discharge pipe 2R, and can discharge the wash water from the respective tip portions.

  The second water discharge port 32 is on the right side when the flush toilet is viewed from the front end side, and opens to the rear of the toilet bowl portion 10 in the left direction. For this reason, the wash water discharged from the second water discharge port 32 is unidirectional in the circumferential direction of the toilet bowl 10 (reverse to the wash water discharged from the first water discharge port 31 along the rim water passage 13). (Clockwise direction). The second water discharge port 32 is formed at the left end of the second water discharge space 32A. The second water discharge space 32A is formed on the right side when the flush toilet is viewed from the front end side. In the second water discharge space 32A, the front end portion of the right water discharge pipe 2R of the wash water distributor 2 is inserted from the rear end portion.

  As shown in FIGS. 1, 4 and 5, the flow changing unit 40 is seen from the front end side of the end portion in the rim water passage 13 of the wash water discharged from the first water discharge port 31, that is, the flush toilet. It is formed in the rear corner on the left side of the toilet bowl 10. For this reason, the 2nd water outlet 32 is provided in the middle of the path | route in which the wash water discharged from the 1st water outlet 31 reaches | attains the flow change part 40, and the side close | similar to the flow change part 40 side. become. Further, the flow changing unit 40 is formed on the side where the drainage channel 20 communicates with the toilet bowl 10, that is, on the rear side of the toilet bowl 10.

  The flow changing portion 40 is formed by denting the outer side wall portion 13B of the rim water passage 30 outward. For this reason, it can prevent that the opening area of the upper end opening of the toilet bowl part 10 becomes small. The flow changing unit 40 is continuous with the shelf 40A that is continuous with the shelf 13A of the rim water passage 13, the side wall 40B that is continuous with the side wall 13B of the rim water passage 13, and the flange 13C of the rim water passage 13. It has the collar part 40C overhanging. Thus, the collar part 40C can be easily provided without reducing the opening area of the upper end opening of the toilet bowl 10. Moreover, it is not necessary to enlarge the external dimension of the toilet bowl part 10, and size reduction of a flush toilet bowl can be achieved.

  The side wall 13B of the rim water passage 13 on the upstream side from the flow changing unit 40 is gently bent along the outer peripheral surface of the toilet bowl 10 so that the washing water flows smoothly in the circumferential direction. On the other hand, since the side wall part 40B of the flow changing part 40 is bent sharply, the washing water discharged from the first water discharge port 31 and the second water discharge port 32 and flowing through the rim water passage 13 collides with the flow. The direction changes. That is, the flow changing unit 40 is formed so that the cleaning water that has collided with the side wall part 40 </ b> B of the flow changing unit 40 flows down toward the water storage unit 11.

  As shown in FIGS. 1 and 3, the toilet bowl portion 10 is formed along the flow direction of the wash water in which the standing wall 12 located on the left front side when the flush toilet is viewed from the front end side flows down from the flow changing portion 40. ing. That is, the 2nd standing wall 12B is comprised. Moreover, the toilet bowl part 10 is formed in the position where the standing wall 12 located in the right front side seeing the flush toilet bowl from the front end side faces the flow changing part 40. That is, the first standing wall 12A is configured.

  In the flush toilet having such a configuration, when the flush water stored in the wash tank 1 is drained from the drain port and the toilet bowl is washed, the first and second spouts 31 and 2 are discharged via the flush water distributor 2. Wash water is discharged from the water port 32. All of the wash water discharged from the first water outlet 31 flows along the rim water passage 13 and flows down while turning around the surface of the toilet bowl 10. For this reason, even if there is little quantity of the wash water discharged from the 1st spout 31, the wash water can be reliably poured over the whole surface of the toilet bowl part 10. FIG. Further, since the washing water flows while swirling on the surface of the toilet bowl 10, the washing water can flow for a long time along the surface of the toilet bowl 10. For this reason, this flush toilet bowl can wash | clean the surface of the toilet bowl part 10 favorably.

  In addition, the flush toilet is discharged from the first water discharge port 31 and the second water discharge port 32 to the flow changing unit 40, and the wash water flowing through the rim water passage 13 collides and flows down toward the water storage unit 11. To do. The washing water flowing down while swirling the surface of the stool part 10 has a centrifugal force, so that the force acts in the horizontal outward direction and the downward flow is weak. For this reason, it is difficult for the washing water to flow into the drainage channel 20 communicating with the lower end portion of the water reservoir 11. However, the flow of the wash water that swirls around the surface of the toilet bowl 10 can be changed downward by colliding with the flow changing unit 40 and joining the wash water flowing down toward the water storage unit 11. In particular, since the strong wash water discharged from the second water discharge port 32 collides with the flow changing unit 40 and flows down toward the water reservoir 11, the force of the wash water flowing downward toward the water reservoir 11 is obtained. Becomes stronger. Since this strong wash water flows into the drainage channel 20 via the water reservoir 11, the filth can be discharged well from the toilet bowl 10.

  Therefore, the flush toilet bowl of the embodiment can satisfactorily clean the surface of the toilet bowl 10 and discharge the filth from the toilet bowl 10 even when the amount of washing water is small.

  The flange 40C of the flow changing unit 40 can prevent the washing water colliding with the side wall 40B of the flow changing unit 40 from splashing upward. For this reason, it is possible to prevent the washing water from splashing outside the flush toilet. Moreover, since the wash water supplied to the flush toilet bowl does not scatter outside, the wash water can be effectively used for washing the surface of the toilet bowl 10 and discharging filth from the toilet bowl 10. Furthermore, since the lower surface of the collar part 40C can be washed with cleaning water that collides with the side wall part 40B of the flow changing part 40, it is possible to prevent contamination of the lower surface of the collar part 40C.

  The washing water flowing down from the flow changing unit 40 toward the water storage unit 11 flows along the second standing wall 12B. At this time, the washing water forms a swirling flow in the vertical direction, and the washing water becomes a thick bundle flow. Thereafter, the washing water collides with the first standing wall 12 </ b> A and changes the flow direction toward the drainage channel 20. As described above, since the washing water does not stagnate and flows into the drainage channel 20 vigorously as a thick bundle, the filth can be discharged well from the toilet bowl 10.

The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the embodiment, the second water outlet is provided, but the second water outlet may not be provided only by the first water outlet.
(2) In the embodiment, the flow changing portion is formed by recessing the outer peripheral side wall portion of the rim water passage outward. However, the flow changing portion may be formed by standing a barrier on the shelf portion of the rim water passage.
(3) Although the first standing wall and the second standing wall are provided in the embodiment, these may not be provided.
(4) In the embodiment, the cleaning tank for storing the cleaning water is provided. However, the cleaning water may be supplied directly from the water supply source via the on-off valve without the cleaning tank.
(5) In the embodiment, the flow changing unit is provided on the downstream side of the second water outlet, but the flow changing unit may be provided in front of the second water outlet.
(6) In the embodiment, the cleaning water distributor is provided, but the cleaning water distributor may not be provided, and water may be led directly from the cleaning tank to the first water outlet and the second water outlet.

DESCRIPTION OF SYMBOLS 10 ... Toilet bowl part 11 ... Reservoir part 12A ... 1st standing wall 12B ... 2nd standing wall 13 ... Rim waterway 20 ... Drainage channel 31 ... 1st outlet 32 ... 2nd outlet 40 ... Flow changing part 40C ... Buttocks

Claims (6)

A reservoir part in which washing water stays, and a toilet bowl part having a rim water passage formed in the upper peripheral part,
A drainage channel communicating with the lower end of the toilet bowl,
A first spout for discharging wash water in one circumferential direction of the toilet bowl along the rim water passage;
The cleaning water discharged from the first water discharge port is formed at the rear end portion of the rim water passage and at the rear of the toilet bowl portion, and the cleaning water flowing down to the reservoir portion has a vertical swirl flow. A flow changing portion for directing the flow direction toward the water storage portion when the wash water flowing through the rim water passage collides to form ,
A flush toilet, characterized by comprising.   The flush toilet according to claim 1, wherein the flow changing portion has a collar portion protruding upward.   The flush toilet according to claim 1 or 2, wherein the flow changing portion is formed by recessing an outer peripheral side wall of the rim water passage outward.   The flow changing portion is formed on the side where the drainage channel communicates with the toilet bowl, and the toilet bowl has a first standing wall formed at a position facing the flow changing portion. A flush toilet according to any one of claims 1 to 3.   The first water spouting port is provided in the middle of the path where the wash water discharged from the first water discharging port reaches the flow changing unit and is close to the flow changing unit, along the rim water passage. 5. A second water discharge port for discharging the cleaning water in one circumferential direction of the toilet bowl, which is the same direction as the cleaning water discharged from the stool, is provided. The flush toilet according to the description.   The flush type according to any one of claims 1 to 5, wherein the toilet bowl portion has a second standing wall formed along a flow direction of the wash water flowing down from the flow changing portion. Toilet bowl.

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