JP2010007451A - Water storage tank and flush toilet bowl equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water storage tank for a flush toilet bowl, which is connected with the flush toilet bowl with good workability. <P>SOLUTION: In the water storage tank (8) for the flush toilet bowl mounted on a flush toilet bowl body (2) and used by being connected with the flush toilet bowl body, the water storage tank (8) has: a tank body (14) having a tank bottom face (14a) having a tank drain port for allowing cleaning water to flow out provided to the flush toilet bowl body, and a tank side face (14b) extending upward from the tank bottom face: a tank fixing part (16) having a bulging part (16a) bulging outward more than an area where the closed curve (C) of the outer circumference of the tank bottom face is projected in a vertical direction; and a fixing means (10, 22b) arranged outside more than the area where the closed curve is projected in the vertical direction and fixing the bulging part to the flush toilet bowl body by operation from the flush toilet bowl body and the outside of the tank body so that the tank body is connected with the flush toilet bowl body through the tank fixing part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a water storage tank, and more particularly to a water storage tank for a flush toilet used in combination with a flush toilet body and a flush toilet equipped with the same.

  Japanese Utility Model Laid-Open No. 4-89168 (Patent Document 1) describes a flush water tank fixing structure of a toilet bowl. In this cleaning water tank fixing structure, an engaging portion to which a fixing bolt can be detachably attached is provided on the bottom surface of the cleaning water tank. With this structure, the fixing bolt is fixed so as to protrude downward from the bottom surface of the cleaning water tank. The washing water tank is fixed to the toilet bowl by inserting a fixing bolt protruding downward from the washing water tank into a mounting hole provided in the toilet bowl and screwing a nut into the fixing bolt.

  Japanese Utility Model Publication No. 2-34284 (Patent Document 2) describes a fixing structure of a toilet and a tank. In this fixing structure, a bolt is attached so as to protrude vertically upward from the toilet bowl, and this bolt extends through the hole formed in the bottom surface of the tank to the inside of the tank. Furthermore, the tank is fixed to the toilet bowl by screwing a nut into a bolt extending to the inside of the tank.

Japanese Utility Model Publication No. 4-89168 Japanese Utility Model Publication No. 2-334284

  However, in the fixing structure described in Japanese Utility Model Laid-Open No. 4-89168, it is necessary to screw a nut into a fixing bolt protruding downward from the washing water tank, so that workability when fixing is poor. There's a problem. That is, in a toilet having a structure in which the tip of the fixing bolt attached to the washing water tank protrudes into the toilet bowl, it is necessary to insert a finger into the toilet bowl and screw the nut into the fixing bolt. In general, an opening for inserting a finger into the toilet is provided on the back of the toilet so as not to stand out. For this reason, in order to remove the washing water tank fixed to the toilet bowl, the nut screwed to the fixing bolt cannot be removed unless the toilet bowl is moved once with the washing water tank to expose the opening on the back of the toilet bowl. .

  In addition, in a toilet with a structure in which the tip of the fixing bolt attached to the washing water tank protrudes outside the toilet, the fixing bolt and the nut can be screwed together without moving the toilet, so the workability is not so good. However, since the tip of the fixing bolt is exposed to the outside, there is a problem that the appearance of the toilet is impaired.

  On the other hand, in the fixing structure described in Japanese Utility Model Publication No. 2-34284, the nut can be screwed onto the bolt from above through the opening above the tank, so that the workability is good. However, since the bolt extends through the tank, it is necessary to ensure watertightness between the bolt and the tank. Therefore, there is a problem that water may leak due to poor construction or deterioration of a seal for ensuring water tightness.

  Accordingly, an object of the present invention is to provide a water storage tank for a flush toilet and a flush toilet equipped with the same, which can be coupled to the flush toilet body with good workability without fear of water leakage.

  In order to solve the above-described problems, the present invention is a water storage tank for a flush toilet that is placed on a flush toilet body and is used by being coupled to the flush toilet body. A tank body with a tank drain port through which washing water is allowed to flow out and a tank side surface extending upward from the tank bottom surface, and a closed curve on the outer periphery of the tank bottom surface projecting outward from the vertically projected area. The tank fixing part with a protruding part and the outside of the area where the closed curve is projected in the vertical direction are arranged, and the protruding part is attached to the flush toilet body by an operation from the outside of the flush toilet body and the tank body. Fixing means for fixing and coupling the tank main body to the flush toilet main body via the tank fixing portion.

  In the present invention configured as described above, the overhanging portion that protrudes outside the area where the closed curve of the outer periphery of the tank bottom surface is projected in the vertical direction is fixed outside the area where the closed curve is projected in the vertical direction. By means, it is fixed to the flush toilet body. The tank body is coupled to the flush toilet body via a tank fixing part.

  According to the present invention thus configured, the tank body is coupled to the flush toilet body by operating the fixing means from the outside of the flush toilet body and the tank body, so that the water storage tank can be washed with good workability. Can be connected to the toilet bowl body. In addition, since the overhanging portion that protrudes outward from the area in which the closed curve of the outer periphery of the tank bottom surface is projected in the vertical direction is coupled to the flush toilet main body by the fixing means, a through hole is formed in the tank main body to fix the water storage tank. It is not necessary to provide water and water leakage can be reliably prevented.

In the present invention, preferably, the tank body and the tank fixing portion are integrally formed.
According to the present invention configured as described above, since the tank body and the tank fixing portion are integrally formed, the number of parts can be reduced and the production cost can be suppressed.

In the present invention, preferably, the tank body and the tank fixing portion are formed separately.
According to the present invention configured as described above, since the tank body and the tank fixing part are formed separately, they can be formed of different materials, and materials suitable for the tank body and the tank fixing part, respectively. Can be selected.

In the present invention, the tank body is preferably made of resin, and the tank fixing portion is made of metal.
According to the present invention configured as described above, the tank body that comes into contact with the cleaning water is formed of resin, so that deterioration of the tank body such as corrosion can be prevented and a large force is applied when the water storage tank is fixed. By forming the tank fixing portion that acts on the metal, it is possible to prevent the tank fixing portion from being broken when the water storage tank is fixed.

  In the present invention, preferably, the tank body includes an integrally formed fixing portion fixing bolt extending downward from the bottom surface of the tank, and the fixing portion fixing bolt extends through the tank fixing portion, and the fixing portion The tank fixing portion is fixed to the tank body by screwing the connecting nut into the fixing bolt.

  According to the present invention thus configured, the tank main body and the tank fixing portion are fixed by the fixing portion fixing bolt formed integrally with the tank main body, so that the tank main body can be provided without providing a hole in the tank main body. And the tank fixing portion can be bolted, and water leakage from the tank body can be reliably prevented.

  In the present invention, preferably, two fixing portion fixing bolts are provided, and each fixing portion fixing bolt is disposed substantially on a diagonal line of a surface where the tank main body and the tank fixing portion are in contact with each other.

  According to the present invention configured as described above, each fixing portion fixing bolt is disposed almost diagonally to the surface where the tank main body and the tank fixing portion are in contact with each other, so that it resists an external force from the side surface of the tank main body. Thus, the tank body can be firmly fixed to the tank fixing portion.

In the present invention, preferably, the tank fixing portion includes a flexible portion that is elastically deformed so that the overhanging portion can move in the vertical direction.
According to the present invention configured as described above, since the tank fixing portion includes the flexible portion, even when an excessive force is applied to the overhang portion by the fixing means, the flexible portion is elastically deformed. As a result, the movement of the overhanging portion is allowed, and deformation of the entire tank fixing portion can be avoided. Thereby, it is possible to prevent the occurrence of problems due to the deformation of the entire tank fixing portion.

In the present invention, preferably, the tank body is configured to protrude above the fixing means.
According to the present invention configured as described above, since the tank body is configured to protrude above the fixing means, the internal volume of the tank body can be reduced while allowing the fixing means to be operated from the outside of the tank body. Can be bigger.

In the present invention, it is preferable that water supply means for supplying cleaning water is further provided, and a water supply means fixing portion for fixing the water supply means is provided on the overhang portion of the tank fixing portion.
According to the present invention configured as described above, since the water supply means can be fixed without providing a through hole or the like for attaching the water supply means to the tank body, the risk of water leakage due to the attachment of the water supply means is avoided. be able to. In addition, since the water supply means is attached to the tank fixing part, the water supply means can be removed together with the tank body, and interference between the water supply means and the tank main body during installation and removal, and troublesomeness to avoid interference can be avoided. It can be avoided.

In the present invention, preferably, it further comprises a water supply means fixing plate and a water supply means fixing means for fixing the water supply means to the water supply means fixing plate, and the water supply means supplies water via the water supply means fixing plate. It is fixed to the means fixing part.
According to the present invention configured as above, the water supply means is fixed to the water supply means fixing portion via the water supply means fixing plate, so that the water supply means can be easily fixed. Moreover, according to this invention comprised in this way, various water supply means can be attached to the same water supply means fixing | fixed part by replacing | exchanging the water supply means fixing plate.

In the present invention, preferably, the water supply means fixing means is a fixing band that has a predetermined width and fixes the water supply means to the water supply means fixing plate while suppressing the periphery of the water supply means.
According to the present invention configured as described above, since the water supply means is fixed by the fixing band, a general-purpose product can be used as the fixing band. Further, the fixing with the fixing band can improve the workability as compared with the case of using the water supply means fixing means that covers the water supply means from above.

In the present invention, preferably, it further has a fixing position adjusting means for adjusting a fixing position of the water supply means fixing plate with respect to the water supply means fixing portion.
According to the present invention configured as described above, the fixing position of the water supply means fixing plate is adjusted by the fixing position adjusting means, so that the shape error of the flush toilet body and the like is absorbed, and the water supply means is placed at an appropriate position. Can be fixed.

  Further, the flush toilet of the present invention is a flush toilet main body having a tank mounting surface for mounting a bowl portion, a drain trap conduit, and a water storage tank, and the flush toilet of the present invention mounted on the tank mounting surface. And a water storage tank.

In the flush toilet of the present invention, the flush toilet body is formed of ceramics, and the water storage tank is placed on at least three supporting protrusions formed on the tank placement surface.
According to the present invention configured as described above, the water storage tank is placed on at least three supporting protrusions. Therefore, even if there is a manufacturing error in the shape of the flush toilet body, the water storage tank can be reliably and without play. Can be supported.

  According to the water storage tank for a flush toilet of the present invention and the flush toilet equipped with the same, the water storage tank can be coupled to the flush toilet body with good workability without fear of water leakage.

1 is a perspective view showing an entire flush toilet according to a first embodiment of the present invention. It is a perspective view which shows the state which removed the water storage tank cover of the flush toilet by 1st Embodiment of this invention. It is a perspective view which shows the state which removed the water storage tank from the flush toilet bowl by 1st Embodiment of this invention. It is a perspective view of the water storage tank by a 1st embodiment of the present invention. 1 is an exploded perspective view of a water storage tank according to a first embodiment of the present invention. It is sectional drawing which shows the attachment state to the flush toilet body of a water storage tank. It is sectional drawing which shows the modification of a fixing means. It is a perspective view which shows the whole flush toilet by 2nd Embodiment of this invention. It is a perspective view which expands and shows the part of a water storage tank by removing the water storage tank cover of the flush toilet bowl by 2nd Embodiment of this invention. It is a perspective view which shows the water supply means fixing plate for attaching a water stop cock to a fixing plate. It is a disassembled perspective view which shows the attachment state to the fixed plate of a water stop cock.

Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
First, with reference to FIG. 1 thru | or FIG. 6, the flush toilet by 1st Embodiment of this invention is demonstrated.
FIG. 1 is a perspective view showing the entire flush toilet according to the first embodiment of the present invention. FIG. 2 is a perspective view showing a state where the water storage tank cover of the flush toilet according to the present embodiment is removed. FIG. 3 is a perspective view showing a state in which the water storage tank is removed from the flush toilet according to the present embodiment. FIG. 4 is a perspective view of the water storage tank according to the first embodiment of the present invention. FIG. 5 is an exploded perspective view of the water storage tank according to the present embodiment. FIG. 6 is a cross-sectional view showing a state in which the water storage tank is attached to the flush toilet body.

  As shown in FIG. 1, a flush toilet 1 according to the first embodiment of the present invention includes a flush toilet body 2 and a water storage tank 8 (FIG. 2) placed on the flush toilet body 2. . A water storage tank 8 placed on the flush toilet body 2 is covered with a water storage tank cover 4. In the present embodiment, the flush toilet body 2 and the water storage tank cover 4 are made of earthenware. By covering the internal water storage tank 8 with the water storage tank cover 4, bolts or the like connecting the water storage tank 8 and the flush toilet body 2 are not exposed to the outside, and the appearance of the flush toilet 1 can be improved. it can. Moreover, by removing the water storage tank cover 4, the water storage tank 8 can be easily attached to and removed from the flush toilet body 2 as will be described later.

  The flush toilet body 2 has a bowl portion 2a for receiving filth, and a drain trap pipe 2b extending from the bottom of the bowl portion 2a. Further, a cleaning switch 6 is provided on the upper end surface of the water storage tank cover 4, and by operating this cleaning switch 6, the cleaning water in the water storage tank 8 is discharged into the bowl portion 2a to clean the bowl portion 2a. can do.

  As shown in FIG. 2, by removing the water tank cover 4 of the flush toilet 1, the water tank 8 covered by the water tank 8 is exposed. The water storage tank 8 is placed on the tank placement surface 2 c of the flush toilet main body 2. In this embodiment, the upper end surface of the flush toilet main body 2 is formed in a substantially flat shape, and the rear portion of the upper end surface of the flush toilet main body 2 constitutes the tank mounting surface 2c. In addition, the upper end surface of the flush toilet main body 2 and the tank mounting surface 2c do not necessarily have to be on the same plane.

  As shown in FIG. 3, the tank mounting surface 2c of the flush toilet main body 2 is formed with a tank connection hole 2d for allowing the wash water in the water storage tank 8 to flow therethrough, and two implantation bolts 10 and the water storage tank. Three supporting protrusions 12 that support the supporting member 8 are provided.

  The tank connection hole 2d is a circular hole provided substantially at the center of the tank mounting surface 2c, and the water storage tank 8 is connected to the tank connection hole 2d. The wash water that flowed into the flush toilet body 2 from the tank connection hole 2d was provided so as to face the rim spout (not shown) provided at the top of the bowl portion 2a and the drain trap pipe 2b. It is discharged from a jet spout (not shown) and cleans the bowl portion 2a.

  The implantation bolts 10 are bolts that are arranged on both sides of the tank connection hole 2d at substantially symmetrical positions and are attached to the flush toilet body 2 so as to protrude vertically upward from the tank placement surface 2c. .

  The support protrusion 12 is formed integrally with the flush toilet body 2 and protrudes upward from the tank mounting surface 2c. Two of the three support protrusions 12 are arranged in the vicinity of the front of each stud bolt 10 and the remaining one is formed in the vicinity of the rear of the tank connection hole 2d. In the present embodiment, after the pottery flush toilet body 2 is formed, the support protrusions 12 are polished so that their top surfaces are located on the same horizontal plane. Thereby, even when there is a manufacturing error in the shape of the formed flush toilet body 2, the water storage tank 8 can be accurately supported horizontally.

Next, with reference to FIG.4 and FIG.5, the structure of the water storage tank 8 is demonstrated.
As shown in FIGS. 4 and 5, the water storage tank 8 includes a tank main body 14, a fixing plate 16 that is a tank fixing portion attached to a lower portion of the tank main body 14, and drainage stored in the tank main body 14. And a valve 18 (FIG. 5).

  The tank body 14 has an open upper end including a tank bottom surface 14a, a tank side surface 14b extending substantially vertically upward from the tank bottom surface 14, and a tank shelf 14c extending substantially horizontally above the tank bottom surface 14a. It is a resin container. In addition, a tank drain port 14e through which washing water flows out is formed in the approximate center of the tank bottom surface 14a. Further, two plate fixing bolts 14 d extending downward from the tank bottom surface 14 a are formed integrally with the tank body 14 on the tank bottom surface 14 a. These two plate fixing bolts 14d are disposed on both sides of the tank drain port 14e substantially diagonally on the substantially rectangular surface where the tank body 14 and the fixing plate 16 are in contact.

  The fixing plate 16 is a generally rectangular metal plate, and has two arm portions 16a which are protruding portions extending from the short sides on both sides. A tank fixing hole 16b is formed at the tip of the arm portion 16a. Are provided. These tank fixing holes 16b are provided at positions corresponding to the respective implantation bolts 10 when the water storage tank 8 is disposed at a predetermined position on the tank mounting surface 2c of the flush toilet main body 2. Further, the tank fixing hole 16b is disposed outside a region in which a closed curve C (shown by a thick solid line in FIG. 5) on the outer periphery of the tank bottom surface 14a is projected in the vertical direction. Furthermore, a flexible portion 16c configured to be easily elastically deformed by narrowing the width of the arm portion 16a is provided at the base portion of each arm portion 16a. Thereby, each arm part 16a can be easily bent in the vertical direction, and the position of the tank fixing hole 16b can be moved in the vertical direction.

  Further, plate fixing holes 16d are provided at positions corresponding to the plate fixing bolts 14d of the fixing plate 16, respectively. The plate fixing bolt 16 can be fixed to the tank body 14 by inserting each plate fixing bolt 14d into the plate fixing hole 16d and screwing the connecting nut 20 into the plate fixing bolt 14d. Further, plate drain holes 16e (FIG. 5) are provided at positions corresponding to the tank drain port 14e of the fixed plate 16, respectively.

  The drain valve 18 is a generally cylindrical on-off valve mechanism accommodated in the tank body 14, and is opened for a predetermined time by the operation of the washing switch 6, and the washing water in the tank body 14 flows out to the flush toilet body 2. It is configured to let you. A lower end portion of the drain valve 18 passes through the tank drain port 14 e of the tank body 14 and the plate drain hole 16 e of the fixed plate 16 and protrudes downward from the fixed plate 16. A drain valve fixing nut 18 a is screwed to the protruding lower end of the drain valve 18, and the drain valve 18 is fixed to the tank body 14. Further, the lower end portion of the drain valve 18 is fitted into the packing 18b, and water tightness between the flush toilet main body 2 is secured.

Next, with reference to FIG. 6, the attachment procedure to the flush toilet body 2 of the water storage tank 8 is demonstrated.
First, the implantation bolt 10 is protruded upward from the lower side of the tank mounting surface 2c of the flush toilet main body 2, and the washer 10a is passed through the implantation bolt 10 from above the tank mounting surface 2c. The bolt fixing nut 10b is screwed. Thereby, the implantation bolt 10 is fixed so as to protrude upward from the tank placement surface 2c.

  On the other hand, a fixing plate 16 is fixed to the tank bottom surface 14 a of the tank body 14 by a connecting nut 20. Further, a drain valve 18 is fixed to the tank body 14 by a drain valve fixing nut 18a.

  The water storage tank 8 assembled in this way is arranged on the tank mounting surface 2c of the flush toilet body 2. At this time, the front end portion of the drain valve 18 extending from the bottom of the water storage tank 8 is inserted into the tank connection hole 2 d, and the front end portions of the two implantation bolts 10 extending from the flush toilet body 2 are the tank fixing holes of the fixing plate 16. The water storage tank 8 is arrange | positioned so that it may each be inserted into 16b. Thus, the packing 18b disposed at the tip of the drain valve 18 is sandwiched between the tank bottom surface 14a of the tank body 14 and the peripheral edge of the tank connection hole 2d, and the water storage tank 8 and the flush toilet body 2 Watertightness during the period is ensured.

  The water storage tank 8 placed on the tank placement surface 2c is supported by three support protrusions 12 (FIG. 3) formed on the tank placement surface 2c. As described above, since the three support protrusions 12 are flattened so as to be positioned in the same horizontal plane, the water storage tank 8 supported by each support protrusion 12 is accurately oriented horizontally. .

  Next, a washer 22a is placed on each of the studs 10 projecting upward from the tank fixing hole 16b of the fixing plate 16, and a tank fixing nut 22b is screwed together so that the water storage tank 8 is flush with the flush toilet body. Combine with 2. Therefore, the stud 10 and the tank fixing nut 22b constitute fixing means.

  Here, as shown in FIG. 6, in this embodiment, even when the tank fixing nut 22 b is tightened and the water storage tank 8 is fixed, the surface on the back side of the fixing plate 16 is fixed to the stud bolt fixing nut 10 b. It is in the state away from the upper end surface of. As described above, since there is a gap between the fixing plate 16 and the tank mounting surface 2c (the upper end surface of the nut 10b for fixing the stud bolt), there is a manufacturing error in the height of the support protrusion 12 of the flush toilet body 2. In some cases, this error can be absorbed by the gap. Conversely, when the height of the support protrusion 12 is lower than the upper end surface of the stud 10 for fixing the stud bolt, the arm portion 16a of the fixing plate 16 is elastically deformed upward to absorb the error. it can.

  In addition, since the fixing plate 16 is away from the stud bolt fixing nut 10b, when the stud bolt fixing nut 10b is tightened with a larger torque, the fixing plate 16 is elastically deformed. At this time, since the flexible portion 16c which is easily elastically deformed is formed at the base end of the arm portion 16a of the fixed plate 16, the fixed plate 16 is deformed in the flexible portion 16c. Thereby, when the nut 10b for fixing a stud is overtightened with a large torque, it is possible to prevent the entire fixing plate 16 from being elastically deformed. When the entire fixing plate 16 is elastically deformed, a force that separates the connecting nut 20 that connects the tank body 14 and the fixing plate 16 from the tank body 14 acts, so that the resin made in the tank body 14 is made of resin. The plate fixing bolt 14d may be damaged, but this can be avoided in this embodiment.

  According to the flush toilet of the first embodiment of the present invention, the tank body is coupled to the flush toilet body by tightening the tank fixing nut from the outside of the flush toilet body and the tank body. It can be combined with the flush toilet body with good workability.

  Moreover, according to the flush toilet of this embodiment, since the tank body and the fixing plate are formed separately, they can be formed of different materials, and materials suitable for the tank body and the tank fixing part, respectively. Can be selected.

  Furthermore, according to the flush toilet of the present embodiment, the tank body that comes into contact with the wash water is formed of resin, so that deterioration of the tank body such as corrosion can be prevented and a large force can be applied when the water storage tank is fixed. By forming the tank fixing part on which the water acts with metal, it is possible to prevent the fixing plate from being broken when the water storage tank is fixed.

  Further, according to the flush toilet of the present embodiment, the tank body and the fixing plate are fixed by the plate fixing bolt formed integrally with the tank body, so that the tank body and The fixing plate can be bolted and water leakage from the tank body can be reliably prevented.

  Furthermore, according to the flush toilet of the present embodiment, each plate fixing bolt is disposed on substantially the diagonal line of the generally rectangular surface where the tank body and the fixing plate are in contact with each other. It is possible to effectively counter the external force pushing in the direction of the short side, and the tank body can be firmly fixed to the fixing plate.

  Further, according to the flush toilet of the present embodiment, since the fixing plate includes the flexible portion, the flexible portion is elastic even when an excessive force is applied to the arm portion by the tank fixing nut. By being deformed, the movement of the arm portion is allowed, and deformation of the entire fixed plate can be avoided. Thereby, generation | occurrence | production of malfunctions, such as a failure | damage of the plate fixing volt | bolt by the whole fixing plate deform | transforming, can be prevented. In addition, when the fixed plate is placed on the tank placement surface or support protrusion on the flush toilet body, even if the vertical dimension varies due to manufacturing errors, the flexible part is elastically deformed. The deformation of the entire fixed plate can be avoided.

  Furthermore, according to the flush toilet of this embodiment, since the tank shelf is provided in the tank body so as to overhang the tank fixing nut, the tank fixing nut can be tightened from the outside of the tank body. While being possible, the internal volume of the tank body can be increased.

  Further, according to the flush toilet of the present embodiment, the water storage tank is placed on the three supporting protrusions, so even if there is a manufacturing error in the shape of the flush toilet main body, the water storage tank is surely free of play. Can be supported. Moreover, the water storage tank can be accurately supported horizontally by finishing the upper end surfaces of the three supporting protrusions with high accuracy.

Further, in the first embodiment described above, the fixing means for connecting the fixing plate and the flush toilet main body is constituted by the implantation bolt and the tank fixing nut, but even if they are combined by other means good.
Furthermore, in the first embodiment described above, the tank main body and the plate fixing bolt are integrally configured. However, the plate fixing bolt is configured to be detachable from the bottom surface of the tank main body, and the tank main body and the plate fixing bolt are configured. Bolts can be configured separately.

FIG. 7 is a cross-sectional view showing a modification of the fixing means.
In this modification, the fixing means includes a tank fixing bolt 30, a cylindrical elastic deformation member 32 having the tank fixing bolt 30 inserted therethrough, and an elastic deformation nut 34.

  The tank fixing bolt 30 is inserted into the tank fixing hole 16b of the fixing plate 16 from above. The outer periphery of the elastic deformation nut 34 is fixed to the inner wall surface of the lower portion of the cylindrical elastic deformation member 32. An elastic deformation member 32 is placed on the tank fixing bolt 30 protruding from the lower side of the fixing plate 16, and the tank fixing bolt 30 and the elastic deformation nut 34 are screwed together. Thereby, the elastic deformation member 32 is attached to the fixed plate 16.

  Next, the elastic deformation member 32 attached to the fixed plate 16 is inserted into a hole provided in the tank mounting surface 2 c of the flush toilet main body 2. When the tank fixing bolt 30 is rotated in this state, the elastic deformation nut 34 is pulled up by a screw action. Accordingly, the elastic deformation member 32 is deformed as indicated by an imaginary line in FIG. 7, and the tank fixing bolt 30 cannot be removed from the flush toilet body 2. Thereby, the fixing plate 16 is fixed to the flush toilet body 2.

Further, in the above modification, the elastic deformation member 32 is expanded on the back side of the tank mounting surface 2c and the tank fixing bolt 30 is fixed. However, when the tank mounting surface 2c is thick, the elastic deformation member 32 32 may be expanded inside the hole of the tank mounting surface 2c. In this case, the tank fixing bolt 30 is fixed by friction between the expanded elastic deformation member 32 and the inner wall surface of the hole.
In addition to the above-described modification, a snap stopper, a split pin, or the like can be used as the fixing means.

  Next, a flush toilet according to a second embodiment of the present invention will be described with reference to FIGS. The flush toilet of this embodiment has a stop cock attached to the local washing device (not shown) so as to protrude from the lower part of the side surface of the water storage tank cover. Different from one embodiment. Therefore, only the points of this embodiment different from the first embodiment will be described here.

  FIG. 8 is a perspective view showing the entire flush toilet according to the second embodiment of the present invention. FIG. 9 is an enlarged perspective view showing a portion of the water storage tank by removing the water storage tank cover of the flush toilet according to the present embodiment. FIG. 10 is a perspective view showing a water supply means fixing plate for attaching a water stop cock to the fixing plate. FIG. 11 is an exploded perspective view showing a state where the water stop cock is attached to the fixing plate.

  As shown in FIG. 8, a flush toilet 100 according to the second embodiment of the present invention includes a flush toilet body 102 and a water storage tank 108 (FIG. 9). The water storage tank 108 is covered with a water storage tank cover 104. Further, a stop cock 105 as a water supply means is attached so as to protrude from the lower part of the side surface of the water storage tank cover 104.

  As shown in FIG. 9, the water storage tank 108 includes a tank main body 114, a fixing plate 116 that is a tank fixing portion attached to a lower portion of the tank main body 114, and a drain valve 118 housed in the tank main body 114. Have. Further, a water supply means fixing plate 138 for attaching the water stop cock 105 is attached to the fixing plate 116.

  The fixed plate 116 is a generally rectangular metal plate, and has two arm portions 116a (only one side is shown in FIG. 9) that is a protruding portion extending from the short sides on both sides. These arm portions 116a are fixed to the flush toilet main body 102 by respective studs and nuts.

  As shown in FIG. 10, the fixing plate 116 is further formed with a water supply means fixing portion 116b which is a second overhanging portion. The water supply means fixing portion 116b is formed integrally with the fixing plate 116 on one rear side of the arm portion 116a so as to protrude in the same plane as the arm portion 116a.

  The water supply means fixing plate 138 is a metal plate bent in an approximately L shape, and is screwed to the water supply means fixing portion 116b so that the long side of the L shape overlaps the water supply means fixing portion 116b. Further, the water supply means fixing plate 138 is formed with two elongated holes 138a which are fixing position adjusting means for attaching the water supply means fixing plate 138 to the water supply means fixing portion 116b so that the position of the water supply means fixing plate 116b can be adjusted. By these long holes 138a, the position where the water supply means fixing plate 138 is screwed to the water supply means fixing portion 116b can be adjusted in the lateral direction of the flush toilet.

  Further, the water supply means fixing plate 138 is provided with four female screw holes 138b for fixing two fixing bands 140a and 140b, which are water supply means fixing means for attaching the water stop cock 105. The stop cock 105 has its base end fixed to the short side of the L-shaped water supply means fixing plate 138 by a fixing band 140a, and its distal end is fixed to the water supply means fixing plate by the fixing band 140b. It is fixed to the long side of 138. These fixing bands 140a and 140b are formed of a thin metal plate having a predetermined width which is bent in a U-shape, and the water stop 105 is fixed to the water supply means by tightening the periphery of the water stop 105. Fix to the plate 138. As these fixing bands, general-purpose products according to the form of the stop cock 105 can also be used.

  As shown in FIG. 9, the tap water introduced from the washing water introducing unit 130 is branched into two by a T-shaped tube 132, one of which is sent to the stop cock 105 through the water supply pipe 134. Is introduced into the tank body 114 through the water supply pipe 136. Wash water sent to the stop cock 105 is supplied to a local cleaning device (not shown) via a flexible hose 105 a connected to the stop cock 105. The stop cock 105 is opened during normal use, and is closed during maintenance of the local cleaning device.

Next, with reference to FIG. 11, an example of the attachment procedure of the water stop cock 105 is demonstrated.
First, the water stop cock 105 is fixed to the water supply means fixing plate 138 by the fixing bands 140a and 140b. Next, the two screws 142 are passed through the long holes 138a of the water supply means fixing plate 138 and screwed into the female screw holes 116c provided in the water supply means fixing portion 116b. Thereby, the water supply means fixing plate 138 is temporarily fixed to the water supply means fixing portion 116b. In this temporary fixing, each screw 142 is loosely tightened so that the water supply means fixing plate 138 can slide along the long hole 138a.

Next, the flexible hose 105a is connected to the flexible hose attachment part 105b of the water stop cock 105, and the water supply pipe 134 is connected to the water supply pipe attachment part 105c. Further, the water supply means fixing plate 138 is slid along the long hole 138a, and the water stop cock 105 is positioned at a predetermined position. Finally, the screws 142 are tightened to fix the water supply means fixing plate 138 to the water supply means fixing portion 116b.
Note that the step of connecting the flexible hose 105a to the stop cock 105 may be performed after the stop cock 105 is positioned at a predetermined position and the screws 142 are completely tightened.

  By sliding the water supply means fixing plate 138 along the elongated hole 138a, even if there is a manufacturing error in the dimensions of the flush toilet body 102, etc., the error is absorbed, and the stop cock 105 is placed in an appropriate position. Positioned. Further, since the position of the stop cock 105 is adjusted after the flexible hose 105a is connected to the stop cock 105, a cap nut 105d (FIG. 9) for fixing the flexible hose 105a to the stop cock 105 is provided in the flush toilet. The stop cock 105 can be positioned at a position very close to the side surface of the main body 102 and difficult to tighten the cap nut 105d.

  According to the flush toilet of the second embodiment of the present invention, since the stop cock is attached to the fixing plate, the stop cock is fixed without providing a through hole or the like for attaching the stop cock to the tank body. It is possible to avoid the risk of water leakage due to the installation of the stop cock.

Moreover, according to the flush toilet of this embodiment, since the stop cock is attached to the fixed plate, the stop cock can be removed together with the tank body, and the stop cock and the tank at the time of attachment and removal are provided. Interference of the main body can be avoided.
Furthermore, according to the flush toilet of this embodiment, since the water stop cock is fixed to the water supply means fixing portion via the water supply means fixing plate, the water stop cock can be easily fixed.

Further, according to the flush toilet of the present embodiment, various types of stop cocks and the like can be attached to the same water supply means fixing portion by exchanging the water supply means fixing plate.
Furthermore, according to the flush toilet of the present embodiment, since the water stop cock is fixed by the fixing band, a general-purpose product can be used as the fixing band.

  Further, according to the flush toilet of the present embodiment, the fixing with the fixing band can improve the workability as compared with the case of using the water supply means fixing means that covers the water supply means from above. it can.

  Furthermore, according to the flush toilet of the present embodiment, the fixing position of the water supply means fixing plate is adjusted by the long hole, so that the shape error of the flush toilet body etc. is absorbed, and the stop cock is placed at an appropriate position. Can be fixed.

  Further, in the above-described second embodiment of the present invention, the stop cock was attached to the water storage tank as the water supply means, but instead of the stop cock, a valve body such as a constant flow valve, a pipe for water supply, etc. Various water supply means can be attached to the water storage tank.

  Further, in the second embodiment described above, the position of the water supply means fixing plate can be adjusted to the side of the flush toilet, but the position adjustment means can be slid or rotated in any direction. Can be configured.

  As mentioned above, although preferable embodiment of this invention was described, a various change can be added to embodiment mentioned above. In particular, in the above-described embodiment, the tank main body and the fixing plate that is the tank fixing portion are configured separately, but they can also be configured integrally.

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Flush toilet body 2a Bowl part 2b Drain trap pipe 2c Tank mounting surface 2d Tank connection hole 4 Reservoir tank cover 6 Washing switch 8 Reservoir tank 10 Stud bolt 10a Washer 10b Stud bolt fixing nut 12 Support projection 14 Tank body 14a Tank bottom surface 14b Tank side surface 14c Tank shelf 14d Plate fixing bolt (fixing part fixing bolt)
14e Tank drain 16 Fixing plate (Tank fixing part)
16a Arm part (overhang part)
16b Tank fixing hole 16c Flexible portion 16d Plate fixing hole 16e Plate drain hole 18 Drain valve 18a Drain valve fixing nut 18b Packing 20 Connection nut 22a Washer 22b Tank fixing nut 100 Flush toilet according to the second embodiment of the present invention 102 Flush toilet body 104 Water storage tank cover 105 Stop cock (Water supply means)
105a Flexible hose 105b Flexible hose attachment part 105c Water supply pipe attachment part 105d Cap nut 108 Water storage tank 114 Tank body 116 Fixing plate (tank fixing part)
116a Arm part (overhang part)
116b Water supply means fixing part (overhang part)
118 Drain valve 130 Washing water introduction part 132 T-shaped pipe 134 Water supply pipe 136 Water supply pipe 138 Water supply means fixing plate 138a Long hole (fixed position adjusting means)
140a, 140b Fixing band (water supply means fixing means)
142 screw

Claims (14)

It is a water storage tank for a flush toilet that is placed on the flush toilet body and used in combination with the flush toilet body,
A tank body provided with a tank bottom surface provided with a tank drainage port for allowing washing water to flow into the flush toilet body, and a tank side surface extending upward from the tank bottom surface;
A tank fixing part having a projecting part that projects outward from an area in which the closed curve of the outer periphery of the tank bottom surface is projected in the vertical direction;
The closed curve is arranged outside the region projected in the vertical direction, and the overhanging part is fixed to the flush toilet body by the operation from the outside of the flush toilet body and the tank body, and the tank is fixed. Fixing means for coupling the tank body to the flush toilet body through a section;
A water storage tank characterized by comprising:   The water storage tank according to claim 1, wherein the tank body and the tank fixing portion are integrally formed.   The water storage tank according to claim 1, wherein the tank body and the tank fixing portion are formed separately.   The water storage tank according to claim 3, wherein the tank body is made of resin, and the tank fixing portion is made of metal.   The tank body includes an integrally formed fixing portion fixing bolt that extends downward from the bottom surface of the tank. The fixing portion fixing bolt extends through the tank fixing portion, and is fixed to the fixing portion fixing bolt. The water storage tank according to claim 3 or 4, wherein the tank fixing portion is fixed to the tank body by screwing a connecting nut.   6. The water storage tank according to claim 5, wherein two fixing portion fixing bolts are provided, and each fixing portion fixing bolt is disposed on a substantially diagonal line of a surface where the tank main body and the tank fixing portion are in contact with each other.   The water storage tank according to any one of claims 3 to 6, wherein the tank fixing portion includes a flexible portion that is elastically deformed so that the protruding portion can move in a vertical direction.   The water storage tank according to any one of claims 1 to 7, wherein the tank body is configured to protrude above the fixing means.   Furthermore, it has a water supply means which supplies washing water, and the water supply means fixing | fixed part for fixing the said water supply means is provided in the overhang | projection part of the said tank fixing | fixed part. The water storage tank described in the item.   Further, the water supply means fixing plate and the water supply means fixing means for fixing the water supply means to the water supply means fixing plate, the water supply means via the water supply means fixing plate, the water supply means fixing portion. The water storage tank according to claim 9, which is fixed to the water tank.   11. The water storage tank according to claim 10, wherein the water supply means fixing means is a fixing band that has a predetermined width and holds the water supply means to the water supply means fixing plate while suppressing the periphery of the water supply means.   The water storage tank according to claim 10 or 11, further comprising a fixing position adjusting means for adjusting a fixing position of the water supply means fixing plate with respect to the water supply means fixing portion. A flush toilet body provided with a tank mounting surface for mounting a bowl portion, a drain trap conduit, and a water storage tank;
The water storage tank according to any one of claims 1 to 12, mounted on the tank mounting surface,
A flush toilet characterized by having.   The flush toilet according to claim 13, wherein the flush toilet body is formed of ceramics, and the water storage tank is placed on at least three supporting protrusions formed on the tank placement surface.

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