JP2011241545A - Tank device, and water closet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix a tank device to a toilet bowl body on site in such a state that an inner tank is housed in an outer tank, without decreasing the space inside the tank.SOLUTION: A tank device 10 includes: an inner tank 110 which stores wash water for washing a bowl; an outer tank 100 which houses the inner tank 110; and a fixing mechanism 160 which fixes the outer tank 100 to a toilet bowl body 20. The fixing mechanism 160 includes: a fixed member 162 held to the outer periphery of the bottom of the inner tank 110; and a fixing body 161, one end of which is fixed to the fixed member 162, the other end of which is fixed to the toilet bowl body 20. The fixing body 161 is inserted through a hole 101b formed in the bottom of the outer tank 100, thereby fixing the inner periphery of the bottom together with the toilet bowl body 20.

Description

  The present invention relates to a tank device and a flush toilet in which the tank device is fixed.

  Conventionally, as shown in, for example, Patent Document 1, a flushing apparatus in which a tank apparatus including an interior tank that stores wash water for washing a toilet bowl and an exterior tank that houses the interior tank is fixed. Toilet bowl is known. When a tank device having such a structure is installed at a construction site such as a home, the interior tank is transported to the construction site while being accommodated in the exterior tank, and then the interior tank is installed at the construction site. And attach the fixing bolt to the outer peripheral surface of the bottom of the interior tank, and then store the interior tank in the exterior tank again so that the fixing bolt passes through the hole formed on the bottom surface of the exterior tank and protrudes from the bottom surface of the exterior tank. The tank device was fixed to the toilet body with the fixing bolts.

  Furthermore, for example, in Patent Document 2 (see paragraphs [0090] to [0096]), an accommodation space for accommodating a fixing bolt is provided at the bottom of the interior tank, and the fixing bolt is accommodated in this accommodation space at the time of shipment. At the construction site, the fixing bolt is pushed out of the housing space using a push button or the like, protruded from the hole formed in the bottom surface of the exterior tank, and the tank device by the fixing bolt protruding from the bottom surface of the exterior tank. There is also known a tank device in which the is fixed to the toilet body. According to this tank apparatus, it was possible to fix the tank apparatus to the flush toilet with the interior tank accommodated in the exterior tank.

Japanese Patent Laid-Open No. 10-33228 JP 2000-73428 A

However, the tank apparatus disclosed in Patent Document 1 has a problem that it is not suitable for work in a narrow room such as a toilet in an apartment because the interior tank is taken in and out.
Furthermore, in the tank apparatus of Patent Document 2, it is not necessary to take in and out the interior tank, but it is necessary to provide a space for accommodating the fixing bolt at the bottom of the interior tank. There was a problem that the space of became narrow.

  The present invention has been made to solve the problems of the prior art, and fixes the tank device to the toilet body in a state where the interior tank is accommodated in the exterior tank without narrowing the space in the interior tank. An object of the present invention is to provide a tank device and a flush toilet.

In order to achieve the above object, the present invention is a tank device fixed to a toilet body, an exterior tank, and an interior tank that stores cleaning water that is mounted in the exterior tank and cleans the toilet body. A fixing portion for fixing the exterior tank to the toilet body, and the fixing portion is outside through a fixed receiving portion that is attached in advance to the bottom surface of the interior tank, and a hole whose upper end is formed in the bottom surface of the exterior tank. And a fixed main body portion that is fitted to the fixed receiving portion and fixed at the lower end thereof to the toilet main body.
In the present invention configured as described above, a fixing portion for fixing the exterior tank to the toilet body is provided, the fixing portion is a fixed receiving portion attached to the bottom surface of the interior tank, and the upper end thereof is on the bottom surface of the exterior tank. Since it has a fixed main body part that is inserted from the outside through the formed hole and fits with the fixed receiving part and its lower end is fixed to the toilet body, the inner tank is accommodated in the outer tank. Even if there is, the upper end of the fixed body part is fitted and fixed to the fixed receiving member attached to the bottom surface of the interior tank through the hole formed in the bottom surface of the exterior tank, and the lower end of the fixed body part is further fixed to the toilet. Thus, the exterior tank can be fixed to the toilet body. Furthermore, since the fixed main body is attached from the outside of the exterior tank, it is not necessary to provide a space for accommodating the fixed main body in the interior tank.

In the present invention, it is preferable that the distance between the bottom surface of the interior tank and the bottom surface of the exterior tank be maintained at a predetermined distance so that the bottom surface of the stationary receiver is in contact with the bottom surface of the exterior tank. And an interval holding means for forming a gap between the upper surface of the part and the bottom surface of the interior tank.
In the present invention configured as described above, even when a lateral load acts on the exterior tank and tilts toward the exterior tank, the lower surface of the fixed receiving portion abuts against the bottom surface of the exterior tank even when it is inclined to the exterior tank. In this state, since a gap is formed between the upper surface of the fixed receiving portion and the bottom surface of the interior tank, the inclination of the exterior tank is not transmitted to the interior tank, and therefore, the inclination of the interior tank is prevented. The bottom surface of the tank is not deformed, thereby preventing leakage of water.

In this invention, Preferably, the said space | interval holding means is a leg part provided in the bottom face of the said interior tank.
According to the present invention configured as above, the occurrence of water leakage can be prevented with a simple structure.

In the present invention, preferably, the fixed main body portion has a bolt portion and a stopper portion fixed to the bolt portion, and the fixed receiving portion has an attachment hole in which the upper end of the bolt portion can be screwed and fixed. The stopper portion of the main body portion is provided at a position where a gap is formed between the upper surface of the fixed main body portion and the bottom surface of the interior tank.
In the present invention configured as described above, since a gap is formed between the upper surface of the fixed main body portion and the bottom surface of the interior tank, even if a lateral load acts and the exterior tank is inclined, the fixed main body portion It is possible to prevent an excessive load from acting on the bottom surface of the internal tank.

  Furthermore, this invention is the flush toilet provided with the tank apparatus mentioned above.

  According to the tank apparatus and flush toilet of the present invention, the tank apparatus can be fixed to the toilet body in a state where the interior tank is accommodated in the exterior tank without narrowing the space in the interior tank.

It is a front view which shows the flush toilet bowl by one Embodiment of this invention. It is a left view which shows the flush toilet bowl by one Embodiment of this invention. It is front sectional drawing which shows the internal structure of the tank apparatus fixed to the toilet bowl main body by one Embodiment of this invention. FIG. 3 is a part development view showing an exterior tank, an interior tank, a toilet body and the like of a flush toilet according to an embodiment of the present invention. It is the perspective view which looked at the interior tank of the tank device by one embodiment of the present invention from the back lower part. It is a partial expanded rear sectional view showing the connection structure with the exterior tank, interior tank, and toilet body in the tank device by one embodiment of the present invention. It is a partial expanded back sectional view which expands and shows the part which fixes the exterior tank in the toilet body in the tank apparatus by one Embodiment of this invention. It is a perspective view which shows the stationary receiving member of the tank apparatus by one Embodiment of this invention. It is a front view which shows the fixed receiving member of the tank apparatus by one Embodiment of this invention. It is sectional drawing which shows the stationary receiving member of the tank apparatus by one Embodiment of this invention. It is a front view which shows the fixing member of the tank apparatus by one Embodiment of this invention.

Hereinafter, a tank apparatus and a flush toilet according to an embodiment of the present invention will be described with reference to the drawings.
1 and 2 show an overall configuration of a flush toilet 1 according to an embodiment of the present invention, FIG. 1 is a front view, and FIG. 2 is a left side view. As shown in FIGS. 1 and 2, the flush toilet 1 is composed of a toilet body 20 and a tank device 10 fixed to the toilet body 20.

  FIG. 3 is a vertical sectional view showing the inside of the tank device 10 fixed to the toilet body 20 according to the embodiment of the present invention. FIG. 4 is a part development view showing the exterior tank 100, the interior tank 110, the toilet body 20 and the like in an expanded manner. As shown in FIGS. 3 and 4, the tank apparatus 10 includes an exterior tank 100, an interior tank 110 accommodated in the exterior tank 100, a lid 120 provided on the exterior tank 100, and an interior tank 110. A water supply mechanism 130 that supplies water to the toilet body, a drain valve mechanism 140 that controls the supply of cleaning water from the interior tank 110 to the toilet body 20, an operation mechanism 150 that operates the drain valve mechanism 140, and an exterior tank 100 that is connected to the toilet body 20 And a fixing mechanism 160 for fixing to.

  The exterior tank 100 is a pottery container having an open top, a water supply pipe hole (not shown) formed on the left side, a handle insertion hole (not shown) formed on the right side, and a bottom surface A drain pipe hole 101a formed at the center and a pair of bolt insertion holes 101b formed on both sides sandwiching the drain pipe hole 101a at the bottom are provided.

  The lid 120 is a ceramic member having a faucet (not shown) and a hand-washing bowl 121 formed on the upper surface, and is placed so as to cover the upper opening of the exterior tank 100.

  The water supply mechanism 130 is connected to a water supply pipe (not shown) extending from the outside through a water supply pipe hole of the exterior tank 100, and cleaning water is supplied through this water supply pipe. When the drain valve mechanism 140 is opened and the water level in the interior tank 110 decreases, the water supply mechanism 130 supplies water into the interior tank 110 until the original water level is reached.

  The operation mechanism 150 transmits the rotational force applied to the handle 153 via the connection member 155 to rotate the spindle 152 rotatably supported by the spindle support portion 151. The upper ends of the first and second ball chains 156, 157 are connected to the spindle 152. Depending on the rotation direction of the handle 153, the spindle 152 has only the first ball chain 156 or the first and second ball chains 156, 157. The second ball chain 156, 157 is pulled up.

  The drain valve mechanism 140 is a drain valve device capable of setting the amount of drainage in two stages, and includes a cylinder 141 provided so as to surround the opening 111 a of the interior tank 110 and a valve body 142 that closes the opening 111 a of the interior tank 110. Prepare. An opening 141a is formed on the side surface of the cylinder 141, and a drainage amount adjustment valve 143 is attached to the opening 141a. The first and second ball chains 156 and 157 are connected to the valve body 142 and the drainage amount adjusting valve 143. When only the first ball chain 156 is pulled up, a large amount of washing water is discharged (large washing). When the first and second ball chains 156, 157 are pulled up, a small amount of washing water is discharged (small washing).

  FIG. 5 is a perspective view of the interior tank 110 of the tank apparatus 10 according to an embodiment of the present invention as seen from the lower rear side. As shown in the figure, the interior tank 110 includes a container-shaped tank main body 111 having a circular opening 111a formed on the bottom surface, and a cylindrical portion erected along the edge of the opening 111a on the bottom surface of the tank main body 111. 112. A thread is formed on the outer peripheral surface of the cylindrical portion 112. On the bottom surface of the outer peripheral side of the tank body 111, holding parts 113 are formed on both sides of the cylindrical part 112, and the fixed receiving member 162 is held by the holding part 113. In addition, cylindrical leg portions 114 project from the front and rear sides of the bottom edge portions, respectively.

FIG. 6 is a partially enlarged rear sectional view showing a connection structure between the exterior tank 100, the interior tank 110, and the toilet body 20 in the tank apparatus 10 according to the embodiment of the present invention. FIG. 7 is an enlarged partial rear cross-sectional view showing a portion for fixing the exterior tank 100 to the toilet body 20 in the tank apparatus 10 according to the embodiment of the present invention.
As shown in FIG. 6, the interior tank 110 is fixed to the exterior tank 100 by sandwiching the bottom surface of the exterior tank 100 with a flanged nut 200 fastened to the bottom surface and the tubular portion 112, and further, the tubular portion 112. The tip of is fitted and fixed in a supply hole 20a for supplying cleaning water for the toilet body 20. The exterior tank 100 integrated with the interior tank 110 is fixed to the toilet body 20 by a fixing mechanism 160. Hereinafter, this fixing structure will be described in detail.

  First, a structure for fixing the interior tank 110 to the exterior tank 100 will be described. As shown in FIGS. 4 and 6, the interior tank 110 is configured such that the tubular portion 112 is inserted into the tubular portion 112 from the outside of the exterior tank 100 with the tubular portion 112 inserted through the drain pipe insertion hole 101 a of the exterior tank 100. It is fixed to the exterior tank 100 by screwing and tightening the attached nut 200. Further, the cylindrical portion 112 protruding from the bottom surface of the exterior tank 100 is fitted into a supply hole 20 a for supplying cleaning water for the toilet body 20.

  An annular shape is formed between the outer peripheral side bottom surface of the outer tank 100 and the flanged nut 200 and between the outer peripheral side bottom surface of the inner tank 110 and the inner peripheral side bottom surface of the outer tank 100 so as to surround the cylindrical portion 112. The packings 201 and 202 are sandwiched between them to ensure water-stopping.

  Since the exterior tank 100 is made of earthenware, there is a possibility that the tank bottom surface is inclined. In such a case, if the interior tank 110 is fixed to the exterior tank 100 in the tubular portion 112, the bottom surface of the exterior tank 100 and the bottom surface of the interior tank 110 may be close to each other. However, in the present embodiment, the leg portion 114 is provided at the bottom of the interior tank 110, and the bottom portion of the exterior tank 100 abuts on the leg portion 114, so that the outer peripheral side bottom surface of the interior tank 110 and the exterior tank 100 A predetermined interval is secured between the inner peripheral bottom surface.

  As described in detail later, the predetermined interval is such that the lower plate-like portion 172 of the fixed receiving member 162 is in contact with the bottom surface of the exterior tank 100 and the upper plate-like portion 171 is on the outer peripheral side of the interior tank 110. The gap is set such that a gap is formed between the upper surface of the accommodating portion 182 formed on the bottom surface and the edge portion 180.

  Next, the fixing mechanism 160 that fixes the exterior tank 100 to the toilet body 20 will be described. As shown in FIGS. 6 and 7, the fixing mechanism 160 includes a fixing member 161 that passes through bolt insertion holes 101 a and 21 a provided on the bottom surface of the exterior tank 100 and the top surface of the toilet body 20, and the upper end of the fixing member 161. A fixed receiving member 162 that is fixed to the outer surface of the exterior tank 100 and that contacts the bottom surface of the outer peripheral tank 100, and a nut 173 that is attached to the lower end of the fixed member 161. The exterior tank 100 is fixed to the toilet body 20 by being sandwiched between the toilet body 20 and the fixed receiving member 162.

  8 to 10 show a detailed configuration of the fixed receiving member 162 according to the embodiment of the present invention, and are a perspective view, a front view, and a sectional view, respectively. As shown in FIGS. 8 to 10, the fixed receiving member 172 includes a shaft portion 170 in which a housing port 170 a for housing the nut 173 is formed, a nut 173 housed in the housing port 170 a, and the shaft portion 170. The upper plate-like portion 171 having a square shape in plan view connected to the upper portion of the plate portion and the lower plate-like portion 172 having a circular shape in plan view connected to the lower portion of the shaft portion 170 are provided. The width of the accommodation opening 170a formed in the shaft portion 170 is substantially equal to the width of the nut 173, and the rotation of the nut 173 accommodated in the accommodation opening 170a is restricted.

  The fixed receiving member 162 is formed with a through hole 162 a so as to connect the centers of the upper and lower plate-like portions 171 and 172. The opening end that opens to the plate-like portion 172 below the through-hole 162a is formed with an inclination that expands downward. The accommodation port 170a formed in the shaft portion 170 communicates with the through hole 162a, and the hole 173a of the nut 173 accommodated in the accommodation port 170a is aligned with the through hole 162a.

  The fixed receiving member 162 is held in a holding portion 113 formed on the outer peripheral side bottom surface of the interior tank 110. As shown in FIGS. 5 and 7, the holding portion 113 is formed with a groove having a rectangular cross section extending in the front-rear direction on the bottom surface of the interior tank 110, and the edge portion 180 extends toward the center from both edges of the groove. The interior tank 110 includes a housing portion 182 having a substantially rectangular cross section extending in the front-rear direction and a slit 181 formed between the edge portions 180. The accommodating portion 182 is slightly wider than the width of the plate-like portion 171 above the fixed receiving member 162. The width of the slit 181 is slightly wider than the diameter of the shaft portion of the fixed receiving member 162 and narrower than the width of the plate-like portion 171 above the fixed receiving member 162. Further, the height of the accommodating portion 182 is larger than the thickness of the plate-like portion 171 above the fixed receiving member 162.

  The fixed receiving member 162 is held on the bottom surface of the interior tank 110 so that the upper plate-like portion 171 is accommodated in the accommodating portion 182 so as to be slidable in the front-rear direction. Further, since the width of the accommodating portion 182 is slightly wider than the width of the plate-shaped portion 171, the edge of the upper plate-shaped portion 171 is engaged with the inner surface of the accommodating portion 182, and the fixed receiving member 162 is rotated. Be bound.

  In addition, as described above, the leg portion 114 of the interior tank 110 secures a predetermined interval between the bottom surface of the exterior tank 100 and the bottom surface of the interior tank 110, so that the plate-like portion below the fixed receiving member 162 172 is in contact with the inner peripheral bottom surface of the interior tank 110, and between the upper plate-like portion 171 and the upper surface of the accommodating portion 182, and between the upper plate-like portion 171 and the edge portion 180, respectively. A void is secured.

  FIG. 11 is a diagram showing a configuration of the fixing member 161 according to the embodiment of the present invention. As shown in the figure, the fixing member 161 includes a metal bolt portion 190 having a thread formed on the outer periphery, and an annular stopper 191 fixed to the bolt portion 190. As shown in FIG. 7, the stopper 191 is such that a gap is secured between the upper end of the bolt part 190 and the upper surface of the housing part 182 in a state where the upper surface of the stopper 191 is in contact with the outer peripheral side bottom surface of the exterior tank 100. In the position. In addition, in order to prevent tightening using a tool or the like, the outer periphery of the stopper 191 is not provided with a cue (unevenness).

  As shown in FIG. 7, the upper portion of the fixing member 161 passes through the bolt insertion hole 101 b of the exterior tank 100, is inserted into the through hole 162 a of the fixing receiving member 162, and is screwed with the nut 173 of the fixing receiving member 162. The stopper 191 is tightened until the upper surface of the stopper 191 comes into contact with the outer peripheral side bottom surface of the exterior tank 100. As a result, the lower surface of the fixed receiving member 162 also comes into contact with the inner peripheral bottom surface of the exterior tank 100, and the bottom surface of the exterior tank 100 is sandwiched between the stopper 191 and the fixed reception member 162, so that the fixed member 161 and the exterior tank 100 are Fixed.

  And the lower part of the fixing member 161 is inserted in the bolt insertion hole 21a formed in the toilet body 20, and the nut 163 is attached from below. As a result, the bottom surface of the exterior tank 100 is sandwiched between the toilet body 20 and the fixed receiving member 162 and is fixed integrally to the toilet body 20.

  When a lateral load acts on the exterior tank 100 due to a user leaning on it, the exterior tank 100 is inclined. When the fixed receiving member 162 is fixed to the bottom surface of the interior tank 110, the interior tank 110 is tilted together with the exterior tank 100. However, since the cylindrical portion 112 of the interior tank 110 is fitted in the supply hole of the toilet body 20, the cylindrical portion 112 is deformed, and a gap is generated around the cylindrical portion 112, resulting in water leakage. .

  On the other hand, in the present embodiment, a gap is secured between the plate-like portion 171 above the fixed receiving member 162 and the upper and lower surfaces of the accommodating portion 182. For this reason, even if the exterior tank 100 is tilted, the interior tank 110 is not tilted, it is possible to prevent the cylindrical portion 112 from being deformed and to prevent the occurrence of water leakage.

  Further, as in the case where the fixed receiving member 162 is fixed to the interior tank 110, even when the upper end of the fixing member 161 is in contact with the bottom surface of the interior tank 110, if the exterior tank 100 is inclined, The tank 110 is also tilted, and there is a risk that water leakage may occur in the cylindrical portion 112.

  On the other hand, in the present embodiment, since the gap is secured between the upper end of the fixing member 161 and the upper surface of the accommodating portion 182 by the stopper 191 of the fixing member 161, even if the exterior tank 100 is inclined, The internal tank 110 is not tilted, it is possible to prevent the cylinder upper portion 112 from being deformed and to prevent water leakage.

Next, the construction method which fixes the tank apparatus mentioned above to the toilet bowl main body at construction sites, such as a home, is demonstrated.
Hereinafter, for example, when the tank apparatus 10 is installed in a narrow room such as a condominium, a flow from shipment of the tank apparatus 10 to installation on the site will be described.

  In the tank device 10 at the shipping stage, the nut 200 with the collar that is screwed into the cylindrical portion 112 is removed, and the entire tank including the cylindrical portion 112 is accommodated in the exterior tank 100. That is, the interior tank 110 is accommodated in the exterior tank 100 in a state where the cylindrical portion 112 does not protrude from the drain pipe insertion hole of the exterior tank 100.

  Further, for example, members that protrude outside the exterior tank 100 such as the fixing member 161 and the handle 153 of the operation mechanism are removed and accommodated inside the exterior tank 100. Thus, since the fixing member 161 is removed and the bottom surface of the exterior tank 100 is flat, the tank device 10 can be loaded and stored.

  During transportation, the exterior tank 100 is packed in a cardboard box or the like. At this time, if the fixing member 161 protrudes from the bottom surface of the exterior tank 100, a packing material having a size that can be accommodated including the fixing member 161 is required. However, according to the present embodiment, since the fixing member 161 is removed, the tank device 10 can be accommodated within the packaging material having a size that can accommodate the exterior tank 100, and the size of the packaging material can be accommodated. The size can be reduced.

  When installing the tank device 10, first, the lid 120 is removed from the exterior tank 100, and the member accommodated in the exterior tank 100 is taken out.

  Next, the cylindrical portion 112 of the interior tank 110 is inserted into the drain pipe hole 101 a of the exterior tank 100 and protrudes from the bottom surface of the exterior tank 100. In addition, the annular packing 202 to be interposed between the bottom surface of the interior tank 110 and the bottom surface of the exterior tank 100 before shipment is inserted into the cylindrical portion 112 of the interior tank 110 in advance. Then, the annular packing 201 is inserted into the cylindrical portion 112 of the internal tank 110 protruding from the bottom surface of the external tank 100, and the flanged nut 200 is screwed into the cylindrical portion 112 and tightened. As a result, the exterior tank 100 and the interior tank 110 are integrated.

  Next, the front end of the fixing member 161 is inserted into the through hole 162 a of the fixed receiving member 162 through the bolt insertion hole 101 b on the bottom surface of the exterior tank 100. At this time, an inclination is provided to increase the diameter at the lower end of the through-hole 162a of the fixed receiving member 162, and the fixed receiving member 162 is movable along the slit 181. It can be smoothly inserted into the through hole 162a.

  Next, the fixing member 161 is rotated in such a state, and the bolt portion 190 of the fixing member 161 is screwed with the nut 173 of the fixing receiving member 162. Then, the fixing member 161 is tightened until the upper surface of the stopper 191 of the fixing member 161 contacts the bottom surface of the exterior tank 100. As a result, the plate-like member 172 below the fixed receiving member 162 comes into contact with the inner peripheral bottom surface of the exterior tank 100, and the bottom surface of the exterior tank 100 is sandwiched between the fixed receiving member 162 and the stopper 191. It is fixed to the tank 100.

  At this time, no clue is provided on the outer periphery of the stopper 191 of the fixing member 161. For this reason, it is possible to prevent the internal tank 110 from being damaged by excessively tightening the fixing member 161 with a tool or the like.

  Next, the fixing member 161 that protrudes from the bottom surface of the exterior tank 100 is inserted into the bolt hole 21 a of the toilet body 20, and the cylindrical portion 112 of the interior tank 110 that protrudes from the drain pipe insertion hole 101 a serves as the toilet body 20. The exterior tank 100 is installed above the toilet body 20 so as to be inserted into the water supply pipe hole 20a. And the nut 163 is attached to the part inserted in the bolt hole 21a of the toilet body 20 of the fixing member 161. As a result, the bottom surface of the exterior tank 100 is sandwiched between the fixed receiving member 162 and the toilet body 20 via the fixing member 161, and the exterior tank 100 is fixed to the toilet body 20.

Next, the water supply pipe is inserted into the exterior tank 100 from the outside through the water supply pipe hole and connected to the water supply mechanism 130. Further, for example, a member that has been removed at the time of shipment, such as the handle 153 of the operation mechanism, is attached.
The installation of the tank apparatus 10 is completed through the above steps.

  According to the present embodiment, the fixing member 161 is attached to the bottom surface of the interior tank 110 in advance, and from the outside of the exterior tank 100 at the installation site of the tank device 10 through the bolt insertion hole 101b provided in the exterior tank 100. The fixing member 161 can be connected to the fixed receiving member 162. For this reason, it is not necessary to take out the interior tank 110 from the exterior tank 100 at the installation site, and the tank apparatus 10 can be easily installed even in a narrow room.

  Moreover, since the space | gap is ensured between the plate-shaped part 171 above the fixed receiving member 162, the upper surface of the accommodating part 182 of the holding | maintenance part 113 of the interior tank 110, and the edge part 180, the exterior tank 100 inclines. However, the posture of the interior tank 110 is maintained. Thereby, it can prevent that the cylindrical part 112 of the interior tank 110 deform | transforms, a clearance gap arises around the cylindrical part 112, and water leakage arises.

  Further, since the stopper 191 is formed on the fixing member 161, a gap is secured between the upper end of the fixing member 161 and the bottom surface of the interior tank 110. Thereby, even if the exterior tank 100 is tilted, the posture of the interior tank 110 is maintained, and it is possible to prevent a leak from occurring due to a gap around the cylindrical portion 112.

  In the above-described embodiment, the leg portions are provided at the four corners of the interior tank 110. However, the present invention is not limited to this. For example, the interior tank 110 may be provided at three spaced locations on the bottom surface. May be provided. In short, when the fixing member 161 is tightened to the fixing receiving member 162 through the bolt insertion hole of the exterior tank 100, a position where a clearance can be secured between the plate-like portion above the fixing receiving member 162 and the holding portion 113. It suffices if the leg portion is provided on.

  Moreover, in said embodiment, fixing the fixing member 161 to the fixing receiving member 162 by screwing together the fixing receiving member 162 in which the nut 163 was accommodated, and the fixing member 161 which has the bolt part 190; However, the present invention is not limited to this. For example, a mechanism may be provided in which the fixing member is sandwiched and fixed in the fixing receiving member, and the mechanism may be fixed by this mechanism. In short, the fixing method of the fixing member 161 and the fixing receiving member 162 is as follows. It doesn't matter.

  Moreover, the structure of the water supply mechanism 130, the drain valve mechanism 140, and the operation mechanism 150 which were demonstrated above is an example, and it is not restricted to this, The appropriate mechanism according to the performance requested | required is employable.

DESCRIPTION OF SYMBOLS 1 Flush toilet 10 Tank apparatus 20 Toilet body main body 100 Exterior tank 101b Bolt hole 110 Interior tank 111a Opening 113 Holding part 114 Leg part 160 Fixing mechanism 161 Fixed member 162 Fixed receiving member 162 Through-hole 163 Nut 190 Bolt part 191 Stopper

Claims (5)

A tank device fixed to the toilet body,
An exterior tank,
An interior tank for storing wash water that is mounted in the exterior tank and cleans the toilet body;
A fixing portion for fixing the exterior tank to the toilet body,
The fixed portion is fixedly attached to the bottom surface of the interior tank, and the upper end of the fixed portion is inserted from the outside through a hole formed in the bottom surface of the exterior tank, and is fitted to the fixed receiver portion. A tank device, characterized in that a lower end is provided with a fixed main body portion fixed to the toilet bowl main body.   Further, by maintaining a predetermined distance between the bottom surface of the interior tank and the bottom surface of the exterior tank, the bottom surface of the stationary receiver portion is in contact with the bottom surface of the exterior tank. The tank apparatus according to claim 1, further comprising a gap holding unit that forms a gap between an upper surface and the bottom surface of the interior tank.   The tank apparatus according to claim 2, wherein the gap holding means is a leg portion provided on a bottom surface of the interior tank. The fixed main body portion has a bolt portion and a stopper portion fixed to the bolt portion,
The fixed receiving part has a mounting hole in which an upper end of the bolt part can be screwed,
The tank according to claim 2 or 3, wherein the stopper portion of the fixed main body portion is provided at a position where a gap is formed between an upper surface of the fixed main body portion and a bottom surface of the interior tank. apparatus.   A flush toilet provided with the tank device according to any one of claims 1 to 4.

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