JP5327707B2 - Toilet flush water tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tank for toilet stool washing water capable of enlarging a space for washing hand to improve its ease-of-use and informing a user of danger of use of a pipe for supplying hand washing water as a handrail. <P>SOLUTION: This tank 14 for toilet stool washing water for storing water for washing a flush toilet stool 1 has a low tank body 14c, a lid 14e fixed detachably on the low tank body and forming a hand washing bowl 14d on its upper face, a ball tap 22 for supplying washing water into the low tank body, and the pipe 32 for supplying hand washing water branched from the ball tap and extended to position a discharge port 32a above the hand washing bowl 14d. The pipe for supplying hand washing water is not fixed on the upper face of the lid, but is fixed on a side face 14h of the lid. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

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, the hand-washing water supply pipe (spout) bypasses the outside from the side of the tank main body and is positioned above the lid, and the base part of the hand-washing water supply pipe (spout) is located at the tank main body. Since it is fixed to the side surface and can support a certain amount of load, there is a problem that the user may mistakenly assume that the spout can be used as a handrail.
Also, in the unlikely event that the user actually uses the spout as a handrail, the spout does not have sufficient strength to support the load of the user's body weight, so the base part of the spout and the side of the tank body As a result, an overload will act on the fixed part of the tank, and not only the spout but also the tank body may be damaged, which may cause water leakage.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and widens the hand-washing space, improves usability, and informs the danger of using the hand-washing water supply pipe as a handrail. It aims to provide a toilet flushing water tank that can be used.

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 fixed to the side surface of the lid without being fixed to the upper surface of the lid.
In the present invention configured as described above, since the hand-washing water supply pipe is fixed to the side surface without being fixed to the upper surface of the lid, the space for the hand-washing bowl formed on the upper surface of the lid can be increased. As a result, the user has a wider hand-washing space and can improve usability. In addition, since the hand-washing water supply pipe is fixed to the side of the lid, even if the user accidentally grips the hand-washing water supply pipe as a handrail, the lid moves and the hand-washing water supply pipe is used for the user. The danger of using as a handrail can be notified.

In the present invention, preferably, the lid is provided with a protruding portion provided on the side surface and projecting convexly on the outer side, and the hand-washing water supply pipe has a fitting portion that can be fitted to the protruding portion of the lid. .
In this invention comprised in this way, a hand-washing water supply pipe | tube can be fixed to the side surface of a lid | cover with a simple structure by fitting the fitting part of a hand-washing water supply pipe | tube to the projection part of a lid | cover. Furthermore, since the fixed part of the lid-side hand-washing water supply pipe is a protruding part that protrudes outward, it can be formed using two molds when forming the cover, so that instead of the protruding part Compared to the case of forming a lid provided with a recess formed in a concave shape, the number of molds used is small, and it can be formed more easily.

In the present invention, preferably, it further has a hose part for connecting the water supply means and the hand-washing water supply pipe, and the connection part between the water supply means and the hose part and the connection part of the hand-washing water supply pipe and the hose part are tanks. Located in the body.
In the present invention configured as above, both ends of the hose part, that is, the connection part between the water supply means and the hose part, and the connection part between the hand-washing water supply pipe and the hose part are all located in the tank body. Therefore, even if at least one of the connection part between the hose part and the water supply means or the connection part between the hose part and the hand-washing water supply pipe is disconnected, the hose part can be connected to the outside of the tank body. Can prevent water leakage.

In this invention, Preferably, the connection part of a hand-washing water supply pipe and a hose part is being fixed to the fixing member which comprises the fitting part of a hand-washing water supply pipe.
In the present invention configured as described above, the connection part between the hand-washing water supply pipe and the hose part is fixed to the fixing member constituting the fitting part of the hand-washing water supply pipe, so the connection between the hand-washing water supply pipe and the hose part Since the hose part is removed within the tank body before the part is detached from the fixing member of the hand-washing water supply pipe, water leakage from the hose part to the outside of the tank body can be prevented.

In this invention, Preferably, the hand-washing water supply pipe is being fixed to the side surface of the said lid so that rotation within the range of a predetermined rotation angle around the center axis line of the lower end part is possible.
In the present invention configured as described above, even if the user accidentally grips the hand-washing water supply pipe as a handrail, the hand-washing water supply pipe has a predetermined rotation angle around the central axis of its lower end. Since it can be rotated within the range, it is possible to inform the user of the danger of using the hand-washing water supply pipe as a handrail.

  According to the toilet flushing water tank of the present invention, it is possible to widen the hand washing space, improve the usability, and notify the danger of using the hand washing water supply pipe as a handrail.

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.
When the protrusion 14i is formed continuously along the bottom surface of the outer peripheral portion of the lid 14e or a plurality of protrusions 14i are formed at a predetermined interval, and the lid 14e is laterally displaced due to some impact, this protrusion 14i abuts against the upper end of the low tank body 14c, so that the lid 14e does not fall on the floor. Further, when the lid 14e is formed of earthenware, the lateral displacement can be prevented to some extent by the weight of the earthenware, so that the protrusion 14i is formed with a slight length along the bottom surface of the outer periphery of the lid 14e. It may be omitted or may be omitted.

  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.
If the user accidentally grasps the hand-washing water supply pipe 32 as a handrail, if the protrusion 14i is provided on the bottom surface of the outer periphery of the lid 14e, the protrusion 14i and the low tank main body are provided. The lid 14e is slightly lifted by using the abutting portion with which the upper end of 14c abuts as a fulcrum.
On the other hand, when the protrusion 14i is not provided on the back of the lid 14e, the lid 14e is displaced laterally with respect to the low tank main body 14c, so that the user immediately recognizes that the hand-washing water supply pipe 32 should not be held as a handrail. Can be done.

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.

  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, the hand-washing water supply pipe 32 is fixed to the side surface 14h on the rear side of the lid 14e without being fixed to the upper surface of the lid 14e. Since the space of the hand-washing bowl 14d formed on the upper surface of 14e can be widened, the hand-washing space is widened for the user, and usability can be improved. Further, since the hand-washing water supply pipe 32 is fixed to the side surface 14h on the rear side of the lid 14e, the lid 14e moves even if the user accidentally grips the hand-washing water supply pipe 32 as a handrail. The user can be informed of the danger of using the hand-washing water supply pipe 32 as a handrail.

Further, according to the toilet flushing water tank of the present embodiment, it is provided at the lower end portion of the hand-washing water supply pipe 32 with respect to the pair of protrusions 38a of the fixing structure 38 provided on the side surface 14h on the rear side of the lid 14e. By fitting the fitting portion constituted by both flange portions 38f, 38h and the bolt 38i of the fixing structure 38, the hand-washing water supply pipe 32 can be fixed to the rear side surface 14h of the lid 14e with a simple configuration. .
Furthermore, the fixed part of the rear side surface 14h of the lid 14e to which the hand-washing water supply pipe 32 is fixed is formed as a protruding portion 38a projecting outward, so that two molds can be formed when the lid 14e is molded as ceramic. Since it can be used, the projection 14a is used instead of the case where the lid 14e provided with a concave portion formed in a concave shape toward the inner side of the rear side surface 14h of the lid 14e is used. The number of molds is small, and the lid 14e can be formed more easily.

  Furthermore, according to the toilet flushing water tank of the present embodiment, both ends of the hose 36c, that is, the connection portion (joint 36b) between the water conduit 36 and the hose 36c, and the internal hose 32b and the hose 36c of the hand-washing water supply pipe 32 are provided. Since all the connecting parts (joints 36d) are located in the low tank main body 14c, the connecting part (joint 36b) between the water conduit 36 and the hose 36c or the internal hose 32b of the hand-washing water supply pipe 32 should be used. Even if at least one of the connection portions (joints 36d) between the hose 36c is disconnected, water leakage from the hose 36c to the outside of the low tank body 14c can be prevented.

  Further, according to the toilet flushing water tank of the present embodiment, the connecting portion (joint 36d) between the internal hose 32b and the hose 36c of the hand-washing water supply pipe 32 is provided at the lower end of the hand-washing water supply pipe 32. Since it is fixed to the fixing portion 38j of the fixing bracket 38g, the low tank main body 14c is connected before the connecting portion (joint 36d) between the internal hose 32b and the hose 36c of the hand-washing water supply pipe 32 is disengaged from the fixing portion 38j of the fixing bracket 38g. Since the hose 36c is disengaged, water leakage from the hose 36c to the outside of the low tank main body 14c can be prevented.

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 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 body 14d Hand wash bowl 14e Lid 14f Inner tank 14g Drain hole 14h Lid Rear side surface 14i Protruding portion 16 Drain valve 18 Overflow pipe 20 Water supply pipe 22 Ball tap 24 Float 25 Condensation prevention cover 25a Drainage channel 25b Funnel portion 25c Drainage hole 26 Operation lever 28a, 28b Ball chain 30 Arm 32 Hand wash water supply pipe 32a Water 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 conduit 36a Water conduit end portions 36b, 36d Joint 36c Hose 38 Fixing structure 38a Protrusion 38 b Upper protrusion 38c Lower protrusion 38d Upper shelf 38e Lower shelf 38f Flange 38g Fixing bracket 38h Flange 38i Bolt 38j Fixing part 40 Fixing member 40a Mounting hole 40b Rotating container 40c Projection 40d Fitting groove 40e Flange part 42a, 42b Seal member 44 Fitting groove 46 Concave groove 48 C ring

Claims (5)

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 toilet flushing water tank, wherein the hand-washing water supply pipe is fixed to a side surface of the lid without being fixed to an upper surface of the lid.   The said cover is provided with the projection part which was provided in the side surface, and protruded convexly on the outer side, and the said hand-washing water supply pipe is provided with the fitting part which can be fitted to the projection part of the said cover. Toilet bowl wash water tank.   Furthermore, it has a hose part for connecting the water supply means and the hand-washing water supply pipe, a connection part between the water supply means and the hose part, and a connection part between the hand-washing water supply pipe and the hose part are the tank. The toilet flushing water tank according to claim 1 or 2, which is located in the body.   The toilet flushing water tank according to claim 3, wherein a connecting portion between the hand-washing water supply pipe and the hose portion is fixed to a fixing member constituting a fitting part of the hand-washing water supply pipe.   The toilet bowl according to any one of claims 1 to 4, wherein the hand-washing water supply pipe is fixed to a side surface of the lid so as to be rotatable within a range of a predetermined rotation angle around a central axis of a lower end portion thereof. Wash water tank.

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