JP2008240493A - Toilet bowl wash water tank device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet bowl wash water tank device unable to easily increase a wash water supply quantity to a toilet bowl more than a preset quantity. <P>SOLUTION: This toilet bowl wash water tank device has a wash water tank for storing wash water to be supplied to the toilet bowl and arranging a drain port in a bottom part for communicating with the toilet bowl, a drain valve for opening-closing the drain port, an operation part for pulling up and operating this drain valve, a connecting member for connecting this operation part to the drain valve, and a float installed on the connecting member in a state of inserting this connecting member and exhibiting buoyancy for maintaining the drain valve in a valve opening state in a state of sinking in the wash water. The connecting member is provided with an upper side storage part and a lower side storage part for regulating a moving range of the float on the connecting member. At least the lower side storage part has a lower side irreversible storage tool unremovable from the connecting member as long as the part is broken with physical irreversibility. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a toilet flushing water tank apparatus including a float that exhibits a buoyancy for maintaining a drain valve in a valve open state while being immersed in flush water.

  Conventionally, a washing water tank for storing washing water to be supplied to a toilet, a drain provided at the bottom of the washing water tank and communicating with a washing water supply path communicating with the toilet, and opening and closing the drain A drainage valve, an operating part for pulling up the drainage valve, a connecting member for connecting the operating part and the drainage valve, and the flushing water mounted on the connecting member in a state where the connecting member is inserted. There is a toilet flushing water tank apparatus provided with a float that exhibits buoyancy for maintaining the drain valve in a valve open state in a state of being immersed in the water.

  With such a configuration, when the operation unit is operated to raise the drain valve and open the drain port, cleaning water is supplied to the toilet bowl, and dirt in the bowl part of the toilet bowl can be discharged.

In this type of toilet flushing water tank device, by changing the mounting position of the float floating in the washing water at a predetermined distance from the drain valve, by adjusting the distance between the float and the drain valve, There is one that can arbitrarily adjust the supply amount from the wash water to the toilet (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 62-35081

  However, since the toilet flushing water tank apparatus described in Patent Document 1 can easily change the position of the float, for example, if the float is lowered to a lower position, the supply amount of flushing water is required. It will increase to the above and will wash water away.

  The object of the present invention is to provide a toilet flushing water tank apparatus that can solve the above-mentioned problems.

  (1) In order to achieve the above object, in the present invention, washing water to be supplied to a toilet is stored, a washing water tank having a drain opening communicating with the toilet bowl at the bottom, and opening and closing the drain opening. A drainage valve, an operation part for pulling up the drainage valve, a connection member for connecting the operation part and the drainage valve, and being attached to the connection member in a state where the connection member is inserted, and the washing water And a float that exhibits buoyancy for maintaining the drain valve in an open state in a state where the drain valve is immersed in the toilet flushing water tank apparatus, wherein the connecting member has a range of movement of the float on the connecting member. An upper retaining portion and a lower retaining portion to be regulated are provided, and at least the lower retaining portion has a physical irreversibility and includes a lower irreversible fastener that cannot be removed from the connecting member unless it is broken. It was and.

  (2) The present invention provides the toilet flushing water tank apparatus according to the above (1), wherein the upper clip has physical irreversibility and cannot be removed from the connecting member unless it is broken. It is characterized by comprising an upper reversible fastener having physical reversibility that can change the movement range of the float by being detachably attached to the connecting member.

  (3) The present invention provides the toilet flushing water tank apparatus according to the above (2), wherein the upper retaining portion includes the upper irreversible retaining device and the upper reversible retaining device, and the upper irreversible retaining device is attached to the float. The upper reversible fastener is attached between the upper irreversible fastener and the float.

  (4) The present invention provides the toilet flushing water tank apparatus according to any one of (1) to (3), wherein the lower retaining portion is attached to and detached from the lower irreversible fastener and the connecting member. A lower reversible fastener having physical reversibility that can change the movement range of the float by freely mounting, and the lower irreversible fastener is disposed separately from the float. The lower reversible fastener is attached between the lower irreversible fastener and the float.

  (5) The present invention provides the toilet flushing water tank apparatus according to the above (1) or (2), wherein a concave portion for inserting the connecting member is formed in a central portion of the float, and the lower side is formed in the concave portion. The irreversible fastener and / or the upper irreversible fastener are accommodated.

  (6) The present invention provides the toilet flushing water tank apparatus according to (5), wherein only the lower irreversible fastener is disposed in the recess, and the upper side is formed to have a larger diameter than the lower irreversible fastener. A reversible fastener is attached so as to contact the upper surface of the float.

  According to the present invention, the connecting member is provided with an upper retaining portion and a lower retaining portion that regulate the movement range of the float on the connecting member, at least the lower retaining portion has physical irreversibility, Since the lower irreversible fastener that cannot be removed from the connecting member unless it is broken is used, for example, the user can freely lower the float position and appropriately supply the wash water according to the toilet. Therefore, it is possible to prevent the washing water from flowing unnecessarily.

  Hereinafter, the present invention will be described through some embodiments with reference to the drawings. FIG. 1 is an explanatory diagram of a toilet flushing water tank device, and FIG. 2 is a schematic explanatory diagram showing a state of float arrangement in the toilet flushing water tank device. In the following embodiments, the same components will be described with the same reference numerals.

  As shown in FIG. 1, a toilet flushing water tank device 1 is installed on a toilet 2 and stores flush water 3 to be supplied to the toilet and has a drain port 12 communicating with the toilet 2 at the bottom. A provided wash water tank 10, a drain valve 13 for opening and closing the drain port 12, an operation unit 14 for pulling up the drain valve 13, and a connecting member 15 for connecting the operation unit 14 and the drain valve 13; The float 16 is mounted on the connecting member 15 in a state where the connecting member 15 is inserted, and exhibits a buoyancy for maintaining the drain valve 13 in an open state in a state where the drain valve 13 is immersed in the washing water 3; It has. Reference numeral 11 denotes a washing water supply path in which the bowl portion (not shown) of the toilet bowl 2 and the drain port 12 are connected in communication.

  Reference numeral 17 denotes an overflow pipe, and the drain valve 13 is pivotally connected to the base end of the overflow pipe 17. When the operation portion 14 is rotated, the connecting member 15 is pulled up in conjunction with this operation. The drain valve 13 connected to the tip of the connecting member 15 pivots upward about the pivot portion 13a to open the drain port 12, and the wash water 3 is supplied into the bowl portion (not shown) of the toilet bowl 2. Is done.

  The float 16 exhibits buoyancy when immersed in the wash water 3, and this buoyancy acts on the drain valve 13 via the connecting member 15. The buoyancy that the float 16 acts on the drain valve 13 is based on the force that the wash water 3 pressurizes the drain valve 13 based on the water pressure when the water level in the wash water tank 10 is at the full water level FWL. Is set to be smaller. Therefore, the drain valve 13 at the time of full water can maintain a closed state with respect to the drain port 12 even if the buoyancy of the float 16 is acting.

  When the drain valve 13 is opened and the drain port 12 is opened, the wash water 3 is supplied to the toilet bowl 2. When the water level in the washing water tank 10 decreases and reaches the water stop line DWL of the float 16, the buoyancy of the float 16 is reduced, and the drain valve 13 is automatically closed by its own weight and the suction force from the drain port 12. The supply of the washing water 3 to the toilet 2 is stopped. Therefore, the amount of water supplied to the toilet 2 is defined as the amount from the water level FWL when the washing water tank 10 is full to the water stop line DWL of the float 16.

(First embodiment)
In such a configuration, the toilet flushing water tank apparatus 1 according to the first embodiment regulates the movement range of the float 16 on the connecting member 15 to the connecting member 15 made of a ball chain, as shown in FIG. An upper retaining part 4 and a lower retaining part 5 are provided, and at least the lower retaining part 5 has physical irreversibility and cannot be removed from the connecting member 15 unless it is broken. 50.

  In the present embodiment, the lower clip 5 only needs to include the lower irreversible clip 50, and any clip may be used for the upper clip 4.

  For example, the upper retaining portion 4 is made of the same member as the lower irreversible retainer 50, has a physical irreversibility, and cannot be removed from the connecting member 15 unless it is broken, or the connecting member 15. It may be configured to include any one of the upper reversible fasteners 41 having physical reversibility that allows the movement range of the float 16 to be changed by detachably attaching to the upper irreversible fastener 40 and the upper reversible fastener 40. The structure provided with both the fasteners 41 may be sufficient.

Here, “having physical irreversibility” refers to the property that it cannot be easily returned to its original state when it is deformed by external manipulation, and the lower irreversible fastener 50 is, for example, cut It is a fastener that cannot be removed from the connecting member 15 unless it is broken by being melted or plastically deformed.
That is, the “destruction” here is a concept that includes cutting and melting, and applying a force to a plastic material so as to be plastically deformed so that it can be detached from the connecting member 15.
Therefore, for example, it is possible to form the lower irreversible fastener 50 from a plastic material, and to remove the irreversible fastener 50 from the connecting member 15 by plastic deformation.
However, once it is plastically deformed and removed from the connecting member 15, even if it is deformed by applying a force to return it to its original shape and reused as a fastener again, it will be in exactly the same state as before it was removed. Reuse is not desirable because it is never reproduced.
In addition, although it does not specifically limit as a form of the lower irreversible fastener 50 or the upper irreversible fastener 40, It is desirable that it is as light as possible so that the function as the float of the float 16 may not be impaired.

  On the other hand, the upper reversible fastener 41 can be easily attached to and detached from the connecting member 15 with respect to the lower irreversible fastener 50 and the upper irreversible fastener 40 described above, and can be used again after being removed. It is a simple fastener. Moreover, the form etc. are not limited at all like the lower irreversible fastener 50 and the upper irreversible fastener 40. In this case as well, it is desirable that the weight is as light as possible for the same reason as in the case of the lower irreversible fastener 50 and the upper irreversible fastener 40.

As described above, if at least the lower clip 5 includes the lower irreversible clip 50 described above, the float 16 moves downward on the connecting member 15 from the position of the lower irreversible clip 50. Is completely prohibited.
Therefore, unless the lower irreversible fastener 50 is broken, the float 16 cannot be moved further downward. That is, since the water stop line DWL of the float 16 cannot be lowered, the supply amount of the wash water 3 to the toilet 2 cannot be changed to a set amount or more, and the wash water 3 is flushed to the toilet 2. There is no fear of it.

  For example, when a water-saving toilet bowl 2 in which the amount of wash water 3 used is set to less than 5 liters per wash, the position of the float 16 is conventionally determined by the user or installer, etc. It was possible to flow 5 liters or more of flushing water 3 to the toilet 2 with appropriate lowering, but according to the present embodiment, by using the lower irreversible retainer 50, 5 liters or more of flushing water 3 There is no risk of being easily modified so that it can be used.

As an example of such a configuration, for example, as shown in FIG. 2A, the upper retaining portion 4 and the lower retaining portion 5 can be provided so as to contact the upper surface and the lower surface of the float 16.
According to this example, since the attachment position of the float 16 to the connecting member 15 is defined at one point, the float 16 does not move up and down, and the behavior in the cleaning water 3 is also stabilized. Therefore, when the operation part 14 is operated, the float 16 does not dance, and the problem that the float 16 and the connecting member 15 are entangled can be prevented.

In this example, the lower retaining portion 5 is composed of the lower irreversible retaining device 50, but the upper retaining portion 4 is composed of the upper reversible retaining device 41. In this example, the lower irreversible fastener 50 is welded and fixed to the connecting member 15 so that it cannot be removed from the connecting member 15 unless it is cut and broken. On the other hand, the upper reversible fastener 41 forms a slit-like cutout portion in the radial direction from the insertion portion through which the connecting member 15 is inserted, and is attached to and detached from the connecting member 15 through this cutout portion without using a tool or the like. It is free.
Therefore, for example, as shown in FIG. 2B, it is possible to remove this and change the position upward.
That is, according to the example shown in FIG. 2 (b), the wash water 3 cannot be allowed to flow to the toilet 2 beyond the predetermined amount, but the supply amount of the wash water 3 is arbitrarily set as long as it is less than the prescribed amount It is possible to reset.

  In addition, the present embodiment can be modified to the form shown in FIGS. 2 (c) and 2 (d).

  In these components, the lower clip 5 includes a lower irreversible clip 50 and the upper clip 4 includes an upper irreversible clip 40.

  The example shown in FIG. 2 (c) is composed of an upper irreversible retainer 40 and a lower irreversible retainer 50, both of which are composed of members having physical irreversibility. The upper irreversible fastener 40 is brought into contact with the upper surface of the float 16, and the lower irreversible fastener 50 is brought into contact with the lower surface of the float 16.

  Therefore, according to this example, the attachment position of the float 16 to the connecting member 15 is fixed at one point, and the supply amount of the wash water 3 flowing to the toilet 2 is fixed to a preset amount. become. That is, since adjustment which moves the float 16 upward and raises DWL is also prohibited, there is no possibility of causing poor cleaning because the amount of cleaning water supplied to the toilet 2 is too small. Similarly to the example shown in FIG. 2A, the float 16 does not move up and down, the behavior in the washing water 3 becomes stable, and the float 16 dances even when the operation unit 14 is operated. Therefore, the connection member 15 is not tangled.

In the example shown in FIG. 2 (d), the upper retaining portion 4 is composed of an upper irreversible retaining device 40, and the lower retaining portion 5 is composed of a lower irreversible retaining device 50.
That is, as shown in FIG. 2 (e), the distance L between the upper irreversible fastener 40 and the lower irreversible fastener 50 is made larger than the height H of the float 16, and the float 16 can be moved to some extent. Here, in addition to the upper irreversible fastener 40, the above-described upper reversible fastener 41 is used to hold the float 16 at an appropriate position between the intervals L.
Therefore, according to this example, the supply amount of the wash water 3 to the toilet 2 is not allowed to be adjusted so that the supply amount exceeds the set supply amount or the supply amount is reduced so as to cause a cleaning failure. The upper limit and the lower limit of the range in which the performance can be maintained will be defined, and within this range, the supply amount can be set arbitrarily.

  Thus, in the example shown in FIG. 2 (d), the upper clip 4 is composed of the upper irreversible clip 40 and the upper reversible clip 41, and the upper irreversible clip 40 is arranged separately from the float 16. The upper reversible fastener 41 is attached between the upper irreversible fastener 40 and the float 16, and the upper reversible fastener 41 is used in addition to the upper irreversible fastener 40. The person can freely set the supply amount within a range in which the cleaning performance can be maintained.

  As shown in FIG. 3, as an example of this embodiment, the upper clip 4 includes an upper irreversible clip 40 and an upper reversible clip 41, and the upper irreversible clip 40 is separated from the float 16. The upper reversible fastener 41 is mounted between the upper irreversible fastener 40 and the float 16, and the lower irreversible fastener 50 and the connecting member 15 are attached to and detached from the lower retaining portion. The lower reversible fastener 51 having a physically reversible property that allows the movement range of the float 16 to be changed by being freely attached, and the lower irreversible fastener 50 is disposed separately from the float 16. In addition, a lower reversible fastener 51 may be attached between the lower irreversible fastener 50 and the float 16.

  In such a configuration, the water stop line DWL of the float 16 does not deviate from within a predetermined range (interval L between the upper irreversible retaining device 40 and the lower irreversible retaining device 50). The upper and lower limits of the supply amount will be regulated. That is, the user can freely set the supply amount of the wash water 3 to the toilet 2 as long as the wash performance can be maintained. Moreover, since the upper reversible fastener 41 and the lower reversible fastener 51 are attached so as to contact the upper surface and the lower surface of the float 16, there is almost no freedom in moving the float 16 up and down. ) And (c), the operation of the operation unit 14 was performed without the unstable behavior of the float 16 dancing, as the behavior of the float 16 is stable in the wash water 3 as in the example shown in FIG. In this case, it is possible to prevent such a problem that the float 16 and the connecting member 15 are entangled.

(Second Embodiment)
Next, 2nd Embodiment of the toilet bowl washing water tank apparatus which concerns on this invention is described with reference to FIG.

  FIG. 4 is a schematic explanatory view showing the arrangement state of the float in the toilet flushing water tank apparatus according to the second embodiment, which is the same as in the first embodiment, but the float according to the present embodiment. 16 has a configuration in which a central hole portion 16a as a concave portion through which the connecting member 15 is inserted is formed in the central portion.

  In this embodiment, the difference from the previous embodiment is that the lower irreversible fastener 50 and / or the upper irreversible fastener 40 are accommodated in the central hole portion 16a.

  That is, as shown in FIG. 4, the float 16 includes a disc portion 16d having an insertion hole 16c through which the connecting member 15 is inserted, and a floating ring-shaped annular ring integrally connected around the disc portion 16d. The float main body 16b is composed of a portion, and the insertion hole is smaller than the diameter of the central hole portion 16a in the central hole portion 16a formed from the inner wall of the float main body 16b where the disc portion 16d is located. A lower irreversible fastener 50 and an upper irreversible fastener 40 having a larger diameter than 16c are arranged.

  Further, in the example shown in FIG. 4, even when the lower irreversible fastener 50 and the upper irreversible fastener 40 are not accommodated in the central hole portion 16a, they are attached in contact with the upper surface or the lower surface of the float 16, The float 16 is attached to the connecting member 15 at a single point, and the float 16 does not move up and down. Therefore, when the operation unit 14 is operated, the float 16 does not dance, so that it is possible to prevent a problem that the float 16 and the connecting member 15 are entangled, and the center hole 16a. Since the fastener housed and disposed inside is in a state in which it is difficult to apply a hand from the outside, even the upper irreversible retainer 40 and the lower irreversible retainer 50 are even difficult to break. Changes can be extremely difficult.

  4A shows an example in which the upper irreversible fastener 40 and the lower irreversible fastener 50 are both housed in the central hole 16a, and FIG. 4B shows only the lower irreversible fastener 50 in the center. The example accommodated in the hole 16a is shown. In these examples, since at least the lower irreversible fastener 50 is in a state accommodated in the central hole portion 16a, it is extremely difficult to move the float 16 downward from the current position. The amount of water 3 supplied to the toilet 2 cannot be increased.

  On the other hand, FIG.4 (c) has shown the example which accommodated only the upper irreversible fastener 40 in the center hole 16a. Also in this case, since the lower retaining portion 5 is composed of the lower irreversible retainer 50, it is impossible to move the float 16 downward unless it is broken. Since the float 16 is housed and disposed in the hole 16a, it is extremely difficult to move the float 16 upward from the current position, and the supply amount of the pre-specified wash water 3 to the toilet 2 is reduced. I can't.

  By the way, in each example shown in FIG. 4, even if it is the fastener which is not accommodated in the center hole part 16a, it has a physical irreversibility (the upper irreversible fastener 40 or the lower irreversible fastener 50). However, the fastener that is not accommodated in the central hole portion 16a may be a reversible fastener.

  As an example of such an embodiment, only the lower irreversible fastener 50 is disposed in the central hole portion 16 a, and the upper reversible fastener 41 having a larger diameter than the lower irreversible fastener 50 is provided on the float 16. The case where it is attached so as to be in contact with the upper surface will be described more specifically with reference to FIGS.

  FIG. 5 is an explanatory view of the flush water tank 10 in the toilet flushing water tank apparatus 1 in a longitudinal sectional view, and FIG. 6 is an explanatory view in longitudinal section showing a mounting structure of a float 16 that is a main part of the toilet flushing water tank apparatus 1. FIG. 7 is a perspective view of the mounting structure of the float 16. Since the cleaning water tank 10 and the float 16 are basically the same as the configuration described in FIG. 1, the same components as those described in FIG. 1 are denoted by the same reference numerals.

  The washing water tank 10 shown in FIG. 5 is formed in a box shape whose upper opening is covered with a lid 10b. Here, the supply amount of the washing water 3 to the toilet bowl 2 (see FIG. 1) is 5 liters. It is set.

  The washing water tank 10 includes a water supply device 6 that supplies water into the tank body, and a supply device 7 that discharges and supplies the water stored in the washing water tank 10 toward the toilet. . The wash water tank 10 stores water supplied from a water supply source (not shown) by the water supply device 6 and supplies 5 liters of stored water to the toilet 2 as wash water by the supply device 7. can do.

  The water supply device 6 is erected on the left side in the cleaning water tank 10, and has a water supply pipe 60 whose lower end is connected to a water supply source and a water supply pipe 60 so that water discharge / stop water toward the cleaning water tank 10 can be switched. A water supply valve 61 provided at the upper end and a float unit 62 that performs a water discharge / stop water switching operation of the water supply valve 61 by a vertical movement in accordance with the fluctuation of the water level in the cleaning water tank 10 are provided.

  The supply device 7 includes a drain valve 13 that opens and closes the drain port 12, an operation unit 14 that opens and closes the drain valve 13 by an external operation, and a connecting member 15 that connects the operation unit 14 and the drain valve 13. The float 16 is attached to the connection member 15 in a state where the connection member 15 is inserted, and exhibits a buoyancy for maintaining the drain valve 13 in the open state in the state where the drain valve 13 is immersed in the washing water 3. It is configured (see FIG. 1).

  One end of a rotating shaft 71 is connected to the operation lever 14a serving as the operation unit 14, and the other end extends substantially horizontally in the cleaning water tank 10. That is, the rotating shaft 71 is made rotatable by operating the operating lever 14a, and the connecting member 15 comprising a chain body in which a plurality of annular members 15a are connected from the other end of the rotating shaft 71 is suspended to operate the operating lever 14a. Thus, the drain valve 13 connected to the lower end of the connecting member 15 is pulled up so that the drain port 12 can be opened.

  Here, the connecting member 15 is not a ball chain, but a chain body in which a plurality of annular members 15a are connected in a rosary shape. However, the connecting member 15 is not limited to these, and a string-like shape is used. Anything is acceptable. Also, the material is not particularly limited, and it is more preferable if it is light and rich in water resistance.

  In FIG. 5, reference numeral 12 a denotes a drain guide tube, which is fitted to the inner peripheral surface of the drain port 12 provided at the center of the bottom 10 a of the wash water tank 10, with the upper end inside the wash water tank 10 and the outside. The lower end protrudes to guide the drainage of the cleaning water 3, and the upper end surface of the drainage guide cylinder 12 a functions as a valve seat that receives the opening / closing action of the drainage valve 13.

In this configuration, as described above with reference to FIG. 1, the float 16 is attached above the drain valve 13 while maintaining a predetermined distance.
As shown in FIGS. 6 and 7, the attachment structure of the float 16 to the connecting member 15 is such that only the lower irreversible fastener 50 is disposed in the central hole portion 16 a, and the lower irreversible fastener 50. The upper reversible fastener 41 having a larger diameter is attached so as to contact the upper surface of the float 16.

Here, the specific structure of the lower irreversible fastener 50 and the upper reversible fastener 41 in this embodiment is demonstrated.
First, the lower irreversible fastener 50 housed and disposed in the central hole portion 16a of the float 16 will be described. The lower irreversible fastener 50 is cut when bound at one end as shown in FIGS. The band is formed by using a binding band (so-called “insulok (trade name)”) that cannot be unbound unless it is unbound.

  That is, the tip of the band portion 50a having a predetermined length in the binding band is inserted into the lock portion 50b through the ring of the annular member 15a of the connecting member 15, and after the band portion 50a is sufficiently tightened, the band portion 50a protrudes from the lock portion 50b. This is a cut-out part.

  By using such a binding band, it is possible to form the lower irreversible fastener 50 very easily, but in order to use such a binding band, the width of the annular member 15a of the chain body constituting the connecting member 15 Is set according to the insertion hole 16c formed in the disc portion 16d of the float 16. That is, there is no hindrance for insertion through the insertion hole 16c, and when the lower irreversible fastener 50 is attached, the width is such that the lower irreversible fastener 50 never comes out of the insertion hole 16c.

  On the other hand, as shown in FIGS. 6 and 7, the upper reversible fastener 41 attached so as to be in contact with the upper surface of the float 16 does not move the float 16 upward along the connecting member 15. It is only necessary to have a function as a locking member, and a slit-like cutout 41b is formed from a part of the periphery of the fastener body 41a formed in a disc shape toward the center, and the cutout 41b is connected to the cutout 41b. The annular member 15a of the member 15 can be taken in and out. Reference numeral 41c denotes a locking portion having a substantially U-shape in a cross-sectional view projecting upward from the center of the fastener body 41a, and the annular member 15a of the connecting member 15 is sandwiched in the locking portion 41c.

  FIG. 8 is an explanatory view showing another specific example of the lower irreversible fastener 50. Hereinafter, with reference to FIG. 8, the specific example of the lower irreversible fastener 50 which consists of structures other than the binding band mentioned above is demonstrated.

In the example shown in FIG. 8A, as the lower irreversible fastener 50, for example, an aluminum cylinder 50c is used. Reference numeral 50d denotes a caulking portion.
That is, the lower irreversible fastener 50 is one of the annular members 15a that are connected to each other by alternately changing the direction by approximately 90 degrees by inserting the connecting member 15 into the cylindrical body 50c and caulking the center thereof. Is attached in a state of being clamped by the caulking portion 50d. Therefore, the lower irreversible fastener 50 cannot be moved from the attached position unless it is destroyed, and the float 16 whose downward movement is restricted by the lower irreversible fastener 50 is also It is impossible to move down.

  Moreover, when using such a cylinder 50c as the lower irreversible fastener 50, instead of caulking, the inside of the cylinder 50c is filled with an adhesive, and the cylinder 50c is integrally fixed to the connecting member 15. Also good.

  In FIG. 8B, the lower irreversible fastener 50 is formed by applying a so-called “hell tenon”, a male part 50f having a fishhook-like convex part 50e, and the convex part The female part 50f ′ having the concave part 50g for receiving the part 50e is paired.

  Once the male part 50f and the female part 50f 'are joined, the convex part 50e does not come out of the concave part 50g and cannot be removed from the connecting member 15 unless it is also destroyed. In some cases, the male part 50f and the female part 50f ′ can be forcibly separated and combined with each other again. In such a case, the convex part 50e of the male part 50f is deformed, and the desired fastener is obtained. Cannot function.

  In the state shown in FIG. 8 (c), the lower irreversible fastener 50 is long enough to be interposed between the float 16 and the drain valve 13 with the connecting member 15 inserted through the float 16. The sleeve 50h is formed. The sleeve 50h can be made of metal or synthetic resin. Also in this case, the sleeve 50 h can be filled with an adhesive, and the sleeve 50 h can be integrally fixed to the connecting member 15.

FIGS. 8D and 8E show a part of the connecting member 15 also used as the lower irreversible fastener 50.
That is, in FIG. 8D, one of the annular members 15 a constituting the connecting member 15 is a large annular member 15 b having a larger diameter than the insertion hole 16 c of the float 16.
In the example shown in FIG. 8 (d), when the annular member 15a is formed in an annular shape by joining ends of a linear metal material having plasticity, for example, the large annular member 15b The formed lower irreversible fastener 50 is plastically deformed (broken) using a tool such as pliers to separate the abutted ends from each other and remove it from the other annular member 15a connected thereto. Is possible. However, once it is plastically deformed and removed from the connecting member 15, even if it is deformed by applying a force so that the ends abut against each other again, it will not be reproduced in exactly the same state as before it was removed. The strength as a fastener is also lower than before removal.

  FIG. 8E shows an example in which a ball chain is used as the connecting member 15, and a large ball in which one of the balls constituting the ball chain is larger in diameter than the insertion hole 16 c of the float 16. The body 15c is used.

  As described above, according to the present embodiment, since the float 16 is attached to the connecting member 15 by the upper retaining portion 4 and the lower retaining portion 5, the operation lever 14a is operated. Therefore, when the drain valve 13 is pulled up, there is no possibility that the float 16 will dance and get entangled with the connecting member 15, and when the drain valve 13 is opened and the drain port 12 is opened, the washing water 3 is filled with water. A prescribed amount (here, 5 liters) from the water level FWL to the water stop line DWL of the float 16 is supplied to the toilet 2. And since the lower side stop part 5 which controls the movement of the float 16 is comprised by the lower irreversible fastener 50, the water stop line DWL of the float 16 cannot be lowered more than the present, and the washing water 3 The supply amount can be made unchanged. Moreover, since the lower irreversible fastener 50 is disposed in a state of being accommodated in the central hole portion 16a formed in the float 16, it is difficult to touch the lower irreversible fastener 50 from the outside. It has become increasingly difficult to increase the amount of supply to the toilet bowl 2 of 3 from a predetermined amount.

  Therefore, for example, in the case of assuming a case where the amount of flush water used in a flush toilet is legally restricted in a national or local government, etc., by using the toilet flush water tank device 1 according to this embodiment, It is possible to prevent illegal activities such as illegally changing the mounting position of the float 16.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to each embodiment mentioned above, In the range of the summary of this invention described in the claim, various deformation | transformation are carried out.・ Change is possible.

  The effects described in the present embodiment are only the most preferable effects resulting from the present invention, and the effects according to the present invention are not limited to those described in the embodiments.

It is explanatory drawing of a toilet bowl washing water tank apparatus. It is a schematic explanatory drawing which shows the arrangement | positioning state of the float which concerns on 1st Embodiment in the toilet bowl washing water tank apparatus. It is explanatory drawing which shows the modification of the arrangement | positioning state of the float which concerns on the 1st Embodiment. It is a schematic explanatory drawing which shows the arrangement | positioning state of the float in the toilet bowl washing water tank apparatus which concerns on 2nd Embodiment. It is explanatory drawing by the longitudinal cross-sectional view of the washing water tank which concerns on the 2nd Embodiment. It is explanatory drawing by the longitudinal cross-sectional view which shows the attachment structure of the float used as the principal part of the toilet bowl washing water tank apparatus in the 2nd Embodiment. It is a perspective view of the attachment structure of the float. It is explanatory drawing which shows the modification of the lower irreversible fastener in the same float mounting structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Toilet washing water tank apparatus 2 Toilet bowl 3 Washing water 4 Upper side retaining part 5 Lower side retaining part 10 Washing water tank 12 Drain port 13 Drain valve 14 Operation part 15 Connecting member 16 Float 40 Upper irreversible retaining element 41 Upper reversible retaining element 50 Below Side irreversible fastener 51 Lower reversible fastener

Claims (6)

Wash water for supplying to the toilet bowl, and a wash water tank provided at the bottom with a drain opening communicating with the toilet bowl;
A drain valve for opening and closing the drain port;
An operation unit for pulling up the drain valve;
A connecting member for connecting the operation portion and the drain valve;
A float that is attached to the connecting member in a state where the connecting member is inserted, and that exhibits buoyancy for maintaining the drain valve in an open state in a state of being immersed in the washing water,
In the toilet flushing water tank device with
The connecting member is provided with an upper retaining part and a lower retaining part that regulate the movement range of the float on the connecting member, and at least the lower retaining part has physical irreversibility and is not broken unless it is destroyed. A toilet flushing water tank apparatus comprising a lower irreversible fastener that cannot be removed from a connecting member. The upper clasp is
Physically irreversible and physically movable on the upper irreversible fastener and / or detachably attached to the connecting member that cannot be removed from the connecting member unless it is broken. The toilet flushing water tank apparatus according to claim 1, comprising an upper reversible fastener having excellent reversibility. The upper clasp is
The upper irreversible fastener and the upper reversible fastener, wherein the upper irreversible fastener is disposed separately from the float, and the upper reversible fastener is between the upper irreversible fastener and the float. The toilet bowl washing water tank apparatus according to claim 2, wherein The lower clip is
The lower irreversible fastener and the lower reversible fastener having physical reversibility that can change the range of movement of the float by being detachably attached to the connecting member. The fastener according to claim 1, wherein the fastener is disposed separately from the float, and the lower reversible fastener is attached between the lower irreversible fastener and the float. The toilet bowl washing water tank apparatus of any one of Claims.   3. A concave portion through which the connecting member is inserted is formed in a central portion of the float, and the lower irreversible fastener and / or the upper irreversible fastener are accommodated in the concave portion. Toilet bowl cleaning water tank device as described in 1.   Only the lower irreversible fastener is disposed in the recess, and the upper reversible fastener formed with a diameter larger than that of the lower irreversible fastener is attached so as to contact the upper surface of the float. The toilet bowl washing water tank apparatus according to claim 5.

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