JP3736488B2 - Watertight structure of a low-tank integrated warm water flush toilet seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a watertight structure of a low tank integrated warm water cleaning toilet seat, and more particularly to a watertight structure of a low tank integrated warm water cleaning toilet seat having a structure tightly coupled to a flush toilet.
[0002]
[Prior art]
In general, commodities generally referred to as flush toilets are combined with a low tank, toilet seat, and toilet bowl to form one product form. Furthermore, in the toilet seat, by selecting a warm water washing toilet seat with a hot water washing function, it is possible to add more toilets more comfortably, so that consumers' awareness increases and the penetration rate exceeds 40%. . In the warm water flush toilet seat, the low tank integrated type is increasing, and the choice of consumers is expanding more and more.
[0003]
Here, a low-tank integrated warm water cleaning toilet seat is a product in which a storage part called a general low tank and a functional part such as a local cleaning nozzle are covered with a single outer shell case. The difference is that it is a product with a single design for low tank, toilet seat and toilet.
[0004]
The low-tank-integrated warm water flush toilet seat has a structure that is different from the structure of a normal low tank in that the low tank has a built-in low tank. In general row tanks, a cylindrical rubber packing is sandwiched between the joints with the toilet bowl, so that water does not leak to the outside during drainage from the row tank. In addition, this part is a part where rubber packing is installed at the construction site, so that the rubber packing is provided with a predetermined seal so that the sealing performance is maintained even if it is handled somewhat rough or the fixing strength of the low tank varies. Thickness and elasticity.
[0005]
However, in the low tank integrated warm water washing toilet seat 12, as shown in FIG. 10, a lower case 3 called a platform exists between the low tank 2 and the toilet bowl 1. The lower case 3 and the upper cover 11 constitute an outer shell case for integrally covering the low tank 2 and functional parts such as a local cleaning nozzle. As shown in FIG. 11, the seal part of the lower case 3 has two places (the seal part 10 between the low tank 2 and the lower case 3 and the seal part 30 between the lower case 3 and the toilet 1). Among these, since the seal part 30 between the lower case 3 and the toilet bowl 1 is an installation part in a construction site, the rubber packing 20 is conventionally used as a sealing material. However, the space between the lower case 3 and the low tank 2 is a place to be shipped after being sealed on the factory line. I use it. Reference numeral 24 in FIG. 11 denotes a tightening nut.
[0006]
[Problems to be solved by the invention]
By the way, the order of assembly at the factory of the product is to sequentially attach each part (tight packing 4, hot water cleaning device such as a local cleaning nozzle, low tank 2, etc.) to the lower case 3 (platform), At this time, the flat tightly packed packing 4 is a component to be attached first. The conventional problem is that it is not possible to confirm whether or not the tightly packed packing 4 is assembled after all the components are assembled. The tightly packed packing 4 serves to prevent water from leaking from the gap between the bottom surface of the low tank 2 and the lower case 3 and flowing out to the functional component side, and it is important to confirm the presence.
[0007]
The present invention was invented in view of the problems of the conventional example described above, and the object of the present invention is to easily confirm the presence or absence of tight packing even after all the parts are assembled to the lower case. The object is to provide a watertight structure of a low-tank integrated warm water cleaning toilet seat.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, a low tank 2 provided on the upper surface of the rear part of the toilet 1 and functional parts such as a local washing nozzle are placed on one lower case 3 and a lower part. The case 3 is provided with an opening 17 into which the drainage cylinder on the bottom surface of the low tank 2 is fitted, and a tightly packed packing 4 is disposed on the periphery of the opening 17 so as to seal a gap between the bottom surface of the low tank 2 and the lower case 3. In the watertight structure of the low tank integrated warm water washing toilet seat, the lower case 3 is provided with a confirmation window 5 for confirming the presence or absence of the tightly-packed packing 4, and thus the lower case 3 In the middle of (or after) the assembly of each part, the presence of the tightly packed packing 4 can be seen at a glance by looking through the confirmation window 5 provided in the lower case 3. In confirmation It becomes so that.
[0009]
In addition, it is preferable that the protruding piece 6 protrudes outside the tightly-packed packing 4 and that a confirmation window 5 is provided at a position facing the protruding piece 6 of the lower case 3. 6, the confirmation window 5 can be provided so that the confirmation window 5 is not positioned at the seal portion 10 between the tightly packed packing 4 and the lower case 3. It will not be damaged.
[0010]
Further, it is preferable that a packing convex portion 7 that can be fitted into the confirmation window 5 is provided on the tightly packed packing 4. In this case, when the tightly packed packing 4 is assembled, the packing convex portion 7 is fitted into the confirmation window 5. As a result, the tightly-packed packing 4 can always be disposed at a regular position, and the displacement of the tightly-packed packing 4 can be prevented, and the assembling work is facilitated, and the packing convex portion 7 is fitted to the confirmation window 5. The water stoppage of the confirmation window 5 can be improved.
[0011]
Further, it is preferable that the boss 8 is erected on the lower case 3 and the boss fitting hole 9 into which the boss 8 is fitted is provided in the tight packing 4, and in this case, the boss 8 is connected to the boss fitting hole of the tight packing 4. 9, it is possible to improve the positioning accuracy of the tightly packed packing 4, and to prevent the tightly packed packing 4 from being displaced at a portion other than the seal portion 10 between the tightly packed packing 4 and the lower case 3. It is possible to prevent the sealing performance between the tightly packed packing 4 and the lower case 3 from being affected.
[0012]
Further, the boss 8 is preferably erected at a position other than the seal portion 10 with the tight packing 4 of the lower case 3. In this case, the tight packing by the boss 8 is maintained while keeping the water blocking property of the confirmation window 5 good. 4 positioning accuracy can be improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0014]
As shown in FIG. 1, a low tank 2 provided on the rear upper surface of the toilet 1 and a functional component (not shown) such as a local cleaning nozzle are placed on one lower case 3 (platform). An upper cover 11 (FIG. 10) that covers the low tank 2 and the functional parts from above is placed on the outer periphery of the lower case 3, and the lower tank 3 and the functional parts are connected to the lower case 3 and the upper cover 11. An outer shell case for covering integrally is configured. As shown in FIGS. 4 and 5, a plurality of screw holes 15 for attaching the upper cover 11 are provided on the outer peripheral portion of the lower case 3, and the bottom surface of the low tank 2 is provided at the center of the lower case 3. An opening 17 for fitting the cleaning valve 16 protruding from the opening 17 is provided, and an annular flat tightly packed packing 4 is placed on the periphery of the opening 17, and the lower case 3 is placed on both sides of the tightly packed packing 4. Is provided with a bolt hole 19 for fixing to the toilet 1. A front area A of the opening 17 is an area A in which a local cleaning nozzle for hot water cleaning, a hot water tank, a drying fan, a solenoid valve, and the like (not shown) are installed. In FIG. 2, reference numeral 50 denotes an arrangement portion for a local cleaning nozzle and the like, and 51 denotes an arrangement portion for the hot air duct.
[0015]
Here, the seal part of the lower case 3 has two places (the seal part 10 between the low tank 2 and the lower case 3 and the seal part 30 between the lower case 3 and the toilet 1). The seal portion 30 between the case 3 and the toilet 1 is an assembly location at a construction site, and is sealed with a rubber packing 20 as shown in FIG. Further, the bolt 21 protruding from the bottom surface of the low tank 2 is inserted from the bolt hole 19 of the lower case 3 into the opening 22 provided on the upper surface of the rear portion of the toilet 1 and fastened from below with the nut 23, so that the low tank 2 is It is designed to be mounted on the toilet 1 together with the lower case 3. In FIG. 1, 31 is a drain hole leading to the rim of the toilet 1, 24 in FIG. 2 is a tightening nut screwed into the drain cylinder 16a of the washing valve 16, and 35 is a sliding sheet such as a washer.
[0016]
On the other hand, the seal portion 10 between the lower case 3 and the low tank 2 is a place to be shipped after being sealed on the factory line. Packing 4 is used. This tightly packed packing 4 is interposed in the gap between the bottom surface of the low tank 2 and the lower case 3, and the flow of water W that has entered the opening 17 of the lower case 3 from the drain cylinder 16a as shown by the arrow in FIG. It works to waterproof the functional parts by damming it at the periphery.
[0017]
Here, a confirmation window 5 for confirming the presence or absence of the tight packing 4 is provided in a part of the lower case 3. As shown in FIGS. 1, 2, and 3, the position of the confirmation window 5 is such that the tightly-packed packing 4 immediately closes when the inspection window 5 is viewed from below the lower case 3 (opposite to the low tank 2 side). It is set at a position directly below the tightly packed packing 4 so that it can be seen. The number of confirmation windows 5 is one so as not to impair the sealing performance between the tightly packed packing 4 and the lower case 3. Further, it is desirable that the size of the confirmation window 5 is smaller than the width dimension of the tightly packed packing 4 so that the sealing performance is not impaired. The shape of the confirmation window 5 is not particularly limited, and may be circular or square.
[0018]
Therefore, when the low tank integrated warm water cleaning toilet seat 12 (FIG. 10) having a structure tightly coupled with the flush toilet is produced in the factory, all the parts are attached to the lower case 3 in order. After the assembly, the presence of the tightly packed packing 4 can be seen at a glance by looking into the confirmation window 5 from the lower side of the lower case 3 (on the opposite side of the low tank 2 side). Can be confirmed. Therefore, it is possible to easily check forgetting to install the tightly packed packing 4 which is incorporated in the gap between the bottom surface of the low tank 2 and the lower case 3 and plays an important role in waterproofing the functional parts. Can reliably increase the reliability.
[0019]
FIG. 6 shows an example in which the protruding piece 6 is protruded to the outside of the tightly packed packing 4 and the confirmation window 5 is provided at a position facing the protruding piece 6 of the lower case 3. The tightly-packed structure of the tightly-packed packing 4 and the lower case 3 with the confirmation window 5 is the same as that of the embodiment of FIG. In this example, the protruding piece 6 is projected in a bellows shape toward the outside of the tightly packed packing 4. The protruding direction may be inside the tightly packed packing 4. Accordingly, by providing the confirmation window 5 outside the tight packing 4, the confirmation window 5 is not positioned at the seal part 10 between the tight packing 4 and the lower case 3, thereby confirming the waterproofness of the seal part 10. Without being damaged by the window 5, the water tightness of the functional components such as the local cleaning nozzle can be further improved. In addition, since the protruding piece 6 is also in close contact with the lower case 3, there is an advantage that the water tightness can be further improved by increasing the sealing area between the lower case 3 and the tightly packed packing 4.
[0020]
FIG. 7 shows an example of a case where a packing convex portion 7 that can be fitted into the confirmation window 5 is provided on the tightly packed packing 4. The tightly-packed structure of the tightly-packed packing 4 and the lower case 3 with the confirmation window 5 is the same as that of the embodiment of FIG. Incidentally, it is necessary to carefully perform the assembly of the tightly packed packing 4 so that the tightly packed packing 4 is not misaligned. In this example, when assembling the tightly packed packing 4, as shown in FIG. 7B, the tightly packed packing 4 can always be disposed at a normal position by fitting the packing convex portion 7 to the confirmation window 5. Since the displacement of the tightly packed packing 4 can be prevented, the water tightness is further improved. Moreover, since the tightly packed packing 4 does not have to be carefully installed as in the prior art, the assembling work is facilitated. Further, by closing the confirmation window 5 with the packing convex part 7, it is possible to prevent water from entering from the confirmation window 5, and to ensure sufficient water tightness of functional parts such as a local cleaning nozzle, and the packing convex part 7 is confirmed. By entering the window 5, there is an advantage that the presence of the tightly packed packing 4 becomes easier to understand and easier to confirm. In addition, the number of the packing convex parts 7 is not restricted to one, A plurality may be sufficient. An example is shown in FIG. In FIG. 8, the packing projections 7 are projected from three locations on the outer periphery of the tight packing 4, and if one of the packing projections 7 is fitted in the confirmation window 5, the tight packing 4 Positioning can be performed more reliably.
[0021]
FIG. 9 shows an example in which the boss 8 is erected on the lower case 3 and the boss fitting hole 9 into which the boss 8 is fitted is provided in the tightly packed packing 4. The tightly-packed structure of the tightly-packed packing 4 and the lower case 3 with the confirmation window 5 is the same as that of the embodiment of FIG. In this example, the positioning accuracy of the tightly packed packing 4 is improved by fitting the boss 8 protruding from the lower case 3 into the boss fitting hole 9 provided in the tightly packed packing 4. Here, by providing the boss 8 at a place other than the confirmation window 5, it is possible to prevent the sealing performance between the tight packing 4 and the lower case 3 from being affected, and improve the positioning accuracy of the tight packing 4 by the boss 8. Can be made. Further, by erecting the boss 8 from the lower case 3, the strength of the boss 8 is improved and the positioning accuracy of the tight packing 4 is improved as compared with the case where the boss is protruded from the flat tight packing 4. It can be improved further.
[0022]
【The invention's effect】
As described above, in the first aspect of the invention, the low tank provided on the upper surface of the rear portion of the toilet and the functional parts such as the local washing nozzle are placed on the lower case, and the lower case Water-tightness of a low-tank-type warm water flush toilet seat that has an opening into which a drain tube on the bottom of the low tank is fitted, and a tightly packed packing is arranged around the periphery of the opening to seal the gap between the bottom of the low tank and the lower case In the structure, a confirmation window for confirming the presence or absence of tight packing is provided in the lower case, so look into the confirmation window provided in the lower case while (or after) each part is assembled to the lower case. With this, the presence of the tight packing can be recognized at a glance, and the presence or absence of the tight packing can be easily confirmed. Therefore, it is possible to check the forgotten installation of tightly packed packing that is incorporated in the gap between the bottom of the low tank and the lower case and plays an important role in waterproofing functional parts during manufacturing, and it is possible to reliably improve the reliability of product quality. it can.
[0023]
Moreover, in addition to the effect of Claim 1, the invention described in Claim 2 causes the protruding piece to protrude outside the tightly-packed packing, and a confirmation window is provided at a position facing the protruding piece of the lower case. A confirmation window can be provided opposite the protruding piece on the outside of the tight-packed packing, which prevents the confirmation window from being located at the seal part between the tight-packed packing and the lower case. The watertightness of the functional component can be further improved without being damaged.
[0024]
In addition to the effect of the first or second aspect, the invention according to claim 3 is provided with a tightly-packed packing because the tightly-packed packing is provided with a packing projection that can be fitted into the confirmation window. At this time, by fitting the packing convex portion to the confirmation window, the tightly-packed packing can always be arranged at a normal position, and the positional deviation of the tightly-packed packing can be prevented, so that the watertightness is further improved. In addition, since it is not necessary to carefully perform the tight packing as in the prior art, the assembling work is facilitated. In addition, fitting the packing convex part to the confirmation window improves the water tightness of the confirmation window, ensuring sufficient water-tightness of the functional parts. It becomes easier to check the packing.
[0025]
According to a fourth aspect of the present invention, in addition to the effect of any one of the first to third aspects, a boss is provided on the lower case, and a boss fitting hole for fitting the boss to the tightly packed packing is provided. Because it is provided, the positioning accuracy of the tight packing can be improved by fitting the boss into the boss fitting hole of the tight packing, and the tight packing and the lower case can prevent misalignment of the tight packing. By performing the process at a part other than the seal part, it is possible to prevent the sealability between the tightly packed packing and the lower case from being affected. In addition, by standing the boss from the lower case, the strength of the boss is improved and the positioning accuracy of the tight packing can be further improved compared to the case where the boss protrudes from the flat tight packing. .
[0026]
Further, in addition to the effect of the first aspect, the invention according to the fifth aspect is characterized in that the boss is erected at a position other than the seal portion with the tight packing of the lower case, so that the water blocking property of the confirmation window is kept good. However, the positioning accuracy of the tight packing by the boss can be further improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of one embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of the vicinity of the confirmation window.
FIG. 3 is an explanatory diagram when the confirmation window is viewed from below.
FIG. 4 is a schematic plan view of the same lower case.
FIG. 5 is a schematic plan view showing an example of the lower case.
FIG. 6 is an explanatory diagram of an example in which a protruding piece is provided in the above-described tightly packed packing.
7A is a perspective view showing an example in which a packing convex portion is provided on the above-described tightly packed packing, and FIG. 7B is a cross-sectional view showing a state in which the packing convex portion is fitted in a confirmation window of a lower case. FIG.
FIG. 8 is an explanatory diagram of an example in the case where a plurality of packing convex portions are provided in the above-described tightly packed packing.
FIG. 9 is a cross-sectional view showing an example in which a boss is provided in the lower case of the above.
FIG. 10 is a perspective view of a low-tank integrated warm water washing toilet seat.
FIG. 11 is an explanatory diagram of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Toilet 2 Low tank 3 Lower case 4 Tight packing 5 Confirmation window 6 Protruding piece 7 Packing convex part 8 Boss 9 Boss fitting hole 10 Seal part

Claims (5)

A low tank provided on the rear upper surface of the toilet bowl and a functional component such as a local cleaning nozzle are placed on one lower case, and an opening is provided in the lower case for fitting a drain tube on the bottom of the low tank. To confirm the presence of tight packing in the lower case in the water tight structure of the hot water flush toilet seat integrated with the low tank, in which a tight packing is arranged at the periphery of the opening to seal the gap between the bottom of the raw tank and the lower case The water-tight structure of a low-tank integrated warm water cleaning toilet seat, characterized by providing a confirmation window. 2. The watertight structure of a low tank-integrated warm water washing toilet seat according to claim 1, wherein a protruding piece is protruded outside the tightly packed packing and a confirmation window is provided at a position facing the protruding piece of the lower case. 3. The watertight structure of a low-tank-integrated warm water washing toilet seat according to claim 1 or 2, wherein a packing convex portion that can be fitted into the confirmation window is projected from the tight packing. 4. A low-tank-integrated warm water flush toilet seat according to any one of claims 1 to 3, wherein a boss is erected on the lower case and a boss fitting hole is provided in the tightly packed packing. Watertight structure. 5. The watertight structure of a low-tank integrated warm water cleaning toilet seat according to claim 4, wherein the boss is erected at a position other than the seal portion with the tight packing of the lower case.

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