JP5327708B2 - Toilet flush water tank - Google Patents

Description

  The present invention relates to a toilet flushing water tank, and more particularly, to a toilet flushing water tank for storing flushing water for washing flush toilets.

2. Description of the Related Art Conventionally, in a toilet flushing water tank that collects flush water for washing a flush toilet bowl, a hand-washing bowl is formed on the upper surface of a lid fixed on the tank body. In recent years, there has been a demand for how to widen the space for the hand-washing bowl so that the user can widen the hand-washing space and improve usability.
For example, in the conventional toilet flushing water tank described in Patent Document 1, hand washing water pipes (spouts) are not arranged on the top surface of the lid on the tank body, but are arranged on the side surface of the tank body. The idea is to make the bowl space wider.

Japanese Utility Model Publication No. 50-96347

  However, in the conventional toilet flushing water tank described above, since the root portion of the spout disposed on the side surface of the tank body is not disposed on the top surface of the lid, for example, condensation, cleaning of the spout water, or hand-washing bowl When water is transmitted from the outer surface of the spout due to the water returned from the water, there is a problem that these waters travel along the outer surface of the spout and fall onto the floor surface and get wet.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and by preventing the water traveling along the outer surface of the hand-washing water supply pipe from falling to the floor surface, An object of the present invention is to provide a toilet flushing water tank that can prevent the floor surface from getting wet with dropped water.

In order to achieve the above object, the present invention provides a toilet flushing water tank for storing flush water for washing a flush toilet, which is detachably fixed on the tank body and hand-washed on the upper surface thereof. A lid that forms a bowl, water supply means for supplying cleaning water to the tank body, and a hand-washing water supply pipe that branches from the water supply means and extends so as to position a water outlet above the hand-washing bowl, The hand-washing water supply pipe is disposed around the hand-washing basin from the side of the tank body or the lid, and includes a fall prevention means for preventing the water traveling along the outer surface of the hand-washing water supply pipe from falling onto the floor surface. It is characterized by having.
In the present invention configured as described above, even if water transfer occurs on the outer surface of the hand-washing water pipe due to, for example, condensation, cleaning of the hand-washing water pipe, or return water from the hand-washing bowl, Since the fall prevention means for preventing the water traveling on the outer surface from falling onto the floor surface is provided, it is possible to prevent the floor surface from getting wet with the water dropped from the outer surface of the hand-washing water supply pipe.

In the present invention, preferably, the fall prevention means is provided between the lid and the tank main body, and includes a drainage channel for draining the water transmitted through the outer surface of the hand-wash water supply pipe into the tank main body.
In the present invention configured as described above, the water that travels on the outer surface of the hand-washing water supply pipe can be drained into the tank body by the drainage channel of the fall prevention means, so that the floor surface of the water that travels on the outer surface of the hand-washing water supply pipe Can be reliably prevented, and the floor surface can be prevented from getting wet with water dropped from the outer surface of the hand-washing water supply pipe. Furthermore, since the drainage channel of the fall prevention means is disposed between the lid and the tank body, a hand washing space for the hand washing bowl can be secured, and the convenience and design of the hand washing bowl can be improved.

In the present invention, preferably, there is further provided a dew condensation prevention cover that is disposed between the lid and the tank main body and covers the dew condensation on the internal member in the tank main body. A drainage channel that receives drainage from the bowl and drains it to a predetermined location other than the internal member in the tank body is formed, and the drainage channel of the fall prevention means is arranged to be directed to the drainage channel of the dew condensation prevention cover.
In the present invention configured as described above, even if chemicals such as strongly acidic detergents are contained in the drainage from the hand-washing basin or the drainage channel of the fall prevention means, these wastewaters are separated from the lid and tank. Since the water is drained to a predetermined location other than the internal member in the tank main body through the drainage passage of the dew condensation prevention cover disposed between the main body and the main body, the internal member in the tank main body can be protected from corrosion by chemicals.

In the present invention, preferably, the fall prevention means is provided at a lower end portion of the hand-washing water supply pipe, and the hand-washing water supply pipe rises a predetermined length from the lower end portion to a predetermined length, and then has a water outlet above the hand-washing bowl. Extends to position.
In the present invention configured as described above, since the fall prevention means is provided at the lower end of the hand wash water supply pipe, for example, compared to a case where the fall prevention means is provided in the middle of the hand wash water supply pipe, the hand wash water supply pipe As a measure for water transmission, there is no need to provide a seal member between the fall prevention means and the hand-washing water supply pipe, or to perform special fall prevention measures on the hand-washing water supply pipe side below the fall prevention means. As a result, water transfer can be reliably prevented with a simpler structure, and the floor surface can be prevented from getting wet with water dropped from the outer surface of the hand-washing water supply pipe.

In the present invention, preferably, the fall prevention means is configured such that the outer shell thereof is located outside the outer shell of the hand-washing water supply pipe at the portion where the fall prevention means is provided.
In the present invention configured as described above, the outer shell of the fall prevention means is located outside the outer shell of the hand-washing water supply pipe, so that even if the water falls on the outer surface of the hand-washing water supply pipe, This fallen water can be received within the outer area of the fall prevention means, and the floor can be prevented from getting wet.

In the present invention, the fall prevention means is preferably provided separately from the hand-washing water supply pipe.
In the present invention configured as described above, since the fall prevention means is provided separately from the hand-washing water supply pipe, even when dust or dirt accumulates in the fall prevention means, the fall prevention means can be easily removed and cleaned. be able to. Further, even if some trouble occurs in the fall prevention means, only this fall prevention means can be easily replaced, and maintenance is easy.

  According to the toilet flushing water tank of the present invention, it is possible to prevent the floor surface from getting wet with the water dropped from the outer surface of the hand-washing water supply pipe by preventing the water traveling along the outer surface of the hand-washing water supply pipe from falling to the floor surface. be able to.

It is sectional drawing of the flush toilet provided with the toilet bowl washing water tank by 1st Embodiment of this invention. It is front sectional drawing which shows the inside of the toilet bowl washing water tank by 1st Embodiment of this invention. It is a top view of the toilet bowl washing water tank by a 1st embodiment of the present invention. FIG. 4 is a plan view of a part of the lid cut out so that a dew condensation prevention cover can be seen in the toilet flushing water tank according to the first embodiment of the present invention shown in FIG. 3. It is the perspective view which looked at the dew condensation prevention cover of the toilet bowl washing water tank by a 1st embodiment of the present invention from the slanting upper part. It is the expansion perspective view which looked at the side part of the back side of the lid | cover with which the hand-washing water supply pipe | tube of the toilet bowl washing water tank by 1st Embodiment of this invention was fixed from diagonally upward. It is the expansion perspective view which looked at the side part of the back side of the lid to which the hand-washing water supply pipe of the toilet bowl washing water tank by a 1st embodiment of the present invention is fixed from the slanting upper part. It is the expansion perspective view which looked at the state which removed the water fall prevention cover in the side part of the back side of the lid to which the hand-washing water supply pipe of the toilet bowl washing water tank by a 1st embodiment of the present invention was fixed. It is the expansion perspective view which looked at the inner part of the water fall prevention cover of the toilet bowl washing water tank by 1st Embodiment of this invention from diagonally upward. It is a disassembled perspective view which shows the hand-washing water supply pipe | tube of the toilet bowl washing water tank by 2nd Embodiment of this invention. It is the expansion perspective view which expanded the lower end part of the hand-washing water supply pipe | tube of the toilet bowl washing water tank by 2nd Embodiment of this invention shown in FIG. 10, and was seen from diagonally upward. It is the expansion perspective view which expanded the lower end part of the hand-washing water supply pipe of the toilet bowl washing water tank by 2nd Embodiment of this invention shown in FIG. 10, and was seen from diagonally downward.

Hereinafter, a toilet flushing water tank according to a first embodiment of the present invention will be described with reference to the accompanying drawings.
First, FIG. 1 is a sectional view of a flush toilet equipped with a toilet flush water tank according to the present embodiment. As shown in FIG. 1, reference numeral 1 denotes a flush toilet. A bowl portion 2 is formed on the front side of the upper part of the flush toilet 1, a water guide channel 4 is formed on the rear side, and a lower side of the water guide channel 4. Are formed with drain trap lines 6 communicating with the bowl portion 2.

  An overhang-shaped rim 8 is formed on the upper edge of the bowl portion 2 of the flush toilet 1, and one or two rim spouts 10 through which flush water is supplied from the water conduit 4 are formed on the rim 8. The washing water descends while swirling so that the bowl part 2 can be washed. Further, a jet spout 12 to which wash water is supplied from the water conduit 4 is formed at the center lower portion of the bowl portion 2, and the wash water is spouted from the jet spout 12 toward the drain trap pipe 6, and the siphon Is to be generated in a short time.

  Above the water conduit 4 of the flush toilet 1, a so-called row tank 14 corresponding to the toilet flushing water tank of the present embodiment for collecting flush water for washing the flush toilet 1 is provided. A communication port 14 b communicating with the water conduit 4 of the flush toilet 1 is formed on the bottom surface 14 a of the low tank 14.

Next, the details of the toilet flushing water tank (low tank) of this embodiment will be described with reference to FIGS. Here, FIG. 2 is a front sectional view showing the inside of the toilet flushing water tank (low tank) of the present embodiment, and FIG. 3 is a plan view of the toilet flushing water tank (low tank) of the present embodiment.
As shown in FIG. 2, the row tank 14 includes a row tank main body 14c made of pottery that forms an outer frame of the row tank 14, and a pottery that is detachably fixed on the row tank main body 14c and forms a hand-washing bowl 14d on the upper surface thereof. And a lid 14e.

  The low tank main body 14c includes an inner tank 14f in which washing water is stored, and the inner tank 14f is provided with a drain valve 16, an overflow pipe 18, a water supply pipe 20, a ball tap 22, and a float 24. Yes. Further, a dew condensation prevention cover 25, which will be described in detail later, is arranged on the upper surface of the inner tank 14f.

  First, the drain valve 16 includes a valve body 16a for large washing and a valve body 16b for small washing, and both valve bodies 16a and 16b are provided in the communication port 14b portion of the bottom surface 14a of the low tank 14. Further, the valve bodies 16a and 16b are respectively connected to ball chains 28a and 28b connected to the operation lever 26. By operating the operation lever 26 to switch between large washing and small washing, The opening / closing operation of the valve body 16a or the small cleaning valve body 16b is performed. The drain valve 16 stores the wash water in the inner tank 14f of the low tank main body 14c by the closing operation, and passes the wash water in the inner tank 14f of the low tank main body 14c through the water conduit 4 of the flush toilet 1 by the opening operation. Thus, the rim water spouting port 10 and the jet water spouting port 12 are guided.

  Next, the overflow pipe 18 is provided such that an opening 18 a is formed at the upper end thereof and the lower end thereof communicates with the valve seat 16 c of the drain valve 16. Even if the water level of the washing water rises by this overflow pipe 18, the washing water overflows from the opening 18 a, and further passes through the valve seat 16 a of the drain valve 16 and further passes through the water conduit 4 of the flush toilet 1. After that, the rim water spouting port 10 and the jet water spouting port 12 are discharged into the bowl portion 2.

Next, the water supply pipe 20 is attached to the bottom surface 14a of the low tank 14 and is connected to a water supply source (not shown) such as an external water supply so as to supply cleaning water into the inner tank 14f of the low tank main body 14c. ing.
A ball tap 22 is provided at the tip of the water supply pipe 20 as water supply means for supplying cleaning water into the inner tank 14f of the low tank main body 14c. An arm 30 is attached to the ball tap 22, and a float 24 is attached to the right end of the arm 30. As the float 24 moves up and down as the level of the cleaning water in the inner tank 14f changes, a water supply valve (not shown) in the ball tap 22 opens and closes, and the cleaning water from the water supply pipe 20 into the inner tank 14f is opened. The water discharge and the water stop can be switched.

Next, details of the dew condensation prevention cover 25 will be described with reference to FIGS. Here, FIG. 4 is a plan view in which a part of the lid is cut off so that the dew condensation prevention cover can be seen in the toilet flushing water tank according to the present embodiment shown in FIG. FIG. 5 is a perspective view of the dew condensation prevention cover of the toilet flushing water tank according to the present embodiment as viewed obliquely from above.
As shown in FIGS. 2 to 5, the dew condensation prevention cover 25 drops on the inner surface of the lid 14 e located above the dew condensation cover 25, so that the drain valve 16, the overflow pipe 18, This prevents the water supply pipe 20, the ball tap 22, and the float 24 from getting wet with internal devices and internal members.

Further, the upper surface of the dew condensation prevention cover 25 is recessed downward to form a smooth concave curved drainage channel 25a.
The drainage channel 25a includes a funnel portion 25c at a lower position facing the drainage hole 14g of the hand-washing basin 14d.
The funnel portion 25c is narrowed toward a drain hole 25c formed at the lower end thereof, and the drain hole 25c is open downward, but the drain valve 16 inside the inner tank 14f is overflowed. The pipe 18, the water supply pipe 20, the ball tap 22, and the float 24 are positioned so as not to face internal devices and internal members.

  Further, the drainage channel 25a is gently inclined downward from the outer edge toward the funnel portion 25b, and the dew condensation adhering to the inner surface of the lid 14e falls on the upper surface (drainage channel 25a) of the condensation prevention cover 25. Then, after flowing toward the funnel portion 25b, internal devices such as the drain valve 16 in the inner tank 14f, the overflow pipe 18, the water supply pipe 20, the ball tap 22 and the float 24 from the drain hole 25c of the funnel section 25b The water is discharged to a predetermined location other than the internal member.

Further, in FIG. 4, in order to clarify the mutual positional relationship between the drain hole 14g of the hand wash bowl 14d and the funnel portion 25b of the drain path 25a of the dew condensation prevention cover 25, the drain hole 14g of the hand wash bowl 14d is indicated by a broken line. Show.
As shown in FIGS. 3 and 4, in the funnel portion 25 b of the drainage channel 25 a of the dew condensation prevention cover 25, the water outlet of the hand-washing water supply pipe 32 (details will be described later) fixed to the rear side surface 14 h of the lid 14 e. Water discharged from 32a to the hand basin 14d and drained from the drain hole 14g of the hand basin 14d flows into the funnel 25b, the drain valve 16, the overflow pipe 18, the water supply pipe 20, the ball tap 22 in the inner tank 14f, and The water is discharged to a predetermined location other than the internal devices and internal members such as the float 24.

  Further, the drainage channel 25a of the dew condensation prevention cover 25 is a drainage channel of a water fall prevention cover 34 (details will be described later) which is a fall prevention means for preventing the water traveling along the outer surface of the hand-washing water supply pipe 32 from dropping onto the floor surface. 34 a is arranged facing toward the drainage channel 25 a of the dew condensation prevention cover 25. The water transmitted through the outer surface of the hand-washing water supply pipe 32 is directed to the drainage path 25a of the dew condensation prevention cover 25 through the drainage path 34a of the water fall prevention cover 34, and from the drainage hole 25c of the funnel portion 25b into the inner tank 14f. The drainage valve 16, the overflow pipe 18, the water supply pipe 20, the ball tap 22, the float 24, and the like are directed to a predetermined location other than internal devices and internal members and drained.

  The ball tap 22 which is a water supply means for supplying cleaning water into the inner tank 14 f of the low tank main body 14 c is provided with a water guide pipe 36 which branches the water supply to the hand-washing water supply pipe 32 separately from the water supply pipe 20. One end portion 36a of the water conduit 36 is disposed on the rear side of the funnel portion 25b of the dew condensation prevention cover 25 (see FIG. 4).

Further, a plug-in joint 36b is inserted into and connected to one end 36a of the water conduit 36, and a hose 36c is connected to the joint 36b. The hose 36c is connected to a joint 36d connected to the internal hose 32b of the hand-washing water supply pipe 32.
That is, the joint 36b is a connection part between the water conduit 36 and the hose 36c, and the joint 36d is a connection part between the hose 36c and the internal hose 32b of the hand-washing water supply pipe 32.
Here, both ends (connecting portions) of the hose 36c to which the joints 36b and 36d are connected are located inside the low tank main body 14c, and by any chance, between the hose 36c and the joints 36b and 36d at both ends thereof. Even if at least one of the connecting portions is disconnected, water leakage from the hose 36c to the outside of the low tank main body 14c can be prevented.

Next, the details of the hand-washing water supply pipe 32 will be described with reference to FIGS.
FIG. 6 is an enlarged perspective view of a side portion on the rear side of the lid to which the hand-washing water supply pipe of the toilet flushing water tank according to the present embodiment is fixed, and FIG. 7 is a perspective view of the toilet flushing water tank according to the present embodiment. FIG. 8 is an enlarged perspective view of a side portion on the rear side of the lid to which the hand-washing water supply pipe is fixed viewed obliquely from above, and FIG. 8 is a rear side view of the lid on which the hand-washing water supply pipe of the toilet flushing water tank according to this embodiment is fixed It is the expansion perspective view which looked at the state which removed the water fall prevention cover in the side part from diagonally upward. FIG. 9 is an enlarged perspective view of the inner part of the water drop prevention cover of the toilet flushing water tank according to the present embodiment as viewed obliquely from above.

As shown in FIGS. 1 to 9, the hand-washing water supply pipe 32 is fixed to the side surface 14h on the rear side of the lid 14e by a fixing structure 38 provided on each of the lower end portion and the side surface 14h on the rear side of the lid 14e. ing.
First, the fixing structure 38 provided on the rear side surface 14h of the lid 14e includes a pair of protrusions 38a projecting outward from the rear side surface 14h of the lid 14e (see FIGS. 7 and 8). The pair of protrusions 38a sandwich the lower end portion of the hand-washing water supply pipe 32 from the lateral direction.
In addition, each tip of the pair of protrusions 38a forms an upper protrusion 38b that protrudes upward and a lower protrusion 38c that protrudes downward (see FIGS. 7 and 8), and both protrusions 38a. A pair of substantially flat upper shelf 38d and lower shelf 38e are formed between the base end portion and the distal end portion (see FIG. 7).

On the other hand, the fixing structure 38 provided at the lower end portion of the hand-washing water supply pipe 32 includes a pair of flange portions 38f extending in a substantially horizontal direction from both sides of the lower end portion of the hand-washing water supply pipe 32. It arrange | positions on the upper side shelf part 38d in a pair of protrusion part 38a of 14e.
The fixing structure 38 provided at the lower end portion of the hand-washing water supply pipe 32 is a fixing member that sandwiches and fixes the pair of protrusions 38a of the lid 14e from below together with the pair of flange portions 38f at the lower end portion of the hand-washing water supply pipe 32. A fixed metal fitting 38g is provided.

  The fixing bracket 38g includes a pair of flange portions 38h arranged on the lower shelf portion 38e of the pair of protrusions 38a so as to correspond to the pair of flange portions 38f at the lower end portion of the hand-washing water supply pipe 32. The two flange portions 38f and 38h constitute a fitting portion that can be fitted to the pair of protrusions 38a of the lid 14e by bolts 38i. That is, when the bolt 38i is tightened in a state where the pair of protrusions 38a of the lid 14e is sandwiched and fitted between the flange portions 38f and 38h from above and below, the lower end portion of the hand-washing water supply pipe 32 is the side surface on the rear side of the lid 14e. 14h is fixed.

  Further, as shown in FIG. 8, the lower end portion of the fixing fitting 38g extends obliquely downward toward the inside of the raw tank main body 14c, and a joint 36d connected to the internal hose 32b of the hand-washing water supply pipe 32 is fixed. The fixed portion 38j is provided.

Next, details of the water drop prevention cover 34 will be described with reference to FIGS. 3, 4, 6, and 9.
The water drop prevention cover 34 is detachably provided at the lower end of the hand wash water supply pipe 32 so as to cover the outside of the fixing structure 38 at the lower end of the hand wash water supply pipe 32. A drainage channel 34a that is inclined obliquely downward is provided.
Further, the drainage channel 34 a of the water drop prevention cover 34 is disposed between the lid 14 e and the condensation prevention cover 25 of the raw tank main body 14 c and is directed to the drainage channel 25 a of the condensation prevention cover 25.

  The water drop prevention cover 34 includes a notch 34b formed in a substantially U shape on the upper surface thereof, and between the notch 34b and the outer surface of the lower end of the hand-washing water supply pipe 32 facing the notch 34b, Even if water is generated on the outer surface of the hand-washing water supply pipe 14 due to dew condensation, water cleaning of the hand-washing water supply pipe 32, or water returned from the hand-washing bowl 14d, this gap is formed. The water passes along the outer surface of the hand-washing water supply pipe 14, passes through the gap with the notch 34b, falls onto the drainage channel 34a, and is drained from the drainage channel 34a to the drainage channel 25a of the dew condensation prevention cover 25. It has become.

  As shown in FIGS. 4 and 9, the outer shell 34 c that forms the drainage channel 34 a of the water drop prevention cover 34 located below the lower end of the hand-washing water supply pipe 32 is formed on the hand-washing water supply pipe 32 as viewed from above. Even if the lower end of the hand-washing water supply pipe 32 falls in the middle of the water being transferred, it falls within the range of the outer shell 34c of the drainage channel 34a. It can be received at.

Next, the hand-washing water supply pipe 32 extends upright from a start end 32c sandwiched from both sides by a pair of protrusions 38a of the lid 14e to an intermediate part 32d exceeding the height of the hand-washing bowl 14d. .
Further, the hand-washing water supply pipe 32 extends from the intermediate portion 32d to the water discharge port 32a which is the terminal portion thereof, and the center of the hand wash basin 14d in which the drain hole 14g is formed so that the water discharge port 32a is positioned above the hand washing basin 14d It extends in the direction and is arranged around the hand-washing bowl 14d from the side surface 14h of the low tank body 14c so that the entire upper surface of the lid 14e can be used as the hand-washing bowl 14d.

Furthermore, as shown in FIG. 3, the outer periphery of the hand-washing bowl 14d has an elliptical shape. Assuming that the dimension lines defining the maximum width dimension l and the maximum depth dimension d of the oval hand-washing bowl 14d are L1 and L2, respectively, the part from the start end 32c of the hand-washing water supply pipe 32 to the intermediate part 32d and the water fall prevention cover 34 Is disposed in a region A surrounded by the dimension lines L1 and L2 and the side surface 14h of the low tank main body 14c.
That is, the portion from the start end portion 32 c to the intermediate portion 32 d of the hand-washing water supply pipe 32 stands up from the low tank main body 14 c within the maximum range (in the region A) of the lateral width dimension and the depth dimension of the hand-washing bowl 14.
Moreover, since the fall prevention cover 34 is provided in the area A behind the low tank main body 14c, even if the user who uses the toilet does not see the fall prevention cover 34 and installs the fall prevention cover 34, The aesthetic appearance of the toilet seen from the front is not impaired.

  As shown in FIGS. 2 to 4, the hand-washing water supply pipe 32 is disposed on the left side when viewed from the front and the top in the side surface 14 h on the rear side of the lid 14 e, whereas the operation lever 26 is a low tank. The main body 14c is disposed on the right side when viewed from the front and top views. That is, the hand-washing water supply pipe 32 and the operation lever 26 are disposed in a paired direction, and are positioned so that the positions of both the hand-washing water supply pipe 32 and the operation lever 26 do not interfere with each other.

According to the toilet flushing water tank of the first embodiment of the present invention described above, water is transferred to the outer surface of the hand washing water supply pipe 32 by, for example, condensation, cleaning of the hand washing water supply pipe 32, or returning water from the hand washing bowl 14d. Even if this occurs, the water transmitted through the outer surface of the hand-washing water supply pipe 32 falls into the drainage channel 34a of the water drop prevention cover 34. The drainage of this drainage channel 34a is directed to the drainage channel 25a of the condensation prevention cover 25, passes through the funnel portion 25b of the condensation prevention cover 25, and from the drainage hole 25c to the drainage valve 16 and the overflow pipe 18 in the inner tank 14f. The water is discharged to a predetermined location other than the internal devices and internal members such as the water supply pipe 20, the ball tap 22, and the float 24.
In this way, the water traveling on the outer surface of the hand-washing water supply pipe 32 can be drained to a predetermined location in the inner tank 14f of the low tank main body 14c, so that the floor surface gets wet with water dropped from the outer surface of the hand-washing water supply pipe 32. It can be prevented in advance.

Further, according to the toilet flushing water tank of the present embodiment, the water transmitted through the outer surface of the hand-washing water supply pipe 32 passes from the drainage path 34a of the water drop prevention cover 34 to the drainage path 25a of the dew condensation prevention cover 25 and the funnel portion 25b. The water is drained into the inner tank 14f of 14c. Therefore, for example, by connecting the drainage channel 34a of the water fall prevention cover 34 directly to the toilet body such as a toilet bowl, the transmitted water from the hand-washing water supply pipe 32 is drained directly into the toilet body. In addition, the drainage channel 34a of the water drop prevention cover 34 is directly connected to the drainage pipe for the washing water that connects the toilet bowl body and the low tank body, and the water supplied from the hand-washing water supply pipe 32 is supplied into the washing water pipe. Compared to the case of directly draining form, the floor surface of the water transmitted through the outer surface of the hand-washing water supply pipe 32 without affecting the washing performance of the toilet body and the drainage performance of the washing water drain pipe Can be reliably prevented from falling.
Further, as compared with the embodiment in which the drainage channel 34a of the water drop prevention cover 34 is directly connected to the toilet body or the drainage pipe for washing water, the drainage channel 34a of the water fall prevention cover 34 is condensed as in this embodiment. In the configuration in which the prevention cover 25 is directed to the drainage channel 25a, the drainage channel 34a can be formed with a simple structure, and both design and manufacture can be simplified. In addition, since it is not necessary to provide the outlet of the drainage channel 34a of the water drop prevention cover 34 or the like in the toilet body or the flush water drain pipe, there is no need to newly change the toilet body or the flush water drain pipe. It can also be applied to conventional products.

  Further, according to the toilet flushing water tank of the present embodiment, the drainage channel 34a of the water drop prevention cover 34 is disposed between the lid 14e and the dew condensation prevention cover 25 of the low tank main body 14c. Space can be secured and the convenience and design of the hand-washing bowl 14d can be improved.

Furthermore, according to the toilet flushing water tank of the present embodiment, the drainage from the drain hole 14g of the hand-washing basin 14d and the drainage from the drainage channel 34a of the water drop prevention cover 34 contain chemicals such as a strongly acidic detergent. However, the drainage of the drainage valve 16 in the inner tank 14f, the overflow pipe from the drainage path 25a of the dew condensation prevention cover 25 disposed between the lid 14e and the low tank body 14c through the drainage hole 25c of the funnel 25b. 18, since the water is drained to a predetermined location other than internal devices and internal members such as the water supply pipe 20, the ball tap 22, and the float 24, the internal devices and internal members in the inner tank 14f can be protected from corrosion by chemicals. .
Further, since the water drop prevention cover 34 and the condensation prevention cover 25 are made of a chemical-resistant material, even if the hand-washing water supply pipe 32 and the lid 14e are washed with a detergent and the drainage contains chemicals, etc. There is nothing to do.

  Furthermore, according to the toilet flushing water tank of the present embodiment, the water fall prevention cover 34 that is a fall prevention means for preventing the water traveling on the outer surface of the hand washing water supply pipe 32 from falling to the floor surface is provided at the lower end of the hand washing water supply pipe 32. Therefore, for example, as compared with the case where a fall prevention means is provided in the middle of the hand-washing water supply pipe 32, as a countermeasure for water transmission of the hand-washing water supply pipe 32, the fall prevention means and the hand-washing water supply pipe 32 are provided. There is no need to provide a seal member or to take special measures to prevent dropping on the hand-washing water supply pipe 32 side in the lower part of the drop prevention means. As a result, water transmission can be reliably prevented with a simpler structure, and the floor surface can be prevented from getting wet with water dropped from the outer surface of the hand-washing water supply pipe 32.

  Further, according to the toilet flushing water tank of the present embodiment, since the outer shell 34c of the drainage channel 34a of the water fall prevention cover 34 is located outside the outer shell (outer surface) of the hand washing water feeding tube 32, the hand washing water feeding tube 32 is provided. Even if the water falls on the outer surface of the water, the dropped water can be received within the outer area 34c of the drainage channel 34a of the water fall prevention cover 34, thereby preventing the floor surface from getting wet. be able to.

  Further, according to the toilet flushing water tank of the present embodiment, the water fall prevention cover 34 is detachably provided at the lower end portion of the hand-washing water supply pipe 32, so that dust or dirt is contained inside the water fall prevention cover 34. Even when dust accumulates, the water fall prevention cover 34 can be easily removed and cleaned. Further, even when some trouble occurs in the water fall prevention cover 34, only the water fall prevention cover 34 can be easily replaced, and maintenance is easy.

Next, a toilet flushing water tank according to a second embodiment of the present invention will be described with reference to FIGS.
FIG. 10 is an exploded perspective view showing a hand-washing water supply pipe of a toilet flushing water tank according to a second embodiment of the present invention, and FIG. 11 shows a lower end portion of the hand-washing water supply pipe of a toilet flushing water tank according to a second embodiment of the present invention. FIG. 12 is an enlarged perspective view of the toilet wash water tank according to the second embodiment of the present invention. FIG. 12 is an enlarged perspective view of the lower end portion of the hand-washing water supply pipe according to the second embodiment of the present invention. . Here, in FIGS. 10-12, the same code | symbol is attached | subjected about the part same as the part of the toilet bowl washing water tank by 1st Embodiment of this invention, and those description is abbreviate | omitted.

  As shown in FIGS. 10 to 12, in the toilet flushing water tank according to the second embodiment of the present invention, the lower end portion of the hand-washing water supply pipe 32 is within the range of a predetermined rotation angle α around the central axis C thereof. The point which is fixed to the side surface 14h of the back side of the lid | cover 14e so that rotation is different from the toilet bowl washing water tank of 1st Embodiment.

Further, seal members 42a and 42b made of rubber packing or the like are provided on the upper and lower portions of the lower end portion of the hand-washing water supply pipe 32, respectively.
Further, a fitting groove 44 is formed at the middle of the lower end of the hand-washing water supply pipe 32, and a concave groove 46 is formed at the bottom of the hand-washing water supply pipe 32.

The fixing member 40 is formed with an attachment hole 40a that can be attached by inserting the lower end of the hand-washing water supply pipe 32. The bottom surface of the attachment hole 40a rotates around the central axis of the attachment hole 40a. A possible rotating container 40b is provided. The rotating container 40b can accommodate the lower part of the lower end portion of the hand-washing water supply pipe 32 provided with the seal member 42b.
Further, a protrusion 40c that can be fitted in the groove 46 at the bottom of the hand-washing water supply pipe 32 is provided at the bottom of the rotating container 40b. The lower portion of the hand-washing water supply pipe 32 is held by the rotating container 40b by fitting the concave groove 46 at the bottom of the hand-washing water supply pipe 32 and the protrusion 40c at the bottom of the rotating container 40b. It has come to be.

  A fitting groove 40 d into which the C ring 48 can be fitted is formed on the side surface of the fixing member 40. The fitting groove 40 d of the fixing member 40 faces the fitting groove 44 in the middle portion of the lower end portion of the hand-washing water supply pipe 32 in a state where the lower end portion of the hand-washing water supply pipe 32 is inserted into the insertion hole 40 a of the fixing member 40. After the lower part of the lower end portion of the hand-washing water supply pipe 32 is inserted into the rotating container 40b of the insertion hole 40a of the fixing member 40, the C-ring 48 is fitted into the fitting groove 40d, thereby hand washing. The lower end portion of the water supply pipe 32 is attached to the insertion hole 40a of the fixing member 40 without a gap by the sealing members 42a and 42b, and within a predetermined rotation angle α around the central axis C with respect to the fixing member 40. It can be rotated.

  Here, for a range of a predetermined rotation angle α in which the lower end portion of the hand-washing water supply pipe 32 rotates about the central axis C with respect to the fixing member 40, the water discharge port 32a of the hand-washing water supply pipe 32 is always on the upper surface of the hand-washing bowl 14d. It is preferable to set so that it is located in the range.

  Furthermore, the fixing member 40 is provided with a pair of flange portions 40e extending substantially horizontally from the side surface to both sides. About this flange part 40e, in a state where the pair of protrusions 38a of the lid 14e are sandwiched and fitted together with the pair of flange parts 38h of the fixing fitting 38g in the toilet flushing water tank of the first embodiment described above. By tightening the bolt 38i, the lower end portion of the hand-washing water supply pipe 32 is fixed to the side surface 14h on the rear side of the lid 14e so as to be rotatable around the central axis C within a predetermined rotation angle α. ing.

  When the lower end portion of the hand-washing water supply pipe 32 is fixed to the rear side surface 14h of the lid 14e, the lower end of the hand-washing water supply pipe 32 covers the outside of the fixing member 40 and the fixing bracket 38g. It is attached to the part.

  According to the toilet flushing water tank of the second embodiment of the present invention described above, even if the user accidentally grips the hand washing water supply pipe 32 as a handrail, the lower end portion of the hand washing water supply pipe 32 is a fixing member. 40 can be rotated around the central axis C within a range of a predetermined rotation angle α, the user can be informed of the danger of using the hand-washing water supply pipe 32 as a handrail.

  In the toilet bowl cleaning water tank according to the first and second embodiments of the present invention described above, the lower end of the hand-washing water supply pipe 32 is fixed to the side surface 14h on the rear side of the lid 14e, and the hand-washing bowl 14d. However, the present invention is not limited to such a configuration, and the lower end of the hand-washing water supply pipe 32 is fixed to the side surface of the low tank main body 14c so as to bypass the hand-washing bowl 14d. But you can.

  In the toilet flushing water tank according to the first embodiment and the second embodiment of the present invention described above, hand washing is an example of a fall prevention means for preventing the water traveling along the outer surface of the hand washing water supply pipe 32 from dropping onto the floor surface. Although the form which provided the drainage channel 34a of the water fall prevention cover 34 in the lower end part of the water supply pipe 32 was demonstrated, it is not limited to such a form, It can apply also to another form.

  For example, as another form, instead of the drainage channel 34a of the water drop prevention cover 34, a form such as a tub that catches the transmitted water on the outer surface of the hand-washing water supply pipe 32, or a material having water absorption properties such as a sponge is used. Also good.

  Further, regarding the arrangement of the drainage channel 34a of the water fall prevention cover 34, the drainage channel 34a is disposed between the lid 14e and the condensation prevention cover 25 of the low tank body 14c, and is directed to the drainage channel 25a of the condensation prevention cover 25. Although described, the drainage channel 25a of the dew condensation prevention cover 25 may be directed directly into the inner tank 14f. Alternatively, the drainage channel 34a of the water drop prevention cover 34 may be disposed in the vicinity of the intermediate portion 32d exceeding the height of the handwashing basin 14d of the handwashing water supply pipe 32 and the drainage channel 34a may be directed to the handwashing basin 14d.

  Furthermore, in the toilet bowl washing water tank according to the first and second embodiments of the present invention described above, as an example, the water drop prevention cover 34 is detachably provided at the lower end portion of the hand washing water supply pipe 32 to thereby provide hand washing water supply. Although the embodiment separated from the pipe 32 has been described, the present invention is not limited to such a form, and the water fall prevention cover 34 may be provided integrally with the hand-washing water supply pipe 32, or the drainage path of the water fall prevention cover 34 A drainage channel corresponding to 34a may be provided integrally with the pottery on the lid side.

  Further, in the toilet flushing water tank according to the first and second embodiments of the present invention described above, as an example, the hand-washing water supply pipe 32 and the operation lever 26 are disposed in a paired direction, thereby hand-washing. Although the embodiment has been described in which the positions of both the water supply pipe 32 and the operation lever 26 are positioned so as not to interfere with each other, the present invention is not limited to such a form, and the hand-washing water supply pipe 32 and the operation lever 26 are disposed in the same direction. It may be a different form. With such a configuration, it becomes difficult for the user to grip the hand-washing water supply pipe as a handrail while operating the operation lever, so that the possibility of using the hand-washing water supply pipe as a handrail can be reduced.

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Bowl part 4 Water conduit 6 Drain trap conduit 8 Rim 10 Rim spout 12 Jet spout 14 Low tank 14a Low tank bottom 14b Communication port 14c Low tank main body 14d Hand wash bowl 14e Lid 14f Inner tank 14g Drain hole 14h Back side 16 Drain valve 18 Overflow pipe 20 Water supply pipe 22 Ball tap 24 Float 25 Condensation prevention cover 25a Drainage path 25b Funnel 25c Drainage hole 26 Operation lever 28a, 28b Ball chain 30 Arm 32 Hand wash water supply pipe 32a Drainage outlet 32b Internal hose 32c Start end portion 32d Intermediate portion 34 Water fall prevention cover 34a Drainage channel 34b Notch portion 34c Outer shell 36 Water guide tube 36a End portion of water guide tube 36b, 36d Joint 36c Hose 38 Fixed structure 38a Projection portion 38b Upper protrusion 38c Lower protruding portion 38d Upper shelf portion 38e Lower shelf portion 38f Flange portion 38g Fixing bracket 38h Flange portion 38i Bolt 38j Fixing portion 40 Fixing member 40a Mounting hole 40b Rotating container 40c Protrusion 40d Fitting groove 40e Flange portion 42a, 42b Seal Member 44 Fitting groove 46 Concave groove 48 C ring

Claims (6)

A toilet flushing water tank for storing flush water for washing flush toilets,
The tank body,
A lid that is detachably fixed on the tank body and forms a hand-washing bowl on the upper surface;
Water supply means for supplying cleaning water to the tank body;
A hand wash water supply pipe branched from the water supply means and extending so as to position the water outlet above the hand wash bowl,
The hand-washing water supply pipe is disposed around the hand-washing basin from the side of the tank body or the lid, and includes a fall prevention means for preventing the water traveling along the outer surface of the hand-washing water supply pipe from falling onto the floor surface. A toilet flushing water tank.   2. The toilet flushing water according to claim 1, wherein the fall prevention means is provided between the lid and the tank main body, and includes a drainage channel for draining water transmitted through the outer surface of the hand-washing water supply pipe into the tank main body. tank.   In addition, the anti-condensation cover is disposed between the lid and the tank body and covers the inner body of the tank body to prevent condensation from falling. A drainage channel for receiving drainage and draining to a predetermined location other than the internal member in the tank body is formed, and the drainage channel of the fall prevention means is arranged to be directed to the drainage channel of the dew condensation prevention cover. Item 3. A toilet flushing water tank according to item 2.   The fall prevention means is provided at a lower end portion of the hand-washing water supply pipe, and the hand-washing water supply pipe rises a predetermined length from the lower end portion to a predetermined length, and then a water outlet is positioned above the hand-washing bowl. The toilet flushing water tank according to any one of claims 1 to 3, which extends.   5. The fall prevention means according to any one of claims 1 to 4, wherein the outer shell is configured to be located outside the outer shell of the hand-washing water supply pipe in a portion where the fall prevention device is provided. The toilet flush water tank described.   The toilet bowl washing water tank according to any one of claims 1 to 5, wherein the fall prevention means is provided separately from the hand-washing water supply pipe.

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