JP2016166452A - Hot water washing toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water washing toilet seat device capable of achieving improvement of cleanliness of a nozzle device of the hot water washing toilet seat device at relatively low cost.SOLUTION: A hot water washing toilet seat device includes a nozzle washing part which is formed at a bottom wall 11b1 of a second casing 11b and which performs washing of tip parts T1, T2 of a nozzle device 16 by using relief water W discharged by a relief valve. The nozzle washing part includes: a washing part 42 for circulating the relief water W along the tip parts T1, T2; and a guide part 41 for guiding the relief water W so as to flow toward the washing part 42. The washing part 42 includes: a first introduction part for introducing the relief water W flowing in the guide part 41 into the washing part 42 from the left side of the tip parts T1, T2; a second introduction part for introducing the relief water W flowing in the guide part 41 into the washing part 42 from the right side of the tip parts T1, T2; and through-holes 11b6, 11b7 for leading out the relief water W which has washed the tip parts T1, T2 into a toilet bowl part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a warm water cleaning toilet seat device.

  As a type of warm water washing toilet seat device, one shown in Patent Document 1 is known. As shown in FIG. 2 of Patent Document 1, the warm water cleaning toilet seat device includes a cylinder 5 that accommodates a nozzle 4 that discharges cleaning water for cleaning a human body part so as to advance and retreat, a nozzle that discharges cleaning water and discharges the cleaning water. A relief valve 7a for adjusting the pressure of the wash water supplied to 4, a base plate 2 provided with a cylinder 5, and a reservoir 8 for storing relief water as wash water discharged from the relief valve 7a; The water discharge part 8c which discharges relief water from the water storage part 8 is provided. The relief water discharged from the water discharge part 8 c flows along the tip surfaces of the nozzle 4 and the cylinder 5, thereby washing the tip surfaces of the nozzle 4 and the cylinder 5.

JP 2013-227794 A

  However, in the warm water washing toilet seat device of Patent Document 1, since the relief water does not flow along the side surface of the front end portion of the cylinder 5, the cleanliness on the side surface of the front end portion of the cylinder 5 is lower than the front end surface of the cylinder 5. . In order to improve the cleanliness of the side surface of the tip of the cylinder 5, in the warm water washing toilet seat device shown in FIG. 5 of Patent Document 1, the relief water is discharged to the side of the tip of the cylinder 5 using a hose. Yes. In this case, since it is necessary to add a hose, the number of parts increases, resulting in an increase in cost of the warm water cleaning toilet seat device.

  Therefore, the present invention has been made to solve the above-described problems, and an object thereof is to improve the cleanliness of the nozzle device at a relatively low cost.

  In order to solve the above problems, a warm water cleaning toilet seat device according to claim 1 is a nozzle device having a nozzle for cleaning a human body part by ejecting cleaning water supplied from a water source, and a toilet bowl having a toilet bowl portion. The nozzle device is attached to the nozzle device, holds the toilet seat, is disposed between the water source and the nozzle device in the casing, and discharges the washing water supplied from the water source. A relief valve that adjusts the pressure of the supplied cleaning water, and a nozzle cleaning unit that is formed at the bottom of the casing and that uses the relief water that is the cleaning water discharged by the relief valve to clean the cleaned part of the nozzle. The nozzle cleaning unit performs cleaning of the portion to be cleaned by circulating relief water along the portion to be cleaned of the nozzle. A first introduction for introducing the relief water flowing through the guide portion into the washing portion from one side of the portion to be washed; and a cleaning portion for guiding the relief water to flow toward the washing portion. And a second introduction part for introducing relief water flowing through the guide part into the cleaning part from the other side of the part to be cleaned, and an opening from the cleaning part toward the toilet bowl, And a derivation unit that leads out to the bowl part.

  According to this, relief water is introduce | transduced into the washing | cleaning part from the one side and the other side of the to-be-cleaned part of a nozzle, and distribute | circulates along the to-be-cleaned part of a nozzle. Therefore, the entire portion to be cleaned of the nozzle can be reliably cleaned. Moreover, since the nozzle washing | cleaning part is formed in the bottom part of a casing, without using members, such as a hose, the number of parts of a warm water washing toilet seat apparatus does not increase. Therefore, the cleanliness of the nozzle device can be improved at a lower cost compared to the conventional warm water cleaning toilet seat device.

It is a perspective view which shows the state in which the warm water washing toilet seat apparatus by this invention is installed in the toilet bowl. It is a fragmentary top view which shows the inside of the main-body part of the warm water washing toilet seat apparatus shown in FIG. It is a partial expansion perspective view which shows the front-end part inside the main-body part shown in FIG. FIG. 4 is a partial cross-sectional view of the front end portion inside the main body along the line IV-IV shown in FIG. 3. It is a schematic diagram of the washing | cleaning unit shown in FIG. It is an axial sectional view of the relief valve shown in FIG. FIG. 3 is a partial plan view of the inside of the main body shown in FIG. 2 and shows a state in which a nozzle device is removed. It is the elements on larger scale of the nozzle washing | cleaning part by the VIII arrow shown in FIG. It is an expanded sectional view of the protrusion part shown in FIG. It is a partial top view inside a main-body part which shows the modification of the nozzle washing | cleaning part of the warm water washing toilet seat apparatus which concerns on this invention, and represents the state which removed the nozzle apparatus.

  Hereinafter, an embodiment of a warm water washing toilet seat device 1 according to the present invention will be described. In this specification, for convenience of explanation, the upper side and the lower side in FIG. 1 are the upper and lower sides of the hot water washing toilet seat device 1, respectively, and the lower right side and the upper left side are respectively the front and rear of the hot water washing toilet seat device 1, respectively. The lower left side and the upper right side will be described as the left side and the right side of the warm water washing toilet seat device 1, respectively. Further, FIGS. 1, 2, 4 and 7 show arrows indicating the respective directions.

  As shown in FIG. 1, the warm water washing toilet seat device 1 is attached to a seat-type toilet 2 (corresponding to a toilet in the present invention) on a toilet seat installation surface 2a (see FIG. 4). The seat-type toilet 2 has a toilet bowl 2b. The warm water cleaning toilet seat device 1 includes a main body 10, a toilet seat 20, and a toilet lid 30. As shown in FIGS. 1 and 2, the main body 10 includes a casing 11, a cleaning unit 12 that cleans a local part of the human body, and a control device (not shown) that controls the hot water cleaning toilet seat device 1.

The casing 11 is formed in a hollow box shape. The casing 11 is made of a resin material such as polypropylene and is formed by injection molding. The casing 11 houses a cleaning unit 12 and a control device. The casing 11 includes a first casing 11a and a second casing 11b.
The 1st casing 11a is formed in the box shape which covers the upper part of the main-body part 10, and open | releases a bottom part. The first casing 11a rotatably holds the toilet seat 20 and the toilet lid 30.

  The second casing 11 b constitutes the bottom of the casing 11. As shown in FIGS. 2 to 4, the second casing 11b has a bottom wall 11b1, a peripheral side wall 11b2, a toilet bowl facing wall 11b3, a connection wall 11b4, and a recess 11b5. The bottom wall 11b1 is disposed on the toilet seat installation surface 2a and is formed in a planar rectangular plate shape so as to close the bottom of the first casing 11a. The peripheral side wall 11b2 is formed so as to protrude upward over the entire periphery of the peripheral edge of the bottom wall 11b1.

  As shown in FIGS. 3 and 4, the toilet bowl facing wall 11 b 3 is formed in a straight cross section that is inclined from the front to the rear as it goes from the top to the bottom so as to face the toilet bowl 2 b. The connection wall 11b4 is formed so as to connect the lower end of the toilet bowl facing wall 11b3 and the bottom wall 11b1. The connection wall 11b4 is formed so as to incline upward from below as it goes rearward from the lower end of the toilet bowl facing wall 11b3. The toilet bowl facing wall 11b3 and the connecting wall 11b4 are formed with a first through hole 11b6 through which a posterior nozzle 16b (described later) passes and a second through hole 11b7 through which a bidet nozzle 16c (described later) passes (FIG. 3). FIG. 4 and FIG. 8). The first through hole 11b6 and the second through hole 11b7 are formed so as to open toward the toilet bowl 2b. The recess 11b5 is a space formed by the toilet bowl facing wall 11b3 and the connection wall 11b4 so as to be recessed downward from the bottom wall 11b1.

  The cleaning unit 12 is disposed in the second casing 11b. As shown in FIGS. 2 and 5, the cleaning unit 12 includes a water supply valve 13, a hot water tank 14, a connection hose 15, and a nozzle device 16.

  As shown in FIG. 5, the water supply valve 13 is a water supply hose (not shown) that constitutes a first flow path L <b> 1 through which wash water flows to a branch faucet 3 a attached to a water pipe 3 (corresponding to a water source of the present invention). ) Is connected through. The branch tap 3a introduces the clean water flowing through the water pipe 3 into the water supply hose (first flow path L1) as cleaning water. The water supply valve 13 supplies cleaning water introduced from the water supply hose to the hot water tank 14. The water supply valve 13 constitutes a second flow path L <b> 2 that is a flow path of cleaning water between the water supply hose and the hot water tank 14. The water supply valve 13 includes a strainer 13a, a check valve 13b, a constant flow valve 13c, a water stop electromagnetic valve 13d, and a relief valve 13e.

  The strainer 13a removes dust and the like contained in clean water. The check valve 13b allows the flow of wash water from the branch tap 3a to the hot water tank 14, but restricts the flow in the reverse direction. The constant flow valve 13c maintains a constant flow rate of the cleaning water flowing through the second flow path L2. The water stop solenoid valve 13d is configured to open or close the second flow path L2 according to a control signal from the control device. In the present embodiment, the water stop solenoid valve 13d closes the second flow path L2 during normal time (non-control time). The relief valve 13e adjusts the pressure of the cleaning water supplied to the hot water tank 14 and the nozzle device 16 by discharging the cleaning water supplied from the water pipe 3.

  As shown in FIG. 6, the relief valve 13e includes a valve casing 13e1, a valve seat 13e2, a valve body 13e3, a spring 13e4 that urges the valve body 13e3 toward the valve seat 13e2, a valve body 13e3, A holding member 13e5 for holding the spring 13e4 and a discharge pipe 13e6 for discharging the washing water are provided. The valve seat 13e2 and the holding member 13e5 are fixed to the valve casing 13e1, for example, by press fitting. The valve body 13e3 is held by a holding member 13e5 so as to be movable in the axial direction of the valve casing 13e1. When the pressure value of the washing water flowing through the second flow path L2 is equal to or higher than a predetermined pressure value (for example, 50 kPa), the valve body 13e3 moves to the right side of FIG. 6 as indicated by a broken line, and the valve seat 13e2 and the valve body By separating from 13e3, the wash water is discharged from the discharge pipe 13e6 as relief water W (indicated by a dashed arrow). On the other hand, when the pressure value of the wash water flowing through the second flow path L2 is smaller than the predetermined pressure value, the discharge of the wash water from the discharge pipe 13e6 is restricted by the contact between the valve seat 13e2 and the valve body 13e3.

  The hot water tank 14 stores the supplied wash water and heats it. As shown in FIG. 5, the hot water tank 14 includes a tank portion 14a, a heater 14b, and a temperature sensor 14c. The tank part 14a stores washing water inside. The tank portion 14a is formed in a hollow box shape by a resin material such as polypropylene, for example. The heater 14b heats the cleaning water stored in the tank portion 14a based on a control signal from the control device. The heater 14b is, for example, a sheathed heater. The temperature sensor 14c detects the temperature of the wash water stored in the tank unit 14a, and transmits the detection result to the control device.

  The connection hose 15 connects the hot water tank 14 and the nozzle device 16 and constitutes a third flow path L3 that is a flow path of cleaning water. The connection hose 15 is a tubular hose formed of, for example, nitrile rubber or the like. In the present embodiment, the water supply valve 13 and the hot water tank 14 are directly connected without using a hose or the like.

  The nozzle device 16 performs cleaning of the human body part by ejecting cleaning water toward the human body part. The nozzle device 16 includes a flow path switching valve 16a, a buttocks nozzle 16b for ejecting cleaning water for performing butt cleaning, a bidet nozzle 16c for ejecting cleaning water for performing bidet cleaning, a flow path switching valve 16a and a butting nozzle 16b. And a fourth flow path L4 that constitutes the flow path of the wash water, and a fifth flow path L5 that connects the flow path switching valve 16a and the bidet nozzle 16c and constitutes the flow path of the wash water. . The flow path switching valve 16a and each nozzle 16b, 16c are directly connected without a hose or the like. The buttocks nozzle 16b and the bidet nozzle 16c correspond to the nozzles of the present invention.

  The flow path switching valve 16a is connected to the connection hose 15, and the connection hose 15 and the fourth flow path L4 from the origin position where both the connection hose 15 and the fourth flow path L4 and the fifth flow path L5 do not communicate. Is selectively switched to one of a position where the connection hose 15 and the connection hose 15 and the fifth flow path L5 communicate with each other, and the washing water from the hot water tank 14 is led to the selected flow path. Further, the flow path switching valve 16a adjusts the flow rate of the wash water ejected from each nozzle 16b, 16c by varying the flow path area and varying the flow path resistance based on the control signal from the control device. To do. The washing water led out to the fourth flow path L4 is ejected from the buttocks nozzle 16b. Moreover, the wash water led out to the fifth flow path L5 is ejected from the bidet nozzle 16c.

The buttocks nozzle 16b includes a cylinder portion 16b1 and a nozzle portion 16b2, as shown in FIG.
The cylinder portion 16b1 is formed in a cylindrical shape extending in the front-rear direction, and has a cleaning position P1 that is a position where the nozzle portion 16b2 is cleaned in the human body portion, and a storage position P2 that is a position stored in the cylinder portion 16b1 ( 3 (see FIG. 3 and FIG. 4). The cylinder portion 16b1 is disposed so as to penetrate the first through hole 11b6 and the front end surface of the cylinder portion 16b1 is located on the same plane as the front side surface of the toilet bowl facing wall 11b3 (see FIGS. 3 and 4). ).
The nozzle portion 16b2 has an ejection hole 16b2a for ejecting cleaning water at the front end. When cleaning the human body part, the nozzle portion 16b2 ejects cleaning water from the ejection hole 16b2a at the cleaning position P1. On the other hand, as shown in FIG. 3, the nozzle portion 16b2 is located at the storage position P2 when the human body portion is not washed. In this case, the cylinder portion 16b1 and the nozzle portion 16b2 are formed so that the distal end surface of the cylinder portion 16b1 and the distal end surface 16b2b of the nozzle portion 16b2 are located on the same plane (see FIGS. 3 and 4).

  The bidet nozzle 16c includes a cylinder portion 16c1 and a nozzle portion 16c2 formed so as to penetrate the second through hole 11b7, similarly to the cylinder portion 16b1 and the nozzle portion 16b2 of the buttocks nozzle 16b. The nozzle portion 16c2 is formed with an ejection hole 16c2a and a tip surface 16c2b (see FIGS. 2 and 3), similarly to the nozzle portion 16b2. As shown in FIGS. 3 and 4, the first tip T1 that is the tip T of the buttocks nozzle 16b and the second tip T2 that is the tip of the bidet nozzle 16c are located in the recess 11b5.

  The control device is electrically connected to the water stop solenoid valve 13d, the temperature sensor 14c, the heater 14b, and the flow path switching valve 16a. Based on the signal detected by the temperature sensor 14c, the control device controls the heater 14b to adjust the temperature of the cleaning water to a predetermined temperature (eg, 39 ° C.). In addition, when a user operates a switch (not shown) for cleaning a human body part in an operation unit (not shown), and the control device receives a control signal corresponding to the operation, the flow rate of cleaning water is set to a predetermined flow rate. The water stop electromagnetic valve 13d and the flow path switching valve 16a are controlled so as to be (for example, 0.4 L / min), and washing water is ejected from the buttocks nozzle 16b or the bidet nozzle 16c toward the local body part.

  Moreover, the warm water washing toilet seat apparatus 1 is provided with the nozzle washing | cleaning part 40 which wash | cleans the to-be-washed | cleaned part of the nozzle apparatus 16, as shown in FIG. 2 and FIG. In the present embodiment, the portion to be cleaned of the nozzle device 16 is the tip portion T (the first tip portion T1 and the second tip portion T2) of the nozzle device 16. The tip portion T is a portion surrounded by a cleaning unit 42 described later. The nozzle cleaning unit 40 performs cleaning using the relief water W that is the cleaning water discharged from the relief valve 13e. The flow of relief water W is indicated by arrows in FIGS. 3, 7, 8 and 9. The nozzle cleaning unit 40 includes a guide unit 41 and a cleaning unit 42.

  As shown in FIG. 7, the guide portion 41 is formed in the second casing 11 b and guides the relief water W discharged by the relief valve 13 e so as to flow toward the cleaning portion 42. In this embodiment, since the relief valve 13e is arrange | positioned on the left side of the washing | cleaning part 42, the guide part 41 guides the relief water W so that it may go rightward from the relief valve 13e. The guide part 41 is formed by the bottom wall 11b1, the connection wall 11b4, and the guide wall 41a. The guide wall 41a protrudes upward from the bottom wall 11b1 and the connection wall 11b4 and is formed in a planar U shape that opens to the right. The relief water W is discharged from the discharge pipe 13e6 of the relief valve 13e toward the inside of the guide wall 41a.

Moreover, the guide part 41 is further provided with the protrusion part 41b and the rectification | straightening side wall 41c.
As shown in FIGS. 8 and 9, the protruding portion 41b is formed in a columnar shape protruding upward from the bottom wall 11b1 inside the guide wall 41a. Moreover, the protrusion part 41b is formed in the position where the relief water W discharged | emitted from the discharge pipe 13e6 directly hits.
The rectifying side wall 41 c rectifies the relief water W flowing through the guide portion 41. The rectifying side wall 41c protrudes upward from the bottom wall 11b1 on the inner side of the guide wall 41a, is formed to extend in the left-right direction, and is formed to be bent forward at the right end portion.

  The cleaning unit 42 cleans the tip portions T1 and T2 by causing the relief water W to flow along the tip portions T1 and T2. The cleaning part 42 is formed by a side wall surrounding each of the tip parts T1 and T2. Specifically, as shown in FIGS. 7 and 8, the cleaning unit 42 is formed by being divided by five side walls 42 a to 42 e so as to have three openings 42 f to 42 h.

  The first side wall 42a is formed on the left side of the first tip T1 so as to extend rearward from the front end portions of the toilet bowl facing wall 11b3 and the peripheral side wall 11b2. The first side wall 42a is formed at a first predetermined distance from the first tip portion T1. The first predetermined distance is set to a distance at which the relief water W flowing through the cleaning unit 42 flows along the left side of the first tip portion T1. The first side wall 42a has a stepped portion 42a1 (corresponding to the weir portion of the present invention) on the rear side. The step portion 42a1 allows the relief water W that has flowed from the guide portion 41 to overflow from the upper end into the cleaning portion 42, and is introduced into the cleaning portion 42 from the left side of the first tip portion T1.

  The second side wall 42b is formed to extend rearward from the front end of the toilet bowl facing wall 11b3 and the peripheral side wall 11b2 between the buttocks nozzle 16b and the bidet nozzle 16c. The second side wall 42b is formed at a second predetermined distance from the first tip portion T1 and at a third predetermined distance from the second tip portion T2. The second predetermined distance is set to a distance at which the relief water W flowing through the cleaning unit 42 flows along the right side of the first tip portion T1. The third predetermined distance is set to a distance at which the relief water W flowing through the cleaning unit 42 flows along the left side of the second tip portion T2.

  The third side wall 42c is formed to extend rearward from the front end of the toilet bowl facing wall 11b3 and the peripheral side wall 11b2 on the right side of the second tip T2. The third side wall 42c is formed a fourth predetermined distance away from the second tip portion T2. The fourth predetermined distance is set to a distance at which the relief water W flowing through the cleaning unit 42 flows along the right side of the second tip portion T2. The fourth side wall 42d protrudes upward from the connection wall 11b4 behind the first through hole 11b6 and is formed to extend in the left-right direction. The fifth side wall 42e protrudes upward from the connection wall 11b4 behind the second through hole 11b7 and is formed to extend in the left-right direction.

  Moreover, the washing | cleaning part 42 is divided into the 1st washing | cleaning part C1 and the 2nd washing | cleaning part C2 by the five side walls 42a-42e mentioned above. The first cleaning portion C1 is formed by the toilet bowl facing wall 11b3, the connection wall 11b4, the first side wall 42a, the second side wall 42b, and the fourth side wall 42d, and is a space in which the first tip portion T1 is cleaned. is there. The second cleaning portion C2 is formed by the toilet bowl facing wall 11b3, the connection wall 11b4, the second side wall 42b, the third side wall 42c, and the fifth side wall 42e, and the second tip end portion T2 is cleaned. It is space.

  The first opening 42f is formed between the first side wall 42a and the fourth side wall 42d. 42 f of 1st opening introduce | transduces the relief water W which flows through the guide part 41 into the 1st washing | cleaning part C1 from the left side of 1st front-end | tip part T1 (front-end | tip part T). Thus, the first opening 42f and the stepped portion 42a1 introduce the relief water W flowing through the guide portion 41 into the first cleaning portion C1 (cleaning portion 42) from the left side of the first tip portion T1 (tip portion T). To do. Hereinafter, the first opening portion 42f and the stepped portion 42a1 are referred to as a first introduction portion.

  The second opening 42g is formed between the fourth side wall 42d and the fifth side wall 42e. The second opening 42g introduces the relief water W flowing through the guide part 41 into the second cleaning part C2 from the rear side of the second tip part T2. Since the second tip portion T2 is located on the right side of the center of the tip portion T, the second opening 42g introduces the relief water W flowing through the guide portion 41 into the second cleaning portion C2 from the right side of the tip portion T. .

  The third opening 42h is formed between the fifth side wall 42e and the third side wall 42c. The third opening 42h introduces the relief water W flowing through the guide part 41 into the second cleaning part C2 from the right side of the second tip part T2 (tip part T). Thus, the 2nd opening part 42g and the 3rd opening part 42h introduce | transduce the relief water W which flows through the guide part 41 into the 2nd washing | cleaning part C2 (washing | cleaning part 42) from the right side of the front-end | tip part T. FIG. Hereinafter, the second opening 42g and the third opening 42h are referred to as a second introduction part. The first opening 42f, the second opening 42g, and the third opening 42h correspond to the opening of the present invention.

  Since the first introduction part is formed on the guide part 41 side (left side) from the second introduction part, the relief water W flowing through the guide part 41 reaches the first introduction part earlier than the second introduction part. Further, the flow rate of the relief water W introduced from the first introduction unit to the first cleaning unit C1 and the flow rate of the relief water W introduced from the second introduction unit to the second cleaning unit C2 are approximately the same flow rate. Thus, the flow path resistance of the first introduction part is set to be larger than the flow path resistance of the second introduction part.

  The setting of the channel resistance of each introduction part will be described. The channel resistance obtained by combining the channel resistances of the respective introduction portions is derived based on the flow rate of the relief water W. In this embodiment, since the distance between the relief valve 13e and the second introduction portion is longer than the distance between the relief valve 13e and the first introduction portion, the pressure of the relief water W that has flowed to the second introduction portion. The loss is larger than the pressure loss of the relief water W that has flowed to the first introduction part. Therefore, when the channel resistance of the first introduction part and the channel resistance of the second introduction part are the same, the relief introduced from the second introduction part to the second cleaning part C2 due to the difference in pressure loss. The flow rate of the water W is less than the flow rate of the relief water W introduced from the first introduction unit to the first cleaning unit C1. Therefore, based on the difference in pressure loss, the difference in flow path resistance between the first introduction part and the second introduction part is derived. Then, from the difference between the flow resistances and the flow resistance obtained by combining the flow resistances of the introduction sections described above, the flow resistance of each introduction section is increased so that the flow resistance of the first introduction section is increased. Is set. The flow path resistance of each introduction part is determined by adjusting the size of each opening part 42f, 42g, 42h and the height and width of the step part 42a1. In addition, the channel resistance of each introduction portion is confirmed by actually measuring the flow rate and the like through experiments and the like.

  Furthermore, the size of the first opening 42f and the height of the step 42a1 are determined from the left as the relief water W introduced from the step 42a1 and the first opening 42f to the cleaning unit 42 moves from the rear to the front. It is set to flow in the direction D1 toward the right.

  Further, the flow rate of the relief water W introduced from the third opening 42h to the second cleaning portion C2 is larger than the flow rate of the relief water W introduced from the second opening 42g to the second cleaning portion C2. The flow path resistance of the second opening 42g is set to be larger than that of the third opening 42h. Specifically, the size of the second opening 42g is set to be smaller than the size of the third opening 42h.

  In addition, three rectifying walls 42 i to 42 k are further formed in the cleaning unit 42. The rectifying walls 42 i to 42 k rectify the relief water W flowing through the cleaning unit 42. The first rectifying wall 42i is formed between the first side wall 42a and the first through hole 11b6 so as to extend rearward from the toilet bowl facing wall 11b3. The second rectifying wall 42j is formed between the third side wall 42c and the second through hole 11b7 so as to extend rearward from the toilet bowl facing wall 11b3. Further, the upper ends of the rectifying walls 42i and 42j are set to be positioned below the upper ends of the side walls 42a, 42b and 42c. The rectifying walls 42 i and 42 j rectify the relief water W so as to follow the tip portion T.

  The third rectifying wall 42k protrudes upward from the connection wall 11b4 and the bottom wall 11b1, and is formed so as to incline from the left to the right as it goes rearward from the rear end portion of the third side wall 42c. Yes. That is, the relief water W flowing along the third rectifying wall 42k flows in the direction from the right to the left as it goes from the rear to the front.

  Moreover, the 1st through-hole 11b6 and the 2nd through-hole 11b7 discharge | emit the relief water W which wash | cleaned the front-end | tip part T to the toilet bowl part 2b. The first through hole 11b6 and the second through hole 11b7 correspond to the lead-out part of the present invention.

  Next, the cleaning of the tip portion T of the nozzle device 16 performed by the nozzle cleaning unit 40 will be described along the flow of the relief water W. For example, when a user operates a switch (not shown) for starting the cleaning of the tip T in the operation unit and the control device receives a control signal corresponding to the operation, the cleaning of the tip T of the nozzle device 16 starts. Is done. Specifically, the control device sets the flow path switching valve 16a to the origin position and opens the second flow path L2 by the water stop electromagnetic valve 13d. As a result, the wash water is supplied to the second flow path L2, and the pressure value of the wash water in the second flow path L2 becomes equal to or higher than the predetermined pressure value, so that the relief water W is discharged from the discharge pipe 13e6 of the relief valve 13e. The

  As shown in FIG. 9, the relief water W discharged from the relief valve 13e directly hits the protruding portion 41b. Thereby, the flow rate of the relief water W is suppressed, and the flow of the relief water W is dispersed (see FIGS. 7 to 9). At this time, the flow of the relief water W is disturbed, so that air is mixed into the relief water W, and the relief water W includes air bubbles. Then, as shown in FIGS. 7 and 8, the relief water W flows through the guide portion 41 to the right toward the cleaning portion 42, and flows into the recess 11 b 5.

  The relief water W that has flowed into the recess 11b5 is divided into a flow that is dammed to the first side wall 42a and a flow that is further to the right without being dammed to the first side wall 42a. The relief water W blocked by the first side wall 42a flows over the step 42a1 and is introduced into the first cleaning unit C1 (shown by a broken line), and wraps around the rear of the first side wall 42a. Then, it is divided into flows that flow to the right. The relief water W that has flowed further to the right from the first side wall 42a, flows from the first opening 42f to the first cleaning section C1, and flows further to the right from the rear of the fourth side wall 42d. Divided into flows.

  The relief water W introduced into the first cleaning part C1 from the first opening 42f merges with the relief water W introduced into the cleaning part 42 from the step part 42a1, and flows in the direction D1. Furthermore, the relief water W introduced into the first cleaning part C1 flows along the shape of the first tip part T1 by the side walls 42a, 42b and the first rectifying wall 42i. Thereby, the first tip portion T1 is washed with the relief water W. And the relief water W which wash | cleaned 1st front-end | tip part T1 is derived | led-out to the toilet bowl part 2b from the 1st through-hole 11b6. At this time, since the relief water W introduced into the first cleaning unit C1 is oriented in the direction D1, the relief water W led out from the first through hole 11b6 moves to the left as it goes from above to below. Is rectified in a direction D2 from the right to the right (see FIG. 3).

  Part of the relief water W that has flowed further to the right from the rear of the fourth side wall 42d, from the second opening 42g to the second cleaning unit C2, from left to right as it goes from the rear to the front. Introduced to head. The relief water W that has not been introduced from the second opening 42g into the second cleaning part C2 is rectified by the third rectifying wall 42k and introduced into the second cleaning part C2 through the third opening 42h. And the relief water W introduced from the 2nd opening part 42g and the relief water W introduced from the 3rd opening part 42h merge in the 2nd washing | cleaning part C2.

  As described above, the flow rate of the relief water W introduced from the third opening 42h to the second cleaning unit C2 is larger than the flow rate of the relief water W introduced from the second opening 42g to the second cleaning unit C2. The relief water W flowing through the second cleaning section C2 is directed in the direction introduced from the third opening 42h (the direction rectified by the third rectifying wall 42k), and moves to the right from the rear toward the front. Flows in the direction D3 from the left to the left. Furthermore, the relief water W flowing through the second cleaning section C2 flows along the shape of the second tip T2 by the second side wall 42b, the third side wall 42c, and the second rectifying wall 42j. As a result, the second tip portion T2 is washed with the relief water W.

  And the relief water W which wash | cleaned 2nd front-end | tip part T2 is derived | led-out from the 2nd through-hole 11b7 to the toilet bowl part 2b. At this time, since the relief water W introduced into the second cleaning section C2 is oriented in the direction D3, the relief water W led out from the second through-hole 11b7 moves to the right as it goes downward from above. Is rectified in a direction D4 from left to right (see FIG. 3). On the other hand, since the relief water W led out from the first through hole 11b6 is rectified in the direction D2, the relief water W led out from the second through hole 11b7 and the relief water W led out from the first through hole 11b6 Converge and converge. Furthermore, since the flow rate of the relief water W introduced into each of the cleaning units C1 and C2 is the same, the flow rate of the relief water W derived from each of the through holes 11b6 and 11b7 is also the same. Therefore, the relief water W led out and converged from the through holes 11b6 and 11b7 flows downward into the toilet bowl 2b.

  In this way, the relief water W is rectified so that the relief water W led out from the through holes 11b6 and 11b7 converges. As described above, the rectification of the relief water W is performed by the step portion 42a1, the third rectifying wall 42k, and the openings 42f, 42g, and 42h. The step portion 42a1, the third rectifying wall 42k, and the openings 42f, 42g, and 42h correspond to the rectifying portion of the present invention.

  When a predetermined time (for example, 6 seconds) has elapsed since the cleaning of the tip T of the nozzle device 16 by the nozzle cleaning unit 40 has started, the control device closes the second flow path L2 by the water stop electromagnetic valve 13d. To do. Thereby, the supply of the wash water to the second flow path L2 is stopped, and the pressure value of the wash water in the second flow path L2 becomes smaller than the predetermined pressure value, so that the relief water W is discharged by the relief valve 13e. Stop. Then, the cleaning of the tip portion T of the nozzle device 16 by the nozzle cleaning unit 40 is completed.

According to the present embodiment, the warm water cleaning toilet seat device 1 includes the nozzle device 16 having the nozzles 16b and 16c for cleaning the human body part by ejecting the cleaning water supplied from the water pipe 3, and the toilet bowl 2b. The seat 11 is attached to the seat-type toilet bowl 2 and holds the toilet seat 20. The casing 11 houses the nozzle device 16. The casing 11 is disposed between the water pipe 3 and the nozzle device 16. By discharging the supplied cleaning water, the relief valve 13e for adjusting the pressure of the cleaning water supplied to the nozzle device 16 and the cleaning valve formed on the bottom wall 11b1 of the second casing 11b and discharged by the relief valve 13e And a nozzle cleaning unit 40 that cleans the tip T of the nozzles 16b and 16c using relief water W that is water. The nozzle cleaning unit 40 cleans the relief water W with the cleaning unit 42 (cleaning units C1 and C2) that cleans the tip T by circulating the relief water W along the tip T of the nozzles 16b and 16c. And a guide portion 41 that guides the flow toward the portions C1 and C2. The cleaning part 42 introduces the relief water W flowing through the guide part 41 into the first cleaning part C1 from the left side of the tip part T, and the relief water W flowing through the guide part 41 from the right side of the tip part T. A second introduction part to be introduced into the second washing part C2 and a through hole that opens from the washing parts C1 and C2 toward the toilet bowl part 2b and leads to the toilet bowl part 2b the relief water W that has washed the tip T Holes 11b6 and 11b7.
According to this, the relief water W is introduced into the cleaning parts C1, C2 from the left side of the tip part T of the nozzles 16b, 16c and the right side of the tip part T, and circulates along the tip part T of the nozzles 16b, 16c. . Therefore, the entire tip portion T of the nozzles 16b and 16c can be reliably washed. Moreover, since the nozzle washing | cleaning part 40 is formed in the bottom part of the casing 11 without using members, such as a hose, the number of parts of the warm water washing toilet seat apparatus 1 does not increase. Therefore, the cleanliness of the nozzle device 16 can be improved at a lower cost compared to the conventional warm water cleaning toilet seat device.

Moreover, the guide part 41 is formed so that the relief water W may reach the first introduction part before the second introduction part, and the flow resistance of the first introduction part is larger than the flow resistance of the second introduction part. It is set to be.
According to this, when the relief valve 13e is disposed on the left side with respect to the cleaning parts C1 and C2 as in the present embodiment, the relief water W is supplied to the first introduction part by the guide part 41. Reach before the introduction. In this case, as described above, the flow rate of the relief water W introduced from the second introduction part is smaller than the flow rate of the relief water W introduced from the first introduction part, thereby sufficiently washing the second tip part T2. There are times when you can't. On the other hand, since the flow resistance of the first introduction part is set to be larger than the flow resistance of the second introduction part, the flow rate of the relief water W introduced from the second introduction part, The flow rate of the relief water W introduced from the introduction unit can be adjusted to approximately the same flow rate. Thereby, the whole front-end | tip part T can be wash | cleaned more reliably.

The cleaning parts C1 and C2 are formed by side walls 42a to 42e surrounding the front end parts T1 and T2, and the first introduction part 42f is a first opening 42f that opens toward the first cleaning part C1 on the side walls 42a to 42e. And the step part 42a1 which makes relief water W flow over toward the 1st washing | cleaning part C1 from the upper end of the 1st side wall 42a, and a 2nd introducing | transducing part is the 2nd washing | cleaning part C2 in the side walls 42a-42e. It is formed to have a second opening 42g and a third opening 42h that open toward the opening, and the sizes of the openings 42f to 42h and the stepped portion 42a1 are such that the flow resistance of the first introduction portion is that of the second introduction portion. It is set to be larger than the channel resistance.
According to this, by adjusting the height and width of the openings 42f to 42h and the stepped portion 42a1, the flow resistance of each introduction portion can be easily set.

Further, the cleaning parts C1, C2 are provided with a step part 42a1, a third rectifying wall 42k, and respective openings 42f, 42g, 42h that rectify the relief water W led out from the through holes 11b6, 11b7 so as to converge. Yes.
According to this, since the relief water W led out from the through holes 11b6 and 11b7 is rectified by the step portion 42a1, the third rectifying wall 42k and the openings 42f, 42g and 42h, the relief water W is led to the toilet bowl 2b downward without scattering. Therefore, it can suppress that the relief water W which wash | cleaned front-end | tip part T1, T2 adheres to the opening part periphery of the toilet bowl part 2b. Thereby, it can suppress that the toilet bowl part 2b becomes dirty.

Moreover, the guide part 41 is formed so that it may protrude upward from the bottom wall 11b1 of the 2nd casing 11b, and has the protrusion part 41b which the relief water W discharged | emitted from the relief valve 13e directly hits.
According to this, the relief water W discharged from the relief valve 13e directly hits the protruding portion 41b. Therefore, since the flow rate of the relief water W can be slowed down, the relief water W can be guided with a simple shape. For example, the height of the guide wall 41a can be reduced. Moreover, foam can be included in the relief water W when the relief water W directly hits the protrusion 41b. This foam allows more dirt attached to the tip portions T1 and T2 to be washed away.

  In addition, in embodiment mentioned above, although an example of the warm water washing toilet seat apparatus was shown, this invention is not limited to this, Another structure can also be employ | adopted. For example, the second introduction part is formed by the second opening part 42g and the third opening part 42h, but instead, the second introduction part may be formed only by the third opening part 42h. . Moreover, you may make it a 2nd introduction part have a dam part which makes the relief water W overflow. For example, the fifth side wall 42e may overflow the relief water W and introduce it into the second cleaning unit C2.

In the above-described embodiment, the first introduction portion is configured by the first opening portion 42f and the step portion 42a1, but instead, the first introduction portion is replaced by the first opening portion 42f and the step portion 42a1. You may make it form by one side.
In the above-described embodiment, the relief valve 13e is disposed on the left side of the nozzle device 16, but instead, the relief valve 13e may be disposed on the right side of the nozzle device 16. . In this case, the first introduction part is formed on the right side of the tip part T, and the second introduction part is formed on the left side of the tip part T.

  In the above-described embodiment, the nozzle device 16 is configured by two nozzles, the buttocks nozzle 16b and the bidet nozzle 16c. Instead, the nozzle device 16 is configured by a single nozzle. Also good. In this case, as shown in FIG. 10, the cleaning unit 42 is configured by one third cleaning unit C3. The third cleaning section C3 is formed by a side wall 142a corresponding to the first side wall 42a, a side wall 142c corresponding to the third side wall 42c, and a side wall 142d corresponding to the fourth side wall 42d. Further, a rectifying wall 142k corresponding to the rectifying wall 42k is provided. Further, an opening 142f corresponding to the first opening 42f is provided between the side wall 142a and the side wall 142d, and an opening 142h corresponding to the third opening 42h is provided between the side wall 142d and the side wall 142c. Is provided. Furthermore, in the through hole which leads out the relief water W discharged | emitted from the 3rd washing | cleaning part C3 to the toilet bowl part 2b, it is comprised by one through hole 11b8.

In the above-described embodiment, the number of the protruding portions 41b is one, but instead, a plurality of protruding portions 141b may be formed as shown in FIG. According to this, compared with the case where the protrusion part 41b is one, many foam can be included in the relief water W. FIG. Therefore, more dirt on the tip T can be washed away.
In the above-described embodiment, the tip portion T is cleaned when the nozzles 16b2 and 16c2 are located at the storage position P2. Instead, for example, the human body portion is cleaned. In some cases, the tip portion T may be cleaned even when the nozzles 16b2 and 16c2 are located at positions other than the storage position P2.
Further, the shape of the guide wall 41a, the shape and the number of the side walls 42a to 42e, etc. may be changed without departing from the gist of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Hot water washing toilet seat device, 2 ... Seat-type toilet (toilet bowl), 2b ... Toilet bowl part, 3 ... Water supply pipe (water source), 10 ... Main part, 11 ... Casing, 11b ... Second casing, 11b1 ... Bottom wall, 11b2 ... peripheral side wall, 11b3 ... toilet bowl facing wall, 11b4 ... connection wall, 11b5 ... recess, 11b6 ... first through hole (lead-out part), 11b7 ... second through hole (lead-out part), 13 ... water supply valve, 13e ... Relief valve, 14 ... warm water tank, 15 ... connection hose, 16 ... nozzle device, 16b ... buttocks nozzle (nozzle), 16c ... bidet nozzle (nozzle), 20 ... toilet seat, 40 ... nozzle cleaning part, 41 ... guide part, 41a ... Guide wall, 41b ... protruding part, 41c ... rectifying side wall, 42 ... cleaning part, 42a, 42b, 42c, 42d, 42e ... side wall, 42a1 ... step part (weir part, first introduction part, rectifying part), 42f ... first One opening (Opening portion, first introduction portion, rectification portion), 42g ... second opening portion (opening portion, second introduction portion, rectification portion), 42h ... third opening portion (opening portion, second introduction portion, rectification portion) 42i, 42j ... rectifying wall, 42k ... rectifying wall (rectifying part), C1 ... first cleaning part, C2 ... second cleaning part, T ... tip part (to-be-cleaned part), T1 ... first tip part, T2 ... Second tip, W ... relief water.

Claims (5)

A nozzle device having a nozzle for cleaning a local human body by ejecting cleaning water supplied from a water source;
A casing that is attached to a toilet bowl having a toilet bowl, holds a toilet seat, and houses the nozzle device;
A relief which is disposed between the water source and the nozzle device in the casing and adjusts the pressure of the cleaning water supplied to the nozzle device by discharging the cleaning water supplied from the water source. A valve,
A warm water cleaning toilet seat device comprising: a nozzle cleaning unit that is formed at the bottom of the casing and that uses the relief water that is the cleaning water discharged by the relief valve to clean the portion to be cleaned of the nozzle. And
The nozzle cleaning unit
A cleaning unit for cleaning the cleaned part by circulating the relief water along the cleaned part of the nozzle;
A guide unit that guides the relief water to flow toward the cleaning unit,
The cleaning unit
A first introduction part for introducing the relief water flowing through the guide part into the washing part from one side of the washing part;
A second introduction part for introducing the relief water flowing through the guide part into the cleaning part from the other side of the part to be cleaned;
A warm water washing toilet seat device comprising: a deriving part that opens from the washing part toward the toilet bowl part and leads the relief water that has washed the washed part to the toilet bowl part. The guide part is formed to allow the relief water to reach the first introduction part before the second introduction part,
The warm water washing toilet seat device according to claim 1, wherein the flow path resistance of the first introduction part is set to be larger than the flow path resistance of the second introduction part. The cleaning part is formed by a side wall surrounding the part to be cleaned,
The first introduction part and the second introduction part are an opening part that opens on the side wall toward the inside of the cleaning part, and a weir part that causes the relief water to overflow from the upper end of the side wall into the cleaning part. Formed to have at least one,
The warm water washing toilet seat device according to claim 2, wherein the size of the opening and the weir is set such that the flow resistance of the first introduction part is larger than the flow resistance of the second introduction part.   The warm water washing toilet seat device according to any one of claims 1 to 3, wherein the washing unit includes a rectifying unit that rectifies the relief water derived from the deriving unit to converge.   The said guide part is formed so that it may protrude upwards from the said bottom part of the said casing, and has the protrusion part which the relief water discharged | emitted from the said relief valve directly hits. The warm water washing toilet seat device according to item.

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